Noise reduction and elimination device of air separation purification system

Abstract

The utility model relates to the technical field of noise reduction, in particular to a noise reduction and elimination device of an air separation purification system. Comprising a reaction tank, one side of the reaction tank is provided with a fan, an air outlet of the fan is communicated with two connecting pipes, pipe orifices of the two connecting pipes are communicated with an upper compartment and a lower compartment of the corresponding reaction tank respectively, the other side of the reaction tank is further communicated with a flow dividing pipe, and the flow dividing pipe is provided with three branch pipes. Branch pipes of the flow dividing pipes are respectively communicated with the three compartments of the reaction tank, the tail ends of the flow dividing pipes are jointly communicated with a noise reduction box, and noise reduction plates for reducing noise are arranged in the noise reduction box at intervals. According to the design of the utility model, the shunting pipe is introduced, the emptying gas is led out from a plurality of different height positions of the reaction tank, and the perforation layout on the specially-made noise reduction plate in the noise reduction box is combined, so that the gas flow path is ingeniously changed, the gas diffusion is promoted, the gas emission centrality is reduced, the gas can be stably discharged, and the noise reduction and elimination effects are achieved.

Description

Technical Field

[0001] This utility model relates to the field of noise reduction technology, and in particular to a noise reduction and silencing device for an air separation purification system. Background Technology

[0002] Air separation purification refers to the process of separating various gaseous components from air and purifying these gases to a specific purity. Air is mainly composed of nitrogen, oxygen, and small amounts of argon, carbon dioxide, and other rare gases. In industry, to meet the high requirements of various applications, such as medical, metallurgical, chemical, and electronic fields, air needs to be separated and purified. Air separation units are typically used; these are industrial devices for separating air components. During operation, the regeneration steps of the molecular sieve involve heating, cooling, pressure equalization, and pressure relief, which release a certain amount of volatile gases, including contaminated nitrogen generated during regeneration and contaminated nitrogen within the tower. Direct emission of these gases into the atmosphere not only causes noise pollution but may also have other negative environmental impacts.

[0003] To reduce noise pollution, a common practice is to install a silencer on one side of the air separation unit to effectively reduce exhaust noise. However, due to the presence of molecular sieves, the exhaust velocity of the internal air may be slower than the intake velocity, resulting in gas not being discharged in time. In this case, the molecular sieve located at the air inlet may generate additional production noise due to internal pressure changes.

[0004] To optimize this process, the location and design of the silencer can be optimized to ensure that it effectively reduces noise without hindering the normal flow of gas, thereby achieving a quieter operating environment. Therefore, a noise reduction and silencing device for an air separation purification system is necessary. Utility Model Content

[0005] In order to overcome the shortcomings of the existing technology, this utility model provides a noise reduction and silencing device for an air separation purification system. By optimizing the position and design of the silencer, it ensures that it can effectively reduce noise without hindering the normal flow of gas.

[0006] The technical implementation scheme of this utility model is as follows: a noise reduction and silencing device for an air separation purification system, comprising a support, a reaction vessel, a filter plate, a fan, a diversion pipe, a noise reduction box, a noise reduction plate, a hinge, and a cover plate. Two supports are provided, each with a reaction vessel mounted on its top. The reaction vessel is symmetrically arranged with filter plates arranged vertically, dividing it into three compartments: upper, middle, and lower. Molecular sieves are filled in the middle compartment of the reaction vessel. A fan is installed on one side of the reaction vessel, with two connecting pipes connected to its outlet. The outlets of the two connecting pipes are respectively connected to the upper and lower compartments of the corresponding reaction vessel. A diversion pipe is also connected to the other side of the reaction vessel, having three branch pipes. Each branch pipe is connected to one of the three compartments of the reaction vessel. A noise reduction box is connected to the end of the diversion pipe. The upper end of the noise reduction box is open, and a cover plate is hinged to the opening. Noise reduction plates for noise reduction and silencing are also spaced inside the noise reduction box.

[0007] More preferably, the noise reduction plate has a series of perforations spaced apart, with each adjacent perforation arranged at an angle in opposite directions, for orderly drainage and noise elimination.

[0008] More preferably, it also includes a guide plate, with the bottom of the noise reduction box having a guide plate for guiding the water flow direction, the guide plate being raised in the middle and inclined on both sides.

[0009] More preferably, it also includes a central frame and a guide pipe. The central frame is located at the bottom of the noise reduction box and below the guide plate. The central frame is connected to a guide pipe for discharging water.

[0010] More preferably, it also includes a snap fastener, which is provided on the side of the noise reduction box opening away from the hinge to engage with the end of the cover plate, in order to fix the position of the cover plate.

