CN216745530U - Methanol recovery device applied to distillation - Google Patents
Methanol recovery device applied to distillation Download PDFInfo
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- CN216745530U CN216745530U CN202220227622.8U CN202220227622U CN216745530U CN 216745530 U CN216745530 U CN 216745530U CN 202220227622 U CN202220227622 U CN 202220227622U CN 216745530 U CN216745530 U CN 216745530U
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Abstract
The application discloses be applied to recovery methyl alcohol device in distillation, including the condensing tower, be equipped with the baffle in the condensing tower, the baffle separates the condensing tower for first condensation zone and second condensation zone, and one side of first condensation zone and second condensation zone is equipped with the condensate inlet, and two condensate inlets are located the both sides that are close to the baffle respectively, and the opposite side of first condensation zone and second condensation zone is equipped with the condensate liquid outlet, and two condensate liquid outlets are located the both sides of keeping away from the baffle respectively. According to the utility model, the gas cooled at the bottom of the condensing tower is introduced and mixed with the methanol gas entering the condensing tower, the methanol gas is cooled before entering the condensing tower, and then enters the condensing tower for heat exchange, and the condensing deep cooling area of the condensing tower is longer, the gas mobility is faster, the heat exchange efficiency is faster, and the condensing efficiency is higher, so that the flow rate for treating the methanol gas is larger, the flow rate of cooling liquid can be reduced, the use of the cooling liquid is reduced, and the utilization rate of cooling capacity is high.
Description
Technical Field
The utility model relates to the technical field of chemical industry, in particular to a methanol recovery device applied to distillation.
Background
Methanol is the simplest saturated monohydric alcohol and is one of basic organic raw materials, is commonly used as an extractant of organic matters and a basic raw material for synthesizing the organic matters, and is a basic organic chemical raw material and a high-quality fuel. The method is mainly applied to the fields of fine chemical engineering, plastics and the like, is used for manufacturing various organic products such as formaldehyde, acetic acid, chloromethane, methylamine, dimethyl sulfate and the like, and is also one of important raw materials of pesticides and medicines. The methanol can be used as a novel clean fuel after deep processing, and is also added with gasoline for blending combustion.
The methanol recovery device is a basic raw material, has a large input amount during production, is a necessary raw material for a plurality of chemical plants, but has a low boiling point and a large evaporation amount, so that the methanol recovery device is indispensable for methanol recovery in the production process, needs a low temperature for cooling temperature due to a low boiling point, needs long-time condensation and a large contact area, has a large condensation equipment and a large cooling water input amount, and causes high methanol recovery cost, so that the recovery cost can be reduced and the condensation efficiency can be improved in the methanol recovery stage, and has a great significance for methanol recovery.
SUMMERY OF THE UTILITY MODEL
The application provides a recovery methyl alcohol device for in distillation has solved the problem that methyl alcohol is at condensation recovery in-process inefficiency.
The application provides a methanol recovery device applied to distillation, which comprises a condensation tower, wherein a clapboard is arranged in the condensation tower, the baffle plate divides the condensation tower into a first condensation area and a second condensation area, one side of the first condensation area and one side of the second condensation area are provided with condensate liquid inlets which are respectively positioned at two sides close to the baffle plate, a condensate liquid outlet is arranged on the other side of the first condensation area and the second condensation area, the two condensate liquid outlets are respectively positioned on the two sides far away from the baffle plate, one side of the bottom of the condensing tower is provided with an air outlet, one end of the air outlet is connected with a pressure stabilizing tank and a pressure stabilizing valve, a pressure stabilizing mechanism is arranged between the gas outlet and the pressure stabilizing tank, the gas outlet end of the pressure stabilizing tank is connected to the gas inlet end of the condensing tower, and the gas inlet end of the condensing tower is provided with an air flow meter.
Preferably, the pressure stabilizing mechanism comprises a booster pump connected between the air outlet and the pressure stabilizing tank, a straight-through air pipe is connected in parallel to the booster pump, and an electromagnetic valve is arranged on the straight-through air pipe.
