Dilution plant for alcohol production

Abstract

This invention discloses a dilution device for alcohol production, relating to the field of alcohol dilution technology. It includes a device base with a central mounting frame fixedly installed on it. Processing tanks are fixedly installed on the central mounting frame. An inlet pipe is fixedly installed on the upper side of the device base, communicating with three sets of processing tanks. Each processing tank has a movable separator piston. A static mixer is fixedly installed on the lower side of the device base, communicating with the three sets of processing tanks. In the liquid inlet stage, the invention achieves synchronous and efficient heat exchange through the built-in cooling tank of the rapid cooling mixing mechanism and the cooling liquid jacket, avoiding localized temperature rise interference with concentration detection caused by the exothermic reaction of alcohol and water. In the processing stage, the negative pressure environment created by the upward movement of the separator pistons within the processing tanks promotes the rapid precipitation of air bubbles entrained in the liquid.

Description

Technical Field

[0001] This invention relates to the field of alcohol dilution technology, specifically to a dilution device for alcohol production. Background Technology

[0002] In alcohol production, it is often necessary to quantitatively mix high-concentration alcohol with water according to different process requirements to prepare diluted alcohol solutions of the target concentration, which are widely used in disinfectants, chemical raw materials, and food processing. Existing alcohol dilution equipment typically uses metering pumps to deliver alcohol and water in a specific ratio directly into a mixing tank, or uses ordinary pipeline mixers for a one-time mixing before outputting to subsequent storage containers. While this method achieves basic dilution, it still presents many problems in actual continuous production.

[0003] First, alcohol and water release heat when mixed, especially during the dilution of higher concentrations of alcohol, where the temperature rise in localized mixing areas is significant. If mixing is completed directly in a standard static mixing tube, the heat is not easily dissipated in time, leading to localized temperature increases in the mixture and affecting the accuracy of alcohol concentration detection, thus reducing the precision of subsequent dispensing. Second, existing static mixing devices typically only focus on the flow mixing effect of the liquid, neglecting the issue of air bubbles entrained within the mixed liquid. Because liquids easily trap air during transport, diversion, and high-speed shearing, air bubbles entering the detection or buffer container can cause liquid level fluctuations and concentration detection errors, affecting the stability of dilution quality.

[0004] Furthermore, existing dilution equipment often uses a single storage tank for concentration detection and replenishment after the mixed liquid enters the buffer container. If there is a deviation in the concentration of the mixed liquid, the entire mixture needs to be readjusted. This not only results in low adjustment efficiency, but also makes it difficult to remix evenly after adding alcohol or water locally when the total liquid volume is large. At the same time, when switching between different batches of alcohol dilution operations, liquid from the previous batch often remains in the static mixing pipes, the inner wall of the buffer tank, and the conveying channels. This residual liquid can easily interfere with the concentration of the next batch, especially when switching production to different target concentrations, where cross-residue problems are more pronounced. Existing equipment usually requires additional disassembly, cleaning, or rinsing, which is cumbersome and affects continuous production efficiency. Summary of the Invention

[0005] The purpose of this invention is to provide a dilution device for alcohol production, in order to solve the problems mentioned in the background art, such as the concentration detection of alcohol during the dilution process being greatly affected by heat and bubbles, resulting in inaccurate measurement and secondary mixing.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a dilution device for alcohol production, comprising a device base, a central mounting frame fixedly mounted on the device base, a processing tank fixedly mounted on the central mounting frame, an inlet pipe fixedly mounted on the upper side of the device base, the inlet pipe communicating with three sets of processing tanks, a separating piston movably disposed inside each processing tank, and a static mixer fixedly mounted on the lower side of the device base, the static mixer communicating with the three sets of processing tanks; A rapid cooling mixing mechanism includes coarse mixing blades, fine mixing blades, and a coolant jacket. The coarse mixing blades and fine mixing blades are arranged in an array inside the liquid inlet pipe, and a coolant jacket is provided on the outside of the liquid inlet pipe. A fine mixing regulating mechanism includes a liquid inlet, a gas guide groove, and a fixed gas guide pipe. The central mounting frame and the processing tank are both provided with liquid inlets. The upper side of the central mounting frame is connected to the processing tank through the liquid inlet. A gas guide groove is provided at the center of the separating piston. Fixed gas guide pipes are provided inside the processing tank. The separating piston and the fixed gas guide pipes abut against each other. The gas guide groove is connected to the fixed gas guide pipe.

[0007] Preferably, the rapid cooling mixing mechanism further includes an inlet mixing chamber, an inlet tank, a cooling tank, a coolant inlet pipe, and a coolant outlet pipe. The inlet tank is arrayed on the outer side of the inlet pipe. Cooling tanks are formed inside both the coarse mixing blades and the fine mixing blades. The cooling tanks are opposite to the inlet tanks. A coolant inlet pipe is provided on the lower side of the coolant jacket, and a coolant outlet pipe is provided on the upper side of the coolant jacket.

