Waste heat recovery type wine brewing distillation system and method

Abstract

The invention belongs to the field of wine brewing distillation, and provides a waste heat recovery type wine brewing distillation system and method. Comprising ground pot equipment, a wine retort, a precooler, a waste heat water pump, a heat accumulating type evaporator, a first refrigerant compressor, a first throttling valve, a steam generator, a middle tube plate, a condensation recovery device, a second throttling valve, a second refrigerant compressor, an evaporative condenser, a low-temperature fin type heat exchanger, a third throttling valve, a third refrigerant compressor, a softened water supply device and a first water supplementing valve. The system comprises a first water replenishing valve, a second water replenishing valve, a first steam supply valve, a second steam supply valve, a third steam supply valve, a wine receiver, a ground pot water valve and a grain moistening valve. Through the multiple waste heat recovery devices, full recovery and utilization of waste heat in the wine cooling process are achieved; steam is automatically generated through the steam generator, the wine retort and related devices, and input of external energy is reduced; the gradient cooling of the wine steam is realized through the precooler and the condensation recovery device, the wine cold output temperature is reduced, and the wine yield is improved.

Description

Technical Field

[0001] The present invention relates to the field of wine distillation, and in particular to a waste heat recovery type wine distillation system and method. Background Art

[0002] In the wine industry, wine distillation is an indispensable part, which uses steam heating to evaporate the lees, and then separates the base wine through cooling and condensation. However, in the traditional distillation process, steam mainly comes from the boiler, which not only consumes a lot of energy but also produces greenhouse gases. In the cooling stage, whether it is cold water or air cooling, the waste heat of cooling water and exhaust air is often as high as 50℃ or above. The energy waste and inefficiency in this process need to be solved urgently.

[0003] Patent CN 210314175 U provides a wine-making device, which combines a steam boiler, a wine distiller and a fermentation device to simplify the wine-making process; the setting of the wine distiller allows heat to be recycled, avoiding a large amount of heat energy waste; but the device still needs to produce steam in the form of a boiler, which is costly, and only uses water cooling to cool the wine. The waste heat of the cooling water is only partially used to replenish the boiler, and most of it still needs to be discharged back to the pool and cooled by other methods, and the waste heat is still very large. Patent CN11681436 A provides a high-temperature steam heat pump automatic wine distillation equipment. The high-temperature steam heat pump uses the principle of energy conversion to extract heat from a low-temperature heat source and raise it to a high temperature level suitable for distilling wine. Compared with traditional heating methods, it can achieve higher energy utilization efficiency and energy-saving effects; but the equipment is all cooled by water cooling, and the waste heat cascade is not fully utilized, the system operation efficiency is relatively low, and the system cannot operate without the waste heat of cold wine. Summary of the invention

[0004] In order to overcome the shortcomings of the prior art, the purpose of the present invention is to provide a waste heat recovery type wine distillation system and method, which can fully recover and utilize the waste heat in the wine cooling process through multiple sets of waste heat recovery devices; realize autonomous steam generation through a steam generator, a wine retort and related devices, and reduce the input of external energy; realize gradient cooling of wine vapor through a precooler and a condensation recovery device, reduce the wine cooling output temperature, and improve the wine yield.

[0005] To achieve the above object, the present invention provides the following solutions:

[0006] A waste heat recovery type wine distillation system, comprising: a ground pot device, a wine retort, a precooler, a waste heat water pump, a heat storage evaporator, a first refrigerant compressor, a first throttle valve, a steam generator, an intermediate tube plate, a condensation recovery device, a second throttle valve, a second refrigerant compressor, an evaporative condenser, a low-temperature fin heat exchanger, a third throttle valve, a third refrigerant compressor, a softened water supply device, a first water replenishment valve, a second water replenishment valve, a first steam supply valve, a second steam supply valve, a third steam supply valve, a wine receiver, a ground pot water valve, and a grain moistening valve; the steam generator is divided into a first steam sub-generator and a second steam sub-generator;

[0007] The intermediate tube plate is fixed between the first steam sub-generator and the second steam sub-generator; the wine steamer is arranged on the upper side of the ground pot equipment; the first inlet and the first outlet of the precooler are respectively connected to the wine steamer and the first inlet of the condensation recovery device; the second inlet and the second outlet of the precooler are respectively connected to the non-refrigerant side outlet of the thermal storage evaporator and the inlet of the waste heat pump; the refrigerant side inlet and the refrigerant side outlet of the thermal storage evaporator are respectively connected to the outlet of the first throttle valve and the inlet of the first refrigerant compressor; the refrigerant side inlet and the refrigerant side outlet of the first steam sub-generator are respectively connected to the outlet of the first refrigerant compressor and the inlet of the first throttle valve; the refrigerant side inlet and the refrigerant side outlet of the second steam sub-generator are respectively connected to the outlet of the second refrigerant compressor and the inlet of the second throttle valve; the high temperature cycle side inlet and the high temperature cycle side outlet of the evaporative condenser are respectively connected to the second outlet of the condensation recovery device and the inlet of the second refrigerant compressor; the low temperature cycle side inlet and the low temperature cycle side outlet of the evaporative condenser are respectively connected to the third refrigerant compressor. The outlet of the refrigerant compressor is connected to the inlet of the third throttle valve; the inlet and outlet of the low-temperature fin heat exchanger are respectively connected to the outlet of the third throttle valve and the inlet of the third refrigerant compressor; the outlet of the softened water supply device is respectively connected to the inlet of the first water replenishment valve and the inlet of the second water replenishment valve; the outlet of the first water replenishment valve is connected to the first inlet of the first steam sub-generator; the outlet of the second water replenishment valve is connected to the first inlet of the second steam sub-generator; the first outlet of the first steam sub-generator is connected to the inlet of the second steam supply valve; the first outlet of the second steam sub-generator is connected to the inlet of the first steam supply valve; the second outlet of the second steam sub-generator is respectively connected to the inlet of the ground pot water valve and the inlet of the grain moistening valve; the inlet of the third steam supply valve is respectively connected to the outlet of the first steam supply valve and the outlet of the second steam supply valve; the outlet of the third steam supply valve and the outlet of the ground pot water valve are both connected to the ground pot equipment; the first outlet and the second inlet of the condensate recovery device are respectively connected to the wine receiver and the outlet of the second throttle valve;