Preferably, the end of giving vent to anger of surge tank passes through the three-way valve and connects the inlet end of condensing tower, just three-way valve connection the one end slope of surge tank sets up, and this slope end with the inlet direction of condensing tower is the obtuse angle setting.
Preferably, the outside of surge tank is equipped with cooling coil, cooling coil connects on the condensate liquid outlet.
Preferably, the surge tank and the condensing tower are connected by a heat-insulating pipe.
Preferably, the condensing tower is a shell and tube condenser.
Preferably, a drying tank is arranged between the pressure stabilizing tank and the condensing tower.
According to the technical scheme provided above, the application provides a be applied to recovery methyl alcohol device in distillation, in operation, the distillation column contain the methyl alcohol gas and condense in getting into the condensing tower, in the condensation process, take out the gas after the cooling of the bottom of the condensing tower, after being stable through the surge tank, with the methyl alcohol gas mixture that will get into, the distillation column contain the methyl alcohol gas and mix the back with the gas after the cooling, can be very fast cool down the methyl alcohol gas, make its quick condensation, improve condensing efficiency, and simultaneously, the cooling part of condensing tower is cut apart into two parts by the baffle, the coolant liquid gets into from the middle, both ends come out, consequently, the initial deep cooling region that gets into the coolant liquid of condensing tower is longer, condensing efficiency is higher.
Compared with the prior art, the utility model has the beneficial effects that:
1. through the arrangement of the partition plate, cooling liquid enters from the middle and comes out from the two ends, the deep cooling area of the condensing tower is improved, the condensing efficiency of the condensing tower is improved, the condensation amount in unit time is high, and the quality is good;
2. through the arrangement of the pressure stabilizing valve, the pressure stabilizing mechanism and the pressure stabilizing tank, the stability of the condensing tower can be stabilized, protective gas in the methanol condensation process can be removed, and the gas fluidity of the condensing tower is ensured;
3. through the cooperation of surge tank and condensing tower, with the lower gas of temperature and the gaseous mixture of methyl alcohol, reduce the gaseous temperature of methyl alcohol in advance, both mix the efficiency that has improved the condensation of methyl alcohol, and can guarantee that the gas in the condensing tower flows, improve heat exchange efficiency.
In summary, in the utility model, the gas cooled at the bottom of the condensing tower is introduced and mixed with the methanol gas entering the condensing tower, the methanol gas is cooled before entering the condensing tower, and then enters the condensing tower for heat exchange, and the condensing deep cooling area of the condensing tower is longer, the gas mobility is faster, the heat exchange efficiency is also faster, and the condensing efficiency is higher, so the flow rate for treating the methanol gas is larger, the flow rate of the cooling liquid can be reduced, the use of the cooling liquid is reduced, and the utilization rate of the cooling capacity is high.
Drawings
In order to more clearly illustrate the technical solution of the present application, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious to those skilled in the art that other drawings can be obtained according to the drawings without any creative effort.
FIG. 1 is a schematic diagram of a methanol recovery apparatus for distillation according to the present invention;
fig. 2 is a schematic structural diagram of a three-way valve of a methanol recovery device applied to distillation according to the present invention.
In the figure: the device comprises a condensation tower 1, a condensate liquid outlet 2, a three-way valve 3, an airflow meter 4, a partition plate 5, a condensate liquid inlet 6, a pressure stabilizing valve 7, a pressure stabilizing mechanism 8 and a pressure stabilizing tank 9.
Detailed Description
In order to make those skilled in the art better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings.