[0008] Preferably, the rapid cooling mixing mechanism further includes an annular dividing mesh frame and a flow guide groove. The annular dividing mesh frame is fixedly installed inside the coolant jacket. The annular dividing mesh frame is fixedly installed on the outside of the liquid inlet pipe. The shape of the annular dividing mesh frame is relative to the number and position of the liquid inlet groove. The annular dividing mesh frame is spirally arrayed with flow guide grooves.

[0009] Preferably, the fine mixing adjustment mechanism further includes hydraulic rods, annular supports, connecting guide rods, arc-shaped guide grooves, and exhaust pipes. Three sets of hydraulic rods are installed on the central mounting frame. An annular support is provided on the upper side of the central mounting frame. All hydraulic rods are fixedly installed on the lower side of the annular support. Three sets of connecting guide rods are fixedly installed on the lower side of the annular support. The connecting guide rods are fixedly installed on the upper side of the separating piston. The connecting guide rods are movably inserted into the upper side of the processing tank. Arc-shaped guide grooves are arrayed on the inner wall of the processing tank. The height of the arc-shaped guide grooves is greater than the width of the separating piston. The same set of exhaust pipes is fixedly installed on the upper side of the three sets of processing tanks, and the exhaust pipes are connected to the processing tanks.

[0010] Preferably, the fine mixing adjustment mechanism further includes an air supply channel, an air pipe connector, a connecting bracket, and a bottom air outlet. Each connecting guide rod has an air guide groove that communicates with the air guide groove on the separating piston. An air supply channel is provided inside the annular bracket, and the air supply channel communicates with the air guide groove. An air pipe connector is fixedly installed on one side of the annular bracket, and the air pipe connector communicates with the air supply channel. Bottom air outlets are arrayed on the lower side of the fixed air guide pipe.

[0011] Preferably, the fine mixing adjustment mechanism further includes a first fixed circular block, a venting groove, a venting core, a return spring, a blocking ring, a first blocking block, a first vent hole, a second fixed circular block, a second blocking block, a second vent hole, and a venting contact head. The first fixed circular block is fixedly installed in the venting groove on the separating piston. Venting grooves are arrayed on the first fixed circular block. A venting core is movably inserted into the first fixed circular block. A return spring is sleeved on the venting core. A blocking ring is fixedly installed on the lower side of the venting core. One end of the return spring abuts against the blocking ring, and the other end abuts against the lower side of the first fixed circular block. A first air-blocking block is fixedly installed at the center of the lower side. A first vent hole is arrayed on the air-blocking ring. A second fixed circular block is fixedly installed at the lower end of the air guide groove on the separator piston. A second air-blocking block is arrayed and fixedly installed on the upper side of the second fixed circular block. The second air-blocking block is inserted into the first vent hole. A second vent hole is opened at the center of the second fixed circular block. The first air-blocking block is inserted into the second vent hole. An air guide contact head is fixedly installed at the upper end of the fixed air guide pipe. The diameter of the upper end of the air guide contact head is smaller than the diameter of the first air-blocking block. The air guide contact head abuts against the first air-blocking block.

[0012] Preferably, the fine mixing adjustment mechanism further includes a first sealing joint and a second sealing joint. The first sealing joint is fixedly installed at the upper end of the fixed air guide pipe, and the second sealing joint is fixedly installed at the center position of the lower side of the separator piston. The shape of the opposite surface of the second sealing joint is adapted to the first sealing joint. The first sealing joint and the second sealing joint fit together, and the upper end of the air guide contact head is higher than the first sealing joint.

[0013] Preferably, the fine mixing adjustment mechanism further includes a manifold, an outlet branch pipe, a first telescopic motor, a first closed-flow piston, a concentration detector, and a liquid level sensor. The manifold is provided on the lower side of the central mounting frame. An outlet branch pipe is fixedly installed at the lower end of each of the processing tanks. All three sets of outlet branch pipes are fixedly installed on and connected to the manifold. A first telescopic motor is installed inside the lower side of the central mounting frame. A first closed-flow piston is fixedly installed on the telescopic rod of the first telescopic motor. The first closed-flow piston is inside the manifold and fits against the inner wall of the manifold. The static mixer is fixedly installed on the lower side of the manifold. A concentration detector is fixedly installed on the lower side of each outlet branch pipe. A liquid level sensor is fixedly installed on the lower side of the separating piston.

