CN220779631U - Methanol loading waste gas recovery device - Google Patents
Methanol loading waste gas recovery device Download PDFInfo
- Publication number
- CN220779631U CN220779631U CN202322300871.2U CN202322300871U CN220779631U CN 220779631 U CN220779631 U CN 220779631U CN 202322300871 U CN202322300871 U CN 202322300871U CN 220779631 U CN220779631 U CN 220779631U
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- Prior art keywords
- alcohol
- pipe
- waste gas
- methanol
- baffle
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- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 title claims abstract description 156
- 239000002912 waste gas Substances 0.000 title claims abstract description 58
- 238000011084 recovery Methods 0.000 title claims abstract description 15
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 64
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 53
- 238000005406 washing Methods 0.000 claims abstract description 27
- 239000007789 gas Substances 0.000 claims description 15
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 229910000851 Alloy steel Inorganic materials 0.000 claims description 5
- 238000001179 sorption measurement Methods 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 description 9
- 238000000034 method Methods 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
The utility model discloses a methanol loading waste gas recovery device, and relates to the field of methanol waste gas recovery. The utility model comprises an air inlet pipe, a diluted alcohol water tank and an alcohol washing tank, wherein a cavity is formed in the diluted alcohol water tank, an alcohol removing mechanism is arranged in the cavity, the alcohol removing mechanism comprises a first baffle plate and a second baffle plate, the diluted alcohol water tank is communicated with the alcohol washing tank through an air conveying pipe, firstly, waste is conveyed to the inside of the cavity through the air inlet pipe, then waste gas flows to the upper part of the cavity through the first baffle plate and the second baffle plate, the waste gas is contacted with a water body in the diluted alcohol water tank again, and then the waste gas is conveyed to the inside of the alcohol washing tank through the air conveying pipe for further washing, so that the two common alcohol removing strokes are faster, the adsorption content of the water body in the single alcohol removing tank on methanol is improved, the alcohol removing rate of the single alcohol removing tank is improved, and the alcohol removing cost is reduced.
Description
Technical Field
The utility model relates to the field of methanol waste gas recovery, in particular to a methanol loading waste gas recovery device.
Background
A large amount of methanol waste gas is generated during methanol loading in a chemical plant, wherein the most main methanol steam volatilizes into the air to form methanol waste gas due to the influence of external pressure and temperature in the methanol loading process. The methanol vapor content in the methanol waste gas at the temperature of 35 ℃ under normal pressure is up to 27.4 percent. In the prior art, there are many mature technical solutions for recovering this part of the exhaust gas, such as: absorption (water washing), adsorption, condensation, and membrane separation.
At present, the mode of dealcoholizing the methanol in the waste gas is generally a water washing method, so that the method has better stability and reduced cost, the methanol has good water solubility, and the common water washing method has the advantages that in the faster dealcoholizing reaction process, the content of dealcoholized water in a single dealcoholizing box is less, so that the methanol waste gas needs to be repeatedly washed by liquid, the content of the methanol in the waste gas is reduced, and the problem of lower dealcoholizing rate of the dealcoholizing box exists.
Disclosure of Invention
Based on the above, the utility model aims to provide a methanol loading waste gas recovery device, which aims to solve the technical problems that the content of the dealcoholized water in a single dealcoholized box is low, so that the methanol waste gas needs to be repeatedly washed by liquid to reduce the content of methanol in the waste gas, and the dealcoholized box dealcoholization rate is low.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a methyl alcohol loading waste gas recovery device, includes intake pipe, rare alcohol water tank and washes the alcohol case, the cavity has been seted up to the inside of rare alcohol water tank, the inside of cavity is provided with dealcoholize mechanism, dealcoholize mechanism includes first baffle and second baffle, rare alcohol water tank is linked together with washing the alcohol case through the gas-supply pipe, be provided with the plug valve on the gas-supply pipe.