Referring to fig. 1-2, a methanol recovery device applied to distillation comprises a condensing tower 1, wherein the condensing tower 1 is a tube type condenser, the gas fluidity and the liquid fluidity after condensation are strong, the cooling efficiency of the mixed methanol gas is high, a partition plate 5 is arranged in the condensing tower 1, a condensing tube in the condensing tower 1 penetrates through the partition plate 5, the sealing performance of the partition plate 5 can ensure that most of cooling liquid enters from the middle and comes out from two ends, the partition plate 5 divides the condensing tower 1 into a first condensing area and a second condensing area, the cooling liquid is divided into two parts and sent to the condensing tower 1, one side of the first condensing area and one side of the second condensing area are provided with condensate liquid inlets 6, the two condensate liquid inlets 6 are respectively positioned at two sides close to the partition plate 5, the two condensate liquid inlets 6 are positioned at the middle position of the condensing tower 1, the cooling water enters the condensing tower 1 from the middle part, the other side of the first condensing area and the second condensing area is provided with a condensate liquid outlet 2, two condensate liquid outlets 2 are respectively positioned at two sides far away from a partition plate 5, the two condensate liquid outlets 2 are positioned at two ends of a condensing tower 1, cooling liquid comes out from two ends of the condensing tower 1, particularly methanol gas and cooling gas in the earlier stage are mixed, so that the temperature of gas entering the condensing tower 1 is lower, the length of a deep cooling area entering a cooling liquid end in the earlier stage of the condensing tower 1 can be increased, the condensing efficiency is improved, one side of the bottom of the condensing tower 1 is provided with a gas outlet, part of cooled gas is introduced, and protective gas mixed in the methanol gas can be removed, one end of the gas outlet is connected with a pressure stabilizing tank 9 and a pressure stabilizing valve 7, the pressure stabilizing valve 7 is connected with gas processing equipment and is used for processing over-pressure gas, a pressure stabilizing mechanism 8 is arranged between the gas outlet and the pressure stabilizing tank 9, other balances of the condensing tower 1 and the pressure stabilizing tank 9 are stabilized, redundant gas is discharged through the pressure stabilizing valve 7, the gas outlet end of the pressure stabilizing tank 9 is connected with the gas inlet end of the condensing tower 1, gas and the gaseous mixture of methyl alcohol after will cooling down, the outside of surge tank 9 is equipped with cooling coil, cooling coil connects on condensate liquid outlet 2, surge tank 9 and condensing tower 1 are preceding to be connected through heat preservation tubular product, guarantee the low temperature of surge tank 9, be equipped with the drying can between surge tank 9 and the condensing tower 1, after detecting there is vapor, need install drying equipment and get rid of, the inlet end of condensing tower 1 is equipped with air current table 4, detect the stability of admitting air, indirect observation methyl alcohol gas's air input.
In the utility model, the pressure stabilizing mechanism comprises a booster pump connected between an air outlet and a pressure stabilizing tank 9, the booster pump is used for pumping away the gas in the condensing tower 1, keeping the gas in the condensing tower 1 to flow efficiently, stabilizing the pressure of the gas in the pressure stabilizing tank 9, stably introducing the cooled gas at the air inlet end of the condensing tower 1, a straight-through air pipe is connected in parallel on the booster pump, when the workload is low, the booster pump can directly supply air through the straight-through air pipe, the cooled gas is sucked into the condensing tower 1 through the negative pressure at the air inlet end of the condensing tower 1, an electromagnetic valve is arranged on the straight-through air pipe, and the opening and closing of the straight-through air pipe is controlled through the electromagnetic valve.
According to the utility model, the gas outlet end of the pressure stabilizing tank 9 is connected with the gas inlet end of the condensing tower 1 through the three-way valve 3, and one end of the three-way valve 3 connected with the pressure stabilizing tank 9 is obliquely arranged, so that the influence on the flow velocity of entering methanol is small when cooled gas enters, the cooled gas and the methanol gas can be fully mixed, the subsequent condensation efficiency is improved, the oblique end and the gas inlet direction of the condensing tower 1 are arranged in an obtuse angle, and negative pressure can be formed at one end connected with the pressure stabilizing tank 9 in the flowing process of the methanol.
