Heat energy recycling system for white spirit distillation

Abstract

The invention provides a heat energy recycling system for white spirit distillation. The heat energy recycling system comprises a distillation module, a cooling module, a first-stage heat recovery module, a second-stage heat recovery module and a heat energy secondary utilization module. Wherein the distillation module is used for distilling white spirit and generating hot steam; one end of the cooling module is communicated with the top end of the distillation module for recovering and cooling hot steam; the primary heat recovery module communicates with the cooling module and is used for recovering heat exchange water for cooling in the cooling module; the input end of the second-stage heat recovery module communicates with the first output end of the first-stage heat recovery module, the output end of the second-stage heat recovery module communicates with the input end of the distillation module, and the second-stage heat recovery module is used for recovering heat energy of hot water in the first-stage heat recovery module and transmitting the heat energy to the distillation module; the input end of the heat energy secondary utilization module communicates with the output end of the first-stage heat recovery module and the output end of the second-stage heat recovery module. According to the scheme provided by the invention, efficient recovery and multiple utilization of heat energy can be realized.

Description

Technical Field

[0001] The invention relates to the technical field of liquor brewing, in particular to a heat energy recovery and utilization system for liquor distillation. Background Art

[0002] The utilization and recovery of heat energy is a crucial link in the winemaking and distillation process, especially in the production of liquor, where the distillation process requires a large amount of heat energy. The existing liquor distillation process usually involves multiple steps such as heating, cooling and distillation, which generates a large amount of waste heat. Traditional heat recovery technologies mainly rely on cooling towers and heat exchangers, but the heat recovery efficiency of these devices is low, and they fail to fully recover and reuse the waste heat generated in the distillation process, resulting in energy waste and environmental burden. Most of the recovered hot water is directly discharged and is not fully used for other needs in the production process, such as moistening grains, showering, heating, etc., resulting in additional energy consumption and resource waste.

[0003] Existing cooling systems typically focus solely on cooling the heat required during the distillation process, while neglecting the hot water needs of other processes. Inadequate integration of heat recovery and utilization across multiple stages results in low energy efficiency. Furthermore, many existing technologies lack the flexibility to address the complex heat exchange requirements of the liquor distillation process, nor do they optimize the management of multiple heat recovery and reuse processes, from distillation to other production stages. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a heat energy recovery and utilization system for liquor distillation, so as to efficiently recover and multiple-use heat energy during the distillation process, thereby optimizing the overall energy utilization efficiency and avoiding energy waste and consumption.

[0005] In order to solve the above technical problems, the technical solutions of the present invention are as follows:

[0006] A heat energy recovery and utilization system for liquor distillation, comprising:

[0007] A distillation module, which is used for distilling liquor and generating hot steam during the distillation process;

[0008] a cooling module, one end of which is in communication with the top of the distillation module and is used to recover and cool the hot steam generated by the distillation module;

[0009] a primary heat recovery module, the primary heat recovery module being in communication with the cooling module and being used to recover the heat exchange water used for cooling in the cooling module;

[0010] a secondary heat recovery module, wherein the input end of the secondary heat recovery module is in communication with the first output end of the primary heat recovery module, and the output end of the secondary heat recovery module is in communication with the input end of the distillation module, for recovering heat energy from the hot water in the primary heat recovery module and transferring the heat energy to the distillation module; and

[0011] A heat energy secondary utilization module, wherein the input end of the heat energy secondary utilization module is respectively connected to the output end of the primary heat recovery module and the output end of the secondary heat recovery module.

[0012] In one embodiment, the distillation module comprises:

[0013] a ground pot, the input end of the ground pot being in communication with the output end of the secondary heat recovery module; and

[0014] A wine retort is arranged in the ground pot, and the upper end of the wine retort is connected to the cooling module.

[0015] In one embodiment, the cooling module comprises:

[0016] A cooler, one end of which is connected to the top of the distillation module, and the cooler is connected to the primary heat recovery module through a hot water inlet pipe and a hot water outlet pipe; a three-stage hot water exchange is provided in the cooler; and

[0017] a cooling tower, the cooling tower being connected to the cooler through a cooling water inlet pipe and a cooling water outlet pipe, and being used to cool the hot water in the cooler;

[0018] Optionally, a temperature sensor is provided on the cooling water inlet pipe, and a first electromagnetic three-way valve and a water exchange water circulation pump are provided on the cooling water outlet pipe.