Through adopting above-mentioned technical scheme, at first, utilize external getter device to with containing high concentration methanol waste gas, transport to the inside of cavity through breathing pipe and intake pipe, make partial methanol in the methanol waste gas and water compatible, then waste gas waft to the top of cavity, make waste gas contact with the inside water of thin alcohol water tank again through first baffle and second baffle, afterwards, transport waste gas to washing alcohol incasement portion through the gas-supply pipe and further wash, exhaust gas with methanol content low to 50mg/m3 is discharged to the atmosphere, transport the inside of intake pipe with the higher waste gas of content through the air pump, carry out dealcoholizing to waste gas reciprocally in circulation, be favorable to more quick with ordinary two dealcoholization strokes, improve the absorption content of water to methanol in the single dealcoholization case, improve the dealcoholization rate of single dealcoholization case, reduce dealcoholization cost.
Further, the bottom of intake pipe passes the top of rare alcohol water tank to fixedly connected with dredges the flow board, dredge and set up a plurality of through-holes on the flow board.
Through adopting above-mentioned technical scheme, through setting up the through-hole, be favorable to making waste gas and the inside water of rare alcohol water tank fully contact, be favorable to reducing the content of methyl alcohol in the waste gas fast, improve the dealcoholization efficiency to the waste gas.
Further, the first baffle and the second baffle are provided with two groups, and a communication groove is formed below the outer surface of the first baffle.
Through adopting above-mentioned technical scheme, through setting up the intercommunication groove, be favorable to making the water circulation of rare alcohol water tank bottom to between first baffle and the second baffle, improve the circulation of water.
Further, the top of the air inlet pipe is communicated with an air suction pipe, the air inlet pipe is connected with the air suction pipe through flange threads, and the air suction pipe is communicated with external air suction equipment.
Through adopting above-mentioned technical scheme, through setting up the breathing pipe, be favorable to absorbing external high concentration methanol waste gas fast, improve the dealcoholization efficiency of methanol waste gas, pass through flange joint with intake pipe and breathing pipe, be favorable to improving the seal between intake pipe and the breathing pipe.
Furthermore, the bottom of the alcohol washing tank is communicated with the air inlet pipe through the air guide pipe, and the air inlet pipe and the air guide pipe are both made of alloy steel materials.
Through adopting above-mentioned technical scheme, through setting up intake pipe, air duct into alloy steel material, be favorable to preventing that the inside of intake pipe, air duct from rustting because moisture is overweight, influence the use of intake pipe and air duct.
Further, the air guide pipe is provided with an air pump, the air pump is fixedly connected with the alcohol washing box, and the air pump is electrically connected with an external power supply.
Through adopting above-mentioned technical scheme, through setting up the air pump, be favorable to transporting the waste gas in the alcohol washing case to the inside of rare alcohol water tank to carry out the dealcoholization repeatedly, further reduce the alcohol content in the waste gas.
Further, the two groups of the first baffle plates and the second baffle plates are arranged in a mirror image mode along the length center line of the diluted alcohol water tank, and an exhaust port is arranged above one side of the alcohol washing tank.
Through adopting above-mentioned technical scheme, through setting up the gas vent, with the low exhaust gas discharge to the atmosphere that satisfies emission standard of methanol content, be favorable to protecting atmospheric environment, prevent the pollution to atmospheric environment.
In summary, the utility model has the following advantages:
1. according to the utility model, the first baffle plate, the second baffle plate, the air inlet pipe and the communication groove are adopted, firstly, the high-concentration methanol waste gas is conveyed to the inside of the cavity through the air suction pipe and the air inlet pipe by utilizing the external air suction device, so that partial methanol in the methanol waste gas is fused with a water body, then the waste gas floats to the upper part of the cavity, the waste gas is contacted with the water body in the dilute alcohol water tank again through the first baffle plate and the second baffle plate, then the waste gas is conveyed to the inside of the alcohol washing tank through the air conveying pipe to be further washed, the waste gas with the methanol content as low as 50mg/m < 3 > is discharged to the atmosphere, and the waste gas with the higher content is conveyed to the inside of the air inlet pipe through the air pump to carry out dealcoholization treatment on the waste gas in a cyclic and reciprocating manner, so that the common two dealcoholization strokes are faster, the adsorption content of the water body in the single dealcoholization tank on methanol is improved, and the dealcoholization rate of the single dealcoholization tank is reduced;
2. according to the utility model, by arranging the plug valve and adjusting the plug valve, the circulation diameter in the gas transmission pipe is reduced while the gas inflow of the gas inlet pipe is not changed, so that the pressure intensity in the dilute alcohol water tank is enhanced, the dealcoholization rate of the water body on the waste gas is improved, and the dealcoholization cost of the water washing method is reduced.
