Single column mvr alcohol distillation equipment

Abstract

The application discloses a single-tower MVR alcohol distillation equipment and belongs to the technical field of alcohol distillation. The single-tower MVR alcohol distillation equipment comprises a distillation tower mechanism, a steam hot-pressing mechanism is arranged in the distillation tower mechanism, two auxiliary heating mechanisms are arranged at the bottom of the inner wall of the distillation tower mechanism, a uniform distribution mechanism is installed at the top of the distillation tower mechanism, a raw liquid temporary storage mechanism is installed on one side of the distillation tower mechanism, a plurality of supporting rods are fixedly connected to the top of the raw liquid temporary storage mechanism, a condensation mechanism is fixedly connected to the top of the supporting rods, a raw liquid extraction assembly is installed between the bottom side of the condensation mechanism and the raw liquid temporary storage mechanism, and liquid adding openings are installed on the two sides of the front end of the top of the raw liquid temporary storage mechanism. The condensation mechanism is designed, the heat exchange effect is improved through the plurality of condensation pipes, and the further utilization of alcohol steam heat is realized.

Description

Technical Field

[0001] This invention belongs to the field of alcohol distillation technology, specifically relating to a single-tower MVR alcohol distillation device. Background Technology

[0002] Single-tower alcohol distillation refers to a process that completes alcohol separation and purification using only a single distillation tower. It is commonly used in small- to medium-sized alcohol production or specific scenarios. Its principle is based on the difference in boiling points between alcohol and water. Through heating, evaporation, and condensation reflux, alcohol is separated and purified from the fermentation broth. The fermentation broth enters from the middle or upper part of the distillation tower. The bottom of the tower is heated to make the liquid boil, and the alcohol vapor rises. Water and high-boiling-point impurities remain at the bottom of the tower or are discharged. The condensed liquid at the top of the tower is partially refluxed to increase the alcohol concentration. Finally, the alcohol product is obtained at the top of the tower, and the waste liquid is discharged at the bottom. The principle of MVR technology is to compress the secondary steam generated during the evaporation process through a steam compressor to increase its pressure and temperature, and then return it to the evaporator as a heat source to heat the original solution. This fully utilizes the latent heat of the secondary steam to achieve circulating heating, replacing fresh steam and achieving energy saving.

[0003] For equipment used in MVR alcohol distillation, existing equipment cannot operate continuously. As alcohol evaporates and the original liquid is replenished intermittently, the internal liquid temperature drops, which means it takes a certain amount of time to reach the specified temperature. During this time, less alcohol vapor is generated. At the same time, existing equipment does not fully utilize the heat of the alcohol vapor. After the alcohol vapor is heated and pressurized to release heat into the original liquid, the vapor still contains heat that is not utilized. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a single-tower MVR alcohol distillation device.

[0005] The technical solution adopted to solve the above technical problems is: to provide a single-tower MVR alcohol distillation device, including a distillation tower mechanism, wherein a steam hot pressing mechanism is provided inside the distillation tower mechanism, and two auxiliary heating mechanisms are provided at the bottom of the inner wall of the distillation tower mechanism; The top of the distillation column is equipped with a distribution mechanism, and a raw liquid storage mechanism is installed on one side of the distillation column. The top of the raw liquid storage mechanism is fixedly connected with multiple support rods. A condensation mechanism is fixedly connected to the top of the multiple support rods. A raw liquid extraction component is installed between the bottom side of the condensation mechanism and the raw liquid temporary storage mechanism. Both sides of the top front end of the raw liquid temporary storage mechanism are equipped with liquid inlets.

[0006] Furthermore, the distillation column mechanism includes a distillation column body, with a first temperature sensor and a first liquid level sensor respectively installed at the bottom and top of the inner wall of the distillation column body, and a water outlet fixedly connected to the bottom of the outer wall of the distillation column body.