[0019] In one embodiment, the cooling tower comprises:

[0020] tower body;

[0021] A cooling water tank is provided at the bottom of the tower body, and water in the cooling water tank is pumped into the top of the tower body for spraying through a spray water circulation pump; and

[0022] A cooling water tank is provided at one side of the cooling water tank and is in communication with the cooling water tank, and is used for replenishing water for the cooling water tank.

[0023] In one embodiment, the primary heat recovery module is a heat recovery water tank, and a second electromagnetic three-way valve is provided on the hot water inlet pipe connecting the heat recovery water tank to the cooler, and a third electromagnetic three-way valve is provided on the hot water outlet pipe connecting the heat recovery water tank to the cooler.

[0024] In one embodiment, the heat energy secondary utilization module includes:

[0025] a grain conditioning module, the grain conditioning module being connected to the heat recovery water tank via a first heat exchanger, exchanging heat with hot water in the heat recovery water tank via the first heat exchanger to heat the cold water in the grain conditioning module, and the grain conditioning module being connected to an output end of the secondary heat recovery module;

[0026] a bathing heat exchange module, the bathing heat exchange module being connected to the heat recovery water tank via a second heat exchanger; and

[0027] A heating module is connected to the heat recovery water tank through a third heat exchanger, and the heating module is connected to the output end of the secondary heat recovery module.

[0028] In one embodiment, the secondary heat recovery module comprises:

[0029] a first evaporation submodule, one end of which is connected to the heat recovery water tank and is used to evaporate the hot water in the heat recovery water tank and generate first steam;

[0030] a second evaporation submodule, one end of which is in communication with the heat recovery water tank via a fourth heat exchanger, for exchanging heat with the heat recovery water tank and generating second steam; and

[0031] A steam output submodule, wherein the input end of the steam output submodule is respectively connected to the output end of the first evaporation submodule and the output end of the second evaporation submodule, and the output end of the steam output submodule is respectively connected to the distillation module and the heating module, and is used to transport the steam generated by the first evaporation submodule and the second evaporation submodule to the distillation module and the heating module respectively.

[0032] In one embodiment, the first evaporation submodule includes:

[0033] a negative pressure flash tank, one end of which is connected to the heat recovery water tank and is used to evaporate the hot water in the heat recovery water tank and generate first steam; and

[0034] A first ejector, one end of the first ejector is connected to the other end of the negative pressure flash tank, and the other end of the first ejector is connected to the steam output submodule, for guiding and distributing the first steam generated by the negative pressure flash tank to the steam output submodule.

[0035] In one embodiment, the second evaporation submodule includes:

[0036] a boiler water supply tank, which exchanges heat with the heat recovery water tank through the fourth heat exchanger and heats the cooling water therein before being transported to the boiler to generate second steam; and

[0037] A steam sub-cylinder, one end of which is connected to the boiler through a steam pipe, and the other end of which is connected to the steam output sub-module, is used to guide and distribute the second steam generated by the boiler to the steam output sub-module.

[0038] In one embodiment, the steam output submodule is a second ejector.

[0039] The above solution of the present invention includes at least the following beneficial effects:

[0040] The above-mentioned solution of the present invention provides a heat energy recovery and utilization system for liquor distillation, comprising a distillation module, a cooling module, a primary heat recovery module, a secondary heat recovery module, and a heat energy secondary utilization module. The distillation module is used for liquor distillation and generates hot steam during the distillation process; one end of the cooling module is connected to the top of the distillation module for recovering and cooling the hot steam generated by the distillation module; the primary heat recovery module is connected to the cooling module for recovering the hot water used for cooling in the cooling module; the input end of the secondary heat recovery module is connected to the first output end of the primary heat recovery module, and the output end of the secondary heat recovery module is connected to the input end of the distillation module for recovering the heat energy of the hot water in the primary heat recovery module and transmitting the heat energy to the distillation module; the input end of the heat energy secondary utilization module is connected to the output end of the primary heat recovery module and the output end of the secondary heat recovery module, respectively. The above-mentioned solution of the present invention achieves efficient recovery and multiple utilization of heat energy during the distillation process by cooperating with the two-stage heat recovery module, the distillation module, and the heat energy secondary utilization module, while optimizing the overall energy utilization efficiency and avoiding energy waste and consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 Schematic diagram of a heat energy recovery and utilization system for liquor distillation provided by an embodiment of the present invention;

[0042] Figure 2 This is a schematic diagram of the distribution of three different levels of hot water in a cooler provided by an optional embodiment of the present invention;

[0043] Figure 3 This is a schematic diagram of the internal structure of a cooling tower provided by an optional embodiment of the present invention;

[0044] Figure 4 Schematic diagram of a first electromagnetic three-way valve, a second electromagnetic three-way valve, and a third electromagnetic three-way valve provided in an optional embodiment of the present invention.

