Multi-stage acetylene gas purification and drying device

Abstract

The utility model belongs to gas purification drying technical field especially is a kind of acetylene gas multistage purification drying device, including purification box, four chambers are seted in the purification box, passage is set between adjacent two chambers, the side fixed communication of purification box has acetylene gas inlet pipe, the other side fixed communication of purification box has suction pump, the front side fixed connection of purification box has controller, the chamber in left side is provided with filtration purification mechanism, absorption purification mechanism is provided in the chamber in middle, depth drying mechanism is provided in the chamber in right side, the side fixed communication of suction pump has outlet tube, flowmeter is provided on the outlet tube.The utility model structure design is reasonable, through multistage purification drying processing, can remove all kinds of impurities in acetylene gas comprehensively, purification drying effect is remarkable, and device structure is reasonable, and dismounting maintenance is convenient and efficient, is suitable for industrial popularization and application, and reliability is high.

Description

Technical Field

[0001] This utility model relates to the field of gas purification technology, and in particular to a multi-stage purification and drying device for acetylene gas. Background Technology

[0002] Acetylene is an important industrial gas widely used in welding, cutting, and organic synthesis. Acetylene produced in industrial processes typically contains harmful substances such as solid impurities, hydrogen sulfide, phosphine, and moisture. These substances not only affect the combustion performance and chemical reactivity of acetylene but can also corrode equipment, shorten its lifespan, and even cause safety accidents. Therefore, purifying and drying acetylene is crucial.

[0003] Existing acetylene gas purification and drying devices mostly adopt single-stage or simple two-stage treatment, which has limited purification and drying effect and is difficult to completely remove harmful substances, thus failing to meet the requirements for high-purity acetylene gas. Therefore, we propose a multi-stage acetylene gas purification and drying device to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to address the aforementioned shortcomings by proposing a multi-stage purification and drying device for acetylene gas.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An acetylene gas multi-stage purification and drying device includes a purification chamber with four chambers. A passageway is provided between adjacent chambers. An acetylene gas inlet pipe is fixedly connected to one side of the purification chamber, and a vacuum pump is fixedly connected to the other side. A controller is fixedly connected to the front of the purification chamber. A filtration purification mechanism is installed in the left chamber, an absorption purification mechanism is installed in the middle chamber, and a deep drying mechanism is installed in the right chamber. An outlet pipe is fixedly connected to one side of the vacuum pump, and a flow meter is installed on the outlet pipe.

[0007] Specifically, the filtration and purification mechanism includes a coarse filter, an activated carbon screen, and a fine filter in the left-side chamber. The coarse filter, activated carbon screen, and fine filter are fixedly connected to the same mounting base on one side. The purification box has an installation port and a sliding groove on one side. The mounting base has a slot on its top. A compression spring is fixedly connected to the inner wall of the top of the sliding groove. A slider is fixedly connected to the bottom end of the compression spring. A pull plate is fixedly connected to one side of the slider. A locking plate is fixedly connected to the bottom of the pull plate. The locking plate is movably engaged in the slot.

[0008] Specifically, a sealing ring is fixedly connected inside the mounting port, and the mounting seat is slidably sleeved within the sealing ring and the mounting port.

[0009] Specifically, the slider is slidably fitted inside the groove, and a handle is fixedly connected to one side of the mounting base.

[0010] Specifically, the absorption and purification mechanism includes a pump body and an absorption liquid tank fixedly connected to the top of the purification box. The pump body is connected to the absorption liquid tank. A liquid outlet pipe is fixedly connected to the bottom of the pump body. A spray plate is rotatably connected to the bottom of the liquid outlet pipe. Multiple lower nozzles are fixedly connected to the bottom of the spray plate. Multiple upper nozzles are fixedly connected to the side of the spray plate. The axis of the upper nozzles does not intersect with the axis of the spray plate. A filter plate is fixedly connected to the middle chamber. The top of the filter plate is filled with packing material.

[0011] Specifically, a sealed bearing is fixedly connected to the top of the spray disc, and the liquid outlet pipe is fixedly sleeved inside the inner ring of the sealed bearing.

[0012] Specifically, a drain pipe is fixedly connected to the inner wall of the front side of the middle chamber, and a control valve is installed on the drain pipe.