[0007] The above technical solution allows the temperature and level changes of the solution inside the distillation tower to be displayed by the first temperature sensor and the first liquid level sensor, thereby enabling the control of alcohol evaporation and the addition of preheated raw liquid to ensure the continuity of the entire equipment.

[0008] Furthermore, the steam hot pressing mechanism includes two sealing and fixing sleeves respectively installed on both sides of the distillation column mechanism. Multiple sets of U-shaped zigzag tube assemblies are fixedly connected between the two sealing and fixing sleeves. A collection pipe is fixedly connected to the bottom of each set of U-shaped zigzag tube assemblies. A sealing cap is fixedly connected to one end of each collection pipe. A fixing plate is fixedly connected between the multiple sets of U-shaped zigzag tube assemblies and the distillation column mechanism. An output pipe is fixedly connected to the other side of one of the sealing and fixing sleeves. A compressor fan is installed at the other end of the output pipe. An input pipe is fixedly connected between the input end of the compressor fan and the distillation column mechanism.

[0009] Through the above technical solution, after being heated by the auxiliary heating mechanism, the alcohol in the original liquid gradually turns into a gaseous state and moves upward. At the same time, the compressor fan is started to draw in the alcohol vapor through the input pipe and pressurize it to increase its temperature. Then, it is output through the output pipe and diverted through multiple sets of U-shaped zigzag tubes. The high-temperature and high-pressure alcohol vapor begins to conduct heat to the liquid inside the main body of the distillation column through the U-shaped zigzag tubes, realizing auxiliary heating. At this time, the heating power of the auxiliary heating mechanism can be turned off or reduced, as long as the temperature is kept within the set range. The zigzag U-shaped zigzag tubes can effectively reduce the flow rate of the alcohol vapor. At the same time, the zigzag structure can also make the U-shaped zigzag tubes longer, which can increase the residence time of the high-temperature alcohol vapor in the U-shaped zigzag tubes, thereby allowing the liquid inside the main body of the distillation column to absorb more heat and make full use of the heat of the alcohol vapor. At the same time, due to the unstable temperature in the early stage, a very small amount of liquid will be generated inside the U-shaped zigzag tubes. After being collected through multiple collection pipes, it can be sprayed out by opening the sealing cap, avoiding the accumulation of liquid inside the U-shaped zigzag tubes.

[0010] Furthermore, the auxiliary heating mechanism includes an electrically connected plate, and a distribution plate is installed between the electrically connected plate and the inner wall of the distillation column mechanism. Multiple heating resistance rods are fixedly connected to the bottom of the distribution plate.

[0011] With the above technical solution, at the beginning, two auxiliary heating mechanisms are activated to heat the original liquid through multiple heating resistance rods. After the alcohol vapor is pressurized, the auxiliary heating mechanisms can still play an auxiliary role to avoid large temperature changes.

[0012] Furthermore, the equalization mechanism includes a top shell fixedly connected to the top of the distillation column mechanism, a conical flow divider shell fixedly connected to the center of the inner wall of the top shell, an equalization perforated plate fixedly connected to the bottom of the inner wall of the top shell, and a pipe retainer fixedly connected to the outer wall of the top shell.

[0013] Through the above technical solution, the raw liquid is first divided by a conical distribution shell, and then flows evenly onto a perforated plate through the through holes on the conical distribution shell. Finally, it drips evenly onto the bottom of the main body of the distillation column through the perforated plate. This can effectively improve the uniformity of the raw liquid distribution. In the high-temperature environment inside the main body of the distillation column, the raw liquid can be preheated during the dripping process, avoiding large changes in the overall solution temperature inside the distillation column when adding raw liquid.

[0014] Furthermore, the conical flow divider shell has multiple circular through holes with uneven density distribution, while the through hole density is the same on the evenly distributed multi-hole plate.

[0015] Through the above technical solution, the density of the circular through holes on the conical distribution shell gradually increases from the center to the periphery, thereby ensuring the uniform distribution of the original liquid.