[0045] Explanation of the accompanying symbols: 100, distillation module; 200, cooling module; 300, grain moistening module; 400, bathing heat exchange module; 500, heating module; 600, secondary heat recovery module; 1, ground pot; 2, wine steamer; 3, cooler; 4, cooling tower; 5, cooling outlet pipe; 6, first electromagnetic three-way valve; 61, first valve; 62, second valve; 7, hot water exchange circulation pump; 8, cooling water inlet pipe; 9, temperature sensor; 10, spray water circulation pump; 11, fan; 12, cooling tower drain valve; 13, float valve; 14, cooling water tank; 15, cooling water tank; 16, first stage hot water exchange; 17, second stage hot water exchange; 18, third stage hot water exchange; 19, heat recovery tank; 2 0. Valve; 21. Second solenoid three-way valve; 211. Third valve; 212. Fourth valve; 22. Third solenoid three-way valve; 221. Fifth valve; 222. Sixth valve; 23. Hot water outlet pipe for exchange; 24. First heat exchanger; 25. Grain-moistening water tank; 25. Grain-moistening water tank; 26. Water inlet pipe for grain-moistening water tank; 27. Second heat exchanger; 28. Grain-moistening hot water tank; 29. ​​Shower device; 30. Water inlet pipe for grain-moistening hot water tank; 31. Third heat exchanger; 32. Heating hot water tank; 33. Heater; 34. Negative pressure flash tank; 35. Boiler; 36. Boiler feed water tank; 37. Fourth heat exchanger; 38. Steam distributor; 39. Water softener; 40. First ejector; 41. Second ejector. DETAILED DESCRIPTION

[0046] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0047] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, well-known devices, structures, and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

[0048] Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any manner in one or more embodiments.

[0049] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0050] See Figure 1 An embodiment of the present invention provides a heat energy recovery and utilization system for liquor distillation, comprising a distillation module 100, a cooling module 200, a primary heat recovery module, a secondary heat recovery module 600, and a heat energy secondary utilization module. The distillation module 100 is used for liquor distillation and generates hot steam during the distillation process. One end of the cooling module 200 is connected to the top of the distillation module 100 and is used to recover and cool the hot steam generated by the distillation module 100. The primary heat recovery module is connected to the cooling module 200 and is used to recover the hot water used for cooling in the cooling module 200. The input end of the secondary heat recovery module 600 is connected to the first output end of the primary heat recovery module, and the output end of the secondary heat recovery module 600 is connected to the input end of the distillation module 100, for recovering the heat energy of the hot water in the primary heat recovery module and transferring the heat energy to the distillation module 100. The input end of the heat energy secondary utilization module is connected to the output end of the primary heat recovery module and the output end of the secondary heat recovery module 600, respectively.

[0051] In this embodiment, the distillation module 100 is the core link of liquor production. By heating the mash, the alcohol and other components therein are vaporized to form hot steam, which provides a heat source for subsequent heat energy recovery. In a feasible example of the present invention, the distillation module 100 may include a ground pot 1 and a wine steamer 2. Among them, the ground pot 1 is mainly used to heat the mash to promote its evaporation and generate steam; the input end of the ground pot 1 is connected to the external heat source equipment, and the input end of the ground pot 1 is also connected to the output end of the secondary heat recovery module 600, so that the secondary heat recovery module 600 can reheat the ground pot 1 after recovering the heat energy; the wine steamer 2 is arranged in the ground pot 1, for collecting and conducting the steam generated by the ground pot 1, and the upper end of the wine steamer 2 is connected to the cooling module 200 to ensure that the steam can smoothly enter the cooling module 200 for cooling.

[0052] In an optional embodiment of the present invention, the distillation module 100 includes a ground pot 1 and a wine retort 2. The input end of the ground pot 1 is connected to the output end of the secondary heat recovery module 600; the wine retort 2 is disposed within the ground pot 1, and the upper end of the wine retort 2 is connected to the cooling module 200.

[0053] Furthermore, the cooling module 200 is provided with a heat exchange water, and heat is exchanged between the heat exchange water and the hot steam entering the module, thereby condensing the hot steam into liquid and transferring the heat exchange water to the subsequent heat recovery module for heat recovery.