[0013] Specifically, the deep drying mechanism includes a molecular sieve drying layer and an alumina drying layer disposed in the right chamber. A connecting plate is fixedly connected to one side of both the molecular sieve drying layer and the alumina drying layer. The same mounting bracket is fixedly connected to one side of both connecting plates. A screw is threadedly connected to one side of the mounting bracket. A threaded sleeve is fixedly connected to the other side of the purification box. The screw is threadedly fitted inside the threaded sleeve.

[0014] Specifically, multiple airflow distribution plates are provided between the molecular sieve drying layer and the alumina drying layer, and the multiple airflow distribution plates are respectively fixedly connected to the front and rear inner walls of the right-side chamber.

[0015] Specifically, the purification box has two openings on the other side, and two connecting plates are slidably fitted into the corresponding openings.

[0016] In this utility model, an acetylene gas multi-stage purification and drying device is described. Acetylene gas enters the left-side chamber through the acetylene gas inlet pipe. After passing through a coarse and fine filter, larger solid particles are filtered out first. Then, the fine filter filters out tiny impurities and any remaining particles. An activated carbon mesh adsorbs smaller particles and some harmful substances. The acetylene gas then enters the middle chamber through the left-side channel. A pump draws the absorbent liquid (such as copper sulfate solution) from the absorbent tank into the outlet pipe and spray plate. Because the axis of the upper nozzle and the axis of the spray plate do not intersect, they are relatively close. Under the reaction force of the sprayed liquid, the spray plate and the lower nozzle will be driven... The rotation of the pump, combined with the spraying action, ensures that the absorbent liquid is evenly and comprehensively sprayed onto the packing material, forming an absorbent film. This allows for full and complete contact between the acetylene gas and the absorbent liquid, absorbing harmful gases such as hydrogen sulfide and phosphine. The gas then enters the right-side chamber through the right-side channel, passing through the airflow distribution plate and the molecular sieve drying layer and alumina drying layer, enhancing the acetylene gas drying effect. The pump can be controlled by a controller, and the flow rate of the acetylene gas can be measured by a flow meter. If the flow rate is too high or too low, the output power of the pump can be adjusted to regulate the acetylene gas flow rate, resulting in better acetylene gas purification and drying.

[0017] In this utility model, the acetylene gas multi-stage purification and drying device uses a compression spring, a clamping plate, and a clamping groove to elastically engage and disassemble the mounting base, thereby facilitating the disassembly, cleaning, and replacement of the coarse filter, activated carbon screen, and fine filter, improving the purification effect. The threaded connection of screws and threaded sleeves facilitates the disassembly and assembly of the mounting frame, two connecting plates, molecular sieve drying layer, and alumina drying layer, allowing for the replacement of the saturated molecular sieve drying layer and alumina drying layer.

[0018] This utility model has a reasonable structural design. Through multi-stage purification and drying, it can completely remove various impurities from acetylene gas, with significant purification and drying effects. Moreover, the device has a reasonable structure, is easy to disassemble and maintain, and is suitable for industrial application with high reliability. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of a multi-stage purification and drying device for acetylene gas proposed in this utility model;

[0020] Figure 2 This is a cross-sectional view of a multi-stage purification and drying device for acetylene gas proposed in this utility model;

[0021] Figure 3 for Figure 2 A schematic diagram of the structure of part A;

[0022] Figure 4This is a cross-sectional view of the filtration and purification mechanism of a multi-stage acetylene gas purification and drying device proposed in this utility model.

[0023] In the diagram: 1. Purification chamber; 2. Acetylene inlet pipe; 3. Chamber; 4. Channel; 5. Filtration and purification mechanism; 6. Absorption and purification mechanism; 7. Deep drying mechanism; 8. Controller; 9. Air pump; 10. Outlet pipe; 11. Flow meter; 51. Coarse filter screen; 52. Activated carbon screen; 53. Fine filter screen; 54. Compression spring; 55. Mounting port; 56. Sealing ring; 57. Mounting base; 58. Slot; 59. Clamping plate; 510. 511. Pull plate; 512. Slider; 60. Slide rail; 61. Pump body; 62. Filter plate; 63. Packing; 64. Drain pipe; 65. Liquid outlet pipe; 66. Absorbent liquid tank; 67. Sealed bearing; 68. Spray disc; 69. Lower nozzle; 71. Upper nozzle; 72. Molecular sieve drying layer; 73. Opening; 74. Connecting plate; 75. Mounting bracket; 76. Screw; 77. Threaded sleeve; 78. Alumina drying layer; 79. Airflow distribution plate. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] Reference Figures 1-4 An acetylene gas multi-stage purification and drying device includes a purification chamber 1, which has four chambers 3. A channel 4 is provided between two adjacent chambers 3. An acetylene gas inlet pipe 2 is fixedly connected to one side of the purification chamber 1, and a vacuum pump 9 is fixedly connected to the other side of the purification chamber 1. A controller 8 is fixedly connected to the front of the purification chamber 1. A filtration purification mechanism 5 is provided in the left chamber 3, an absorption purification mechanism 6 is provided in the middle chamber 3, and a deep drying mechanism 7 is provided in the right chamber 3. An outlet pipe 10 is fixedly connected to one side of the vacuum pump 9, and a flow meter 11 is provided on the outlet pipe 10.