[0014] Preferably, the fine mixing adjustment mechanism further includes a second telescopic motor, a second closed-flow piston, an arc-shaped connecting plate, a triangular flow divider, an alcohol injection control valve, and a water injection control valve. The second telescopic motor is fixedly installed inside the upper end of the central mounting frame, and the second closed-flow piston is movably inserted into the upper end of the central mounting frame. Three sets of arc-shaped connecting plates are fixedly installed on the upper side of the second closed-flow piston, and a triangular flow divider is fixedly installed between the three sets of arc-shaped connecting plates. The interval between the arc-shaped connecting plates is opposite to the liquid inlet. An alcohol injection control valve is installed on one set of the processing tank, and a water injection control valve is installed on another set of the processing tank.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In the liquid feeding stage, the invention utilizes the built-in cooling tank of the rapid cooling mixing mechanism in conjunction with the coolant jacket to achieve synchronous and efficient heat exchange, avoiding localized temperature rises caused by the exothermic reaction of alcohol and water mixing, which interferes with concentration detection. In the processing stage, the negative pressure environment created in the processing tank by the upward movement of the separator piston promotes the rapid precipitation of air bubbles entrained in the liquid. This dual-pronged design effectively eliminates interference from temperature anomalies and tiny air bubbles on the concentration detector, ensuring the accuracy of data reading and the precision of subsequent mixing. 2. This invention divides the mixture into three independent processing tanks, and performs deep fine mixing by filling the bottom with inert air bubbles. Each tank can independently detect the concentration, and the whole system can perform alcohol or water replenishment operations, realizing precise secondary mixing of small batches, avoiding the difficulties and inefficiencies of traditional single large tank mixing. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure provided for an embodiment of the present invention; Figure 2 This is a schematic cross-sectional view of the processing tank provided in an embodiment of the present invention; Figure 3 This is a schematic cross-sectional view of the structure at the separator piston provided in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structural separation at the air-blocking ring provided in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure of the fixed air duct provided in an embodiment of the present invention; Figure 6 This is a schematic cross-sectional view of the manifold structure provided in an embodiment of the present invention; Figure 7 This is a structural schematic diagram of the central mounting bracket provided in an embodiment of the present invention; Figure 8 This is a schematic cross-sectional view of the structure at the central mounting frame provided in an embodiment of the present invention; Figure 9 This is a schematic diagram of the structural separation at the liquid inlet pipe provided in an embodiment of the present invention; Figure 10 This is a schematic cross-sectional view of the liquid inlet pipe provided in an embodiment of the present invention; Figure 11 Provided for embodiments of the present invention Figure 2 A magnified view of part A in the diagram; Figure 12 Provided for embodiments of the present invention Figure 5 A partially enlarged schematic diagram of B in the diagram. In the diagram: 1. Equipment base; 2. Central mounting frame; 3. Processing tank; 4. Liquid inlet pipe; 5. Separating piston; 6. Static mixer; 7. Rapid cooling mixing mechanism; 701. Inlet mixing chamber; 702. Coarse mixing blades; 703. Fine mixing blades; 704. Liquid inlet tank; 705. Cooling tank; 706. Coolant jacket; 707. Coolant inlet pipe; 708. Coolant outlet pipe; 709. Annular dividing grid frame; 710. Guide channel; 8. Fine mixing adjustment mechanism; 801. Hydraulic rod; 802. Annular support; 803. Connecting guide rod; 804. Liquid inlet hole; 805. Arc-shaped guide channel; 806. Exhaust pipe; 807. Air guide channel; 808. Air supply channel; 809. Air pipe connector; 810. Connecting support; 811. Fixed air guide pipe; 8 12. First fixed circular block; 813. Ventilation groove; 814. Air guide core; 815. Return spring; 816. Air blocking ring; 817. First air blocking block; 818. First vent hole; 819. Second fixed circular block; 820. Second air blocking block; 821. Second vent hole; 822. Air guide contact head; 823. Bottom air outlet; 824. First sealing joint; 825. Second sealing joint; 826. Manifold; 827. Liquid outlet branch pipe; 828. First telescopic motor; 829. First closed-flow piston; 830. Concentration detector; 831. Liquid level sensor; 832. Second telescopic motor; 833. Second closed-flow piston; 834. Arc-shaped connecting plate; 835. Triangular flow divider plate; 836. Alcohol injection control valve; 837. Water injection control valve. Detailed Implementation

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention.

[0018] Please see Figures 1-12 The present invention provides a technical solution: a dilution device for alcohol production, including a device base 1, a central mounting frame 2 fixedly installed on the device base 1, a processing tank 3 fixedly installed on the central mounting frame 2, an inlet pipe 4 fixedly installed on the upper side of the device base 1, the inlet pipe 4 communicating with three sets of processing tanks 3, a separator piston 5 movably installed in each of the processing tanks 3, and a static mixer 6 fixedly installed on the lower side of the device base 1, the static mixer 6 communicating with the three sets of processing tanks 3; The rapid cooling mixing mechanism 7 includes coarse mixing blades 702, fine mixing blades 703 and coolant jacket 706. The coarse mixing blades 702 and fine mixing blades 703 are arranged in an array inside the liquid inlet pipe 4, and the coolant jacket 706 is arranged on the outside of the liquid inlet pipe 4. The fine mixing regulating mechanism 8 includes a liquid inlet 804, a gas guide groove 807, and a fixed gas guide pipe 811. Both the central mounting frame 2 and the processing tank 3 have liquid inlets 804. The upper side of the central mounting frame 2 is connected to the processing tank 3 through the liquid inlet 804. A gas guide groove 807 is located at the center of the separating piston 5. Fixed gas guide pipes 811 are installed inside the processing tank 3, with the separating piston 5 and the fixed gas guide pipes 811 abutting against each other. The gas guide groove 807 is connected to the fixed gas guide pipes 811. This equipment realizes coarse mixing, diversion regulation, and confluence output of alcohol and water. The liquid inlet pipe 4 is used for preliminary mixing of alcohol and water. The processing tank 3 is configured in three groups, allowing the mixed liquid to be simultaneously diverted into different processing units for buffering and regulation. The separating piston 5 divides the interior of the processing tank 3 into a liquid storage area and a pneumatic area. The fine mixing regulating mechanism 8 is used to achieve fine mixing of bubbles and negative pressure gas separation inside the processing tank 3. The above settings allow alcohol and water to be processed in batches after coarse mixing, and concentration detection and secondary adjustment can be completed during the processing, thereby improving the concentration stability after dilution.