[0008] The ground pot equipment is used to provide a distillation heat source for the wine steamer; the wine steamer is used to distill wine mash; the precooler is used to cool the wine-containing vapor output by the wine steamer into high-temperature liquid wine; the waste heat water pump is used to pump the high-temperature water that has absorbed the heat of the wine vapor in the precooler to the heat storage evaporator; the heat storage evaporator is used to convert the pre-added first liquid refrigerant into a first high-temperature and low-pressure steam refrigerant by absorbing the heat of the high-temperature hot water pumped by the waste heat water pump, and store the heat; the first refrigerant compressor is used to compress the first high-temperature and low-pressure steam refrigerant into a first high-temperature and high-pressure refrigerant; the low-temperature fin heat exchanger is used to convert the pre-added third liquid refrigerant into a third high-temperature and low-pressure steam refrigerant by absorbing external heat; the evaporative condenser is used to convert the pre-added second liquid refrigerant into a third high-temperature and low-pressure steam refrigerant by absorbing the heat of the third high-temperature and high-pressure steam refrigerant delivered by the third refrigerant compressor or absorbing the heat in the condensation recovery device into a second high-temperature, low-pressure steam refrigerant; the steam generator is used to convert the pre-added cold water into water vapor or high-temperature hot water by absorbing the first high-temperature, high-pressure refrigerant or the second high-temperature, high-pressure refrigerant delivered by the second refrigerant compressor; the first steam supply valve is used to control the flow state of water vapor in the pipeline; the first throttle valve is used to throttle and reduce the pressure of the first high-pressure liquid refrigerant delivered by the steam generator; the softened water supply device is used to replenish cold water for the steam generator; the first water replenishment valve and the second water replenishment valve are used to control the water replenishment state of the second steam sub-generator and the first steam sub-generator respectively; the wine receiver is used to receive the base wine after the temperature is reduced by the condensation recovery device; the ground pot water valve is used to control the start and stop state of delivering hot water to the ground pot equipment; the grain moistening valve is used to control the start and stop state of delivering hot water to the outside world; the condensation recovery device is used to reduce the high-temperature liquid wine to a preset temperature.

[0009] Preferably, the condensation recovery device comprises: a spray sub-device, a wine cooling heat exchanger, a spray water pump, a spray pipeline, a liquid baffle, a liquid baffle support, a return plate, a fan, an air induction channel, a return pipe, and an air-cooled heat exchanger;

[0010] The condensation recovery device is divided into an air inlet side and a return air side; the spray sub-device is arranged at the inner top end of the air inlet side; the wine cooling heat exchanger is arranged directly below the spray sub-device; the spray pipeline is respectively connected to the spray sub-device and the spray water pump; the spray water pump is arranged at the inner bottom of the air inlet side; the liquid baffle plate support is arranged between the air inlet side and the return air side; the liquid baffle plate is fixed on the upper side of the liquid baffle plate support; the return plate is tiltedly placed between the top of the liquid baffle plate support and the side wall of the return air side; the fan is horizontally arranged inside the return air side; the air induced passage is fixed on the upper side of the fan; the air-cooled heat exchanger is fixed on the upper side of the air induced passage; the return pipe is attached to the side wall of the air induced passage; the return pipe is connected to the air-cooled heat exchanger;

[0011] Preferably, a waste heat recovery type wine distillation method comprises:

[0012] Setting the system operation mode; the system operation modes include: ground pot equipment water mode, distillation mode, steaming / steaming grain mode and grain moistening mode;

[0013] When the system operation mode is the ground pot equipment water mode, the third refrigerant compressor is started to transfer external heat to the evaporative condenser through the low-temperature fin heat exchanger;

[0014] Starting the second refrigerant compressor to transfer the heat absorbed by the evaporative condenser to the steam generator for heating cold water;

[0015] When the temperature of the hot water inside the steam generator reaches the user's requirement, the ground pot water valve is opened to replenish high-temperature hot water to the ground pot equipment;

[0016] When the system operation mode is the upper steaming / steaming grain mode, closing the ground pot water valve;

[0017] When the steam inside the first steam sub-generator reaches a user-preset temperature, the first steam supply valve is opened to provide steam for the wine retort;

[0018] When the steam in the second steam sub-generator reaches a user-preset temperature, the second steam supply valve is opened to provide steam for the wine retort;

[0019] adjusting the operating parameters of the second refrigerant compressor and the third refrigerant compressor according to the steam demand of the user;

[0020] When the system operation mode is the distillation mode, starting the waste heat water pump and the first refrigerant compressor to heat the cold water of the steam generator;

[0021] When the steam temperature in the steam generator reaches a user-preset temperature, the condensate recovery device is started, and the first steam supply valve or the second steam supply valve is opened;

[0022] When the temperature of the wine-containing steam inputted into the precooler reaches the preset wine steam output temperature standard, and when the wine steam inlet temperature of the precooler reaches the preset temperature, the low-temperature fin heat exchanger, the third refrigerant compressor and the third throttle valve are closed;

[0023] The wine cooling outlet temperature is set according to the ambient temperature, and the working parameters of the fan, the first refrigerant compressor and the second refrigerant compressor are regulated according to the wine cooling outlet temperature;

[0024] When the system operation mode is the grain moistening mode, closing the first steam supply valve and the second steam supply valve;

[0025] When the hot water temperature in the steam generator meets the grain moistening hot water temperature requirement, the grain moistening valve is opened to moisten the grain.

