Ethanol recovery equipment

Abstract

The utility model relates to the technical field of chemical equipment, and provides ethanol recovery equipment which comprises a supporting table and a recovery tank, a liquid discharge pipe is arranged at the bottom of the recovery tank, and an exhaust pipe is arranged at the upper end of the recovery tank; an air inlet unit is arranged on the liquid discharge pipe and comprises a connecting pipe, a buffer cover and an air inlet pipe; the buffer cover is arranged outside the liquid discharge pipe, a buffer cavity is formed between the buffer cover and the outer wall of the liquid discharge pipe, the buffer cavity communicates with the connecting pipe, and the connecting pipe is arranged in the tangential direction of the periphery of the buffer cover; two air inlet pipes are symmetrically arranged on the outer portion of the liquid discharging pipe in the circumferential direction of the liquid discharging pipe, and the air inlet pipes communicate with the buffering cavity and the liquid discharging pipe. According to the utility model, the inlet ethanol steam is buffered, and the stability of ethanol recovery is ensured.

Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and in particular to an ethanol recovery device. Background Technology

[0002] Ethanol is a volatile, colorless, and transparent liquid at room temperature and pressure. Ethanol is miscible with water in any proportion. In the production process, in order to recover ethanol, steam needs to be introduced into an ethanol recovery device for condensation and recovery. Patent publication number CN219662914U discloses an ethanol recovery tank, which includes a generating tank and a recovery tank on one side of the generating tank. A spiral tube is installed between the generating tank and the recovery tank. The generating tank and the recovery tank are respectively connected to the two ends of the spiral tube by connecting pipes. A condensing tube is fixedly sleeved on the outer wall of the spiral tube. The condensing tube is connected to a cooling mechanism. A temperature sensor is fixedly installed on the inner wall of the spiral tube.

[0003] In existing technologies, ethanol vapor enters the recovery equipment for recovery. After being condensed by the condenser mechanism, the ethanol vapor is liquefied and recovered, while the remaining gas is discharged. However, when the ethanol vapor enters the ethanol recovery equipment, the flow rate is too fast, which easily leads to incomplete liquefaction of ethanol. At the same time, the direct entry of ethanol vapor into the recovery equipment impacts the internal airflow, causing overall airflow disturbance within the recovery equipment and affecting the ethanol recovery effect. Utility Model Content

[0004] This invention provides an ethanol recovery device to solve the problems mentioned in the background art.

[0005] In view of this, the present invention aims to provide an ethanol recovery device. In the present invention, the ethanol recovery device includes a support platform and a recovery tank disposed on the support platform. A condensation mechanism is provided inside the recovery tank, and a drain pipe is provided at the bottom of the recovery tank.

[0006] An air intake unit is provided on the drain pipe, and an exhaust pipe is provided at the upper end of the recovery tank. The air intake unit includes a connecting pipe, a buffer cover, and an air intake pipe. The connecting pipe is connected to the ethanol generator for transporting ethanol vapor. The buffer cover is located outside the drain pipe, and a buffer cavity is formed between the buffer cover and the outer wall of the drain pipe. The buffer cavity is connected to the connecting pipe, and the connecting pipe is arranged along the tangent direction of the periphery of the buffer cover. Two air intake pipes are symmetrically arranged along the tangent direction of the periphery of the drain pipe, and the air intake pipes connect the buffer cavity and the drain pipe.

[0007] This utility model discloses an ethanol recovery device that combines the ethanol vapor inlet and outlet pipes, and uses a buffer cover and inlet pipe to perform multiple buffering of the ethanol vapor inlet, reducing the flow rate of ethanol vapor when entering the recovery tank, ensuring the stability of ethanol recovery in the recovery tank. The tangential air inlet method is used to avoid airflow turbulence after air inlet, ensuring the stability of the gas field in the recovery tank during condensation, and avoiding impact on the inside of the recovery tank, thus ensuring the stability of ethanol recovery.

[0008] Furthermore, a valve body is provided at the bottom of the drain pipe.

[0009] By installing a valve body to seal the drain pipe, steam is prevented from being discharged from the drain pipe during intake, and the liquefied ethanol is temporarily stored at the bottom of the drain pipe.