[0019] Furthermore, the rapid cooling mixing mechanism 7 also includes an inlet mixing chamber 701, an inlet tank 704, a cooling tank 705, a coolant inlet pipe 707, and a coolant outlet pipe 708. The inlet tank 704 is arrayed on the outer side of the inlet pipe 4. Cooling tanks 705 are formed inside both the coarse mixing blades 702 and the fine mixing blades 703, with the cooling tanks 705 opposite to the inlet tanks 704. A coolant inlet pipe 707 is located on the lower side of the coolant jacket 706, and a coolant outlet pipe 708 is located on the upper side of the coolant jacket 706. For example... Figure 9 and Figure 10 As shown, the function of this structure is to achieve simultaneous heat exchange between alcohol and water during the coarse mixing process. The inlet mixing chamber 701 has a through-cavity structure. Coarse mixing blades 702 and fine mixing blades 703 are arranged sequentially along the liquid flow direction. The coarse mixing blades 702 are larger in size and are used to initially guide and mix the incoming alcohol and water. The fine mixing blades 703 are smaller in size and more densely arranged to create high-frequency turbulence. Both coarse mixing blades 702 and fine mixing blades 703 are hollow structures, forming cooling grooves 705 inside, through which coolant can flow. Through the above arrangement, the heat-generating area can be cooled simultaneously during the liquid mixing process, preventing the temperature of the mixed liquid from rising and affecting the subsequent concentration detection results. Furthermore, the rapid cooling mixing mechanism 7 also includes an annular segmented mesh frame 709 and guide channels 710. The annular segmented mesh frame 709 is fixedly installed inside the coolant jacket 706. The annular segmented mesh frame 709 is fixedly installed on the outside of the inlet pipe 4. The shape of the annular segmented mesh frame 709 corresponds to the number and position of the inlet channels 704. Guide channels 710 are spirally arrayed on the annular segmented mesh frame 709. For example... Figure 9 and Figure 10 As shown, the function of this structure is to restrict the flow path of the coolant, ensuring that the coolant fully contacts the coarse mixing blades 702 and fine mixing blades 703 during flow. The annular segmented grid frame 709 has an annular grid structure, the number of which corresponds to the inlet grooves 704. The guide grooves 710 are distributed in a spiral array, causing the coolant to form a spiral guiding state when flowing inside the coolant jacket 706. Through the above arrangement, the coolant is forced to pass through the cooling grooves 705 inside the blades during flow, improving heat exchange efficiency and reducing concentration deviation caused by excessively high local temperatures. Furthermore, the fine mixing adjustment mechanism 8 also includes hydraulic rods 801, annular brackets 802, connecting guide rods 803, arc-shaped guide grooves 805, and exhaust pipes 806. Three sets of hydraulic rods 801 are mounted on the central mounting frame 2. Annular brackets 802 are provided on the upper side of the central mounting frame 2. All hydraulic rods 801 are fixedly mounted on the lower side of the annular brackets 802. Three sets of connecting guide rods 803 are fixedly mounted on the lower side of the annular brackets 802. The connecting guide rods 803 are fixedly mounted on the upper side of the separating piston 5 and are movably inserted into the upper side of the processing tank 3. Arc-shaped guide grooves 805 are arrayed on the inner wall of the processing tank 3. The height of the arc-shaped guide grooves 805 is greater than the width of the separating piston 5. The same set of exhaust pipes 806 is fixedly mounted on the upper side of the three processing tanks 3, and the exhaust pipes 806 are connected to the processing tanks 3. Figure 3 and Figure 7 As shown, the function of this structure is to drive the separating piston 5 to reciprocate inside the processing tank 3. The hydraulic rod 801 provides the lifting driving force, and the annular bracket 802 has an integral frame structure. The connecting guide rod 803 is fixedly connected to the separating piston 5, enabling the three sets of separating pistons 5 to move synchronously. The arc-shaped guide groove 805 has an arc-shaped groove structure, and its length is greater than the thickness of the separating piston 5, allowing the liquid storage area and the pneumatic area to form a temporary connection when the separating piston 5 moves to the corresponding position. Through the above settings, automatic venting can be achieved during liquid inlet, and a negative pressure environment can be formed when the piston moves upward, facilitating the precipitation of bubbles inside the mixture. The precipitation of bubbles under negative pressure can increase the accuracy of concentration detection. Furthermore, the fine mixing adjustment mechanism 8 also includes an air supply channel 808, an air pipe connector 809, a connecting bracket 810, and a bottom air outlet 823. Each connecting guide rod 803 has an air guide groove 807 that communicates with the air guide groove 807 on the separating piston 5. An air supply channel 808 is provided inside the annular bracket 802, communicating with the air guide groove 807. An air pipe connector 809 is fixedly installed on one side of the annular bracket 802, communicating with the air supply channel 808. Bottom air outlets 823 are arrayed on the lower side of the fixed air guide pipe 811. Figure 3 and Figure 5 As shown, the function of this structure is to introduce inert gas into the processing tank 3 for fine mixing. The gas supply channel 808 is connected to the gas pipe connector 809, allowing external inert gas to enter the fixed gas guide pipe 811. The fixed gas guide pipe 811 has a through-tube structure, with an array of bottom outlet holes 823, allowing the inert gas to form uniform bubbles after entering the bottom of the liquid. Through this arrangement, the inert gas can form an upward bubble flow inside the liquid, further refining the coarsely mixed liquid, improving concentration uniformity, and reducing local concentration deviations. Furthermore, the fine mixing adjustment mechanism 8 also includes a first fixed circular block 812, a venting groove 813, a venting core 814, a return spring 815, a blocking ring 816, a first blocking block 817, a first vent hole 818, a second fixed circular block 819, a second blocking block 820, a second vent hole 821, and a venting contact head 822. The first fixed circular block 812 is fixedly installed within the venting groove 807 on the separating piston 5. Venting grooves 813 are arrayed on the first fixed circular block 812. A venting core 814 is movably inserted into the first fixed circular block 812. A return spring 815 is sleeved on the venting core 814. A blocking ring 816 is fixedly installed on the lower side of the venting core 814. One end of the return spring 815 abuts against the blocking ring 816, and the other end abuts against the first fixed circular block 812. The lower sides abut against each other. A first air-blocking block 817 is fixedly installed at the center of the lower side of the air-blocking ring 816. A first vent hole 818 is arrayed on the air-blocking ring 816. A second fixed circular block 819 is fixedly installed at the lower end of the air guide groove 807 opened on the separating piston 5. A second air-blocking block 820 is fixedly installed on the upper side of the second fixed circular