[0011] More preferably, it also includes a filter screen, with a filter screen for screening impurities installed on the side of the noise reduction box away from the reaction vessel.

[0012] Compared with the prior art, the present invention has the following advantages: 1. The present invention introduces a diversion pipe to lead out the venting gas from multiple different height positions of the reaction vessel, and combines the perforated layout on the specially made noise reduction plate in the noise reduction box to cleverly change the airflow path and promote gas diffusion. This design reduces the concentration of gas emission, effectively avoids the noise problem caused by rapid exhaust, and ensures that the gas can be discharged smoothly, thereby effectively reducing the noise during exhaust and achieving the effect of noise reduction and sound attenuation.

[0013] 2. This utility model forms a highly efficient water guiding and discharge structure by setting up a guide plate, a central frame and a guide pipe. This structure can not only prevent the potential damage to the equipment caused by water accumulation, but also simplify the subsequent water treatment process and improve the operating efficiency and maintenance convenience of the entire device. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0015] Figure 2 This is a three-dimensional structural cross-sectional view of the support, reaction vessel, and filter plate of this utility model.

[0016] Figure 3 This is a three-dimensional structural cross-sectional view of the components of this utility model, such as the diverter, noise reduction box, and noise reduction plate.

[0017] Figure 4 This is a three-dimensional structural cross-sectional view of the noise reduction plate, air guide plate, and central frame of this utility model.

[0018] The components in the attached diagram are labeled as follows: 1. Support, 2. Reaction vessel, 3. Filter plate, 4. Fan, 5. Diversion pipe, 6. Noise reduction box, 7. Noise reduction plate, 8. Hinge, 9. Cover plate, 10. Buckle, 11. Guide plate, 12. Central frame, 13. Guide pipe, 14. Filter screen. Detailed Implementation

[0019] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to 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.

[0020] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. It should be understood that the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0021] Example: A noise reduction and silencing device for an air separation and purification system, such as Figures 1-4As shown, the device includes a support frame 1, a reaction vessel 2, filter plates 3, a fan 4, a diversion pipe 5, a noise reduction box 6, a noise reduction plate 7, a hinge 8, and a cover plate 9. Two support frames 1 provide structural support, ensuring the stability and safety of the entire device. The reaction vessel 2 is mounted on top of both support frames 1. The reaction vessel 2 is the core part of the air separation process. Filter plates 3 are symmetrically arranged inside the reaction vessel 2 to ensure airflow and separate different working areas, thus dividing the reaction vessel 2 into upper, middle, and lower compartments. Molecular sieves are filled in the middle compartment of the reaction vessel 2 to adsorb specific gas components and achieve air separation. A fan 4 is fixedly installed on the left side of the reaction vessel 2, providing power to allow airflow through the different compartments of the reaction vessel 2, promoting the air separation process. Two symmetrically arranged connecting pipes are connected to the outlet of the fan 4, with the ends of the two connecting pipes connected to the corresponding upper and lower compartments of the reaction vessel 2, ensuring airflow throughout. A connection is also provided on the other side of the reaction vessel 2. A diversion pipe 5 has three branch pipes, each of which is connected to one of the three compartments of the reaction vessel 2. This allows for the distribution of the vented gas in each compartment of the reaction vessel 2 after molecular sieve treatment at different heights, ensuring uniform airflow distribution and avoiding concentrated treatment, thereby reducing additional noise generation. The ends of the diversion pipes 5 are also connected to a noise reduction box 6, which is responsible for collecting the gas discharged from the reaction vessel 2 and performing noise reduction and silencing treatment inside the box. The upper end of the noise reduction box 6 is open, and a cover plate 9 is connected to the opening of the noise reduction box 6 by a hinge 8, allowing the cover plate 9 to be rotated to open or close for easy maintenance and inspection. The interior of the noise reduction box 6 is also equipped with noise reduction plates 7 at intervals. The noise reduction plates 7 have a series of perforations at intervals, with each adjacent perforation inclined in a relative direction. This causes the gas to be redirected and diffused as it passes through, thereby reducing the gas flow rate and turbulence, further effectively reducing exhaust noise, achieving orderly flow and eliminating noise.

[0022] like Figure 4 As shown, it also includes a guide plate 11. The bottom of the noise reduction box 6 is provided with a guide plate 11 for guiding the direction of water flow. The guide plate 11 is in a state of being raised in the middle and tilted on both sides, thereby effectively guiding the water flow to the sides and avoiding water accumulation.

[0023] like Figure 4 As shown, it also includes a central frame 12 and a guide pipe 13. A central frame 12 is provided at the bottom of the noise reduction box 6, located below the guide plate 11. A guide pipe 13 for discharging water is connected to the central frame 12. The central frame 12 is used to collect the water flow guided by the guide plate 11 and discharge it through the guide pipe 13.