[0054] Here, a primary heat recovery module is set up and the primary heat recovery module is directly connected to a part of the heat energy secondary utilization module to fully utilize the heat energy that can be directly used in the primary heat recovery module; a secondary heat recovery module 600 is set up to further convert the heat energy that cannot be directly utilized in the primary heat recovery module (such as evaporating the water in the primary heat recovery module to generate hot steam), thereby realizing secondary recovery and conversion of heat energy, and the secondary heat recovery module 600 is connected to a part of the heat energy secondary utilization module to more efficiently distribute and utilize heat.

[0055] In an optional embodiment of the present invention, cooling module 200 includes a cooler 3 and a cooling tower 4. One end of cooler 3 is connected to the top of distillation module 100, and cooler 3 is connected to the primary heat recovery module via a hot water inlet pipe and a hot water outlet pipe 23. Cooler 3 is equipped with three stages of hot water exchange. Cooling tower 4 is connected to cooler 3 via a cooling water inlet pipe 8 and a cooling water outlet pipe 5, cooling the hot water in cooler 3.

[0056] In this embodiment, one end of the cooler 3 is connected to the top of the wine retort 2 to receive the hot steam transmitted by the wine retort 2 and cool it; Figure 2 As shown, there are three levels of hot water exchange in the cooler 3, namely the first-stage hot water exchange 16 in direct contact with the hot steam, the second-stage hot water exchange 17 in the middle, and the third-stage hot water exchange 18 in the outer layer. When the hot steam generated in the distillation module 100 enters the cooler 3 through the wine retort 2, the hot steam first exchanges heat with the first-stage hot water exchange 16. The heat of the hot steam is transferred to the first-stage hot water exchange 16, causing the steam to condense into water. At the same time, the temperature of the first-stage hot water exchange 16 increases. After the first-stage hot water exchange 16 is heated, its heat is transferred to the adjacent second-stage hot water exchange 17 (this process further recovers heat and reduces the temperature of the hot steam). After the second-stage hot water exchange 17 is heated, it transfers the heat to the third-stage hot water exchange 18. The third-stage hot water exchange 18 acts as a buffer and further dissipates heat, so that the heat in the entire cooler 3 is gradually transferred outward.

[0057] The cooler 3 and the cooling tower 4 form a hot water circulation system through the cooling water inlet pipe 8 and the cooling water outlet pipe 5; the hot water circulation pump 7 drives the hot water to circulate between the cooler 3 and the cooling tower 4, so that the cooling tower 4 cools the hot water of the cooler 3; the cooled hot water returns to the cooler 3 through the cooling water inlet pipe 8 and re-participates in the process of cooling the hot steam, thereby realizing the recycling of the hot water and the dissipation of heat.

[0058] like Figure 3 As shown, in an optional embodiment of the present invention, the cooling tower 4 includes a tower body, a cooling water tank 14, and a cooling water tank 15. The cooling water tank 14 is arranged at the bottom of the tower body, and the water in the cooling water tank 14 is pumped to the top of the tower body for spraying through a spray water circulation pump 10; the cooling water tank 15 is arranged on one side of the cooling water tank 14 and is connected to the cooling water tank 14 to replenish the cooling water tank 14.

[0059] Preferably, the cooling tower 4 further includes a fan 11. When the spray water circulation pump 10 brings the cooling water in the cooling water tank 14 into the top of the tower body for internal cooling circulation, the fan 11 automatically adjusts the power according to the outlet water temperature of the cooling water to improve the efficiency of the cooling circulation in the tower body.

[0060] Here, the cooling water tank 15 is connected to the cooling water tank 14 through a cooling water pipe to supply cooling water to the cooling water tank 14; preferably, the cooling water tank 14 is provided with a float valve 13, and a valve 20 is provided on the cooling water pipe. The float valve 13 is used to monitor the water level of the cooling water tank 14. When the water level is lower than the preset water level value, the control valve 20 is opened to automatically replenish water to the cooling water tank 14 to ensure the normal operation of the cooling tower 4.

[0061] Preferably, a cooling tower drain valve 12 is provided at the bottom of the cooling water tank 14. When the cooling tower 4 needs to clean the internal cooling water tank 14, the cooling tower drain valve 12 is opened to drain the sewage to ensure cleanliness and efficient operation of the cooling tower 4.

