Acetylene purification mechanism with multi-layer filtering function
Through the design of a multi-layer filtration structure and detachable filter plates, multi-stage purification of acetylene gas is achieved, solving the problems of single-layer filtration effect and low efficiency, improving the impurity removal rate and acetylene purity, and adapting to the purification needs under different working conditions.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-17
AI Technical Summary
Existing acetylene purifiers are mostly single-layer filters, which have limited filtration effectiveness and low efficiency, making it difficult to effectively remove impurities such as hydrogen sulfide and phosphine from acetylene.
It adopts a multi-layer filtration structure, including particle purification, absorption purification and spray purification. Through multi-stage filter plates, stirring rods and spray structure, it achieves multi-stage purification of acetylene gas. It uses detachable filter plates and different types of absorbent liquids to adapt to different working conditions.
It improves the impurity removal rate, ensures acetylene purity, and solves the problems of single-layer filtration's limited effect and low efficiency, possessing strong applicability and flexibility.
Smart Images

Figure CN223995651U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of acetylene purification, specifically a multi-layer filtration acetylene purification mechanism. Background Technology
[0002] Acetylene is the simplest alkyne. It is a flammable gas. It poses a violent explosion hazard in its liquid and solid states, or in its gaseous state under certain pressure. Heat, vibration, and electrical sparks can all trigger an explosion; therefore, it cannot be stored or transported after pressurization and liquefaction. It is sparingly soluble in water but readily soluble in acetone. At 15°C and a total pressure of 15 atmospheres, its solubility in acetone is 237 g / L, and the solution is stable. Therefore, industrially, acetylene is pressurized into steel drums or tanks filled with porous materials such as asbestos, allowing the porous material to absorb acetone, for storage and transportation.
[0003] Acetylene contains impurities such as hydrogen sulfide and phosphine. Due to the flammability, toxicity and strong irritant properties of hydrogen sulfide and phosphine, they need to be removed before use. Acetylene purifiers are devices that remove impurities such as hydrogen sulfide and phosphine. Most existing acetylene purifiers use single-layer filtration to remove impurities, resulting in a limited filtration effect and low filtration efficiency. Utility Model Content
[0004] To address the aforementioned problems, specifically those raised in the background section, this utility model proposes a multi-layer acetylene purification mechanism, comprising a first pipe, a first L-shaped pipe, a treatment box, a second L-shaped pipe, and a second pipe. One end of the first pipe is an air inlet, and the other end of the first pipe is fixedly connected to one end of the horizontal pipe of the first L-shaped pipe. The horizontal pipe of the first pipe is fixedly connected to and passes through the treatment box. The vertical pipe of the first L-shaped pipe is located at the bottom of the treatment box. One end of the vertical pipe of the second L-shaped pipe is fixedly connected to the upper eccentric part of the treatment box. One end of the horizontal pipe of the second L-shaped pipe is fixedly connected to one end of the second pipe, and the other end of the second pipe is an exhaust end. A particulate purification structure is installed inside the first pipe, an absorption purification structure is installed inside the treatment box, and a spray purification structure is installed inside the second pipe.
[0005] The particle purification structure includes several filter plates and several pairs of retaining springs.
[0006] The first pipe has several rectangular openings on one side. The inner wall of the first pipe has a corresponding U-shaped groove corresponding to each rectangular opening. One end of each filter plate has a corresponding handle. The other end of each filter plate passes through the corresponding rectangular opening and is engaged in the corresponding U-shaped groove. The opposite ends of each pair of retaining springs respectively hold one end of the corresponding filter plate.
[0007] A further feature of this invention is that the absorption and purification structure includes a motor, a shaft, a pair of circular perforated plates, and two sets of stirring rods.
[0008] The upper eccentric part of the treatment box is fixedly connected to the liquid inlet, and the lower part of one side of the treatment box is fixedly connected to the liquid drain valve. A pair of circular perforated plates are fixedly connected inside the treatment box. The vertical pipe of the L-shaped tube is fixedly connected to and passes through the pair of circular perforated plates. The motor is installed on the upper side of the treatment box. The output end of the motor passes through the treatment box and is fixedly connected to the shaft. The lower end of the shaft is connected to the bearing and passes through the pair of circular perforated plates. Two sets of stirring rods are fixedly connected to the outer side of the pair of shafts. The two sets of stirring rods are located above the corresponding circular perforated plates.