block 819. The second air-blocking block 820 is inserted into the first vent hole 818. A second vent hole 821 is opened at the center of the second fixed circular block 819. The first air-blocking block 817 is inserted into the second vent hole 821. A venting contact head 822 is fixedly installed at the upper end of the fixed venting pipe 811. The diameter of the upper end of the venting contact head 822 is smaller than the diameter of the first air-blocking block 817. The venting contact head 822 abuts against the first air-blocking block 817. Figure 4 and Figure 12 As shown. The gas guide core 814 and the fixed gas guide tube 811 form a detachable plug-in structure. The return spring 815 is used to provide return force so that the gas guide structure automatically resets when not in operation. The gas blocking ring 816 cooperates with the first gas blocking block 817 and the second gas blocking block 820 to form a segmented sealing structure to prevent the solution from entering the gas passage and causing subsequent concentration contamination. Furthermore, the fine mixing adjustment mechanism 8 also includes a first sealing joint 824 and a second sealing joint 825. The first sealing joint 824 is fixedly installed at the upper end of the fixed air guide pipe 811, and the second sealing joint 825 is fixedly installed at the center position of the lower side of the separator piston 5. The shape of the opposite surface of the second sealing joint 825 is adapted to the first sealing joint 824, and the first sealing joint 824 and the second sealing joint 825 fit together. The upper end of the air guide contact head 822 is higher than the first sealing joint 824. Figure 4 and Figure 12As shown, the function of this structure is to achieve a sealed fit and separation control between the gas guiding structure and the separating piston 5. A first sealing joint 824 is provided at the upper end of the fixed gas guiding pipe 811, and a second sealing joint 825 is provided at the lower side of the separating piston 5. When the two are in contact with each other, they form a sealed fit structure to achieve gas-liquid isolation. However, because the gas guiding contact head 822 is relatively long, when the separating piston 5 is to move to the lower position, the gas guiding contact head 822 will first contact the first gas blocking block 817, causing the gas guiding core 814 to move upward and the gas passage to open in advance. At this time, the separating piston 5 has not moved to the center position of the arc-shaped guide groove 805. The arc-shaped guide groove 805 does not perform the function of connecting the liquid storage area and the pneumatic area. The first sealing joint 824 and the second sealing joint 825 do not contact each other, leaving a gap to allow airflow to pass through, which can achieve cleaning of the inner wall of the treatment tank 3. Furthermore, the fine mixing adjustment mechanism 8 also includes a manifold 826, an outlet branch pipe 827, a first telescopic motor 828, a first closed-flow piston 829, a concentration detector 830, and a level sensor 831. The manifold 826 is located on the lower side of the central mounting frame 2. Outlet branch pipes 827 are fixedly installed at the lower end of the processing tank 3. All three sets of outlet branch pipes 827 are fixedly installed on and connected to the manifold 826. The first telescopic motor 828 is installed inside the lower side of the central mounting frame 2. The first closed-flow piston 829 is fixedly installed on the telescopic rod of the first telescopic motor 828. The first closed-flow piston 829 is inside the manifold 826 and fits against the inner wall of the manifold 826. The static mixer 6 is fixedly installed on the lower side of the manifold 826. A concentration detector 830 is fixedly installed on the lower side of each outlet branch pipe 827. A level sensor 831 is fixedly installed on the lower side of the separating piston 5. Figure 3 and Figure 6 As shown, this structure is the liquid discharge control structure. After the liquid in the three sets of treatment tanks 3 is discharged, it will be concentrated in the manifold 826 and mixed again by the static mixer 6. At this time, the mixing is between solutions with small concentration differences. The mixture is stable and can be discharged directly. Furthermore, the fine mixing regulating mechanism 8 also includes a second telescopic motor 832, a second closed-flow piston 833, an arc-shaped connecting plate 834, a triangular flow divider 835, an alcohol injection control valve 836, and a water injection control valve 837. The second telescopic motor 832 is fixedly installed inside the upper end of the central mounting frame 2. The second closed-flow piston 833 is movably inserted into the upper end of the central mounting frame 2. Three sets of arc-shaped connecting plates 834 are fixedly installed on the upper side of the second closed-flow piston 833. Triangular flow dividers 835 are fixedly installed between the three sets of arc-shaped connecting plates 834. The spacing of the arc-shaped connecting plates 834 is opposite to the liquid inlet 804. One set of processing tanks 3 is equipped with an alcohol injection control valve 836, and another set of processing tanks 3 is equipped with a water injection control valve 837. Figure 1 and Figure 8As shown, this structure is a closed structure for the inlet 804. The triangular flow divider 835 can divert the flow, but this diversion is only coarse and cannot guarantee that the volume of the solution in the three processing tanks 3 is the same. However, when the height of the solution exceeds the triangular flow divider 835, the solutions in the three processing tanks 3 will be connected, thus ensuring that the volume of the solution in the three processing tanks 3 is the same. By moving the second flow-closing piston 833 upward to close the inlet 804, the inlet 804 can be gradually blocked from bottom to top, and the triangular flow divider 835 will rise. The connection can be terminated when the flow is high. The remaining solution at the arc-shaped connecting plate 834 and the triangular diverter plate 835 can be located above the inlet hole 804. After the alcohol and water are mixed, the volume will decrease, which can make room for the remaining solution to be discharged into the treatment tank 3, reducing the concentration pollution caused by the solution residue. The alcohol injection control valve 836 and the water injection control valve 837 can adjust the concentration again according to the data detected by the concentration detector 830 and the liquid level sensor 831, so that the final output solution concentration meets the standard. Working Principle: During operation, alcohol and water first enter the device through the inlet pipe 4. As the fluid flows through the interior, it passes through the initial guidance of the coarse mixing blade 702 and the high-frequency turbulence of the fine mixing blade 703, achieving initial coarse mixing. During this mixing process, to avoid the heat released by the mixing of alcohol and water interfering with subsequent concentration detection, external coolant simultaneously enters the outer coolant jacket 706 from the coolant inlet pipe 707. Under the forced restriction and guidance of the annular dividing mesh frame 709 and the spiral guide channel 710, the coolant is forced to flow through the cooling channel 705 inside the hollow blades, efficiently cooling the heat-releasing area while the liquid is being mixed.