[0026] Preferably, it also includes:

[0027] When the liquid level in the first steam sub-generator is lower than a preset water replenishment level, opening the second water replenishment valve to replenish water;

[0028] When the liquid level in the second steam sub-generator is lower than the preset water replenishment level, the first water replenishment valve is opened to replenish water.

[0029] Preferably, when the steam temperature in the steam generator reaches a user-preset temperature, the condensate recovery device is started, and the first steam supply valve or the second steam supply valve is opened, including:

[0030] Using the spray water pump to deliver cold water to the spray device;

[0031] Using the spray device to spray cold water to the wine cooling heat exchanger to cool down the high-temperature liquid wine in the wine cooling heat exchanger to a cold wine target temperature, thereby obtaining base wine;

[0032] Using the fan to guide the hot and humid air in the receiving side to the air-cooled heat exchanger for cooling;

[0033] The condensed water generated by the air-cooled heat exchanger is guided to the receiving side by using the reflux pipe and the reflux plate.

[0034] The present invention discloses the following technical effects:

[0035] The present invention provides a waste heat recovery type wine distillation system and method. Through multiple groups of waste heat recovery devices, the problem of insufficient waste heat recovery in the existing system is solved, and the full recovery and utilization of waste heat in the wine cooling process is achieved; through a steam generator, a wine retort and related components, the problem of steam generation in the existing system relying on external heating is solved, and autonomous steam generation is achieved; through a precooler and a condensation recovery device, the problem of low wine yield in the existing system is solved, and gradient cooling of wine vapor and a lower wine cooling output temperature are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0037] Figure 1 A schematic diagram of the structure of a waste heat recovery wine distillation system provided in an embodiment of the present invention;

[0038] Figure 2 A schematic diagram of the structure of a condensation recovery device provided in an embodiment of the present invention;

[0039] Description of reference numerals:

[0040] 1- ground pot equipment, 2- wine steamer, 3- precooler, 4- waste heat pump, 5- heat storage evaporator, 6- first refrigerant compressor, 7- first throttle valve, 8- steam generator, 9- intermediate tube sheet, 10- condensation recovery device, 1001- spray sub-device, 1002- wine cooling heat exchanger, 1003- spray water pump, 1004- spray pipeline, 1005- liquid baffle, 1006- liquid baffle support, 1007- return plate, 1008- fan, 1009- air induction channel , 1010-reflux pipe, 1011-air-cooled heat exchanger, 11-second throttle valve, 12-second refrigerant compressor, 13-evaporative condenser, 14-low-temperature fin heat exchanger, 15-third throttle valve, 16-third refrigerant compressor, 17-softened water supply device, 18-first water supply valve, 19-second water supply valve, 20-first steam supply valve, 21-second steam supply valve, 22-third steam supply valve, 23-wine receiver, 24-ground pot water valve, 25-grain moistening valve. DETAILED DESCRIPTION

[0041] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] The purpose of the present invention is to provide a waste heat recovery type wine distillation system and method, which can fully recover and utilize the waste heat in the wine cooling process through multiple groups of waste heat recovery devices; realize autonomous steam generation through a steam generator, a wine retort and related devices, thereby reducing the input of external energy; realize gradient cooling of wine vapor through a precooler and a condensation recovery device, reduce the wine cooling output temperature, and improve the wine yield.

[0043] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0044] Figure 1 A schematic diagram of the structure of a waste heat recovery wine distillation system provided in an embodiment of the present invention is shown in FIG. Figure 1 As shown, the present invention provides a waste heat recovery type wine distillation system, comprising: a ground pot device 1, a wine retort 2, a precooler 3, a waste heat water pump 4, a heat storage evaporator 5, a first refrigerant compressor 6, a first throttle valve 7, a steam generator 8, an intermediate tube plate 9, a condensation recovery device 10, a second throttle valve 11, a second refrigerant compressor 12, an evaporative condenser 13, a low-temperature fin heat exchanger 14, a third throttle valve 15, a third refrigerant compressor 16, a softened water supply device 17, a first water supply valve 18, a second water supply valve 19, a first steam supply valve 20, a second steam supply valve 21, a third steam supply valve 22, a wine receiver 23, a ground pot water valve 24, and a grain moistening valve 25; the steam generator 8 is divided into a first steam sub-generator and a second steam sub-generator;