[0062] Preferably, a temperature sensor 9 is provided on the cooling water inlet pipe 8, and a first electromagnetic three-way valve 6 and a water exchange water circulation pump 7 are provided on the cooling water outlet pipe 5. Figure 1 and Figure 4When the water temperature of the first-stage hot water 16 in the cooler 3 is less than or equal to the set temperature, the second valve 62 on the first electromagnetic three-way valve 6 is closed and the first valve 61 is opened. At this time, the second-stage hot water 17 in the cooler 3 flows out through the cooling water outlet pipe 5 and is sent to the cooling tower 4 for cooling through the hot water circulation pump 7. The spray water circulation pump 10 in the cooling tower 4 brings the cooling water in the cooling water tank 14 into the top of the tower body to spray cool the second-stage hot water 17 entering the cooling tower 4; during the cooling process, the fan 11 automatically adjusts the power according to the outlet water temperature of the cooling water, enhances the air flow, and accelerates the cooling process of the second-stage hot water 17; further, the cooled hot water is monitored by the temperature sensor 9 and then flows back to the third-stage hot water 18 in the cooler 3 through the cooling water inlet pipe 8, thereby realizing heat exchange between the cooler 3 and the cooling tower 4.

[0063] Through the coordinated work of the cooler 3 and the cooling tower 4, and the heat transfer of the hot water at each level, the hot steam distilled from the wine retort 2 is effectively cooled, and the recovered heat is used in other production links, thereby improving the energy utilization efficiency.

[0064] In an optional embodiment of the present invention, the primary heat recovery module is a heat recovery water tank 19, and a second electromagnetic three-way valve 21 is provided on the hot water inlet pipe connecting the heat recovery water tank 19 to the cooler 3, and a third electromagnetic three-way valve 22 is provided on the hot water outlet pipe connecting the heat recovery water tank 19 to the cooler 3.

[0065] In this embodiment, see Figure 1 and Figure 4 , the heat recovery water tank 19 is connected to the cooler 3 through a hot water inlet pipe and a hot water outlet pipe 23. A second electromagnetic three-way valve 21 is provided on the hot water inlet pipe connected to the heat recovery water tank 19, and the third valve 211 of the second electromagnetic three-way valve 21 is connected to the hot water inlet pipe, and the fourth valve 212 of the second electromagnetic three-way valve 21 is connected to the cooling tower 4; a third electromagnetic three-way valve 22 is provided on the hot water outlet pipe connected to the heat recovery water tank 19, and the fifth valve 221 of the third electromagnetic three-way valve 22 is connected to the second valve 62 of the first electromagnetic three-way valve 6, and the sixth valve 222 of the third electromagnetic three-way valve 22 is connected to the cooler 3;

[0066] When the water temperature of the first-stage hot water 16 in the cooler 3 is less than or equal to the set temperature, the fourth valve 212 of the second electromagnetic three-way valve 21 is closed, the third valve 211 is opened, the fifth valve 221 of the third electromagnetic three-way valve 22 is closed, and the sixth valve 222 is opened. The first-stage hot water 16 in the cooler 3 flows into the heat recovery water tank 19 through the hot water inlet pipe for heat energy recovery and utilization, and the water in the heat recovery water tank 19 is sent back to the first-stage hot water 16 in the cooler 3 through the hot water outlet pipe for replenishment; when the water temperature of the first-stage hot water 16 in the cooler 3 is greater than the set temperature, When the temperature reaches 0.0403°C, the second valve 62 on the first electromagnetic three-way valve 6 is opened, the first valve 61 is closed, the fourth valve 212 of the second electromagnetic three-way valve 21 is opened, the third valve 211 is closed, the fifth valve 221 of the third electromagnetic three-way valve 22 is opened, and the sixth valve 222 is closed. The first-stage hot water 16, the second-stage hot water 17, and the third-stage hot water 18 in the cooler 3 are transported to the cooling tower 4 through the heat exchange outlet pipe 23 for cooling. The cooled water is transported back to the cooler 3, thereby realizing the circulation and cooling of the hot water in the cooler 3.

[0067] Furthermore, after the hot water generated by cooling the hot steam by the cooler 3 (that is, after the hot water is exchanged with the hot steam) is transported to the heat recovery water tank 19, the heat recovery water tank 19 can transfer the heat to the grain moistening module 300, the bathing heat exchange module 400 and the heating module 500 through the heat exchanger, so as to meet the hot water needs of other production links and realize the multiple utilization of thermal energy.