[0010] Furthermore, a buffer plate is provided inside the recycling tank, and an exhaust channel is formed between the buffer plate and the inner top wall of the recycling tank, and the exhaust channel is connected to the exhaust pipe.

[0011] The buffer plate prevents ethanol vapor from being discharged directly from the exhaust pipe without cooling when it enters the recovery tank, thus increasing the residence time of the vapor in the recovery tank.

[0012] Furthermore, a spiral plate is provided inside the drain pipe. The spiral plate is fixed on the inner wall of the drain pipe. The spiral plate forms two mutually isolated air intake channels in the drain pipe. The two air intake channels are respectively connected to the two air intake pipes, and the air intake channels are connected to the inside of the recovery tank.

[0013] By setting up spiral plates and air intake channels, the intake air of ethanol vapor is further buffered and transported to ensure the stability of the vapor intake.

[0014] Furthermore, a baffle plate is provided inside the recycling tank.

[0015] The baffle plate is designed to guide the liquefied ethanol in the recovery tank and direct it into the drain pipe for discharge.

[0016] Furthermore, the condensation mechanism includes an inlet circulation pipe, a spiral condenser pipe, and an outlet circulation pipe, which are connected in sequence. The spiral condenser pipe is disposed inside the recovery tank. The inlet circulation pipe is inserted into the outlet pipe from the bottom of the outlet pipe and passes through the spiral plate to communicate with the spiral condenser pipe.

[0017] By incorporating an inlet circulation pipe, a spiral condenser pipe, and an outlet circulation pipe, ethanol vapor in both the drain pipe and the recovery tank can be cooled and recovered, resulting in high recovery efficiency.

[0018] Other features and advantages of this invention will be described in detail in the following detailed description section. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 This is a structural schematic diagram of one embodiment of the present invention;

[0021] Figure 2 This is a perspective view of one embodiment of the present invention;

[0022] Figure 3 This is a schematic diagram of the connection of the air intake pipe in one embodiment of the present invention;

[0023] Figure 4 This is a schematic diagram showing the connection between the spiral plate and the liquid inlet circulation pipe in one embodiment of the present invention.

[0024] Explanation of reference numerals in the attached figures:

[0025] 1. Support platform; 2. Recovery tank; 3. Drain pipe; 4. Exhaust pipe; 5. Connecting pipe; 6. Buffer cover; 7. Air inlet pipe; 8. Buffer plate; 9. Spiral plate; 10. Guide plate; 11. Liquid inlet circulation pipe; 12. Spiral condenser pipe; 13. Liquid outlet circulation pipe. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of this utility model.

[0027] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0028] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this utility model are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate for the embodiments of the utility model described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or device that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or devices. "Fixed" or "fixed connection" generally refers to common mechanical connection methods, such as threaded connections, welding, or bonding.

[0029] In existing technologies, ethanol vapor enters the recovery equipment for recovery. After being condensed by the condenser mechanism, the ethanol vapor is liquefied and recovered, while the remaining gas is discharged. However, when the ethanol vapor enters the ethanol recovery equipment, the flow rate is too fast, which easily leads to incomplete liquefaction of ethanol. At the same time, the direct entry of ethanol vapor into the recovery equipment impacts the internal airflow, causing overall airflow disturbance within the recovery equipment and affecting the ethanol recovery effect.

[0030] This utility model provides an ethanol recovery device, such as... Figure 1 and Figure 2 As shown, in this embodiment, the ethanol recovery equipment includes a support platform 1 and a recovery tank 2. The recovery tank 2 is installed on the support platform 1 and supported by the support platform 1. A condensation mechanism is provided inside the recovery tank 2 to cool the incoming ethanol vapor. A drain pipe 3 is provided at the bottom of the recovery tank 2 to allow liquid ethanol to be discharged from the bottom of the recovery tank 2.