[0045] The intermediate tube plate 9 is fixed between the first steam sub-generator and the second steam sub-generator; the wine retort 2 is arranged on the upper side of the ground pot equipment 1; the first inlet and the first outlet of the precooler 3 are respectively connected to the wine retort 2 and the first inlet of the condensation recovery device 10; the second inlet and the second outlet of the precooler 3 are respectively connected to the non-refrigerant side outlet of the thermal storage evaporator 5 and the inlet of the waste heat pump 4; the refrigerant side inlet and the refrigerant side outlet of the thermal storage evaporator 5 are respectively connected to the outlet of the first throttle valve 7 and the inlet of the first refrigerant compressor 6; the refrigerant side of the first steam sub-generator is ... The refrigerant side inlet and the refrigerant side outlet are respectively connected to the outlet of the first refrigerant compressor 6 and the inlet of the first throttle valve 7; the refrigerant side inlet and the refrigerant side outlet of the second steam sub-generator are respectively connected to the outlet of the second refrigerant compressor 12 and the inlet of the second throttle valve 11; the high temperature cycle side inlet and the high temperature cycle side outlet of the evaporative condenser 13 are respectively connected to the second outlet of the condensation recovery device 10 and the inlet of the second refrigerant compressor 12; the low temperature cycle side inlet and the low temperature cycle side outlet of the evaporative condenser 13 are respectively connected to the outlet of the third refrigerant compressor 16 and The inlet of the third throttle valve 15 is connected; the inlet and outlet of the low-temperature fin heat exchanger 14 are respectively connected to the outlet of the third throttle valve 15 and the inlet of the third refrigerant compressor 16; the outlet of the softened water supply device 17 is respectively connected to the inlet of the first water replenishment valve 18 and the inlet of the second water replenishment valve 19; the outlet of the first water replenishment valve 18 is connected to the first inlet of the first steam sub-generator; the outlet of the second water replenishment valve 19 is connected to the first inlet of the second steam sub-generator; the first outlet of the first steam sub-generator is connected to the inlet of the second steam supply valve 21; The first outlet of the second steam sub-generator is connected to the inlet of the first steam supply valve 20; the second outlet of the second steam sub-generator is respectively connected to the inlet of the ground pot water valve 24 and the inlet of the grain moistening valve 25; the inlet of the third steam supply valve 22 is respectively connected to the outlet of the first steam supply valve 20 and the outlet of the second steam supply valve 21; the outlet of the third steam supply valve 22 and the outlet of the ground pot water valve 24 are both connected to the ground pot equipment 1; the first outlet and the second inlet of the condensation recovery device 10 are respectively connected to the wine receiver 23 and the outlet of the second throttle valve 11;

[0046] The ground pot equipment 1 is used to provide a distillation heat source for the wine steamer 2; the wine steamer 2 is used to distill wine mash; the precooler 3 is used to cool the wine-containing vapor output by the wine steamer 2 into high-temperature liquid wine; the waste heat water pump 4 is used to pump the high-temperature water that has absorbed the heat of the wine vapor in the precooler 3 to the heat storage evaporator 5; the heat storage evaporator 5 is used to convert the pre-added first liquid refrigerant into the first high-temperature low-pressure steam refrigerant by absorbing the heat of the high-temperature hot water pumped by the waste heat water pump 4, and store the heat; the first refrigerant compressor 6 is used to compress the first high-temperature low-pressure steam refrigerant into the first high-temperature high-pressure refrigerant; the low-temperature fin heat exchanger 14 is used to convert the pre-added third liquid refrigerant into the third high-temperature low-pressure steam refrigerant by absorbing the heat from the outside; the evaporative condenser 13 is used to convert the pre-added second liquid refrigerant into the third high-temperature low-pressure steam refrigerant by absorbing the heat of the third high-temperature high-pressure steam refrigerant delivered by the third refrigerant compressor 16 or absorbing the heat in the condensation recovery device 10 into a second high-temperature, low-pressure steam refrigerant; the steam generator 8 is used to convert the pre-added cold water into water vapor and high-temperature hot water by absorbing the first high-temperature, high-pressure refrigerant or the second high-temperature, high-pressure refrigerant delivered by the second refrigerant compressor 12; the first steam supply valve 20 is used to control the flow state of water vapor in the pipeline; the first throttle valve 7 is used to throttle and reduce the pressure of the first high-pressure liquid refrigerant delivered by the steam generator 8; the softened water supply device 17 is used to replenish cold water for the steam generator 8; the first water replenishment valve 18 and the second water replenishment valve 19 are used to control the water replenishment state of the second steam sub-generator and the first steam sub-generator respectively; the wine receiver 23 is used to receive the base wine after the condensation recovery device 10 has cooled down; the ground pot water valve 24 is used to control the start and stop state of delivering hot water to the ground pot equipment 1; the grain moistening valve 25 is used to control the start and stop state of delivering hot water to the outside world; the condensation recovery device 10 is used to reduce the high-temperature liquid wine to a preset temperature.

[0047] Specifically, the condensation recovery device 10 includes: a spray sub-device 1001, a wine cooling heat exchanger 1002, a spray water pump 1003, a spray pipeline 1004, a liquid baffle 1005, a liquid baffle support 1006, a return plate 1007, a fan 1008, an air induction channel 1009, a return pipe 1010, and an air cooling heat exchanger 1011;

[0048] The condensation recovery device 10 is divided into an air inlet side (with an air inlet channel) and a return air side; the spray sub-device 1001 is arranged at the inner top of the air inlet side; the wine cooling heat exchanger 1002 is arranged directly below the spray sub-device 1001; the spray pipeline 1004 is connected to the spray sub-device 1001 and the spray water pump 1003 respectively; the spray water pump 1003 is arranged at the inner bottom of the air inlet side; the liquid baffle plate support 1006 is arranged between the air inlet side and the return air side; the liquid baffle plate 100 5 is fixed on the upper side of the liquid retaining plate support 1006; the return plate 1007 is placed obliquely between the top of the liquid retaining plate support 1006 and the side wall of the return air side; the fan 1008 is horizontally arranged inside the return air side; the air induction channel 1009 is fixed on the upper side of the fan 1008; the air-cooled heat exchanger 1011 is fixed on the upper side of the air induction channel 1009; the return pipe 1010 is attached to the side wall of the air induction channel 1009; the return pipe 1010 is connected to the air-cooled heat exchanger 1011;