According to the technical scheme, during the use, the gaseous condensation that gets into condensing tower 1 that contains methanol of distillation tower, in the condensation process, take out the gas after the cooling of a part of condensing tower 1 bottom, after surge tank 9 is stable, with the gaseous mixture of methanol that will get into, the gaseous mixture after the gaseous and cooling that contains methanol of distillation tower, can be very fast cool down methanol, make its quick condensation, improve condensing efficiency, and simultaneously, condensing tower 1's cooling part is cut apart into two parts by baffle 5, the coolant liquid gets into from the middle, both ends come out, therefore condensing tower 1 initial cryogenic zone who gets into the coolant liquid is longer, condensing efficiency is higher.
Other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. This application is intended to cover any variations, uses, or adaptations of the utility model following, in general, the principles of the application and including such departures from the present disclosure as come within known or customary practice within the art to which the utility model pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope of the disclosure being indicated by the following claims.
It will be understood that the present application is not limited to the precise arrangements described above and shown in the drawings and that various modifications and changes may be made without departing from the scope thereof. The above-described embodiments of the present application do not limit the scope of the present application.
Claims (7)
1. A recovery methanol device for distillation, comprising a condensation tower (1), characterized in that: a partition plate (5) is arranged in the condensation tower (1), the condensation tower (1) is divided into a first condensation area and a second condensation area by the partition plate (5), a condensate liquid inlet (6) is arranged on one side of the first condensation area and one side of the second condensation area, the two condensate liquid inlets (6) are respectively positioned on two sides close to the partition plate (5), a condensate liquid outlet (2) is arranged on the other side of the first condensation area and the other side of the second condensation area, the two condensate liquid outlets (2) are respectively positioned on two sides far away from the partition plate (5), a gas outlet is arranged on one side of the bottom of the condensation tower (1), one end of the gas outlet is connected with a pressure stabilizing tank (9) and a pressure stabilizing valve (7), a pressure stabilizing mechanism (8) is arranged between the gas outlet and the pressure stabilizing tank (9), and the gas outlet end of the pressure stabilizing tank (9) is connected with the gas inlet end of the condensation tower (1), and an airflow meter (4) is arranged at the air inlet end of the condensing tower (1).
2. The methanol recovery device applied to distillation as claimed in claim 1, wherein the pressure stabilizing mechanism comprises a booster pump connected between the air outlet and the pressure stabilizing tank (9), and a through air pipe is connected in parallel to the booster pump and provided with an electromagnetic valve.
3. The methanol recovery device applied in distillation according to claim 1, wherein the outlet end of the surge tank (9) is connected to the inlet end of the condensing tower (1) through a three-way valve (3), and the end of the three-way valve (3) connected to the surge tank (9) is arranged obliquely and forms an obtuse angle with the inlet direction of the condensing tower (1).
4. The methanol recovery device applied to distillation as claimed in claim 1, wherein a cooling coil is arranged outside the surge tank (9), and the cooling coil is connected to the condensate outlet (2).
5. A plant for methanol recovery in distillation applications as claimed in claim 1, characterized in that said surge tank (9) and said condensation column (1) are connected by means of insulated pipes before.
6. A device for methanol recovery in distillation as claimed in claim 1, wherein said condensation column (1) is a shell and tube condenser.
7. A device for methanol recovery in distillation applications according to claim 1, characterized in that a drying tank is provided between the surge tank (9) and the condensation column (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227622.8U CN216745530U (en) | 2022-01-27 | 2022-01-27 | Methanol recovery device applied to distillation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220227622.8U CN216745530U (en) | 2022-01-27 | 2022-01-27 | Methanol recovery device applied to distillation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216745530U true CN216745530U (en) | 2022-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220227622.8U Active CN216745530U (en) | 2022-01-27 | 2022-01-27 | Methanol recovery device applied to distillation |
Country Status (1)
| Country | Link |
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| CN (1) | CN216745530U (en) |
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- 2022-01-27 CN CN202220227622.8U patent/CN216745530U/en active Active
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