CN210206356U - Tail gas purifying equipment - Google Patents
Tail gas purifying equipment Download PDFInfo
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- CN210206356U CN210206356U CN201920443000.7U CN201920443000U CN210206356U CN 210206356 U CN210206356 U CN 210206356U CN 201920443000 U CN201920443000 U CN 201920443000U CN 210206356 U CN210206356 U CN 210206356U
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Abstract
The utility model discloses a tail gas purification device, which comprises an outer cylinder body, a tail gas input channel, an adsorbent filling channel and a purified gas output channel; the tail gas input channel, the adsorbent filling channel and the purified gas output channel are sequentially arranged from inside to outside by taking the central axis of the outer cylinder body as an axis; one end of the tail gas input channel is provided with a tail gas inlet, one end of the adsorbent filling channel is provided with an adsorbent unloading port, and one end of the purified gas output channel is provided with a purified gas outlet; the tail gas input channel and the adsorbent filling channel as well as the adsorbent filling channel and the purified gas output channel are separated by the adsorbent baffle, and the adsorbent baffle is provided with a gas through hole for tail gas circulation so that the tail gas flows into the purified gas output channel through the adsorbent filling channel and then is discharged from the purified gas discharge port. The tail gas purifying equipment can obviously reduce the pressure difference of tail gas passing through the tower, and ensures safe production operation.
Description
Technical Field
The utility model relates to a tail gas purification technical field especially relates to a tail gas clean-up equipment.
Background
The hydrogenation unit usually produces H-containing gas in the petrochemical production process2S and other harmful gasesTherefore, the tail gas containing harmful gases is usually treated by adsorption with an adsorbent.
At present, gas moves along the axial direction in the traditional adsorption tower, the adsorption effect emphasizes the height-diameter ratio of the adsorbent filled in the adsorption tower, and the pressure difference is increased along with the increase of the height of the tower and the increase of the flow rate of the gas, however, the high pressure difference is not favorable for the stable control of the adsorption operation, and certain potential safety hazard can be brought. In addition, when the tail gas treatment needs a plurality of adsorbents with different functions, such as deoiling adsorbent, hydrogen sulfide removing adsorbent, ammonia removing adsorbent, chlorine removing adsorbent, etc., if the adsorbents are filled in the same adsorption tower, or the adsorption tower needs to be designed into a complex structure of a plurality of adsorbent beds, so as to avoid confusion of different kinds of used adsorbents during the unloading, or various adsorbents are filled in independent adsorption towers, but the manufacturing cost of the adsorption towers is increased; or the adsorption towers are sequentially stacked and filled in the same bed layer, the method can reduce the manufacturing difficulty of the adsorption towers, but confusion among different used adsorbents is brought when the adsorbents are discharged, and difficulty is brought to solid waste treatment.
Therefore, there is a need to develop a new tail gas purifying apparatus, so that the apparatus can be filled with one or more adsorbents according to the requirements of the process, and can remove one or more harmful components under the operating conditions of normal pressure and normal temperature, thereby achieving the purposes of purifying tail gas and protecting the environment; meanwhile, the pressure drop is ultra-low under the same air inlet flow speed condition.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to the technical problem who exists among the prior art, provide an easy industrial implementation and have tail gas treatment equipment of ultralow pressure drop.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a kind of tail gas clean-up equipment, including outer cylinder and setting up the tail gas input channel, adsorbent packing channel and purified gas output channel inside the outer cylinder; the tail gas input channel, the adsorbent filling channel and the purified gas output channel are arranged in sequence from inside to outside in the radial direction by taking the central axis of the outer cylinder as an axis;
a tail gas inlet is formed in one end of the tail gas input channel, an agent discharging port is formed in one end of the adsorbent filling channel, and a purified gas outlet is formed in one end of the purified gas output channel;
the tail gas input channel and the adsorbent filling channel as well as the adsorbent filling channel and the purified gas output channel are separated by an adsorbent baffle, and a gas through hole for tail gas circulation is formed in the adsorbent baffle, so that the tail gas from the tail gas inlet can flow from the tail gas input channel to the purified gas output channel through the adsorbent filling channel via the gas through hole so as to be discharged from the purified gas outlet;
the gas through holes comprise a gas through hole I (3-1) and a gas through hole II (3-2), the aperture of the gas through hole I is 3-5mm, and the aperture of the gas through hole II is 5-8 mm; the adsorbent baffle is divided into an upper half part and a lower half part, the gas through holes I are distributed in the upper half part or the lower half part of the adsorbent baffle, and the gas through holes II are distributed in the other corresponding half part of the adsorbent baffle.