[0049] Furthermore, a waste heat recovery type wine distillation method comprises:

[0050] Set the system operation mode; the system operation modes include: ground pot equipment 1 water mode, distillation mode, steaming / steaming mode and grain moistening mode;

[0051] When the system operation mode is the water mode of the ground pot equipment 1, the third refrigerant compressor 16 is started to transfer the external heat to the evaporative condenser 13 through the low-temperature fin heat exchanger 14;

[0052] The second refrigerant compressor 12 is started to transfer the heat absorbed by the evaporative condenser 13 to the steam generator 8 for heating the cold water;

[0053] When the temperature of the hot water inside the steam generator 8 reaches the user's requirement, the ground pot water valve 24 is opened, and high-temperature hot water is added to the ground pot device 1;

[0054] When the system operation mode is the upper steaming / steaming grain mode, close the ground pot water valve 24;

[0055] When the steam inside the first steam sub-generator reaches the user's preset temperature, the first steam supply valve 20 is opened to provide steam for the wine retort 2;

[0056] When the steam inside the second steam sub-generator reaches the user's preset temperature, the second steam supply valve 21 is opened to provide steam for the wine retort 2;

[0057] Adjusting the operating parameters of the second refrigerant compressor 12 and the third refrigerant compressor 16 according to the user's steam demand;

[0058] When the system operation mode is the distillation mode, the waste heat pump 4 and the first refrigerant compressor 6 are started to heat the cold water of the steam generator 8;

[0059] When the steam temperature in the steam generator 8 reaches the user's preset temperature, the condensate recovery device 10 is started, and the first steam supply valve 20 or the second steam supply valve 21 is opened;

[0060] When the temperature of the wine-containing steam inputted into the precooler 3 reaches the preset wine steam output temperature standard, and when the wine steam inlet temperature of the precooler 3 reaches the preset temperature, the low-temperature fin heat exchanger 14, the third refrigerant compressor 16 and the third throttle valve 15 are closed;

[0061] The wine cooling outlet temperature is set according to the ambient temperature, and the working parameters of the fan 1008, the first refrigerant compressor 6 and the second refrigerant compressor 12 are regulated according to the wine cooling outlet temperature;

[0062] When the system operation mode is the grain moistening mode, the first steam supply valve 20 and the second steam supply valve 21 are closed;

[0063] When the temperature of the hot water in the steam generator 8 meets the grain moistening hot water temperature requirement, the grain moistening valve 25 is opened to moisten the grain.

[0064] Preferably, it also includes:

[0065] When the liquid level in the first steam sub-generator is lower than the preset water replenishment level, the second water replenishment valve 19 is opened to replenish water;

[0066] When the liquid level in the second steam sub-generator is lower than the preset water replenishment level, the first water replenishment valve 18 is opened to replenish water.

[0067] Further, when the steam temperature in the steam generator 8 reaches the user preset temperature, the condensation recovery device 10 is started, and the first steam supply valve 20 or the second steam supply valve 21 is opened, including:

[0068] Use the spray water pump 1003 to deliver cold water to the spray device;

[0069] Using a spray device to spray cold water to the wine cooling heat exchanger 1002 to cool down the high-temperature liquid wine in the wine cooling heat exchanger 1002 to the target temperature of the cold wine, thereby obtaining the base wine;

[0070] The fan 1008 is used to guide the hot and humid air in the receiving side to the air-cooled heat exchanger 1011 for cooling;

[0071] The condensed water generated by the air-cooled heat exchanger 1011 is guided to the receiving side by means of the return pipe 1010 and the return plate 1007 .

[0072] Specifically, the specific functions of each device in the system are described as follows:

[0073] The wine retort 2 is connected to the precooler 3 through a steam pipeline, and the wine vapor will become high-temperature liquid wine after passing through the precooler 3 and enter the condensation recovery device 10;

[0074] The water channel on the other side of the precooler 3 is connected to the heat storage evaporator 5 through the waste heat pump 4 and the pipeline to recover the high-temperature waste heat. The refrigerant evaporates in the heat storage evaporator 5 to cool the high-temperature hot water. The cooled hot water returns to the precooler 3 to repeatedly cool the wine vapor, while absorbing heat and transmitting it to the heat storage evaporator 5.

[0075] After the refrigerant evaporates in the heat storage evaporator 5, it is compressed into a high-temperature and high-pressure refrigerant by the first refrigerant compressor 6. The high-temperature and high-pressure refrigerant condenses in the steam generator 8 to release heat. At the same time, the hot water in the steam generator 8 absorbs heat and evaporates to generate steam above 100°C, which is transmitted to the bottom pot for distillation through the second steam supply valve 21.

[0076] The steam generator 8 can produce steam to heat the water of the ground pot device 1 to above 100°C through the steam pipeline, and can also provide hot water as water replenishment for the ground pot device 1 through the ground pot water valve 24, and can also provide hot water for moistening grain through the grain moistening valve 25;

[0077] The intermediate tube sheet 9 of the evaporator generator divides the steam generator 8 into two independent steam generating cylinders, one of which uses the waste heat of the preheater to produce steam, and the other uses the waste heat recovered by the condensation recovery device 10 to produce steam. The two parts can operate independently or simultaneously.