[0026] Furthermore, refer to Figure 1 , Figure 2 and Figure 4 The filtration and purification mechanism 5 includes a coarse filter 51, an activated carbon mesh 52, and a fine filter 53 disposed in the chamber 3 on the left side. The coarse filter 51, the activated carbon mesh 52, and the fine filter 53 are fixedly connected to the same mounting base 57 on one side. The purification box 1 has an installation port 55 and a slide groove 512 on one side. The mounting base 57 has a slot 58 on the top. A compression spring 54 is fixedly connected to the inner wall of the top of the slide groove 512. A slider 511 is fixedly connected to the bottom end of the compression spring 54. A pull plate 510 is fixedly connected to one side of the slider 511. A locking plate 59 is fixedly connected to the bottom of the pull plate 510. The locking plate 59 is movably locked in the slot 58.

[0027] Using the above scheme: Acetylene gas enters the left-side chamber 3 through the acetylene gas inlet pipe 2. After passing through the coarse filter 51 and the fine filter 53, larger solid impurities are filtered first. Then, the fine filter 53 filters out tiny impurities and any remaining small particles. The activated carbon mesh 52 adsorbs smaller impurities and some harmful substances. The elastic engagement of the compression spring 54, the clamping plate 59, and the clamping groove 58 facilitates the disassembly and assembly of the mounting base 57, thereby facilitating the disassembly, cleaning, and replacement of the coarse filter 51, the activated carbon mesh 52, and the fine filter 53, thus improving the purification effect.

[0028] Furthermore, a sealing ring 56 is fixedly connected inside the mounting port 55, and the mounting base 57 is slidably sleeved inside the sealing ring 56 and the mounting port 55 to improve the sealing performance of the installation.

[0029] Furthermore, the slider 511 is slidably sleeved in the groove 512, and a handle is fixedly connected to one side of the mounting base 57 to facilitate pulling the mounting base 57 and guide the slider 511.

[0030] Furthermore, refer to Figures 1-3 The absorption and purification mechanism 6 includes a pump body 60 and an absorption liquid tank 65 fixedly connected to the top of the purification box 1. The pump body 60 and the absorption liquid tank 65 are connected. The bottom of the pump body 60 is fixedly connected to an outlet pipe 64. The bottom end of the outlet pipe 64 is rotatably connected to a spray plate 67. The bottom of the spray plate 67 is fixedly connected to multiple lower nozzles 68. The side of the spray plate 67 is fixedly connected to multiple upper nozzles 69. The axis of the upper nozzles 69 does not intersect with the axis of the spray plate 67. A filter plate 61 is fixedly connected in the middle chamber 3. The top of the filter plate 61 is filled with packing material 62.

[0031] Using the above scheme: Acetylene gas enters the middle chamber 3 through the left channel 4. Through the pump body 60, the absorbent liquid (such as copper sulfate solution) in the absorbent liquid tank 65 is drawn into the outlet pipe 64 and the spray plate 67. Because the axis of the upper nozzle 69 does not intersect with the axis of the spray plate 67, they are relatively close. Under the reaction force of the spray, the spray plate 67 and the lower nozzle 68 will rotate. Then, under the rotation spray, the absorbent liquid can be evenly and comprehensively sprayed onto the packing 62, forming an absorbent liquid film, so that the acetylene gas and the absorbent liquid can fully and comprehensively contact each other, thereby absorbing harmful gases such as hydrogen sulfide and phosphine.

