CN217773768U - Liquefied petroleum gas sweetening tail gas treatment device - Google Patents
Liquefied petroleum gas sweetening tail gas treatment device Download PDFInfo
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- CN217773768U CN217773768U CN202221248394.9U CN202221248394U CN217773768U CN 217773768 U CN217773768 U CN 217773768U CN 202221248394 U CN202221248394 U CN 202221248394U CN 217773768 U CN217773768 U CN 217773768U
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Abstract
A liquefied petroleum gas sweetening tail gas treatment device comprises an oxidation tank and a reaction tank; the two are communicated through a detachable conversion component arranged at the upper part outside the tank body, and a filter pipe is arranged between the conversion components; the lower part of the oxidation tank is provided with an air inlet pipe, and the top of the reaction tank is communicated with and provided with a discharge pipe; the bottom wall of the oxidation tank is provided with an air duct which is communicated with an air outlet of an exhaust fan arranged outside the tank body. And then replaced the filter tube, increased the convenience when changing. The utility model discloses a set up detachable conversion assembly, increased the convenience when changing, solved the comparatively loaded down with trivial details problem of process that the active carbon used to change after the longer time.
Description
Technical Field
The utility model relates to a liquefied petroleum tail gas treatment technical field, concretely relates to processing apparatus of liquefied petroleum gas sweetening tail gas.
Background
The liquefied petroleum gas is used as a chemical product, has important applications in the aspects of urban gas, vehicle fuel and chemical raw materials, the demand is increasing in recent years, the currently adopted alkali liquor catalytic oxidation regeneration technology is a mainstream process at home and abroad in the purification and refining process of the LPG, and in the process, hydrogen sulfide and mercaptan in the alkali liquor and the LPG are subjected to chemical reaction to generate sodium sulfide and sodium mercaptide which need to be regenerated to reduce the usage amount of the alkali liquor.
For example, chinese patent publication No. CN209828648U discloses a novel tail gas treatment device for petrochemical industry, which is movably connected to a bearing seat through connecting shafts at two sides of an activated carbon adsorption plate, so as to provide power through a motor, and through mechanical transmission of a main bevel gear and an auxiliary bevel gear, the activated carbon adsorption plate is enabled to rotate circumferentially in a box body, thereby facilitating stirring of tail gas flowing through the box body through the activated carbon adsorption plate, changing the original movement direction of the tail gas flowing through the box body, improving the adsorption effect of the activated carbon adsorption plate, and stabilizing the mechanical transmission performance.
SUMMERY OF THE UTILITY MODEL
The utility model provides a processing apparatus of liquefied petroleum gas sweetening tail gas has solved the comparatively loaded down with trivial details problem of process that the active carbon changed after using longer time.
The above technical purpose of the present invention can be achieved by the following technical solutions:
a liquefied petroleum gas sweetening tail gas treatment device comprises an oxidation tank and a reaction tank; the two are communicated through a detachable conversion component arranged at the upper part outside the tank body, and a filter pipe is arranged between the conversion components; the lower part of the oxidation tank is provided with an air inlet pipe, and the top of the reaction tank is communicated with and provided with a discharge pipe; the bottom wall of the oxidation tank is provided with an air duct which is communicated with an air outlet of an exhaust fan arranged outside the tank body.
Through adopting above-mentioned technical scheme, through setting up the intake pipe, the pipeline of emission exhaust device can be connected to the intake pipe to with the inside of the leading-in oxidation tank of tail gas, and carry out abundant oxidation in the inside of oxidation tank, through setting up the pipe, the pipe can be derived the inside abundant oxidized tail gas of oxidation tank.
Preferably, the conversion assembly comprises a bearing which is arranged up and down, an inner ring at the adjacent end of the conversion assembly is in interference fit connection with two ends of the filter pipe, a threaded pipe is fixedly installed at the bottom end of the inner ring far away from the end, and the threaded pipe at the lower part is communicated with the outlet of the oxidation tank after being communicated with the guide pipe in a threaded manner; the screwed pipe at the upper part is communicated with one end of the connecting pipe, and the other end of the connecting pipe is communicated with the top of the reaction tank and then extends into the lower half part of the interior of the reaction tank.
Through adopting above-mentioned technical scheme, through setting up the screwed pipe, the screwed pipe can be rotatory on the surface of pipe or connecting pipe, and drive screwed pipe and connecting pipe or pipe separation, through setting up solid fixed ring, gu the inside active carbon of fixed ring can carry out the physics to the tail gas of process and filter, thereby reach the purpose that the desorption contains sulphur compound, through setting up the filter tube, the filter tube can drive solid fixed ring when screwed pipe and connecting pipe or pipe separation and break away from the route that the remaining pipe of connecting pipe is constituteed, and then changed the filter tube, the convenience when changing has been increased.