Drawings
FIG. 1 is a schematic perspective view of the present utility model;
FIG. 2 is a schematic diagram of a front view structure of the present utility model;
FIG. 3 is a schematic cross-sectional perspective view of the dilute alcohol tank of the present utility model;
fig. 4 is a schematic structural view of an air intake pipe according to the present utility model.
In the figure: 1. an air inlet pipe; 2. a dilute alcohol water tank; 3. washing an alcohol tank; 4. an air suction pipe; 5. a gas pipe; 6. an air pump; 7. a plug valve; 8. a dealcoholization mechanism; 801. a first baffle; 802. a second baffle; 803. a flow-dispersing plate; 804. a through hole; 805. a communication groove; 9. an exhaust port; 10. a cavity; 11. and an air duct.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.
Hereinafter, an embodiment of the present utility model will be described in accordance with its entire structure.
1-4, including intake pipe 1, thin alcohol water tank 2 and washing alcohol case 3, cavity 10 has been seted up to thin alcohol water tank 2's inside, and cavity 10's inside is provided with dealcoholization mechanism 8, and dealcoholization mechanism 8 includes first baffle 801 and second baffle 802, and thin alcohol water tank 2 is linked together with washing alcohol case 3 through gas-supply pipe 5, is provided with plug valve 7 on the gas-supply pipe 5.
Referring to fig. 1, fig. 2, fig. 3 and fig. 4, the bottom end of the air inlet pipe 1 passes through the top of the diluted alcohol water tank 2, and is fixedly connected with a flow-dispersing plate 803, a plurality of through holes 804 are formed in the flow-dispersing plate 803, and through the arrangement of the through holes 804, the waste gas is fully contacted with the water body inside the diluted alcohol water tank 2, the content of methanol in the waste gas is reduced rapidly, and the dealcoholization efficiency of the waste gas is improved.
Referring to fig. 1, 2, 3 and 4, the first baffle 801 and the second baffle 802 are provided with two groups, and the communication groove 805 is formed below the outer surface of the first baffle 801, so that the water at the bottom of the diluted alcohol water tank 2 can flow between the first baffle 801 and the second baffle 802 by arranging the communication groove 805, and the flow of the water is improved.
Referring to fig. 1, 2, 3 and 4, the top of the air inlet pipe 1 is communicated with an air suction pipe 4, the air inlet pipe 1 and the air suction pipe 4 are in threaded connection through a flange, the air suction pipe 4 is communicated with external air suction equipment, the air suction pipe 4 is arranged, so that the air inlet pipe 4 is beneficial to quickly absorbing external high-concentration methanol waste gas, the dealcoholization efficiency of the methanol waste gas is improved, and the air inlet pipe 1 and the air suction pipe 4 are connected through the flange, so that the tightness between the air inlet pipe 1 and the air suction pipe 4 is beneficial to being improved.
Referring to fig. 1, 2, 3 and 4, the bottom of the alcohol washing tank 3 is communicated with the air inlet pipe 1 through the air guide pipe 11, the air inlet pipe 1 and the air guide pipe 11 are made of alloy steel materials, and the air inlet pipe 1 and the air guide pipe 11 are made of alloy steel materials, so that the air inlet pipe 1 and the air guide pipe 11 are prevented from being rusted due to excessive moisture, and the use of the air inlet pipe 1 and the air guide pipe 11 is affected.
Referring to fig. 1, 2 and 3, the air duct 11 is provided with an air pump 6, the air pump 6 is fixedly connected with the alcohol washing tank 3, the air pump 6 is electrically connected with an external power supply, and the air pump 6 is beneficial to conveying waste gas in the alcohol washing tank 3 to the inside of the diluted alcohol water tank 2 and performing repeated dealcoholization, so that the alcohol content in the waste gas is further reduced.
Referring to fig. 1, 2, 3 and 4, the two first baffles 801 and the second baffles 802 are arranged in a mirror image along the length center line of the diluted alcohol water tank 2, the exhaust port 9 is arranged above one side of the alcohol washing tank 3, and exhaust gas with the methanol content as low as 50mg/m3 meeting the emission standard is discharged into the atmosphere by arranging the exhaust port 9, so that the atmospheric environment is protected, and the pollution to the atmospheric environment is prevented.
