Gas adsorption device

Abstract

The utility model relates to the technical field of gas purification, in particular to a gas adsorption device, which comprises a box body, and further comprises a flow guide cavity, a gas adsorption cavity and a gas adsorption cavity, the inflow structure comprises an inflow channel and a plurality of inflow diversion channels; the adsorption bins are symmetrically arranged on the two sides of the partition plate; the flow inlet structure is arranged on the opposite side of the box body in a mirroring manner; and the confluence channel is communicated with the outflow hole and the outflow structure. Air flow is guided in the vertical direction through the vertically-distributed inflow diversion channels, and is guided in the horizontal direction through the diversion cavities, so that the diffusion area of the air flow is increased, the contact area between air and the adsorption material layer is increased, and the utilization rate of the adsorption material layer is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of gas purification, in particular to a gas adsorption device for removing malodor. Background Art

[0002] Malodorous gases have complex components, mainly including sulfur compounds, nitrogen compounds, oxygen compounds and halogen derivatives. Different gas components will form different olfactory perceptions, and different gas components will produce superposition and weakening effects of odor. Adsorption, as a waste gas treatment method, has been widely used in the field of odor pollutant treatment. However, in engineering applications, there is often a problem of low utilization rate of adsorption materials.

[0003] In conventional solutions, the airflow distribution of the adsorption material layer in the drawer-type adsorption box is uneven, resulting in low utilization of the adsorption material. The drawer-type variable-diameter gas collection hood cannot adapt to the diversion of gas at different flow rates. When the flow rate is too fast, the airflow diffusion area will be reduced. Utility Model Content

[0004] In order to solve the problem of uneven airflow distribution in the existing drawer-type gas adsorption device, which leads to low utilization rate of adsorption materials, a gas adsorption device with uniform flow distribution is provided.

[0005] The technical solution provided by the utility model is as follows:

[0006] A gas adsorption device, comprising a box body, and further comprising:

[0007] A guide cavity is arranged in the box body, wherein a baffle and a plurality of guide plates symmetrically arranged on both sides of the baffle are vertically arranged in the guide cavity, wherein the baffle is parallel to the inflow direction, and the horizontal angle between the guide plate and the inflow direction is between 40° and 50°, and the windward area of ​​the guide plate located upstream of the inflow direction is smaller than the windward area of ​​the guide plate located downstream;

[0008] An inlet structure is arranged outside the box body, comprising an inlet channel and a plurality of inlet diversion channels, one end of the inlet diversion channel is connected to the inlet channel, and the other end is connected to the guide cavity, and the plurality of inlet diversion channels are arranged in a vertical direction and symmetrically arranged with the partition as a symmetry plane;

[0009] An adsorption bin is located inside the box body and is used to contain adsorption materials. Two adsorption bins are provided and are symmetrically arranged on both sides of the partition. An inlet bin wall is provided on the side of the adsorption bin facing the partition, and an outlet bin wall is provided on the side of the adsorption bin facing away from the partition. Both the inlet bin wall and the outlet bin wall are provided with a plurality of flow holes.

[0010] A confluence channel is used for confluence of the gas flowing out of the flow holes on the outflow bin wall;

[0011] The outflow structure is arranged outside the box body and comprises an outflow branching port connected to the converging channel.

[0012] After entering from the inlet channel, the gas is dispersed into multiple inlet diversion channels. The vertically arranged inlet diversion channels divert the gas in the vertical direction. After entering the guide cavity, the guide plate with a horizontal angle with the inlet direction diverts the airflow in the horizontal direction for multiple times, and then enters the adsorption bin from the flow hole for adsorption and deodorization, and then is discharged through the outlet structure.

[0013] The utility model guides the airflow in the vertical direction through the vertically distributed inlet diversion channel, so that the airflow remains evenly distributed in the vertical direction, avoiding material waste caused by the adsorption material being idle due to gas short flow; the airflow is diverted in the horizontal direction multiple times through multiple guide plates, so that the airflow remains evenly distributed in the horizontal direction, the diffusion area of ​​the gas is increased, and thus the utilization rate of the adsorption material is improved.