The tail gas of hydrogenation process or other chemical industry processes is followed the utility model provides a tail gas inlet port of tail gas clean-up equipment gets into tail gas input channel after, the central axis of other barrel is the axle center, flows along radial to all directions. For the tail gas adsorption equipment along axial flow commonly used, the utility model provides an equipment has obviously shortened the movement distance of tail gas in clarification plant, consequently, gaseous pressure differential also reduces relatively.
Preferably, the sorbent packing channels comprise one or more of the sorbent packing channels; when a plurality of the adsorbent filling channels are arranged, the adsorbent filling channels are sequentially arranged between the tail gas input channel and the purified gas output channel from inside to outside, and the adsorbent filling channels are separated by the adsorbent baffle plates.
Preferably, the tail gas purifying device comprises one to four sorbent packing channels; the adsorbents filled in each adsorbent filling channel are the same or different.
Preferably, one end of each sorbent loading channel is provided with a corresponding sorbent discharge port.
Preferably, the tail gas inlet, the agent discharging port and the purified gas outlet are respectively arranged at the bottoms of the tail gas input channel, the adsorbent filling channel and the purified gas output channel.
Preferably, the gas through holes comprise a gas through hole I and a gas through hole II, and the aperture of the gas through hole I is 3-5 mm; the aperture of the gas through hole II is 5-8 mm.
Preferably, the adsorbent barrier is divided into an upper half and a lower half, wherein the vertical height of the upper half accounts for 45-55% of the vertical height of the adsorbent barrier, and the rest is the lower half of the adsorbent barrier. The gas through holes I are distributed in the upper half part or the lower half part of the adsorbent baffle, and the gas through holes II are distributed in the other half part of the adsorbent baffle correspondingly.
Preferably, the gas through holes I and the gas through holes II are alternately distributed on the same half part of the adjacent adsorbent baffle.
Preferably, the half part of the adsorbent baffle provided with the gas through holes I has an opening rate of 7-20%; the half part of the adsorbent baffle provided with the gas through hole II has an opening rate of 20-50%.
Preferably, the exhaust gas purifying apparatus is provided with support legs; the outer cylinder body extends downwards and expands the diameter; the vertical distance of the downward extension of the outer cylinder body is smaller than the height of the supporting legs.
Compared with the closest prior art, the utility model provides a technical scheme has following beneficial effect:
the utility model provides a tail gas purifying equipment, simple structure, convenient operation. After entering from the bottom of the purifying equipment, the tail gas flows upwards on one side, so that the tail gas is spread over the tail gas input channel from bottom to top; on the other hand, the gas flows from inside to outside along the radial direction of 360 degrees and penetrates through holes with different apertures on the built-in adsorbent baffle plate, and the flowing distance of the gas in the tower is shortened by nearly half under the condition of the same adsorbent filling volume, so that the pressure difference of the gas passing through the purification equipment is reduced under the condition of the same gas inlet flow rate, the safe operation coefficient of tail gas purification is ensured, and the method is particularly beneficial to protecting some low-pressure emission metering equipment (such as dry and wet gas meters).
The utility model discloses a subregion setting has the gas through hole of different apertures and percent opening on the adsorbent baffle to built-in adsorbent baffle between tail gas input channel and adsorbent filling channel makes can get into adsorbent filling channel smoothly with lower pressure differential after tail gas gets into tail gas input channel, and turns over to the flow at each adsorbent interlamination, improves the availability factor of adsorbent.
The utility model provides a tail gas clean-up equipment's adsorbent filling channel's bottom is provided with unloads the agent mouth to conveniently unload the adsorbent of deactivation, tail gas gets into and purifies the gas discharge unobstructed, is favorable to the stationary control of operation.
Drawings
Fig. 1 is a schematic longitudinal sectional view of an embodiment of an exhaust gas purifying apparatus provided by the present invention.