[0068] Continue reading Figure 1 In an optional embodiment of the present invention, the heat energy secondary utilization module includes a grain-conditioning module 300, a bathing heat exchange module 400, and a heating module 500. The grain-conditioning module 300 is connected to the heat recovery water tank 19 via a first heat exchanger 24. The first heat exchanger 24 heats the hot water in the heat recovery water tank 19 by exchanging heat with the cold water in the grain-conditioning module 300. The grain-conditioning module 300 is also connected to the output of a secondary heat recovery module 600. The bathing heat exchange module 400 is connected to the heat recovery water tank 19 via a second heat exchanger 27. The heating module 500 is connected to the heat recovery water tank 19 via a third heat exchanger 31 and is also connected to the output of the secondary heat recovery module 600.

[0069] In this embodiment, the grain moistening module 300 includes a first heat exchanger 24 and a grain moistening water tank 25. The first heat exchanger 24 is connected to the heat recovery water tank 19 through a steam pipe. The grain moistening water tank 25 is connected to the first heat exchanger 24 through a steam pipe. The hot water in the heat recovery water tank 19 exchanges heat through the first heat exchanger 24 to heat the cold water in the grain moistening water tank 25 for soaking the grain, thereby enhancing energy utilization efficiency and enabling thermal energy to be utilized across links, avoiding damage to the grain caused by direct use of hot water and making full use of thermal energy. The output end of the grain moistening water tank 25 is connected to the grain moistening water tank inlet pipe 26 so that water can be replenished in time when there is a shortage of water in the grain moistening water tank 25. Here, the grain moistening water tank 25 is connected to the output end of the secondary heat recovery module 600 to utilize the thermal energy converted by the secondary heat recovery module 600.

[0070] The bathing heat exchange module 400 includes a second heat exchanger 27, a moistening hot water tank 28 and a shower device 29. The heat recovery water tank 19 transfers heat to the moistening hot water tank 28 through the second heat exchanger 27 (thereby realizing heat transfer and hot water supply). The water in the moistening hot water tank 28 is heated and supplied to the shower device 29 for use. At the same time, the output end of the moistening hot water tank 28 is connected to the moistening hot water tank water inlet pipe 30. When the water volume is insufficient, water is added to ensure that there is sufficient hot water supply in the moistening hot water tank 28.

[0071] The heating module 500 includes a third heat exchanger 31, a heating hot water tank 32 and a heater 33. The third heat exchanger 31 recovers the heat in the heat recovery water tank 19 and transfers it to the cold water in the heating hot water tank 32 to achieve heat transfer and hot water supply; the cold water in the heating hot water tank 32 is heated and then transported to the heater 33 for heating, and the heating hot water tank 32 is connected to the output end of the secondary heat recovery module 600 to utilize the heat energy converted by the secondary heat recovery module 600.

[0072] Continue reading Figure 1 In an optional embodiment of the present invention, the secondary heat recovery module 600 includes a first evaporation submodule, a second evaporation submodule, and a steam output submodule. One end of the evaporation submodule is connected to the heat recovery water tank 19, for evaporating the hot water in the heat recovery water tank 19 and generating first steam. One end of the second evaporation submodule is connected to the heat recovery water tank 19 via the fourth heat exchanger 37, for exchanging heat with the heat recovery water tank 19 and generating second steam. The input end of the steam output submodule is respectively connected to the output end of the first evaporation submodule and the output end of the second evaporation submodule, and the output end of the steam output submodule is respectively connected to the distillation module 100 and the heating module 500, for transporting the steam generated by the first evaporation submodule and the second evaporation submodule to the distillation module 100 and the heating module 500, respectively.

[0073] Preferably, the first evaporation submodule includes a negative pressure flash tank 34 and a first ejector 40. One end of the negative pressure flash tank 34 is connected to the heat recovery water tank 19, for evaporating the hot water in the heat recovery water tank 19 and generating first steam. One end of the first ejector 40 is connected to the other end of the negative pressure flash tank 34, and the other end of the first ejector 40 is connected to the steam output submodule, for guiding and distributing the first steam generated by the negative pressure flash tank 34 to the steam output submodule.

[0074] Here, the negative pressure flash tank 34 evaporates the hot water in the heat recovery water tank 19 and generates steam, which is then directed into the steam output submodule via the first ejector 40. The negative pressure created by the negative pressure flash tank 34 facilitates the evaporation of the hot water in the heat recovery water tank 19, thereby achieving secondary recovery and conversion of thermal energy. This converts the heat in the hot water in the heat recovery water tank 19 into steam energy, enabling more efficient heat distribution and utilization.

[0075] Preferably, the second evaporation submodule includes a boiler feed water tank 36 and a steam distribution cylinder 38. The boiler feed water tank 36 exchanges heat with the heat recovery water tank 19 via a fourth heat exchanger 37, heating the cooling water within the tank before transferring it to the boiler 35 to generate secondary steam. One end of the steam distribution cylinder 38 is connected to the boiler 35 via a steam pipe, and the other end is connected to the steam output submodule, directing and distributing the secondary steam generated by the boiler 35 to the steam output submodule.