[0016] Furthermore, the raw liquid temporary storage mechanism includes a raw liquid storage chamber and a preheating storage chamber. The inner walls of both the raw liquid storage chamber and the preheating storage chamber are equipped with a second temperature sensor and a second liquid level sensor. A liquid pump body is installed at the rear end of one side of the top of the preheating storage chamber. A transmission pipe is installed between the output end of the liquid pump body and the top center of the equalization mechanism.

[0017] With the above technical solution, when starting use, a fixed amount of raw liquid is added through the liquid inlet at the top of the preheating storage tank, and the liquid pump is started to extract it. The raw liquid is then transferred to the equalization mechanism through the transmission pipeline. The added fixed amount of solution is close to the maximum capacity inside the main body of the distillation tower. The temperature and liquid level changes of the solution inside the raw liquid storage tank and the preheating storage tank can be detected by two second temperature sensors and a second liquid level sensor.

[0018] Furthermore, the condensation mechanism includes a housing, with sealing perforated plates fixedly connected to both sides of the inner wall of the housing, and multiple condensation tubes passing through between the two sealing perforated plates. An exhaust port is fixedly connected to one end of the top of the housing, and a collection sleeve is fixedly connected to the other end of the housing. An overflow pipe is fixedly connected to the top of one side of the front end face of the housing.

[0019] Through the above technical solution, alcohol vapor enters multiple condenser tubes after passing through the U-shaped zigzag tube assembly. At the same time, the liquid filling port at the top of the liquid storage chamber continuously adds liquid, and the liquid extraction component starts to extract. The liquid slowly accumulates in the housing of the mechanism and absorbs the heat of the alcohol vapor inside the condenser tubes. The alcohol vapor is liquefied in the condenser tubes, and the liquid absorbs heat and rises in temperature inside the housing of the mechanism. Finally, it flows into the interior of the preheating storage chamber through the overflow pipe.

[0020] Furthermore, the multiple condenser tubes and multiple sets of U-shaped zigzag tubes correspond one-to-one and are connected by a tube sleeve for sealing.

[0021] The above technical solution ensures that the alcohol vapor in the U-shaped zigzag tube assembly can completely enter the condenser tubes, greatly increasing the contact area with the cooling liquid in a large number of condenser tubes, thus achieving further cooling and condensation treatment.

[0022] The beneficial effects of the present invention are as follows: (1) By designing a condensation mechanism, the alcohol vapor enters multiple condenser tubes after passing through the U-shaped zigzag tube group. At the same time, the raw liquid slowly accumulates in the shell of the mechanism and absorbs the heat of the alcohol vapor inside the condenser tube. The alcohol vapor is liquefied in the condenser tube. At the same time, the raw liquid absorbs heat and rises in temperature inside the shell of the mechanism. Finally, it flows into the preheating storage chamber through the overflow pipe. The direction of movement of the raw liquid is opposite to that of the alcohol vapor, thereby improving the heat exchange effect and realizing the further utilization of the heat of the alcohol vapor; (2) By designing a distribution mechanism, the preheated raw liquid is evenly dripped through the distribution perforated plate. In the high-temperature environment inside the main body of the distillation tower, the raw liquid can be further preheated during the dripping process, avoiding a large change in the overall solution temperature inside the distillation tower mechanism when adding raw liquid, and ensuring the continuous operation of the equipment. Attached Figure Description

[0023] Figure 1 This is a three-dimensional structural schematic diagram of the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the present invention; Figure 3 This is a longitudinal cross-sectional structural diagram of the distillation tower mechanism and the equalization mechanism of the present invention; Figure 4 This is a three-dimensional cross-sectional structural diagram of the distillation tower mechanism and the equalization mechanism of the present invention; Figure 5 This is a partial structural diagram of the steam hot pressing mechanism of the present invention; Figure 6 This is a schematic diagram of the collection pipe structure of the present invention; Figure 7 This is a schematic diagram of the auxiliary heating mechanism of the present invention; Figure 8 This is a schematic diagram of the equalization mechanism structure of the present invention; Figure 9 This is a three-dimensional cross-sectional structural diagram of the original liquid storage mechanism and the condensation mechanism of the present invention.