The device comprises an outer cylinder body 1, an outer cylinder body 2, an adsorbent baffle 3, a gas through hole 3-1, a gas through hole I, a gas through hole 3-2, a gas through hole II, a gas through hole 4, a tail gas inlet 5, a purified gas outlet 6, a tail gas discharging port 7, a tail gas input channel 8, an adsorbent filling channel 9 and a purified gas output channel.
Detailed Description
For better understanding of the present invention, the structure and operation of the tail gas purifying device provided by the present invention will be further described in detail with reference to the accompanying drawings.
As shown in fig. 1, the utility model provides a tail gas purifying device includes: the device comprises an outer cylinder body 1, a tail gas input channel 7, an adsorbent filling channel 8 and a purified gas output channel 9, wherein the tail gas input channel 7, the adsorbent filling channel 8 and the purified gas output channel 9 are arranged in sequence from inside to outside by taking the central axis of the outer cylinder body 1 as an axis and in the radial direction of the central axis; the bottoms of the tail gas input channel 7, the adsorbent filling channel 8 and the purified gas output channel 9 are respectively provided with a tail gas inlet 4, an adsorbent discharging port 6 and a purified gas outlet 5.
The utility model discloses in, all separate through adsorbent baffle 2 between tail gas input channel 7 and adsorbent filling channel 8 and the purification gas output channel 9, be equipped with the gas through hole 3 that is used for the exhaust gas circulation on the adsorbent baffle 2. Specifically, the tail gas enters the tail gas input channel 7 from the tail gas inlet 4, passes through the gas through holes 3 on the adsorbent baffle 2, flows into the purified gas output channel 9 through the adsorbent filling channel 8, and is discharged from the purified gas outlet 5 after the whole tail gas purification process is completed.
The utility model discloses in, outer barrel is the uncovered container in lower part, and outer barrel lower part is along the circumferencial direction for purifying the gas discharge port, and the gas after the purification is discharged from the purifying gas discharge port of outer barrel lower part. In addition, considering the structural characteristics of the exhaust gas purifying equipment, it can be understood that, as a preferred embodiment, the adsorbent is loaded from the top of the purifying equipment, and then the outer cylinder is hung on the cover, and the waste agent after adsorption failure can be discharged from the agent discharging port at the bottom of the purifying equipment.
The utility model discloses in, preferably, the adsorbent baffle is roughly a tubular structure, sets up the gas through-hole in different apertures according to the requirement of technology on the circumferencial direction of its first and lower half, its bottom and this tail gas clean-up equipment's bottom plate fixed connection, its top is close as far as possible the top of outer barrel is inboard. In the present invention, preferably, the adsorbent baffle plate having 2 to 4 different diameters is coaxially disposed inside the outer cylinder. Of course, the adsorbent barrier may take other shapes, such as quadrilateral, hexagonal, octagonal, irregular, etc. in cross-section, and multiple adsorbent barriers may be disposed non-coaxially.
The utility model discloses in, what tail gas adopted in clarification plant is with the central axis of outer barrel 1 as the axle center, upwards from inside to outside diffusion, absorption, has shortened the movement distance of tail gas in clarification plant, has reached the technological effect that reduces gas pressure difference.
In some preferred embodiments, the exhaust gas inlet 4 is arranged at the radial center of the exhaust gas inlet channel 7, which facilitates continuous feeding of the exhaust gas and improves the adsorption purification effect.
In some preferred embodiments, the adsorbent filling channel 8 includes a plurality of adsorbent filling channels for filling different adsorbents, which are sequentially arranged from inside to outside with the central axis of the outer cylinder 1 as the axis, each adjacent adsorbent filling channel is separated by the adsorbent baffle 2, and one or more adsorbents are filled in each adsorbent filling channel, preferably, under the operation conditions of normal pressure and normal temperature, one or more harmful components are removed, so as to achieve the purposes of purifying the exhaust gas and protecting the environment.
In some preferred embodiments, one end of each adsorbent filling channel is provided with an adsorbent discharging port 6, so that the deactivated adsorbent can be conveniently discharged, the tail gas can smoothly enter and the purified gas can smoothly discharge, and smooth control of the operation is facilitated. In the tail gas purification device shown in fig. 1, two adsorbent filling channels 8 are respectively filled with different adsorbents, and after the tail gas passes through the adsorbent filling channels 8, one or more (for example, two) harmful gas components can be removed; meanwhile, the bottom of the adsorbent channel is provided with four adsorbent discharge ports 6.