[0014] Preferably, the inlet bin wall is parallel to the partition, and the guide plate is connected to the partition, so that the adsorption bin and the box body can be set to a square shape, and the guide plate is directly set on the partition for easy processing.

[0015] Preferably, the outflow bin wall is parallel to the partition, the confluence channel includes a first channel and a second channel, the second channel is arranged between the box wall on one side of the outflow structure and the adsorption bin, the first channel is arranged between the outflow bin wall and the box wall, the first channel and the second channel are connected, the first channel is parallel to the partition, and the second channel is perpendicular to the partition. The gap between the box and the adsorption bin is directly used as the confluence channel, and there is no need to manufacture it separately, which simplifies the structure and facilitates processing.

[0016] Preferably, the guide plates include a pair of front guide plates and a pair of rear guide plates, the angle between the front guide plates and the inlet flow direction is equal to the angle between the rear guide plates and the inlet flow direction, and the windward area ratio of the front guide plates to the rear guide plates is between 1:2 and 1:3.

[0017] After simulation, it was found that within the ratio range of the front deflector area to the rear deflector, the number of deflectors can be reduced as much as possible while ensuring uniform horizontal distribution of the airflow.

[0018] Preferably, the height of the outlet diversion port 52 in the vertical direction is not less than the total height of all the inlet diversion channels 32 arranged in the vertical direction, thereby avoiding the gas streamlines in the adsorption bin beginning to converge due to the reduction in the vertical height of the outlet diversion port 52, resulting in idleness of the adsorption material at the corners of the end of the adsorption bin and waste of material.

[0019] Preferably, the outflow structure further comprises an outflow diversion channel connected to the outflow diversion port, and both the inflow diversion channel and the outflow diversion channel are provided with butterfly valves for controlling the flow rate in the channel.

[0020] The butterfly valve is connected to the inlet flow diversion channel and the outlet flow diversion channel through a flange. By adjusting the opening of the butterfly valve, the size of the three gas flows entering can be controlled to adapt to gases with different flow rates, thereby adjusting the diffusion area of ​​the gas entering the adsorption material layer and adjusting the mixing degree of the gas and the adsorption material, thereby improving the utilization rate of the adsorption material.

[0021] Preferably, a plurality of bin partitions are provided in the adsorption bin to divide the adsorption bin 4 into a plurality of filling bins, and a plurality of flow holes are provided on the bin partitions.

[0022] Multiple filling bins are filled with different adsorbent materials and in different sequences to target malodorous gases of different components, thereby improving the utilization rate of the adsorbent materials.

[0023] Preferably, a plurality of filling bins are arranged in the adsorption bin, a feed port is arranged at the top of the filling bin, a discharge port is arranged at the bottom of the filling bin, an inclined bin bottom surface is arranged at the bottom of the filling bin, and the discharge port is at the lowest point of the bin bottom surface.

[0024] The inclined bottom surface of the bin facilitates the unloading of the adsorption material, prevents the adsorption material from accumulating in the dead corners of the filling bin, and avoids manual internal cleaning.

[0025] Preferably, the discharge port extends toward one side of the outflow structure or the inflow structure, so as to facilitate the operation of unloading.