Preferably, a fixing ring is arranged on the inner wall of the filter tube, and activated carbon is arranged on the fixing ring.
Through adopting above-mentioned technical scheme, through setting up solid fixed ring, gu the inside active carbon of fixed ring can carry out the physics to the tail gas of process and filter to reach the purpose that the desorption contains sulphur compound.
Preferably, a direct current valve is arranged on the conduit.
Through adopting above-mentioned technical scheme, through setting up the through-flow valve, the through-flow valve can avoid the inside insufficient tail gas of oxidation reaction of oxidation tank to discharge out through the pipe.
Preferably, a plurality of anti-skidding blocks are fixedly installed on the outer wall of the threaded pipe.
Through adopting above-mentioned technical scheme, through setting up the non slipping spur, the non slipping spur can increase the frictional force between non slipping spur and the staff palm when medical personnel rotate the screwed pipe.
Preferably, a plurality of support rods are fixedly arranged on the bottom surfaces of the oxidation tank and the reaction tank.
Through adopting above-mentioned technical scheme, through setting up a plurality of bracing piece, support oxidation tank and retort through a plurality of bracing piece to make oxidation tank and retort can be more stable.
The utility model discloses a set up detachable conversion assembly, drive the route that solid fixed ring breaks away from connecting pipe and constitutes when driving screwed pipe and connecting pipe or pipe separation, and then changed the filter tube, increased the convenience when changing, solved the comparatively loaded down with trivial details problem of process that the active carbon used to change after the longer time.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the structure of the communication hole of the present invention;
FIG. 3 is a schematic view of the structure of the filtering pipe of the present invention;
fig. 4 is a schematic structural view of the fixing ring of the present invention;
reference numerals: 1. an oxidation tank; 2. a reaction tank; 3. a support bar; 4. a connecting pipe; 5. an air inlet pipe; 7. a conduit; 10. an air duct; 11. an exhaust fan; 14. a discharge pipe; 15. a filter tube; 16. a direct flow valve; 17. a bearing; 18. a threaded pipe; 19. a fixing ring; 20. and (4) anti-skid blocks.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, 2 and 3, a liquefied petroleum gas sweetening tail gas treatment device comprises an oxidation tank 1 and a reaction tank 2; the two are communicated through a detachable conversion component arranged at the upper part outside the tank body, and a filter pipe 15 is arranged between the conversion components; the lower part of the oxidation tank 1 is provided with an air inlet pipe 5, and the top of the reaction tank 2 is communicated with and provided with a discharge pipe 14; the bottom wall of the oxidation tank 1 is provided with an air duct 10, and the air duct 10 is communicated with an air outlet of an exhaust fan 11 arranged outside the tank body. The conversion assembly is used to facilitate replacement of the filter tubes 15. The exhaust fan 11 can supply fresh air to the inside of the oxidation tank 1 after starting, so that insufficient oxidation of tail gas in the oxidation tank caused by reduction of oxygen content in the oxidation tank 1 is avoided. The discharge pipe 14 can discharge the tail gas reaching the standard after the adsorption inside the reaction tank 2 to the external environment.
Referring to fig. 1, 2, 3 and 4, the conversion assembly comprises a bearing 17 arranged up and down, the inner ring of the adjacent end of the bearing is in interference fit with the two ends of the filter pipe 15 to facilitate the replacement of the filter pipe 15, the bottom end of the inner ring far away from the end is welded with a threaded pipe 18, and the threaded pipe 18 at the lower part is in threaded communication with the guide pipe 7 and then the other end is communicated with the outlet of the oxidation tank 1; the upper threaded pipe 18 is communicated with one end of the connection pipe 4, and the other end of the connection pipe 4 is communicated with the top of the reaction tank 2 and then extends into the lower half of the interior of the reaction tank 2.
A fixing ring 19 is arranged on the inner wall of the filtering pipe 15, and activated carbon is arranged on the fixing ring 19. The active carbon in the fixed ring can physically filter the tail gas passing through, thereby achieving the purpose of removing the sulfur-containing compounds.
The guide pipe 7 is provided with a direct current valve 16, so that tail gas which is not subjected to the oxidation reaction inside the oxidation tank can be prevented from being discharged through the guide pipe.
The outer wall of the threaded pipe 18 is fixedly provided with a plurality of anti-skidding blocks 20 which are made of rubber products, and when the anti-skidding blocks are used, friction force between the anti-skidding blocks and the palm of a worker is increased.