[0078] The softened water supply device 17 is connected to the steam generator 8 through relevant pipelines and the first water supply valve 18 and the second water supply valve 19, and water is supplied according to the liquid level of the steam generator 8;

[0079] The wine vapor is condensed by the precooler 3 and then enters the condensation recovery device 10 for secondary cooling. The liquid wine is cooled to the target temperature and then flows into the wine receiver 23;

[0080] A part of the cylinder of the steam generator 8 is connected to the second throttle valve 11 and the second refrigerant compressor 12 through a pipeline, the second refrigerant compressor 12 is connected to the evaporative condenser 13 through a pipeline, the evaporative condenser 13 is connected to the air-cooled heat exchanger 1011 in the condensation recovery device 10 through a pipeline, and the air-cooled heat exchanger 1011 in the condensation recovery device 10 is connected to the second throttle valve 11 through a pipeline to form a loop for recovering the waste heat of the hot air in the condensation recovery device 10 and transferring the heat to the steam generator 8 to produce steam;

[0081] The evaporative condenser 13 is connected to the third throttle valve 15 and the third refrigerant compressor 16 through pipelines, and the third throttle valve 15 and the third refrigerant compressor 16 are connected to the low-temperature fin heat exchanger 14 through pipelines to form a loop.

[0082] Furthermore, when the wine is distilled, the system is turned on (the system is turned on once a day). Since the distillation requires hot water and steam from the ground pot equipment 1 first, and then produces wine steam, when the system is turned on, the loop is operated first to provide the system with a heat source for producing hot water and steam. When the wine starts to cool, the loop stops running. In addition, when the sauce-flavored liquor is put into the sand and rough sand, there is no wine cooling process, and the cycle also needs to be turned on to provide the system with a heat source to produce hot water and steam. The condensation recovery device 10 plays the role of secondary waste heat recovery and secondary wine cooling, and its working principle is as follows:

[0083] The wine vapor is cooled and condensed in the precooler 3 and then enters the wine cooling heat exchanger 1002. The spray water pump 1003 transmits the bottom cooling water to the spray sub-device 1001 through the spray pipe 1004 for spraying. The wine cooling heat exchanger 1002 exchanges heat with the water mist and air sprayed by the spray sub-device 1001 to cool down to the target temperature of the cold wine. The water mist and air after spraying are mixed, and part of the water mist flows to the bottom of the condensation recovery device 10, and part of the water mist flows with the air through the liquid baffle plate and is introduced into the air induction channel 1009 through the fan 1008 and then enters the air-cooled heat exchanger 1011 for cooling and condensation, and then flows back to the bottom of the condensation recovery device 10 through the reflux pipe 1010. The heat in the air-cooled heat exchanger 1011 is transferred to the refrigerant, and the refrigerant transfers the heat to the steam generator 8 through the second refrigerant compressor 12.

[0084] Preferably, the system can realize automatic adjustment of the wine extraction temperature by controlling the frequency of the fan 1008 and the load of the refrigerant compressor, and realize the adjustment of different steam demand by adding and reducing the load of the refrigerant compressor. During operation, it is divided into ground pot equipment 1 water mode, grain moistening mode, distillation mode, upper steaming / steaming grain mode. In different operation modes, it runs automatically without manual adjustment.

[0085] Specifically, the system operation and control logic is as follows:

[0086] When the user turns on the system every day, the user first needs to replenish the water of the ground pot device 1, and selects the system to operate in the ground pot device 1 water mode: the third refrigerant compressor 16 is turned on, and absorbs heat from the external environment through the low-temperature fin heat exchanger 14, and transfers it to the evaporative condenser 13, and the second refrigerant compressor 12 is turned on, and the heat of the evaporative condenser 13 is transferred to the steam generator 8 to produce high-temperature hot water. When the high-temperature hot water in the steam generator 8 reaches the user's preset temperature, the ground pot water valve 24 is opened to replenish the ground pot device 1 with high-temperature hot water;

[0087] When the water in the ground pot equipment 1 meets the user's needs, the system switches to the upper steamer / steaming grain mode, the ground pot water valve 24 is closed, and when the steam in the steam generator 8 reaches the user's preset temperature, the first steam supply valve 20 is opened to supply steam to the wine steamer 2, and the second refrigerant compressor 12 and the third refrigerant compressor 16 are automatically adjusted according to the customer's steam demand;

[0088] After the wine distillation is completed, the system enters the distillation mode, the waste heat pump 4 is turned on, the first refrigerant compressor 6 is turned on, and when the steam in the steam generator 8 reaches the user's preset temperature, the second steam supply valve 21 is opened, the first steam supply valve 20, the second refrigerant compressor 12, and the second throttle valve 11 are maintained in the open state, the condensation recovery device 10 is turned on, the low-temperature fin heat exchanger 14 is closed, the third refrigerant compressor 16 is closed, and the third throttle valve 15 is closed; the system realizes automatic adjustment of the wine extraction temperature by controlling the frequency of the fan 1008 in the condensation recovery device 10, the load of the first refrigerant compressor 6, and the second refrigerant compressor 12, and realizes the adjustment of different steam demands by adding and reducing the load of the first refrigerant compressor 6 and the second refrigerant compressor 12. The system formulates different precooler 3 wine cooling outlet temperatures according to different ambient temperatures to ensure the efficient operation of the system and ensure the wine extraction temperature. For example: when the ambient temperature is above 25°C, the precooler 3 wine cooling outlet temperature is set to 60°C;

[0089] When the system enters the distillation mode, part of the waste heat that cannot be consumed in time is stored in the heat storage evaporator 5, and the heat is used to produce steam for the next steaming process. The ground pot water mode is turned on only when the steamer is steamed for the first time every day, and the rest of the time it runs in the steaming / steaming mode and distillation mode;

[0090] When steaming grains, the system is maintained in the steaming mode. When the steam in the steam generator 8 reaches the user's preset temperature, the first steam supply valve 20 is opened to supply steam to the wine steamer 2. The second refrigerant compressor 12 and the third refrigerant compressor 16 are automatically adjusted according to the customer's steam demand.