[0020] The rapidly cooled and coarsely mixed liquid then flows to the inlet 804, where it is initially diverted by the triangular diverter 835 and directed into the three independent processing tanks 3 below. When the liquid level of the mixture exceeds the triangular diverter 835, the liquids in the three processing tanks 3 become interconnected, ensuring that the solution volumes in the three tanks are completely consistent. After the liquid distribution is completed, the second telescopic motor 832 drives the second closed-flow piston 833 to move upward, gradually closing the inlet 804 from bottom to top. Because the volume shrinks after the alcohol and water are mixed, the small amount of solution remaining at the arc-shaped connecting plate 834 and the triangular diverter 835 on the upper side of the inlet 804 can gain space and smoothly drain into the processing tank 3, thereby effectively reducing the concentration contamination caused by solution residue to the next batch.

[0021] After the solution enters the treatment tank 3, the equipment begins deep mixing and bubble precipitation. External inert gas is introduced through the gas supply channel 808 and discharged into the bottom of the liquid through the bottom vent 823 at the bottom of the fixed gas guide pipe 811, forming a uniform rising bubble flow. This provides secondary deep mixing and agitation of the liquid. The segmented sealing structure formed by the internal gas guide core 814 and gas blocking ring 816 effectively prevents the solution from entering the gas passage and causing contamination. The hydraulic rod 801 drives the separating piston 5 to reciprocate inside the tank. When the separating piston 5 moves upward to the corresponding position of the arc-shaped guide groove 805 on the inner wall, the liquid storage area and the pneumatic area are temporarily connected to achieve automatic venting. As the separating piston 5 continues to move upward, a negative pressure environment is formed inside the treatment tank 3, forcing the tiny bubbles carried in the mixture to precipitate rapidly. This eliminates the interference of bubbles on the accuracy of concentration detection. The inert gas can fill the space above the solution, allowing concentration detection at normal temperature and pressure, and under stable upper gas conditions, thus increasing the stability of concentration detection.