[0024] Reference numerals: 1. Distillation column mechanism; 101. Distillation column body; 102. First temperature sensor; 103. First liquid level sensor; 104. Water outlet; 2. Steam hot pressing mechanism; 201. Sealing and fixing sleeve; 202. U-shaped zigzag tube assembly; 203. Collection pipe; 204. Sealing cover; 205. Fixing plate; 206. Output pipe; 207. Compressor fan; 208. Input pipe; 3. Auxiliary heating mechanism; 301. Power connection plate; 302. Distribution plate; 303. Heating resistance rod; 4. Equalizing mechanism; 401. Top 402. Conical diverter shell; 403. Divider plate; 404. Pipe holder; 5. Raw material storage mechanism; 501. Raw material storage chamber; 502. Preheating storage chamber; 503. Second temperature sensor; 504. Second liquid level sensor; 505. Pump body; 506. Transmission pipe; 6. Support rod; 7. Condensation mechanism; 701. Mechanism housing; 702. Condenser tube; 703. Sealing perforated plate; 704. Exhaust port; 705. Collection shell; 706. Overflow pipe; 8. Raw material extraction assembly; 9. Liquid inlet. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0026] like Figures 1-3 As shown, a single-tower MVR alcohol distillation device according to this embodiment includes a distillation tower mechanism 1, which includes a distillation tower body 101. A first temperature sensor 102 and a first liquid level sensor 103 are respectively installed at the bottom and top of the inner wall of the distillation tower body 101. An outlet 104 is fixedly connected to the bottom of the outer wall of the distillation tower body 101. The temperature and liquid level changes of the solution inside the distillation tower body 101 can be displayed by the first temperature sensor 102 and the first liquid level sensor 103, thereby enabling control of alcohol evaporation and the addition of preheated raw liquid at any time to ensure the continuity of the entire device.

[0027] like Figures 1-6As shown, a steam hot-pressing mechanism 2 is installed inside the distillation column mechanism 1. The steam hot-pressing mechanism 2 includes two sealing and fixing sleeves 201 respectively installed on both sides of the distillation column mechanism 1. Multiple sets of U-shaped zigzag tube groups 202 are fixedly connected between the two sealing and fixing sleeves 201. The bottom of each set of U-shaped zigzag tube groups 202 is fixedly connected to a collection pipe 203. One end of each collection pipe 203 is fixedly connected to a sealing cap 204. A fixing plate 205 is fixedly connected between the multiple sets of U-shaped zigzag tube groups 202 and the distillation column mechanism 1. An output pipe 206 is fixedly connected to the other side of one of the sealing and fixing sleeves 201. A compressor 207 is installed at the other end of the output pipe 206. An input pipe 208 is fixedly connected between the input end of the compressor 207 and the distillation column mechanism 1. After being heated by the auxiliary heating mechanism 3, the alcohol in the original liquid gradually turns into a gaseous state and moves upward. At the same time, the compressor 207 is started to draw in the alcohol vapor through the input pipe 208 and pressurize it to a certain temperature. The temperature is increased, and then the alcohol vapor is output through the output pipe 206. It is then diverted through multiple sets of U-shaped zigzag tube groups 202. The high-temperature and high-pressure alcohol vapor begins to conduct heat to the liquid inside the distillation column body 101 through the U-shaped zigzag tube groups 202, realizing auxiliary heating. At this time, the heating power of the auxiliary heating mechanism 3 can be turned off or reduced, as long as the temperature is kept within the set range. The zigzag U-shaped zigzag tube group 202 can effectively reduce the flow rate of alcohol vapor. At the same time, the zigzag structure can also make the length of the U-shaped zigzag tube group 202 longer, which can increase the residence time of high-temperature alcohol vapor in the U-shaped zigzag tube group 202. This allows the liquid inside the distillation column body 101 to absorb more heat and make full use of the heat of alcohol vapor. At the same time, due to the unstable temperature in the early stage, a very small amount of liquid will be generated inside the U-shaped zigzag tube group 202. After being collected through multiple collection pipes 203, it can be sprayed out by opening the sealing cap 204, thus preventing the liquid from accumulating inside the U-shaped zigzag tube group 202.