[0032] Furthermore, a sealing bearing 66 is fixedly connected to the top of the spray disc 67, and the liquid outlet pipe 64 is fixedly sleeved inside the inner ring of the sealing bearing 66, so that the spray disc 67 can be rotated and connected to the bottom end of the liquid outlet pipe 64, and the connection can be sealed at the same time.

[0033] Furthermore, a sewage pipe 63 is fixedly connected to the inner wall of the front side of the middle chamber 3, and a control valve is installed on the sewage pipe 63 to facilitate the discharge of sewage.

[0034] Furthermore, refer to Figure 1 and Figure 2 The deep drying mechanism 7 includes a molecular sieve drying layer 71 and an alumina drying layer 77 disposed in the right chamber 3. A connecting plate 73 is fixedly connected to one side of both the molecular sieve drying layer 71 and the alumina drying layer 77. The same mounting bracket 74 is fixedly connected to one side of both connecting plates 73. A screw 75 is threadedly connected to one side of the mounting bracket 74. A threaded sleeve 76 is fixedly connected to the other side of the purification box 1. The screw 75 is threadedly fitted into the threaded sleeve 76. Multiple airflow distribution plates 78 are disposed between the molecular sieve drying layer 71 and the alumina drying layer 77. The multiple airflow distribution plates 78 are respectively fixedly connected to the front and rear inner walls of the right chamber 3.

[0035] The above scheme is adopted: the gas enters the right chamber 3 through the right channel 4, and the airflow is evenly passed through the molecular sieve drying layer 71 and the alumina drying layer 77 by the airflow distribution plate 78, which improves the drying effect of acetylene gas. The screw 75 and the threaded sleeve 76 are connected by threads, which facilitates the disassembly and assembly of the mounting frame 74, the two connecting plates 73, the molecular sieve drying layer 71 and the alumina drying layer 77, so as to replace the saturated molecular sieve drying layer 71 and the alumina drying layer 77.

[0036] Furthermore, two openings 72 are provided on the other side of the purification box 1, and two connecting plates 73 are slidably fitted into the corresponding openings 72, which facilitates the installation of the connecting plates 73.

[0037] In this invention, during use, acetylene gas enters the left-side chamber 3 through the acetylene gas inlet pipe 2. After passing through the coarse filter 51 and the fine filter 53, larger solid impurities are filtered out first. Then, the fine filter 53 filters out smaller impurities and any remaining particles. The activated carbon mesh 52 adsorbs smaller impurities and some harmful substances. The acetylene gas then enters the middle chamber 3 through the left-side channel 4. The pump 60 draws the absorbent liquid (such as copper sulfate solution) from the absorbent tank 65 into the outlet pipe 64 and spray plate 67. Because the axis of the upper nozzle 69 does not intersect with the axis of the spray plate 67, they are relatively close. Under the reaction force of the sprayed liquid, the spray plate 67 and the lower nozzle 68 will be driven together. The rotation of the pump allows the absorbent liquid to be evenly and comprehensively sprayed onto the packing 62, forming an absorbent liquid film. This ensures that the acetylene gas and the absorbent liquid can fully and comprehensively contact each other, thereby absorbing harmful gases such as hydrogen sulfide and phosphine. The gas then enters the right-side chamber 3 through the right-side channel 4. The airflow is evenly distributed through the molecular sieve drying layer 71 and the alumina drying layer 77 via the airflow distribution plate 78, improving the drying effect of the acetylene gas. The controller 8 controls the pump 9, and the flow meter 11 measures the flow rate of the acetylene gas. If the flow rate is too high or too low, the output power of the pump 9 can be adjusted to regulate the flow rate of the acetylene gas, thus improving the purification and drying effect.

[0038] Furthermore, the elastic engagement of the compression spring 54, the clamping plate 59, and the clamping groove 58 facilitates the disassembly and assembly of the mounting base 57, thereby facilitating the disassembly, cleaning, and replacement of the coarse filter screen 51, the activated carbon screen 52, and the fine filter screen 53, thus improving the purification effect. The threaded connection between the screw 75 and the threaded sleeve 76 facilitates the disassembly and assembly of the mounting frame 74, the two connecting plates 73, the molecular sieve drying layer 71, and the alumina drying layer 77, so as to replace the saturated molecular sieve drying layer 71 and the alumina drying layer 77.