[0031] In this embodiment, an air intake unit is provided on the drain pipe 3 for the intake of ethanol vapor, and an exhaust pipe 4 is provided at the upper end of the recovery tank 2 for the discharge of condensed gas. The air intake unit includes a connecting pipe 5, a buffer cover 6, and an air intake pipe 7. The connecting pipe 5 is connected to the ethanol generating tank and is used to receive the ethanol vapor sent from the ethanol generating tank and transport the ethanol vapor to the interior of the buffer cover 6. The buffer cover 6 is located outside the drain pipe 3, and a sealed buffer cavity is formed between the buffer cover 6 and the outer wall of the drain pipe 3. The buffer cavity is connected to the connecting pipe 5, and the ethanol vapor transported by the connecting pipe 5 is transported into the buffer cavity. The high-speed flowing ethanol vapor enters the buffer cavity for slow flow. The connecting pipe 5 is arranged tangentially along the periphery of the buffer cover 6, so that when the ethanol vapor enters the buffer cavity, a stable swirling flow is formed in the buffer cavity, avoiding direct impact on the outer wall of the drain pipe 3 and causing steam flow turbulence. Figure 3As shown, two air inlet pipes 7 are symmetrically arranged along the circumference and tangential direction of the outer part of the drain pipe 3. The air inlet pipes 7 connect the buffer chamber and the drain pipe 3, so that the ethanol vapor in the buffer chamber enters the drain pipe 3 from the air inlet pipe 7, and then rises from the drain pipe 3 into the recovery tank 2. With this arrangement, the gas field stability can be ensured when the ethanol vapor enters the drain pipe 3, and the impact on the drain pipe can be avoided.

[0032] This invention combines the ethanol vapor inlet and outlet pipe 3 with the buffer cover 6 and inlet pipe 7 to perform multiple buffering of the ethanol vapor inlet, reducing the flow rate of ethanol vapor when entering the recovery tank 2, ensuring the stability of ethanol recovery in the recovery tank 2. The air is introduced in a tangential manner to avoid airflow turbulence after air intake, ensuring the stability of the gas field in the recovery tank 2 during condensation, and avoiding impact on the inside of the recovery tank 2, thus ensuring the stability of ethanol recovery.

[0033] A valve body is provided at the bottom of the drain pipe 3, which can open and close the drain pipe 3. The valve body is set to seal the drain pipe 3 during condensation to prevent steam from being discharged from the drain pipe 3 when it is introduced. When the steam is condensed and recovered, the liquefied ethanol is temporarily stored at the bottom of the drain pipe 3. When the valve body is opened to take out the ethanol, the steam discharge is stopped.

[0034] To prevent insufficient ethanol vapor from being discharged directly from the exhaust pipe 4 before it fully condenses upon entering the recovery tank 2, resulting in incomplete recovery, a buffer plate 8 is installed inside the recovery tank 2. The buffer plate 8 is horizontally positioned inside the recovery tank 2, with both ends fixed to the inner wall of the recovery tank 2. The buffer plate 8 is located above the drain pipe 3, and when the ethanol vapor enters the recovery tank 2, it moves upward and impacts the buffer plate 8. An exhaust channel is formed between the buffer plate 8 and the inner top wall of the recovery tank 2, and the exhaust channel is connected to the exhaust pipe 4. By installing the buffer plate 8, the residence time of the vapor in the recovery tank 2 can be increased, ensuring sufficient condensation of the ethanol vapor. The exhaust pipe 4 can be directly connected to the exhaust mechanism, or a circulation pipeline can be installed to re-enter the discharged gas into the recovery tank 2 for secondary condensation.

[0035] To further ensure the stability of ethanol vapor upon entry, such as Figure 4 As shown, a spiral plate 9 is installed inside the drain pipe 3, and the spiral plate 9 is spirally installed on the inner wall of the drain pipe 3. The spiral plate 9 forms two mutually isolated air intake channels in the drain pipe 3. The two air intake channels are respectively connected to two air intake pipes 7, and the air intake channels are connected to the inside of the recovery tank 2. Through the arrangement of the spiral plate 9 and the air intake channels, the steam flows in a spiral shape when it enters, further buffering the intake of ethanol vapor and ensuring the stability of the steam intake.

[0036] In addition, during the discharge process, the ethanol condensed in the recovery tank 2 flows downward along the spiral plate 9, which can fully contact the incoming ethanol vapor during the flow and condense the incoming vapor. The incoming vapor and the discharged ethanol liquid share the same channel.