The equal fixed mounting in bottom surface of oxidation tank 1 and retort 2 has a plurality of bracing piece 3, can place air exhauster etc. in the space that the bracing piece was established, practices thrift the space.
The utility model discloses a theory of operation: when the device is used, firstly, a pipeline for discharging tail gas is connected with the air inlet pipe 5, so that the tail gas enters the inside of the oxidation tank 1 through the air inlet pipe 5, then the exhaust fan 11 is started, the exhaust fan 11 pumps the air of the external environment and holds the air entering the inside of the oxidation tank 1, the oxygen in the air can be supplemented inside the oxidation tank 1, the oxygen reacts and oxidizes with sulfides in the tail gas, the direct-flow valve 16 is in a closed state before the oxidation reaction is incomplete, the tail gas leakage caused by insufficient oxidation is avoided, after the oxidation reaction is complete, the direct-flow valve 16 is opened, the tail gas enters the inside of the filter pipe 15 through the guide pipe 7 and enters the inside of the reaction tank 2 through the connecting pipe 4, and the tail gas finally adsorbed can be discharged into the external environment through the discharge pipe 14. In the process that gas passes through the filter pipe 15, the gas can pass through the activated carbon inside the fixing ring 19, the purpose of removing sulfur-containing compounds is achieved by using the activated carbon, and when the activated carbon needs to be replaced due to long service life, the rotary threaded pipe 18 is separated from the connecting pipe 4 and the guide pipe 7, so that the working process of replacing the fixing ring 19 by workers is greatly reduced.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The device for treating the tail gas generated in the mercaptan removal of the liquefied petroleum gas is characterized by comprising an oxidation tank (1) and a reaction tank (2); the two are communicated through a detachable conversion component arranged at the upper part outside the tank body, and a filter pipe (15) is arranged between the conversion components; the lower part of the oxidation tank (1) is provided with an air inlet pipe (5), and the top of the reaction tank (2) is communicated with and provided with a discharge pipe (14); the bottom wall of the oxidation tank (1) is provided with an air duct (10), and the air duct (10) is communicated with an air outlet of an exhaust fan (11) arranged outside the tank body.
2. The liquefied petroleum gas sweetening tail gas treatment device according to claim 1, characterized in that the conversion assembly comprises bearings (17) which are arranged up and down, an inner ring at the adjacent end of the conversion assembly is in interference connection with two ends of the filter pipe (15), a threaded pipe (18) is fixedly installed at the bottom end of the inner ring at the far end, and the threaded pipe (18) at the lower part is in threaded communication with the guide pipe (7) and then the other end of the inner ring is communicated with an outlet of the oxidation tank (1); the threaded pipe (18) positioned above is communicated with one end of the connecting pipe (4), and the other end of the connecting pipe (4) is communicated with the top of the reaction tank (2) and then extends into the lower half part of the reaction tank (2).
3. The device for treating the tail gas from the mercaptan removal from liquefied petroleum gas as claimed in claim 2, wherein a fixing ring (19) is installed on the inner wall of the filtering pipe (15), and activated carbon is arranged on the fixing ring (19).
4. The device for treating the tail gas generated in the mercaptan removal of liquefied petroleum gas according to claim 2, wherein a direct current valve (16) is arranged on the conduit (7).
5. The device for treating the tail gas generated by the mercaptan removal from the liquefied petroleum gas as claimed in claim 2, wherein a plurality of anti-slip blocks (20) are fixedly arranged on the outer wall of the threaded pipe (18).
6. The device for treating the tail gas generated in the mercaptan removal of the liquefied petroleum gas according to any one of claims 1 to 5, wherein a plurality of support rods (3) are fixedly arranged on the bottom surfaces of the oxidation tank (1) and the reaction tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221248394.9U CN217773768U (en) | 2022-05-24 | 2022-05-24 | Liquefied petroleum gas sweetening tail gas treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221248394.9U CN217773768U (en) | 2022-05-24 | 2022-05-24 | Liquefied petroleum gas sweetening tail gas treatment device |
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| CN217773768U true CN217773768U (en) | 2022-11-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202221248394.9U Active CN217773768U (en) | 2022-05-24 | 2022-05-24 | Liquefied petroleum gas sweetening tail gas treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116808808A (en) * | 2023-05-24 | 2023-09-29 | 东莞市天卓干冰制品有限公司 | Dry ice tail gas recovery system |
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2022
- 2022-05-24 CN CN202221248394.9U patent/CN217773768U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116808808A (en) * | 2023-05-24 | 2023-09-29 | 东莞市天卓干冰制品有限公司 | Dry ice tail gas recovery system |
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