[0028] like Figures 1-7 As shown, two auxiliary heating mechanisms 3 are provided at the bottom of the inner wall of the distillation column mechanism 1. The auxiliary heating mechanism 3 includes an electric connecting plate 301. A distribution plate 302 is installed between the electric connecting plate 301 and the inner wall of the distillation column mechanism 1. Multiple heating resistance rods 303 are fixedly connected to the bottom of the distribution plate 302. At the beginning, the two auxiliary heating mechanisms 3 are started, and the original liquid is heated by the multiple heating resistance rods 303. After the alcohol vapor is pressurized, the auxiliary heating mechanism 3 can still play an auxiliary role to avoid large temperature changes.

[0029] like Figures 1-8As shown, a distribution mechanism 4 is installed on the top of the distillation column 1. The distribution mechanism 4 includes a top shell 401 fixedly connected to the top of the distillation column 1. A conical flow divider shell 402 is fixedly connected to the center of the inner wall of the top shell 401. A perforated plate 403 is fixedly connected to the bottom of the inner wall of the top shell 401. A pipe holder 404 is fixedly connected to the outer wall of the top shell 401. The raw liquid is first divided by the conical flow divider shell 402 and can flow evenly onto the perforated plate 403 through the through holes on the conical flow divider shell 402. Finally, the liquid is evenly dripped onto the bottom of the distillation column body 101 through the uniform distribution perforated plate 403, which can effectively improve the uniformity of the raw liquid distribution. In the high-temperature environment inside the distillation column body 101, the raw liquid can be further preheated during the dripping process, avoiding large changes in the overall solution temperature inside the distillation column body 1 when adding raw liquid. The conical distribution shell 402 has multiple circular through holes with uneven density distribution, while the through hole density on the uniform distribution perforated plate 403 is the same. The circular through holes on the conical distribution shell 402 are distributed from the center outwards. The density of the through holes gradually increases, thus ensuring the uniform distribution of the raw liquid. A raw liquid temporary storage mechanism 5 is installed on one side of the distillation column mechanism 1. The raw liquid temporary storage mechanism 5 includes a raw liquid storage chamber 501 and a preheating storage chamber 502. A second temperature sensor 503 and a second liquid level sensor 504 are installed on the inner walls of both the raw liquid storage chamber 501 and the preheating storage chamber 502. A pump body 505 is installed at the rear end of one side of the top of the preheating storage chamber 502. A transmission pipe 506 is installed between the output end of the pump body 505 and the top center of the equalization mechanism 4. When starting to use the system, a fixed amount of raw liquid is added through the liquid inlet 9 at the top of the preheated storage chamber 502, and the liquid pump body 505 is started to extract the liquid. The raw liquid is then transferred to the equalization mechanism 4 through the transmission pipe 506. The added fixed amount of solution is close to the maximum capacity inside the distillation column body 101. The temperature and liquid level changes of the solution inside the raw liquid storage chamber 501 and the preheated storage chamber 502 can be detected by two second temperature sensors 503 and a second liquid level sensor 504. Multiple support rods 6 are fixedly connected to the top of the raw liquid temporary storage mechanism 5.