In some preferred embodiments, the gas through hole 3 of the present invention comprises a gas through hole I3-1 and a gas through hole II 3-2, wherein the diameter of the gas through hole I is 3-5 mm; the aperture of the gas through hole II is 5-8 mm. The adsorbent baffle is divided into an upper half part and a lower half part, wherein the vertical height of the upper half part accounts for 45-55% of the vertical height of the adsorbent baffle, and the rest part is the lower half part of the adsorbent baffle. The gas through holes I are distributed in the upper half part or the lower half part of the adsorbent baffle, and the gas through holes II are distributed in the other half part of the adsorbent baffle correspondingly. For example, when the gas through hole in the upper half of the adsorbent barrier 2 is a gas through hole i, the gas through hole in the lower half of the same adsorbent barrier 2 is a gas through hole ii; and vice versa.
In some preferred embodiments, the gas passage holes i and ii alternate on the same half of adjacent adsorbent barriers. For example, on the adsorbent baffle 2 separating the tail gas input channel 7 and the adsorbent filling channel 8, the lower half part of the adsorbent baffle is provided with a gas through hole I with the aperture ratio of 7% -20%, and the upper half part of the adsorbent baffle is provided with a gas through hole II with the aperture ratio of 20% -50%; the tail gas flows along the radial direction and passes through the adjacent adsorbent baffles 2, the lower half parts of the adjacent adsorbent baffles 2 are provided with gas through holes II with the aperture ratio of 20-50%, and the upper half parts of the adjacent adsorbent baffles 2 are provided with gas through holes I with the aperture ratio of 7-20%. That is, the gas passage holes i and the gas passage holes ii are alternately arranged in this order in the lower half or the upper half of the adsorbent barrier 2 from the inside to the outside.
The following specific examples are provided to illustrate preferred embodiments of the present invention.
As shown in fig. 1, after the tail gas enters the tail gas input channel 7 with D1 being phi 100, because the density of the gas through holes i 3-1 at the lower half part of the adsorbent baffle 2 is larger, a part of the tail gas firstly enters the adsorbent filling channel with D2 being phi 500 filled with the first adsorbent from the gas through holes i with smaller pore diameter at the lower half part of the adsorbent baffle 2, passes through the gas through holes ii with larger pore diameter on the next adsorbent baffle 2 after the first adsorbent is adsorbed, and enters the adsorbent filling channel with D3 being phi 1100 filled with the second adsorbent; meanwhile, the other part of the tail gas continuously rises in the tail gas input channel 7, enters the adsorbent filling channel filled with the first adsorbent from the gas through hole II with larger pore diameter at the upper half part of the adsorbent baffle plate 2, passes through the gas through hole I with smaller pore diameter on the next adsorbent baffle plate 2 after being adsorbed by the adsorbent in the adsorbent filling channel, and enters the adsorbent filling channel filled with the second adsorbent for adsorption. After being adsorbed by the two adsorbents, the treated tail gas enters a purified gas output channel 9 and is discharged from a purified gas discharge port 5 with the lower part D5 being phi 1260, as shown in the equipment shown in figure 1, the D4 of the outer cylinder 1 is phi 1200, the height H1 of the purifying equipment is 1500mm, and the height H2 of four supporting legs of the purifying equipment is 500 mm.
It should be noted that the present invention discloses the structural features and the operation of the exhaust gas purifying apparatus in detail. Those skilled in the art can determine the relevant technical details such as specific equipment structure, adsorbent type, specific operation parameters, etc. according to the disclosure of the present invention and by combining the specific process requirements and the common general knowledge in the art.
Although the present invention has been described with reference to the above embodiments, the description is only for the convenience of understanding the present invention, and is not intended to limit the present invention. Any person skilled in the art can make any modifications and changes in the form and details of the implementation without departing from the gist of the present invention, and the scope of protection of the present invention is subject to the scope defined by the claims.