[0022] After the fine mixing process is completed, the level sensor 831 located below the separator piston 5 and the concentration detector 830 at the outlet branch pipe 827 will acquire the liquid level and concentration data in each independent processing tank 3 in real time. Since the liquid is processed in batches in the three processing tanks 3, if the concentration in a certain group of tanks deviates, the system can directly control the alcohol injection control valve 836 or water injection control valve 837 corresponding to the processing tank 3 to perform small-batch precise secondary liquid replenishment based on the detection data. The replenishment is based on the total volume and concentration of the three processing tanks 3, so that the solution concentration in the three processing tanks 3 reaches the standard, rather than the solution concentration in each tank being the standard concentration.

[0023] Finally, after the solutions in all three processing tanks 3 have been tested and adjusted, the first telescopic motor 828 retracts, driving the first closed-flow piston 829 to open the bottom manifold 826. The three solutions with similar concentrations and all meeting the standards converge simultaneously into the manifold 826 through the outlet branch pipe 827, and are then uniformly mixed for the last time by the static mixer 6 on the lower side before flowing out of the equipment, ultimately resulting in a stable output of a diluted alcohol solution with high concentration accuracy and stable state.

[0024] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0025] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dilution device for alcohol production, comprising a device base (1), wherein a central mounting bracket (2) is fixedly mounted on the device base (1), characterized in that: The central mounting frame (2) is fixedly mounted with a processing tank (3), and the upper side of the equipment base (1) is fixedly mounted with an inlet pipe (4). The inlet pipe (4) is connected to the three sets of processing tanks (3). Each processing tank (3) is movably equipped with a separator piston (5). The lower side of the equipment base (1) is fixedly mounted with a static mixer (6). The static mixer (6) is connected to the three sets of processing tanks (3). The rapid cooling mixing mechanism (7) includes coarse mixing blades (702), fine mixing blades (703) and coolant jacket (706). The coarse mixing blades (702) and fine mixing blades (703) are arranged in an array inside the liquid inlet pipe (4), and the coolant jacket (706) is arranged on the outside of the liquid inlet pipe (4). The fine mixing adjustment mechanism (8) includes a liquid inlet (804), a gas guide groove (807), and a fixed gas guide pipe (811). The central mounting frame (2) and the processing tank (3) are both provided with liquid inlets (804). The upper side of the central mounting frame (2) is connected to the processing tank (3) through the liquid inlet (804). The center position of the separating piston (5) is provided with a gas guide groove (807). The processing tank (3) is provided with a fixed gas guide pipe (811). The separating piston (5) and the fixed gas guide pipe (811) abut against each other. The gas guide groove (807) is connected to the fixed gas guide pipe (811).

2. A dilution device for alcohol production according to claim 1, characterized in that: The rapid cooling mixing mechanism (7) further includes an inlet mixing chamber (701), an inlet tank (704), a cooling tank (705), a coolant inlet pipe (707), and a coolant outlet pipe (708). The inlet tank (704) is arranged in an array on the outer side of the inlet pipe (4). The coarse mixing blade (702) and the fine mixing blade (703) are both provided with cooling tanks (705). The cooling tank (705) is opposite to the inlet tank (704). The coolant jacket (706) is provided with a coolant inlet pipe (707) on the lower side and a coolant outlet pipe (708) on the upper side of the coolant jacket (706).

3. A dilution device for alcohol production according to claim 1, characterized in that: The rapid cooling mixing mechanism (7) further includes an annular dividing mesh frame (709) and a guide groove (710). The annular dividing mesh frame (709) is fixedly installed inside the coolant jacket (706). The annular dividing mesh frame (709) is fixedly installed on the outside of the liquid inlet pipe (4). The shape of the annular dividing mesh frame (709) is relative to the number and position of the liquid inlet groove (704). The guide groove (710) is spirally arrayed on the annular dividing mesh frame (709).

4. A dilution device for alcohol production according to claim 1, characterized in that: The fine mixing adjustment mechanism (8) further includes hydraulic rods (801), annular brackets (802), connecting guide rods (803), arc-shaped guide grooves (805), and exhaust pipes (806). Three sets of hydraulic rods (801) are installed on the central mounting frame (2). Annular brackets (802) are provided on the upper side of the central mounting frame (2). The hydraulic rods (801) are all fixedly installed on the lower side of the annular brackets (802). Three sets of connecting guide rods are fixedly installed on the lower side of the annular brackets (802). The connecting guide rod (803) is fixedly installed on the upper side of the separating piston (5). The connecting guide rod (803) is movably inserted on the upper side of the processing tank (3). The inner wall of the processing tank (3) is provided with an array of arc-shaped guide grooves (805). The height of the arc-shaped guide grooves (805) is greater than the width of the separating piston (5). The upper sides of the three sets of processing tanks (3) are fixedly installed with the same set of exhaust pipes (806) and the exhaust pipes (806) are connected to the processing tanks (3).