[0030] like Figures 1-9As shown, a condensing mechanism 7 is fixedly connected to the top of multiple support rods 6. The condensing mechanism 7 includes a housing 701. Sealing perforated plates 703 are fixedly connected to both sides of the inner wall of the housing 701. Multiple condensing pipes 702 pass through between two sealing perforated plates 703. An exhaust port 704 is fixedly connected to one end of the top of the housing 701, and a collection sleeve 705 is fixedly connected to the other end. An overflow pipe 706 is fixedly connected to the top of one side of the front face of the housing 701. Alcohol vapor enters the multiple condensing pipes 702 after passing through the U-shaped zigzag tube assembly 202. Simultaneously, the liquid inlet 9 at the top of the liquid storage chamber 501 continuously adds liquid, and the liquid extraction component 8 begins extraction. The liquid slowly accumulates in the housing 701. The alcohol vapor in the condenser 702 is liquefied within the condenser 702, while the liquid absorbs heat and heats up inside the housing 701. Finally, it flows into the preheating storage chamber 502 through the overflow pipe 706. Multiple condenser 702s and multiple sets of U-shaped zigzag tubes 202 correspond one-to-one and are sealed together by tube sleeves, ensuring that the alcohol vapor in the U-shaped zigzag tubes 202 can completely enter the condenser 702. The large number of condenser 702s greatly increases the contact area with the cooling liquid, achieving further cooling and condensation. A liquid extraction component 8 is installed between the bottom side of the condenser 7 and the liquid storage mechanism 5. Liquid inlets 9 are installed on both sides of the top front end of the liquid storage mechanism 5.

[0031] The working principle of this embodiment is as follows: During use, a fixed amount of raw solution is added through the liquid inlet 9 at the top of the preheating storage chamber 502, and the pump body 505 is started to extract it. The raw solution is then transferred to the equalization mechanism 4 through the transmission pipe 506. The raw solution is first divided by the conical distribution shell 402, and then flows evenly onto the equalization porous plate 403 through the through holes on the conical distribution shell 402. Finally, it drips evenly onto the bottom of the distillation column body 101 through the equalization porous plate 403. At this time, two auxiliary heating mechanisms 3 are started to heat the raw solution. The fixed amount of solution added to the preheating storage chamber 502 is close to the maximum capacity inside the distillation column body 101. After extraction, the remaining amount in the preheating storage chamber 502... A small amount of raw liquid is heated by multiple heating resistance rods 303 to keep its temperature between 78°C and 85°C, and monitored by the first temperature sensor 102. At this time, the alcohol gradually turns into a gaseous state and moves upward. Simultaneously, the compressor fan 207 is started to draw in the alcohol vapor through the input pipe 208 and pressurize it to increase its temperature. Then it is output through the output pipe 206 and split through multiple sets of U-shaped zigzag tube groups 202. The high-temperature and high-pressure alcohol vapor begins to conduct heat to the liquid inside the distillation column body 101 through the U-shaped zigzag tube groups 202 to achieve auxiliary heating. At this time, the heating power of the auxiliary heating mechanism 3 can be turned off or reduced, as long as the temperature is kept within the set range. After passing through the U-shaped zigzag tube assembly 202, the alcohol vapor enters multiple condenser tubes 702. Simultaneously, the liquid inlet 9 at the top of the liquid storage chamber 501 continuously adds liquid, and the liquid extraction component 8 begins extraction. The liquid slowly accumulates in the housing 701 and absorbs heat from the alcohol vapor inside the condenser tubes 702, causing the alcohol vapor to liquefy within the condenser tubes 702. At the same time, the liquid absorbs heat and heats up inside the housing 701. Finally, it flows into the preheating storage chamber 502 through the overflow pipe 706. The first liquid level sensor 103 detects the liquid level change inside the distillation column body 101. When it falls below the minimum set value, the pump body 505 is activated to replenish the preheated liquid. The liquid dripping through the perforated plate 403 is further heated in the high-temperature environment of the distillation column body 101, achieving continuous distillation. The liquefied alcohol and alcohol vapor are output through the collection sleeve 705, which can then be further processed.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A single-tower MVR alcohol distillation apparatus, comprising a distillation tower mechanism (1), characterized in that: The distillation tower mechanism (1) is equipped with a steam hot pressing mechanism (2). The steam hot pressing mechanism (2) includes two sealing and fixing sleeves (201) respectively installed on both sides of the distillation tower mechanism (1). Multiple sets of U-shaped zigzag tube groups (202) are fixedly connected between the two sealing and fixing sleeves (201). A collection pipe (203) is fixedly connected to the bottom of each set of U-shaped zigzag tube groups (202). A sealing cap (204) is fixedly connected to one end of each set of collection pipes (203). A fixing plate (205) is fixedly connected between the multiple sets of U-shaped zigzag tube groups (202) and the distillation tower mechanism (1). An output pipe (206) is fixedly connected to the other side of one of the sealing and fixing sleeves (201). A compressor fan (207) is installed at the other end of the output pipe (206). An input pipe (208) is fixedly connected between the input end of the compressor fan (207) and the distillation tower mechanism (1). Two auxiliary heating mechanisms (3) are provided at the bottom of the inner wall of the distillation tower mechanism (1). A distribution mechanism (4) is installed on the top of the distillation tower mechanism (1), and a raw liquid storage mechanism (5) is installed on one side of the distillation tower mechanism (1). The raw liquid storage mechanism (5) includes a raw liquid storage chamber (501) and a preheating storage chamber (502). A second temperature sensor (503) and a second liquid level sensor (504) are installed on the inner walls of the raw liquid storage chamber (501) and the preheating storage chamber (502). A pump body (505) is installed at the rear end of the top side of the preheating storage chamber (502). A transmission pipe (506) is installed between the output end of the pump body (505) and the top center of the distribution mechanism (4). A number of support rods (6) are fixedly connected to the top of the raw liquid storage mechanism (5). A condensing mechanism (7) is fixedly connected to the top of multiple support rods (6). The condensing mechanism (7) includes a mechanism housing (701). Both sides of the inner wall of the mechanism housing (701) are fixedly connected to a sealing perforated plate (703). Multiple condensing pipes (702) pass through between two sealing perforated plates (703). One end of the top of the mechanism housing (701) is fixedly connected to an exhaust port (704). The other end of the mechanism housing (701) is fixedly connected to a collection sleeve (705). The top of one side of the front end face of the mechanism housing (701) is fixedly connected to an overflow pipe (706). Multiple condensing pipes (702) and multiple sets of U-shaped zigzag pipe groups (202) correspond one-to-one and are sealed and connected by pipe sleeves. A raw liquid extraction component (8) is installed between the bottom side of the condensing mechanism (7) and the raw liquid temporary storage mechanism (5). Both sides of the top front end of the raw liquid temporary storage mechanism (5) are equipped with liquid inlets (9).