[0076] Here, the boiler feed water tank 36 exchanges heat with the heat recovery water tank 19 through the fourth heat exchanger 37, and the cold water in the boiler feed water tank 36 is heated by the fourth heat exchanger 37 and transported to the boiler 35. The steam in the boiler 35 is transmitted to the sub-cylinder 38 through the steam pipe. The sub-cylinder 38 serves as the steam distribution center, and transports the steam generated in the boiler 35 to the steam output sub-module according to the set pressure and flow rate to ensure that each subsequent module can obtain a stable and sufficient steam supply, realize the reasonable distribution and efficient utilization of thermal energy, and at the same time, the sub-cylinder 38 also has the function of buffering and stabilizing the steam pressure, ensuring the stable operation of the entire system. Preferably, the sub-cylinder 38 is connected to the boiler 35 and the steam output sub-module through a steam pipe to form a steam distribution network, and accurately controls the flow direction and flow of steam according to the needs of each module and the operating status of the system.

[0077] Preferably, the steam output submodule is the second ejector 41. Here, the second ejector 41 distributes the first steam and the second steam to different modules such as the grain-moistening water tank 25, the ground pot 1 and the heating hot water tank 32, so as to meet the heat demand of each module for steam, realize the precise distribution and efficient utilization of thermal energy, and at the same time drive the water flow through the flow of steam to further improve the transfer efficiency of thermal energy.

[0078] Preferably, the above-mentioned secondary heat recovery module 600 also includes a softener 39, which is connected to the output end 9 of the boiler water supply tank 36 to soften the water output by the boiler water supply tank 36, remove hardness ions such as calcium and magnesium in the water, prevent scaling and corrosion of the boiler water supply tank 36, the boiler 35 and related pipeline equipment, improve the thermal efficiency and operational safety of the boiler 35, extend the service life of the equipment, and ensure the long-term stable operation of the entire heat recovery and utilization system.

[0079] The heat energy recovery and utilization system for liquor distillation provided by the above-mentioned embodiment of the present invention is, during specific use: the steam generated by evaporation in the distillation module 100 is first cooled by the cooler 3 and the cooling tower 4, and the hot water after cooling is recovered by the heat recovery water tank 19; the heat recovery water tank 19 exchanges the received heat with the heat exchanger and sends it to the grain moistening module 300, the bathing heat exchange module 400, the heating module 500, etc., to realize multiple heat energy reuse; the secondary heat recovery module 600 is connected to the heat recovery water tank 19, and evaporates the hot water in the heat recovery water tank 19 through the negative pressure flash tank 34 to generate steam, and cooperates with the first ejector 40, the boiler 35, the steam cylinder 38 and the second ejector 41 to distribute the steam to other modules and the distillation module 100 for liquor distillation, thereby realizing the overall cycle and improving the heat energy utilization efficiency.

[0080] By integrating multiple heat recovery modules (heat recovery water tank 19, secondary heat recovery module 600), the waste heat recovery efficiency in the distillation process can be effectively improved, and heat can be recovered to the maximum extent and used in other production links, thus solving the problem of heat energy waste in the existing technology. By introducing automated control devices such as temperature sensors, electromagnetic three-way valves, and float valves, the water temperature, flow rate, and water level can be automatically adjusted according to the system's operating status, reducing manual intervention and accurately controlling system operation, significantly improving the system's degree of automation and operational reliability. In addition, the heat energy recovered by the system is not only used in the distillation process, but also meets the hot water needs of other links, achieving multiple recovery and utilization of heat energy, thereby improving energy utilization efficiency and reducing additional energy consumption.

[0081] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as within the scope of protection of the present invention.

Claims

1. A heat energy recovery and utilization system for liquor distillation, characterized in that: include: A distillation module, which is used for distilling liquor and generating hot steam during the distillation process; a cooling module, one end of which is in communication with the top of the distillation module and is used to recover and cool the hot steam generated by the distillation module; a primary heat recovery module, the primary heat recovery module being in communication with the cooling module and being used to recover the heat exchange water used for cooling in the cooling module; a secondary heat recovery module, wherein the input end of the secondary heat recovery module is in communication with the first output end of the primary heat recovery module, and the output end of the secondary heat recovery module is in communication with the input end of the distillation module, for recovering heat energy from the hot water in the primary heat recovery module and transferring the heat energy to the distillation module; and A heat energy secondary utilization module, wherein the input end of the heat energy secondary utilization module is respectively connected to the output end of the primary heat recovery module and the output end of the secondary heat recovery module.