[0026] Compared with the prior art, the needle protection assembly of this embodiment has the following beneficial effects:

[0027] The airflow is guided in the vertical direction through the vertically distributed inlet diversion channel, and the airflow is guided in the horizontal direction through the diversion cavity, thereby increasing the diffusion area of ​​the airflow, improving the contact area between the gas and the adsorption material layer, and increasing the utilization rate of the adsorption material layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a three-dimensional schematic diagram of the first embodiment of the utility model;

[0029] Figure 2 It is a front schematic diagram of the first embodiment of the utility model;

[0030] Figure 3 for Figure 2 Schematic diagram of the cross section at BB;

[0031] Figure 4 for Figure 2Schematic diagram of the cross section at AA in the middle;

[0032] Figure 5 It is a side schematic diagram of the first embodiment of the utility model;

[0033] Figure 6 It is a top view schematic diagram of the first embodiment of the utility model;

[0034] Figure 7 This is a schematic diagram of gas flow in Example 1 of the present utility model.

[0035] Explanation of the accompanying drawings: box body 1, guide chamber 2, partition 21, guide plate 22, front guide plate 221, rear guide plate 222, inlet structure 3, inlet channel 31, inlet diversion channel 32, adsorption bin 4, inlet bin wall 41, outflow bin wall 42, flow hole 43, filling bin 44, bin partition 45, feed port 46, discharge port 47, bin bottom surface 48, outflow structure 5, outflow diversion port 52, converging channel 6, first channel 61, second channel 62, butterfly valve 7. DETAILED DESCRIPTION

[0036] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0037] For the convenience of description, the inflow direction is defined as the horizontal direction, and the plane where the partition is located is defined as the vertical plane. The above-mentioned direction is only used for description and is not used to limit the present invention.

[0038] Embodiment 1, as Figure 1-6 As shown, a gas adsorption device comprises:

[0039] Box 1 is a square box structure;

[0040] The guide chamber 2 is arranged in the box body 1, and includes a vertically arranged partition 21 and two pairs of guide plates 22 symmetrically arranged on both sides of the partition 21. The guide plates 22 are arranged vertically, and the partition 21 is parallel to the inflow direction. The horizontal angle between the guide plates 22 and the inflow direction is 45°, and other angle values ​​between 40° and 50° can also be taken. The guide plates 22 are connected to the partition 21. The guide plates 22 include a pair of front guide plates 221 and a pair of rear guide plates 222, such as Figure 3 As shown, the angle between the front guide plate 221 and the inlet flow direction is equal to the angle between the rear guide plate 222 and the inlet flow direction, and the windward area ratio of the front guide plate 221 to the rear guide plate 222 is between 1:2-1:3, so that the airflow is uniform in the horizontal direction.

[0041] The inlet structure 3 is arranged outside the box body 1, and includes an inlet channel 31 and three inlet diversion channels 32. One end of the inlet diversion channel 32 is connected to the inlet channel 31, and the other end is connected to the guide cavity 2. The multiple inlet diversion channels 32 are arranged in the vertical direction and symmetrically arranged with the partition plate 21 as the symmetry plane;

[0042] The adsorption bin 4 is located inside the box body 1 and is used to accommodate the adsorption material. Two adsorption bins 4 are provided and are symmetrically arranged on both sides of the partition 21. The side of the adsorption bin 4 facing the partition 21 is provided with an inlet bin wall 41, and the side of the adsorption bin facing away from the partition is provided with an outlet bin wall 42. Both the inlet bin wall 41 and the outlet bin wall 42 are provided with a plurality of flow holes 43. The bin wall on the side facing the partition 21 and the bin wall on the side facing away from the partition 21 of the adsorption bin 4 are parallel to the partition 21.

[0043] The outflow structure 5 is arranged outside the box body 1 and is symmetrical to the partition plate 21. The outflow structure 5 and the inflow structure 3 are mirror-imaged on the wall surface on the opposite side of the box body 1, that is, the inflow structure 3 and the outflow structure 5 have the same height range in the vertical direction. The outflow structure 5 includes three outflow diversion ports 52 and corresponding outflow diversion channels.