2. The single-tower MVR alcohol distillation apparatus according to claim 1, characterized in that, The distillation tower mechanism (1) includes a distillation tower body (101), a first temperature sensor (102) and a first liquid level sensor (103) are respectively installed at the bottom and top of the inner wall of the distillation tower body (101), and a water outlet (104) is fixedly connected to the bottom of the outer wall of the distillation tower body (101).

3. The single-tower MVR alcohol distillation apparatus according to claim 1, characterized in that, The auxiliary heating mechanism (3) includes an electric connecting plate (301), and a distribution plate (302) is installed between the electric connecting plate (301) and the inner wall of the distillation column mechanism (1). A plurality of heating resistance rods (303) are fixedly connected to the bottom of the distribution plate (302).

4. The single-tower MVR alcohol distillation apparatus according to claim 1, characterized in that, The equalization mechanism (4) includes a top shell (401) fixedly connected to the top of the distillation column mechanism (1), a conical diverter shell (402) fixedly connected to the center of the inner wall of the top shell (401), an equalization perforated plate (403) fixedly connected to the bottom of the inner wall of the top shell (401), and a pipe fastener (404) fixedly connected to the outer wall of the top shell (401).

5. The single-tower MVR alcohol distillation apparatus according to claim 4, characterized in that, The conical flow divider shell (402) has multiple circular through holes with uneven density distribution, while the through hole density on the evenly distributed perforated plate (403) is the same.

Images