[0091] When steaming grain, feeding and moistening grain, the system enters the grain moistening mode, closes the first steam supply valve 20 and the second supply valve, and when the temperature in the steam generator 8 reaches the grain moistening hot water temperature requirement, opens the grain moistening valve 25 to provide hot water for the grain moistening process;

[0092] The first water replenishment valve 18 and the second water replenishment valve 19 are switched on and off to replenish water according to the liquid level in the steam generator 8 to maintain the liquid level in the steam generator 8 .

[0093] The beneficial effects of the present invention are as follows:

[0094] The present invention realizes full recovery and utilization of waste heat in the wine cooling process through multiple groups of waste heat recovery devices; realizes autonomous steam generation through a steam generator, a wine retort and related devices, reducing the input of external energy; realizes gradient cooling of wine vapor through a precooler and a condensation recovery device, reduces the wine cooling output temperature, and improves the wine yield.

[0095] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0096] The principles and implementation methods of the present invention are described in this article using specific examples. The description of the above embodiments is only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A waste heat recovery type wine distillation system, characterized in that: include: Ground pot equipment, wine steamer, precooler, waste heat water pump, heat storage evaporator, first refrigerant compressor, first throttle valve, steam generator, intermediate tube plate, condensate recovery device, second throttle valve, second refrigerant compressor, evaporative condenser, low-temperature fin heat exchanger, third throttle valve, third refrigerant compressor, softened water supply device, first water supply valve, second water supply valve, first steam supply valve, second steam supply valve, third steam supply valve, wine receiver, ground pot water valve, grain moistening valve; the steam generator is divided into a first steam sub-generator and a second steam sub-generator; The intermediate tube plate is fixed between the first steam sub-generator and the second steam sub-generator; the wine steamer is arranged on the upper side of the ground pot equipment; the first inlet and the first outlet of the precooler are respectively connected to the wine steamer and the first inlet of the condensation recovery device; the second inlet and the second outlet of the precooler are respectively connected to the non-refrigerant side outlet of the thermal storage evaporator and the inlet of the waste heat pump; the refrigerant side inlet and the refrigerant side outlet of the thermal storage evaporator are respectively connected to the outlet of the first throttle valve and the inlet of the first refrigerant compressor; the refrigerant side inlet and the refrigerant side outlet of the first steam sub-generator are respectively connected to the outlet of the first refrigerant compressor and the inlet of the first throttle valve; the refrigerant side inlet and the refrigerant side outlet of the second steam sub-generator are respectively connected to the outlet of the second refrigerant compressor and the inlet of the second throttle valve; the high temperature cycle side inlet and the high temperature cycle side outlet of the evaporative condenser are respectively connected to the second outlet of the condensation recovery device and the inlet of the second refrigerant compressor; the low temperature cycle side inlet and the low temperature cycle side outlet of the evaporative condenser are respectively connected to the third refrigerant compressor. The outlet of the refrigerant compressor is connected to the inlet of the third throttle valve; the inlet and outlet of the low-temperature fin heat exchanger are respectively connected to the outlet of the third throttle valve and the inlet of the third refrigerant compressor; the outlet of the softened water supply device is respectively connected to the inlet of the first water replenishment valve and the inlet of the second water replenishment valve; the outlet of the first water replenishment valve is connected to the first inlet of the first steam sub-generator; the outlet of the second water replenishment valve is connected to the first inlet of the second steam sub-generator; the first outlet of the first steam sub-generator is connected to the inlet of the second steam supply valve; the first outlet of the second steam sub-generator is connected to the inlet of the first steam supply valve; the second outlet of the second steam sub-generator is respectively connected to the inlet of the ground pot water valve and the inlet of the grain moistening valve; the inlet of the third steam supply valve is respectively connected to the outlet of the first steam supply valve and the outlet of the second steam supply valve; the outlet of the third steam supply valve and the outlet of the ground pot water valve are both connected to the ground pot equipment; the first outlet and the second inlet of the condensate recovery device are respectively connected to the wine receiver and the outlet of the second throttle valve; The ground pot equipment is used to provide a distillation heat source for the wine steamer; the wine steamer is used to distill wine mash; the precooler is used to cool the wine-containing vapor output by the wine steamer into high-temperature liquid wine; the waste heat water pump is used to pump the high-temperature water that has absorbed the heat of the wine vapor in the precooler to the heat storage evaporator; the heat storage evaporator is used to convert the pre-added first liquid refrigerant into a first high-temperature and low-pressure steam refrigerant by absorbing the heat of the high-temperature hot water pumped by the waste heat water pump, and store the heat; the first refrigerant compressor is used to compress the first high-temperature and low-pressure steam refrigerant into a first high-temperature and high-pressure refrigerant; the low-temperature fin heat exchanger is used to convert the pre-added third liquid refrigerant into a third high-temperature and low-pressure steam refrigerant by absorbing external heat; the evaporative condenser is used to convert the pre-added second liquid refrigerant into a third high-temperature and low-pressure steam refrigerant by absorbing the heat of the third high-temperature and high-pressure steam refrigerant delivered by the third refrigerant compressor or absorbing the heat in the condensation recovery device into a second high-temperature, low-pressure steam refrigerant; the steam generator is used to convert the pre-added cold water into water vapor and high-temperature hot water by absorbing the first high-temperature, high-pressure refrigerant or the second high-temperature, high-pressure refrigerant delivered by the second refrigerant compressor; the first steam supply valve is used to control the flow state of water vapor in the pipeline; the first throttle valve is used to throttle and reduce the pressure of the first high-pressure liquid refrigerant delivered by the steam generator; the softened water supply device is used to replenish cold water for the steam generator; the first water replenishment valve and the second water replenishment valve are used to control the water replenishment state of the second steam sub-generator and the first steam sub-generator respectively; the wine receiver is used to receive the base wine after the temperature is reduced by the condensation recovery device; the ground pot water valve is used to control the start and stop state of delivering hot water to the ground pot equipment; the grain moistening valve is used to control the start and stop state of delivering hot water to the outside world; the condensation recovery device is used to reduce the high-temperature liquid wine to a preset temperature.