[0044] The confluence channel 6 is connected to the flow hole 43 of the outflow bin wall 42 and the outflow diversion port 52, including a second channel 62 arranged between the wall of the box body 1 and the adsorption bin 4 on one side of the outflow structure 5, and a first channel 61 arranged between the outflow bin wall 42 and the wall of the box body 1, the first channel 61 is connected to the second channel 62, the first channel 61 is parallel to the partition 21, and the second channel 62 is perpendicular to the partition 21;

[0045] Both the inlet flow diversion channel 32 and the outlet flow diversion channel 52 are provided with butterfly valves 7 for controlling the flow rate in the channels, and the butterfly valves 7 are connected to the adsorption box through flanges.

[0046] A plurality of bin partitions 45 may be provided in the adsorption bin 4 to divide the adsorption bin 4 into a plurality of loading bins 44, for example Figure 3 As shown, three bin partitions 45 are provided to divide the adsorption bin 4 into four filling bins 44, and a plurality of flow holes 43 are provided on the bin partitions 45. Figure 4 As shown, the bin partition 45 is parallel to the partition 21, a feed port 46 is provided at the top of the filling bin 44, a discharge port 47 is provided at the bottom of the filling bin 44, an inclined bin bottom surface 48 is provided at the bottom of the filling bin 44, the discharge port 47 is at the lowest point of the bin bottom surface 48, and the discharge port 47 extends to one side of the outflow structure 5 or the inflow structure 3.

[0047] The four filling bins 44 can be filled with different adsorption materials. For example, for treating malodorous gases from sewage treatment plants with high hydrogen sulfide and ammonia content. The order of loading the adsorption materials can be: demisting and dust removal materials, alkali modified materials, acid modified materials and oxide modified materials. Through the combination of different materials, the selective adsorption of different components can be achieved. For malodorous gases from food waste treatment plants with low hydrogen sulfide and ammonia content, the loading order can be: degreasing materials, alkali modified materials, and secondary oxide modified materials. Different combinations can be used for malodorous gases with different components. Thereby improving the utilization rate of the adsorption materials and reducing the frequent replacement of the adsorption materials.

[0048] like Figure 7 As shown in the figure, the arrow indicates the direction of airflow. The malodorous gas enters the three inlet diversion channels 32 from the inlet channel 31, is diverted in the vertical direction, and then enters the diversion structure; the airflow is diverted horizontally through the guide plate 22, and the diverted gas passes through the flow holes 43 and enters the filling bin 44 in the adsorption bin 4 in turn, and is purified by the adsorption material layer. Each adsorption bin 4 is divided into four filling bins 44. After the gas is guided by the guide plate 22, it enters the left and right adsorption bins 4 in two ways. The two areas are symmetrically arranged and have the same function. After the malodorous gas is adsorbed by the adsorption material, the purified gas is merged by the converging channel 6 and discharged from the outlet structure 5.

[0049] The two-step gas diversion can be used to divert the malodorous gas horizontally and vertically, thereby increasing the diffusion area of ​​the gas flow. The contact area between the malodorous gas and the adsorption material is increased, and the utilization rate of the adsorption material is increased. By using the method of setting up the adsorption material compartment, adsorption materials with different properties are selected to selectively adsorb the complex malodorous gas components, further improving the utilization rate of the adsorption material. The frequency of replacing the adsorption material is reduced, and the cost of gas purification is reduced.

[0050] The outflow structure 5 and the inflow structure 3 are arranged in a mirror image, so that the airflow always remains uniform in the horizontal direction, avoiding the single outflow structure 5 converging the gas in the vertical direction, causing the dispersed gas to be gathered in the adsorption stage, reducing the adsorption efficiency, and avoiding idleness at the end edge of the adsorption material.

[0051] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, the technical solution of the present invention can be subjected to a variety of simple modifications, and these simple modifications all belong to the protection scope of the present invention.