The implementation principle of the embodiment is as follows: firstly, the high-concentration methanol waste gas is transported to the inside of the cavity 10 through the air suction pipe 4 and the air inlet pipe 1 by utilizing an external air suction device, part of methanol in the methanol waste gas is fused with a water body, then the waste gas floats to the upper part of the cavity 10, the waste gas is contacted with the water body in the dilute alcohol water tank 2 again through the first baffle 801 and the second baffle 802, then the waste gas is transported to the inside of the alcohol washing tank 3 through the air inlet pipe 5 to be further washed, the waste gas with the methanol content as low as 50mg/m < 3 > is discharged to the atmosphere, the waste gas with the higher content is transported to the inside of the air inlet pipe 1 through the air pump 6, and the waste gas is subjected to dealcoholization treatment in a cyclic and reciprocating mode, so that the common two dealcoholization strokes are more rapid, and the adsorption content of the water body in the single dealcoholization tank to the methanol is improved.
The parts not involved in the present utility model are the same as or can be implemented by the prior art, and are not described in detail herein.
Although embodiments of the utility model have been shown and described, the detailed description is to be construed as exemplary only and is not limiting of the utility model as the particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples, and modifications, substitutions, variations, etc. may be made in the embodiments as desired by those skilled in the art without departing from the principles and spirit of the utility model, provided that such modifications are within the scope of the appended claims.
Claims (7)
1. The utility model provides a methyl alcohol loading waste gas recovery unit, includes intake pipe (1), rare alcohol water tank (2) and washes alcohol case (3), its characterized in that: the inside of rare alcohol water tank (2) has seted up cavity (10), the inside of cavity (10) is provided with dealcoholize mechanism (8), dealcoholize mechanism (8) are including first baffle (801) and second baffle (802), rare alcohol water tank (2) are linked together with washing alcohol case (3) through gas-supply pipe (5), be provided with plug valve (7) on gas-supply pipe (5).
2. The methanol loading exhaust gas recovery apparatus according to claim 1, characterized in that: the bottom of the air inlet pipe (1) penetrates through the top of the dilute alcohol water tank (2) and is fixedly connected with a flow-dispersing plate (803), and a plurality of through holes (804) are formed in the flow-dispersing plate (803).
3. The methanol loading exhaust gas recovery apparatus according to claim 1, characterized in that: the first baffle (801) and the second baffle (802) are provided with two groups, and a communication groove (805) is formed below the outer surface of the first baffle (801).
4. The methanol loading exhaust gas recovery apparatus according to claim 1, characterized in that: the top of intake pipe (1) communicates has breathing pipe (4), intake pipe (1) and breathing pipe (4) pass through flange threaded connection, breathing pipe (4) are linked together with external inhalation device.
5. The methanol loading exhaust gas recovery apparatus according to claim 1, characterized in that: the bottom of the alcohol washing tank (3) is communicated with the air inlet pipe (1) through the air guide pipe (11), and the air inlet pipe (1) and the air guide pipe (11) are made of alloy steel materials.
6. The methanol loading exhaust gas recovery apparatus as recited in claim 5, wherein: the air guide pipe (11) is provided with an air pump (6), the air pump (6) is fixedly connected with the alcohol washing tank (3), and the air pump (6) is electrically connected with an external power supply.
7. The methanol loading exhaust gas recovery apparatus according to claim 1, characterized in that: the two groups of the first baffle plates (801) and the second baffle plates (802) are arranged in a mirror image mode along the length center line of the dilute alcohol tank (2), and an exhaust port (9) is arranged above one side of the alcohol washing tank (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322300871.2U CN220779631U (en) | 2023-08-25 | 2023-08-25 | Methanol loading waste gas recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322300871.2U CN220779631U (en) | 2023-08-25 | 2023-08-25 | Methanol loading waste gas recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220779631U true CN220779631U (en) | 2024-04-16 |
Family
ID=90659673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322300871.2U Active CN220779631U (en) | 2023-08-25 | 2023-08-25 | Methanol loading waste gas recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220779631U (en) |
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2023
- 2023-08-25 CN CN202322300871.2U patent/CN220779631U/en active Active
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