5. A dilution device for alcohol production according to claim 4, characterized in that: The fine mixing adjustment mechanism (8) further includes an air supply channel (808), an air pipe connector (809), a connecting bracket (810), and a bottom air outlet (823). Each connecting guide rod (803) is provided with an air guide groove (807) and communicates with the air guide groove (807) on the separator piston (5). An air supply channel (808) is provided in the annular bracket (802), and the air supply channel (808) communicates with the air guide groove (807). An air pipe connector (809) is fixedly installed on one side of the annular bracket (802), and the air pipe connector (809) communicates with the air supply channel (808). The bottom air outlet (823) is arrayed on the lower side of the fixed air guide pipe (811).

6. A dilution device for alcohol production according to claim 1, characterized in that: The fine mixing adjustment mechanism (8) further includes a first fixed circular block (812), a vent groove (813), a guide core (814), a return spring (815), a blocking ring (816), a first blocking block (817), a first vent hole (818), a second fixed circular block (819), a second blocking block (820), a second vent hole (821), and a guide contact head (822). The first fixed circular block (819), a second blocking block (820), a second vent hole (821), and a guide contact head (822) are fixedly installed in the guide groove (807) opened on the separator piston (5). A fixed circular block (812) has air grooves (813) arranged in an array on it. A guide core (814) is movably inserted into the first fixed circular block (812). A return spring (815) is sleeved on the guide core (814). An air-blocking ring (816) is fixedly installed on the lower side of the guide core (814). One end of the return spring (815) abuts against the air-blocking ring (816), and the other end is against the first fixed circular block (812). The lower sides abut against each other, and a first air-blocking block (817) is fixedly installed at the center of the lower side of the air-blocking ring (816). A first air vent (818) is arrayed on the air-blocking ring (816). A second fixed round block (819) is fixedly installed at the lower end of the air guide groove (807) opened on the separator piston (5). A second air-blocking block (820) is fixedly installed on the upper side of the second fixed round block (819). The second air-blocking block (820) is inserted into the first air vent. Inside the vent (818), a second vent (821) is provided at the center of the second fixed circular block (819). The first air-blocking block (817) is inserted into the second vent (821). An air-guiding contact head (822) is fixedly installed at the upper end of the fixed air-guiding pipe (811). The diameter of the upper end of the air-guiding contact head (822) is smaller than the diameter of the first air-blocking block (817). The air-guiding contact head (822) abuts against the first air-blocking block (817).

7. A dilution device for alcohol production according to claim 6, characterized in that: The fine mixing adjustment mechanism (8) further includes a first sealing joint (824) and a second sealing joint (825). The upper end of the fixed air guide pipe (811) is fixedly installed with the first sealing joint (824), and the center position of the lower side of the separator piston (5) is fixedly installed with the second sealing joint (825). The shape of the opposite surface of the second sealing joint (825) and the first sealing joint (824) are adapted to each other. The first sealing joint (824) and the second sealing joint (825) fit together. The upper end of the air guide contact head (822) is higher than the first sealing joint (824).

8. A dilution device for alcohol production according to claim 1, characterized in that: The fine mixing adjustment mechanism (8) further includes a manifold (826), an outlet branch pipe (827), a first telescopic motor (828), a first closed-flow piston (829), a concentration detector (830), and a level sensor (831). The manifold (826) is provided on the lower side of the central mounting frame (2). The lower end of the processing tank (3) is fixedly installed with an outlet branch pipe (827). All three sets of outlet branch pipes (827) are fixedly installed on the manifold (826) and communicate with the manifold (826). The central mounting frame (828) is also provided with a manifold (826). 2) A first telescopic motor (828) is installed inside the lower side of the first telescopic motor (828). A first closed-flow piston (829) is fixedly installed on the telescopic rod of the first telescopic motor (828). The first closed-flow piston (829) is inside the manifold (826) and is in contact with the inner wall of the manifold (826). The static mixer (6) is fixedly installed on the lower side of the manifold (826). A concentration detector (830) is fixedly installed on the lower side of the liquid outlet branch pipe (827). A liquid level sensor (831) is fixedly installed on the lower side of the separator piston (5).

9. A dilution device for alcohol production according to claim 1, characterized in that: The fine mixing adjustment mechanism (8) also includes a second telescopic motor (832), a second closed-flow piston (833), an arc-shaped connecting plate (834), a triangular flow divider (835), an alcohol injection control valve (836), and a water injection control valve (837). The second telescopic motor (832) is fixedly installed inside the upper end of the central mounting frame (2). The second closed-flow piston (833) is movably inserted into the upper end of the central mounting frame (2). Three sets of arc-shaped connecting plates (834) are fixedly installed on the upper side of the second closed-flow piston (833). A triangular flow divider (835) is fixedly installed between the three sets of arc-shaped connecting plates (834). The interval of the arc-shaped connecting plates (834) is opposite to the liquid inlet (804). An alcohol injection control valve (836) is installed on one set of the processing tank (3), and a water injection control valve (837) is installed on another set of the processing tank (3).

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