[0009] A further feature of this invention is that the spray purification structure includes a housing;
[0010] The lower side of the second pipe is fixedly connected to the corresponding drain pipe. The housing is placed inside the upper side of the second pipe. The upper side of the housing is fixedly connected to the inlet pipe, which passes through the second pipe. The lower side of the housing is fixedly connected to a set of evenly arranged nozzles.
[0011] A further feature of this invention is that both pipe one and pipe two are rectangular pipes.
[0012] A further feature of this invention is that each pair of retaining rings is an elastic retaining ring.
[0013] A further feature of this invention is that each of the filter plates is composed of a frame and a filter screen, and each of the filter plates is a detachable filter plate.
[0014] A further feature of this invention is that each of the stirring rods has a corresponding set of evenly arranged needle-shaped rods on its lower side.
[0015] The beneficial technical effects of this utility model are as follows: This utility model employs a multi-layer filtration structure for acetylene gas, including particle purification, absorption purification, and spray purification, achieving multi-stage purification of acetylene gas. It removes different types of impurities, effectively improving the impurity removal rate and ensuring the purity of acetylene. The filter plates are detachable, facilitating disassembly and replacement, thus solving the problems of single-layer filtration in traditional acetylene purifiers, which result in limited filtration effects and low filtration efficiency. The device can adjust the number and type of filter plates, as well as the types of absorption liquid and spray liquid, according to different purification needs, exhibiting strong applicability and meeting the acetylene purification requirements under various working conditions. Attached Figure Description
[0016] Figure 1 The front view of this utility model is shown.
[0017] Figure 2 A side view of the present invention is shown.
[0018] The attached diagram includes the following reference numerals: 1. Pipe 1, 2. Filter plate, 3. L-shaped pipe 1, 4. Motor, 5. L-shaped pipe 2, 6. Pipe 2, 7. Shell, 8. Processing box, 9. Circular perforated plate, 10. Stirring rod, 11. Shaft, 12. Snap ring. Detailed Implementation
[0019] The following is a reference to the appendix. Figures 1-2 The preferred embodiments of this utility model are described below. Those skilled in the art should understand that these embodiments are merely for explaining the technical principles of this utility model and are not intended to limit the scope of protection of this utility model.
[0020] This invention proposes a multi-layer acetylene purification mechanism. When using this device, the acetylene gas to be purified is connected to the inlet end of pipe 1. An appropriate number of filter plates 2 are selected (if the amount of acetylene to be filtered is small, a frame without a filter screen can be used). Holding the handle of the filter plate 2, the other end of the filter plate 2 is passed through the corresponding rectangular groove and slid into the corresponding U-shaped groove. The edge of the filter plate 2 is aligned with the outer side of pipe 1. At this time, a pair of corresponding retaining springs 12 lock the outer edge of the filter plate 2, fixing one filter plate 2 in the corresponding U-shaped groove. This process is repeated to insert the remaining filter plates 2 into their corresponding U-shaped grooves. The appropriate amount of solution is poured into the treatment tank 8 through the inlet in the U-shaped chute. The inlet pipe of the shell 7 is connected to an external liquid pump. The motor 4 is started, and the motor 4 drives the two sets of stirring rods 10 to rotate through the shaft 11. The acetylene gas to be purified is injected. The acetylene first enters the pipe 1 and passes through a set of filter plates 2. The solid particles in the acetylene gas are purified once through the filter screen of the filter plates 2. The acetylene gas after the first purification is injected into the solution in the treatment tank 8 through the L-shaped pipe 3 (CuSO4 or NaClO solution can be selected to remove H2S and PH3 impurities in acetylene). Purification is carried out in the solution in the treatment tank 8. Bubbles are easily generated during this process. Larger bubbles are broken up through the through-holes of a pair of circular perforated plates 9. A set of stirring rods 10 rotates to uniformly mix the acetylene gas with the solution, while needle-shaped rods mounted on the stirring rods 10 break up smaller bubbles to prevent them from affecting the purification effect. The acetylene after secondary purification enters pipe 6 through L-shaped tube 2 5. NaOH solution is sprayed from the shell 7 through a nozzle to neutralize the acetylene after secondary filtration, preventing acidic impurities in the acetylene from causing corrosion or adverse effects on subsequent equipment or processes. The acetylene after tertiary purification is discharged through pipe 2 6 to the next process (gas collection). This device employs a multi-layer filtration structure, including particulate purification, absorption purification, and spray purification, to achieve multi-stage purification of acetylene gas. It removes different types of impurities, effectively improving the impurity removal rate and ensuring the purity of acetylene. Filter plate 2 is detachable, facilitating disassembly and replacement, thus solving the problems of single-layer filtration, limited filtration effect, and low filtration efficiency inherent in traditional acetylene purifiers. The number and type of filter plates, as well as the types of absorption and spray liquids, can be adjusted according to different purification needs, making it highly adaptable and meeting the acetylene purification requirements under various operating conditions.