Claims

1. A multi-stage purification and drying device for acetylene gas, characterized in that, The device includes a purification box (1), which has four chambers (3) and a passage (4) between two adjacent chambers (3). An acetylene gas inlet pipe (2) is fixedly connected to one side of the purification box (1), and a vacuum pump (9) is fixedly connected to the other side of the purification box (1). A controller (8) is fixedly connected to the front of the purification box (1). A filtration purification mechanism (5) is installed in the left chamber (3), an absorption purification mechanism (6) is installed in the middle chamber (3), and a deep drying mechanism (7) is installed in the right chamber (3). An outlet pipe (10) is fixedly connected to one side of the vacuum pump (9), and a flow meter (11) is installed on the outlet pipe (10).

2. The acetylene gas multi-stage purification and drying device according to claim 1, characterized in that, The filtration and purification mechanism (5) includes a coarse filter (51), an activated carbon mesh (52), and a fine filter (53) disposed in the chamber (3) on the left side. The coarse filter (51), the activated carbon mesh (52), and the fine filter (53) are fixedly connected to the same mounting base (57) on one side. The purification box (1) is provided with an installation port (55) and a slide groove (512) on one side. The mounting base (57) is provided with a slot (58) on the top. A compression spring (54) is fixedly connected to the inner wall of the top of the slide groove (512). A slider (511) is fixedly connected to the bottom end of the compression spring (54). A pull plate (510) is fixedly connected to one side of the slider (511). A locking plate (59) is fixedly connected to the bottom of the pull plate (510). The locking plate (59) is movably locked in the slot (58).

3. The acetylene gas multi-stage purification and drying device according to claim 2, characterized in that, A sealing ring (56) is fixedly connected inside the mounting port (55), and the mounting base (57) is slidably sleeved inside the sealing ring (56) and the mounting port (55).

4. The acetylene gas multi-stage purification and drying device according to claim 2, characterized in that, The slider (511) is slidably sleeved in the groove (512), and a handle is fixedly connected to one side of the mounting base (57).

5. The acetylene gas multi-stage purification and drying device according to claim 1, characterized in that, The absorption and purification mechanism (6) includes a pump body (60) and an absorption liquid tank (65) fixedly connected to the top of the purification box (1). The pump body (60) and the absorption liquid tank (65) are connected. The bottom of the pump body (60) is fixedly connected to an outlet pipe (64). The bottom end of the outlet pipe (64) is rotatably connected to a spray plate (67). The bottom of the spray plate (67) is fixedly connected to multiple lower nozzles (68). The side of the spray plate (67) is fixedly connected to multiple upper nozzles (69). The axis of the upper nozzles (69) does not intersect with the axis of the spray plate (67). A filter plate (61) is fixedly connected in the middle chamber (3). The top of the filter plate (61) is filled with packing material (62).

6. The acetylene gas multi-stage purification and drying device according to claim 5, characterized in that, The top of the spray disc (67) is fixedly connected to a sealed bearing (66), and the liquid outlet pipe (64) is fixedly sleeved inside the inner ring of the sealed bearing (66).

7. The acetylene gas multi-stage purification and drying device according to claim 1, characterized in that, A drain pipe (63) is fixedly connected to the inner wall of the front side of the middle chamber (3), and a control valve is provided on the drain pipe (63).

8. The acetylene gas multi-stage purification and drying device according to claim 1, characterized in that, The deep drying mechanism (7) includes a molecular sieve drying layer (71) and an alumina drying layer (77) disposed in the chamber (3) on the right side. A connecting plate (73) is fixedly connected to one side of both the molecular sieve drying layer (71) and the alumina drying layer (77). The same mounting bracket (74) is fixedly connected to one side of both connecting plates (73). A screw (75) is threadedly connected to one side of the mounting bracket (74). A threaded sleeve (76) is fixedly connected to the other side of the purification box (1). The screw (75) is threadedly fitted inside the threaded sleeve (76).

9. The acetylene gas multi-stage purification and drying device according to claim 8, characterized in that, Multiple airflow distribution plates (78) are provided between the molecular sieve drying layer (71) and the alumina drying layer (77), and the multiple airflow distribution plates (78) are respectively fixedly connected to the front and rear inner walls of the right side chamber (3).

10. The acetylene gas multi-stage purification and drying device according to claim 8, characterized in that, The purification box (1) has two openings (72) on the other side, and two connecting plates (73) are slidably fitted into the corresponding openings (72).

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