Claims (9)
1. An exhaust gas purifying apparatus, characterized in that: the tail gas purification equipment comprises an outer cylinder body (1), and a tail gas input channel (7), an adsorbent filling channel (8) and a purified gas output channel (9) which are arranged in the outer cylinder body; the tail gas input channel, the adsorbent filling channel and the purified gas output channel are arranged in sequence from inside to outside in the radial direction by taking the central axis of the outer cylinder (1) as an axis;
a tail gas inlet (4) is arranged at one end of the tail gas input channel, an agent discharging port (6) is arranged at one end of the adsorbent filling channel, and a purified gas outlet (5) is arranged at one end of the purified gas output channel;
the tail gas input channel and the adsorbent filling channel and the purified gas output channel are separated by an adsorbent baffle (2), and a gas through hole (3) for tail gas to flow through is formed in the adsorbent baffle, so that the tail gas from the tail gas inlet can flow from the tail gas input channel to the purified gas output channel through the adsorbent filling channel through the gas through hole so as to be discharged from the purified gas outlet;
the gas through holes comprise a gas through hole I (3-1) and a gas through hole II (3-2), the aperture of the gas through hole I is 3-5mm, and the aperture of the gas through hole II is 5-8 mm; the adsorbent baffle is divided into an upper half part and a lower half part, the gas through holes I are distributed in the upper half part or the lower half part of the adsorbent baffle, and the gas through holes II are distributed in the other corresponding half part of the adsorbent baffle.
2. The exhaust gas purifying apparatus according to claim 1, characterized in that: the tail gas purification equipment comprises one or more adsorbent filling channels; when a plurality of the adsorbent filling channels are arranged, the adsorbent filling channels are sequentially arranged between the tail gas input channel and the purified gas output channel from inside to outside, and the adsorbent filling channels are separated by the adsorbent baffle plates.
3. The exhaust gas purifying apparatus according to claim 2, characterized in that: the tail gas purification equipment comprises one to four adsorbent filling channels; the adsorbents filled in each adsorbent filling channel are the same or different; one end of each adsorbent filling channel is provided with a corresponding adsorbent discharging port.
4. The exhaust gas purifying apparatus according to claim 3, characterized in that: the tail gas inlet, the agent discharging port and the purified gas outlet are respectively arranged at the bottoms of the tail gas input channel, the adsorbent filling channel and the purified gas output channel.
5. The exhaust gas purifying apparatus according to claim 4, characterized in that: the vertical height of the upper half part accounts for 45-55% of the vertical height of the adsorbent baffle, and the rest part is the lower half part of the adsorbent baffle.
6. The exhaust gas purifying apparatus according to claim 5, characterized in that: the gas through holes I and the gas through holes II are alternately distributed on the same half part of the adjacent adsorbent baffle.
7. The exhaust gas purifying apparatus according to claim 6, characterized in that: the opening rate of the half part of the adsorbent baffle provided with the gas through hole I is 7-20%; the half part of the adsorbent baffle provided with the gas through hole II has an opening rate of 20-50%.
8. The exhaust gas purifying apparatus according to claim 7, characterized in that: the tail gas purification equipment is provided with supporting legs; the outer cylinder body is a container with an opening at the lower part, and the outer cylinder body extends downwards and expands the diameter; the vertical distance of the downward extension of the outer cylinder body is smaller than the height of the supporting legs.
9. The exhaust gas purifying apparatus according to claim 1 or 8, characterized in that: the adsorbent baffle is of a cylindrical structure, the bottom of the adsorbent baffle is fixedly connected with the bottom plate of the tail gas purification equipment, and the top of the adsorbent baffle is close to the inner side of the top of the outer cylinder; the cross-section of the sorbent baffle is selected from: any one of a circle, a quadrangle, a hexagon, an octagon, and an irregularity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443000.7U CN210206356U (en) | 2019-04-03 | 2019-04-03 | Tail gas purifying equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920443000.7U CN210206356U (en) | 2019-04-03 | 2019-04-03 | Tail gas purifying equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210206356U true CN210206356U (en) | 2020-03-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920443000.7U Active CN210206356U (en) | 2019-04-03 | 2019-04-03 | Tail gas purifying equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210206356U (en) |
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2019
- 2019-04-03 CN CN201920443000.7U patent/CN210206356U/en active Active
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