[0024] like Figure 4As shown, it also includes a buckle 10. A buckle 10 is provided on the side of the noise reduction box 6 away from the hinge 8, which engages with the end of the cover plate 9, thereby fixing the position of the cover plate 9 and ensuring that the cover plate 9 securely closes the opening of the noise reduction box 6.

[0025] like Figure 4 As shown, it also includes a filter screen 14. The side of the noise reduction box 6 away from the reaction vessel 2 is provided with a filter screen 14 for screening impurities, which is used to filter impurities in the discharged gas and ensure the cleanliness of the discharged gas.

[0026] In operation, first start the blower 4. The blower 4 supplies airflow into the reaction tank 2 through the connecting pipe. The airflow passes through the molecular sieve layer for separation, during which a certain amount of vented gas is released, including the waste nitrogen generated during regeneration and the waste nitrogen in the tower. The vented gas then flows smoothly from the other side of the reaction tank 2 through the diversion pipe 5. Since the diversion pipe 5 has three branch pipes located at the upper, middle, and lower compartments respectively, the airflow is diverted through the branch pipes at different heights during the flow process, reducing the concentration of airflow and avoiding the generation of additional noise. This allows the vented gas to be fully introduced into the noise reduction box 6. When the vented gas enters the noise reduction chamber 6 through the diversion pipe 5, the gas first encounters the noise reduction plates 7. The perforations on each noise reduction plate 7 are arranged at an angle, causing the gas to change direction and diffuse as it passes through, thereby reducing the gas flow rate and turbulence, helping to absorb and scatter sound waves, and further effectively reducing exhaust noise, thus achieving the final noise reduction and silencing effect. At the same time, a large amount of water will be generated during the molecular sieve regeneration process. In this case, the guide plate 11 can help guide the water to the concentration frame 12 at the bottom of the noise reduction chamber 6, and then discharge it through the guide pipe 13 for subsequent discharge treatment, while preventing water accumulation from affecting the equipment.

[0027] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A noise reduction device for an air separation purification system, comprising a support (1), characterized in that, Reaction tank (2), filter plate (3), fan (4), shunt pipe (5), noise reduction box (6), noise reduction plate (7), hinge (8) and cover plate (9), the bracket (1) is provided with two, the top of two said bracket (1) is provided with reaction tank (2), the inside of the reaction tank (2) is symmetrically provided with filter plate (3) up and down, to divide the reaction tank (2) into three compartments from top to bottom, the middle compartment of the reaction tank (2) is filled with molecular sieve, and the reaction tank (2) is provided with a fan (4) on one side, the outlet of the fan (4) is connected with two connecting pipes, the pipe orifices of the two connecting pipes are respectively connected with the upper and lower compartments of the corresponding reaction tank (2), and the other side of the reaction tank (2) is also connected with a shunt pipe (5), the shunt pipe (5) has three branch pipes, each branch pipe of the shunt pipe (5) is connected with the three compartments of the reaction tank (2), and the end of the shunt pipe (5) is also connected with a noise reduction box (6), the upper end of the noise reduction box (6) is open, and a cover plate (9) is connected to the noise reduction box (6) by a hinge (8), and the noise reduction plate (7) is also arranged in the noise reduction box (6) for noise reduction.

2. The noise reduction device of claim 1, wherein the noise reduction device is configured to reduce the noise of the air separation purification system by at least 10 dB. The noise reduction plate (7) is provided with a row of perforations, and each adjacent perforation is arranged in an inclined direction, so as to drain and eliminate noise in order.

3. The noise reduction device of claim 2, wherein the noise reduction device is configured to reduce the noise of the air separation purification system by at least 10 dB. The noise reduction box (6) is also provided with a guide plate (11) at the bottom for guiding the flow direction of water.

4. The noise reduction device of claim 3, wherein the noise reduction device is configured to reduce the noise of the air separation purification system by at least 10 dB. The noise reduction box (6) is also provided with a guide pipe (13) connected to the guide plate (11) below.

5. A noise reduction device for an air separation unit as defined in claim 4, wherein: The noise reduction box (6) is also provided with a buckle (10) connected to the end of the cover plate (9) on the side away from the hinge (8), so as to fix the position of the cover plate (9).

6. A noise reduction device for an air separation unit as defined in claim 5, wherein, The noise reduction box (6) is also provided with a filter screen (14) on the side away from the reaction tank (2) for screening impurities. The noise reduction box (6) is also provided with a filter screen (14) on the side away from the reaction tank (2) for screening impurities.

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