2. The heat energy recovery and utilization system for liquor distillation according to claim 1, characterized in that: The distillation module comprises: a ground pot, the input end of the ground pot being in communication with the output end of the secondary heat recovery module; and A wine retort is arranged in the ground pot, and the upper end of the wine retort is connected to the cooling module.

3. The heat energy recovery and utilization system for liquor distillation according to claim 1, characterized in that: The cooling module comprises: A cooler, one end of which is connected to the top of the distillation module, and the cooler is connected to the primary heat recovery module through a hot water inlet pipe and a hot water outlet pipe; a three-stage hot water exchange is provided in the cooler; and a cooling tower, the cooling tower being connected to the cooler through a cooling water inlet pipe and a cooling water outlet pipe, and being used to cool the hot water in the cooler; Optionally, a temperature sensor is provided on the cooling water inlet pipe, and a first electromagnetic three-way valve and a water exchange water circulation pump are provided on the cooling water outlet pipe.

4. The heat energy recovery and utilization system for liquor distillation according to claim 3 is characterized in that: The cooling tower comprises: tower body; A cooling water tank is provided at the bottom of the tower body, and water in the cooling water tank is pumped into the top of the tower body for spraying through a spray water circulation pump; and A cooling water tank is arranged on one side of the cooling water tank and is connected to the cooling water tank, and is used to replenish water for the cooling water tank.

5. The heat energy recovery and utilization system for liquor distillation according to claim 3 is characterized in that: The first-level heat recovery module is a heat recovery water tank. A second electromagnetic three-way valve is provided on the hot water inlet pipe connecting the heat recovery water tank to the cooler, and a third electromagnetic three-way valve is provided on the hot water outlet pipe connecting the heat recovery water tank to the cooler.

6. The heat energy recovery and utilization system for liquor distillation according to claim 5, characterized in that: The thermal energy secondary utilization module includes: a grain conditioning module, the grain conditioning module being connected to the heat recovery water tank via a first heat exchanger, exchanging heat with hot water in the heat recovery water tank via the first heat exchanger to heat the cold water in the grain conditioning module, and the grain conditioning module being connected to an output end of the secondary heat recovery module; a bathing heat exchange module, the bathing heat exchange module being connected to the heat recovery water tank via a second heat exchanger; and A heating module is connected to the heat recovery water tank through a third heat exchanger, and the heating module is connected to the output end of the secondary heat recovery module.

7. The heat energy recovery and utilization system for liquor distillation according to claim 5, characterized in that: The secondary heat recovery module includes: a first evaporation submodule, one end of which is connected to the heat recovery water tank and is used to evaporate the hot water in the heat recovery water tank and generate first steam; a second evaporation submodule, one end of which is in communication with the heat recovery water tank via a fourth heat exchanger, for exchanging heat with the heat recovery water tank and generating second steam; and A steam output submodule, wherein the input end of the steam output submodule is respectively connected to the output end of the first evaporation submodule and the output end of the second evaporation submodule, and the output end of the steam output submodule is respectively connected to the distillation module and the heating module, and is used to transport the steam generated by the first evaporation submodule and the second evaporation submodule to the distillation module and the heating module respectively.

8. The heat energy recovery and utilization system for liquor distillation according to claim 7, characterized in that: The first evaporation submodule includes: a negative pressure flash tank, one end of which is connected to the heat recovery water tank and is used to evaporate the hot water in the heat recovery water tank and generate first steam; and A first ejector, one end of the first ejector is connected to the other end of the negative pressure flash tank, and the other end of the first ejector is connected to the steam output submodule, for guiding and distributing the first steam generated by the negative pressure flash tank to the steam output submodule.

9. The heat energy recovery and utilization system for liquor distillation according to claim 7, characterized in that: The second evaporation sub-module includes: a boiler water supply tank, which exchanges heat with the heat recovery water tank through the fourth heat exchanger and heats the cooling water therein before being transported to the boiler to generate second steam; and A steam sub-cylinder, one end of which is connected to the boiler through a steam pipe, and the other end of which is connected to the steam output sub-module, is used to guide and distribute the second steam generated by the boiler to the steam output sub-module.

10. The heat energy recovery and utilization system for liquor distillation according to claim 7, characterized in that: The steam output submodule is a second ejector.

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