[0021] Although the present invention has been described with reference to preferred embodiments, various modifications can be made to it and components can be replaced with equivalents without departing from the scope of the present invention. In particular, the technical features mentioned in the various embodiments can be combined in any manner as long as there is no structural conflict. The present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.
[0022] In the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.
[0023] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0024] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.
[0025] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.
Claims
1. A multi-layer filtration acetylene purification mechanism, comprising a first pipe (1), a first L-shaped pipe (3), a treatment box (8), a second L-shaped pipe (5), and a second pipe (6), characterized in that: One end of the pipeline one (1) is the air inlet end, the other end of the pipeline one (1) is fixedly connected with the horizontal pipe one end of the L-shaped pipe one (3), the horizontal pipe of the pipeline one (1) is fixedly connected with the processing box (8), the vertical pipe of the L-shaped pipe one (3) is located in the bottom of the processing box (8), the vertical pipe one end of the L-shaped pipe two (5) is fixedly connected with the upper eccentric part of the processing box (8), the horizontal pipe one end of the L-shaped pipe two (5) is fixedly connected with one end of the pipeline two (6), the other end of the pipeline two (6) is the air outlet end, the pipeline one (1) is provided with the particle purification structure, the processing box (8) is provided with the absorption purification structure, and the pipeline two (6) is provided with the spray purification structure. The particle purification structure comprises a plurality of filter plates (2) and a plurality of pairs of clamping springs (12). One side of the pipeline one (1) is provided with a plurality of rectangular openings, the inner wall of the pipeline one (1) corresponding to each rectangular opening is provided with a corresponding U-shaped sliding groove, one end of each filter plate (2) is provided with a corresponding handle, the other end of each filter plate (2) is clamped in the corresponding U-shaped sliding groove through the corresponding rectangular opening, and the opposite ends of each pair of clamping springs (12) clamp one end of the corresponding filter plate (2) respectively.
2. A multi-stage filtered acetylene purifier according to claim 1, wherein: The absorption purification structure comprises a motor (4), a shaft (11), a pair of circular hole plates (9) and two groups of stirring rods (10). The upper eccentric part of the processing box (8) is fixedly connected with the liquid inlet, the lower part of one side of the processing box (8) is fixedly connected with the liquid outlet valve, a pair of circular hole plates (9) are fixedly connected in the processing box (8), the vertical pipe of the L-shaped pipe one (3) is fixedly connected with and passes through the pair of circular hole plates (9), the motor (4) is arranged on the upper side of the processing box (8), the output end of the motor (4) passes through the processing box (8) and is fixedly connected with the shaft (11), the lower end of the shaft (11) is connected with the bearing and passes through the pair of circular hole plates (9), and the outer sides of the shaft (11) are fixedly connected with two groups of stirring rods (10). Two groups of stirring rods (10) are located above the corresponding circular hole plate (9).
3. A multi-stage filtered acetylene purifier according to claim 1, wherein: The spray purification structure comprises a shell (7). The lower side of the pipeline two (6) is fixedly connected with the corresponding liquid outlet pipe, the shell (7) is arranged in the upper side of the pipeline two (6), the upper side of the shell (7) is fixedly connected with the liquid inlet pipe, the liquid inlet pipe passes through the pipeline two (6), and the lower side of the shell (7) is fixedly connected with a group of uniformly arranged spray heads.
4. A multi-stage filtered acetylene purifier according to claim 1, wherein: The pipeline one (1) and the pipeline two (6) are rectangular pipes.
5. A multi-stage filtered acetylene purifier according to claim 1, wherein: Each pair of clamping springs (12) is an elastic clamping spring.