[0037] In order to guide the ethanol recovered in recovery tank 2 into the drain pipe 3 for discharge; such as Figure 2 As shown, a guide plate 10 is provided inside the recovery tank 2, and the guide plate 10 is inclined and positioned in the return pipe for guidance.

[0038] Regarding the condensation mechanism, it is configured as an inlet circulation pipe 11, a spiral condenser pipe 12, and an outlet circulation pipe 13, which are connected sequentially. The inlet circulation pipe 11 and the outlet circulation pipe 13 are connected through a circulation pump system to achieve coolant circulation and simultaneously ensure that the input cooling medium remains at a low temperature. The spiral condenser pipe 12 is spirally arranged inside the recovery tank 2 to ensure sufficient contact area with ethanol vapor. The inlet circulation pipe 11 is inserted into the drain pipe 3 from the bottom to cool the liquid. The liquid inlet circulation pipe 11 passes through the spiral plate 9 and connects with the spiral condenser 12, allowing the coolant to enter the spiral condenser 12. The liquid outlet circulation pipe 13 is located at the top of the recovery tank 2 and connected to the spiral condenser 12, allowing the coolant to be discharged. Through the arrangement of the liquid inlet circulation pipe 11 and the spiral condenser 12, not only can ethanol vapor be condensed and recovered in the recovery tank 2, but ethanol can also be recovered in the drain pipe 3 when the vapor enters. In addition, with the arrangement of the spiral plate 9, the ethanol vapor can fully contact the liquid inlet circulation pipe 11 for heat exchange when it enters, resulting in high recovery efficiency.

[0039] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An ethanol recovery device, characterized in that, It includes a support platform (1) and a recovery tank (2) disposed on the support platform (1). The recovery tank (2) is equipped with a condensation mechanism and a drain pipe (3) is disposed at the bottom of the recovery tank (2). An air intake unit is provided on the drain pipe (3), and an exhaust pipe (4) is provided at the upper end of the recovery tank (2); the air intake unit includes a connecting pipe (5), a buffer cover (6), and an air intake pipe (7); the connecting pipe (5) is connected to the ethanol generator for transporting ethanol vapor, the buffer cover (6) is located outside the drain pipe (3), and a buffer cavity is formed between the buffer cover (6) and the outer wall of the drain pipe (3), the buffer cavity is connected to the connecting pipe (5), and the connecting pipe (5) is arranged along the tangent direction of the periphery of the buffer cover (6); two air intake pipes (7) are symmetrically arranged along the periphery and tangent direction of the drain pipe (3), and the air intake pipes (7) are connected to the buffer cavity and the drain pipe (3).

2. The ethanol recovery equipment according to claim 1, characterized in that, A valve body is provided at the bottom of the drain pipe (3).

3. The ethanol recovery equipment according to claim 1, characterized in that, The recycling tank (2) is equipped with a buffer plate (8) inside, and an exhaust channel is formed between the buffer plate (8) and the inner top wall of the recycling tank (2), and the exhaust channel is connected to the exhaust pipe (4).

4. The ethanol recovery equipment according to any one of claims 1-3, characterized in that, The drain pipe (3) is provided with a spiral plate (9) inside. The spiral plate (9) is fixed on the inner wall of the drain pipe (3). The spiral plate (9) forms two mutually isolated air intake channels in the drain pipe (3). The two air intake channels are respectively connected to the two air intake pipes (7), and the air intake channels are connected to the interior of the recovery tank (2).

5. The ethanol recovery equipment according to claim 4, characterized in that, The recycling tank (2) is equipped with a baffle plate (10).

6. The ethanol recovery equipment according to claim 4, characterized in that, The condensation mechanism includes an inlet circulation pipe (11), a spiral condenser pipe (12), and an outlet circulation pipe (13). The inlet circulation pipe (11), the spiral condenser pipe (12), and the outlet circulation pipe (13) are connected in sequence. The spiral condenser pipe (12) is located inside the recovery tank (2). The inlet circulation pipe (11) is inserted into the drain pipe (3) from the bottom of the drain pipe (3). The inlet circulation pipe (11) passes through the spiral plate (9) and communicates with the spiral condenser pipe (12).

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