Claims

1. A gas adsorption device, comprising a housing (1), characterized in that: Also includes: A guide cavity (2) is arranged in the box body (1), wherein a partition (21) and a plurality of guide plates (22) symmetrically arranged on both sides of the partition (21) are vertically arranged in the guide cavity (2), wherein the partition (21) is parallel to the inflow direction, and the horizontal angle between the guide plates (22) and the inflow direction is between (40)° and (50)°, and the windward area of ​​the guide plates (22) located upstream in the inflow direction is smaller than the windward area of ​​the guide plates (22) located downstream; An inlet structure (3) is arranged outside the housing (1), comprising an inlet channel (31) and a plurality of inlet diversion channels (32), one end of the inlet diversion channel (32) being connected to the inlet channel (31), and the other end of the inlet diversion channel (32) being connected to the flow guide cavity (2), and the plurality of inlet diversion channels (32) being arranged in a vertical direction and symmetrically arranged with the partition plate (21) as a symmetry plane; An adsorption bin (4) is located inside the box body (1) and is used to accommodate adsorption materials. Two adsorption bins (4) are provided and are symmetrically arranged on both sides of the partition (21). An inlet bin wall (41) is provided on the side of the adsorption bin (4) facing the partition (21), and an outlet bin wall (42) is provided on the side of the adsorption bin facing away from the partition. Both the inlet bin wall (41) and the outlet bin wall (42) are provided with a plurality of flow holes (43); A converging channel (6) for converging the gas flowing out of the flow holes (43) of the outflow bin wall (42); The outflow structure (5) is arranged outside the box body (1), and comprises an outflow branching port (52) connected to the converging channel (6).

2. The gas adsorption device according to claim 1, characterized in that: The inlet bin wall (41) is parallel to the partition plate (21), and the guide plate (22) is connected to the partition plate (21).

3. The gas adsorption device according to claim 2, characterized in that: The outflow bin wall (42) is parallel to the partition (21); the converging channel (6) comprises a first channel (61) and a second channel (62); the second channel (62) is arranged between the wall surface of the box body (1) on one side of the outflow structure (5) and the adsorption bin (4); the first channel (61) is arranged between the outflow bin wall (42) and the wall surface of the box body (1); the first channel (61) and the second channel (62) are connected; the extension direction of the first channel (61) is parallel to the partition (21); and the extension direction of the second channel (62) is perpendicular to the partition (21).

4. The gas adsorption device according to claim 2 or 3, characterized in that: The guide plates (22) comprise a pair of front guide plates (221) and a pair of rear guide plates (222), the angle between the front guide plates (221) and the inflow direction is equal to the angle between the rear guide plates (222) and the inflow direction, and the windward area ratio between the front guide plates (221) and the rear guide plates (222) is between 1:2 and 1:

3.

5. The gas adsorption device according to claim 1, characterized in that: The height of the outflow diversion port (52) in the vertical direction is not less than the total height of all the inflow diversion channels (32) arranged in the vertical direction.

6. The gas adsorption device according to claim 1, 2 or 3, characterized in that: The outflow structure (5) further comprises an outflow diversion channel connected to the outflow diversion port (52), and both the inflow diversion channel (32) and the outflow diversion channel are provided with butterfly valves (7) for controlling the flow rate in the channel.

7. The gas adsorption device according to claim 1, 2 or 3, characterized in that: A plurality of bin partitions (45) are arranged in the adsorption bin (4) to divide the adsorption bin (4) into a plurality of filling bins (44), and a plurality of flow holes (43) are arranged on the bin partitions (45).

8. The gas adsorption device according to claim 1, 2 or 3, characterized in that: A plurality of loading bins (44) are arranged in the adsorption bin (4), a feed port (46) is arranged at the top of the loading bin (44), a discharge port (47) is arranged at the bottom of the loading bin (44), an inclined bin bottom surface (48) is arranged at the bottom of the loading bin (44), and the discharge port (47) is located at the lowest point of the bin bottom surface (48).

9. The gas adsorption device according to claim 8, characterized in that: The discharge port (47) extends toward one side of the outflow structure (5) or the inflow structure (3).

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