2. A waste heat recovery wine distillation system according to claim 1, characterized in that: The condensation recovery device includes: a spray sub-device, a wine cooling heat exchanger, a spray water pump, a spray pipeline, a liquid baffle, a liquid baffle support, a return plate, a fan, an air induction channel, a return pipe, and an air-cooled heat exchanger; The condensation recovery device is divided into an air inlet side and a return air side; the spray sub-device is arranged at the inner top end of the air inlet side; the wine cooling heat exchanger is arranged directly below the spray sub-device; the spray pipeline is respectively connected to the spray sub-device and the spray water pump; the spray water pump is arranged at the inner bottom of the air inlet side; the liquid baffle plate support is arranged between the air inlet side and the return air side; the liquid baffle plate is fixed on the upper side of the liquid baffle plate support; the return plate is tilted between the top of the liquid baffle plate support and the side wall of the return air side; the fan is horizontally arranged inside the return air side; the air induced passage is fixed on the upper side of the fan; the air-cooled heat exchanger is fixed on the upper side of the air induced passage; the return pipe is attached to the side wall of the air induced passage; the return pipe is connected to the air-cooled heat exchanger.

3. A waste heat recovery type wine distillation method, applied to a waste heat recovery type wine distillation system according to any one of claims 1 and 2, characterized in that: The method comprises: Setting the system operation mode; the system operation modes include: ground pot equipment water mode, distillation mode, steaming / steaming grain mode and grain moistening mode; When the system operation mode is the ground pot equipment water mode, the third refrigerant compressor is started to transfer external heat to the evaporative condenser through the low-temperature fin heat exchanger; Starting the second refrigerant compressor to transfer the heat absorbed by the evaporative condenser to the steam generator for heating cold water; When the temperature of the hot water inside the steam generator reaches the user's requirement, the ground pot water valve is opened to replenish high-temperature hot water to the ground pot equipment; When the system operation mode is the upper steaming / steaming grain mode, closing the ground pot water valve; When the steam in the first steam sub-generator reaches a user-preset temperature, the first steam supply valve is opened to provide steam for the wine retort; When the steam in the second steam sub-generator reaches a user-preset temperature, the second steam supply valve is opened to provide steam for the wine retort; adjusting the operating parameters of the second refrigerant compressor and the third refrigerant compressor according to the steam demand of the user; When the system operation mode is the distillation mode, starting the waste heat water pump and the first refrigerant compressor to heat the cold water of the steam generator; When the steam temperature in the steam generator reaches a user-preset temperature, the condensate recovery device is started, and the first steam supply valve or the second steam supply valve is opened; When the temperature of the wine-containing steam inputted into the precooler reaches the preset wine steam output temperature standard, and when the wine steam inlet temperature of the precooler reaches the preset temperature, the low-temperature fin heat exchanger, the third refrigerant compressor and the third throttle valve are closed; The wine cooling outlet temperature is set according to the ambient temperature, and the working parameters of the fan, the first refrigerant compressor and the second refrigerant compressor are regulated according to the wine cooling outlet temperature; When the system operation mode is the grain moistening mode, closing the first steam supply valve and the second steam supply valve; When the hot water temperature in the steam generator meets the grain moistening hot water temperature requirement, the grain moistening valve is opened to moisten the grain.

4. A waste heat recovery wine distillation method according to claim 3, characterized in that: Also includes: When the liquid level in the first steam sub-generator is lower than a preset water replenishment level, opening the second water replenishment valve to replenish water; When the liquid level in the second steam sub-generator is lower than the preset water replenishment level, the first water replenishment valve is opened to replenish water.

5. A waste heat recovery wine distillation method according to claim 3, characterized in that: When the steam temperature in the steam generator reaches a user-preset temperature, the condensate recovery device is started, and the first steam supply valve or the second steam supply valve is opened, including: Using the spray water pump to deliver cold water to the spray device; Using the spray device to spray cold water to the wine cooling heat exchanger to cool down the high-temperature liquid wine in the wine cooling heat exchanger to a cold wine target temperature, thereby obtaining base wine; Using the fan to guide the hot and humid air in the receiving side to the air-cooled heat exchanger for cooling; The condensed water generated by the air-cooled heat exchanger is guided to the receiving side by using the reflux pipe and the reflux plate.

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