An equipment for recovering waste heat from steamed grains and a method for waste heat recovery

Abstract

The present invention provides a device for recovering waste heat from steamed grains, including a wine steamer; the waste heat recovery device is arranged on one side of the wine steamer; an air-cooled condenser, the air-cooled condenser is arranged on one side of the waste heat recovery device; a water pump, the water pump is arranged on one side of the waste heat recovery device; a hot water tank, the hot water tank is arranged on one side of the water pump. The present invention provides a device for recovering waste heat from steamed grains and a recovery method thereof. When the wine steamer is used for steaming wine, the waste heat recovery device can recover the heat generated during the operation of the wine steamer and perform cooling treatment. The air-cooled condenser and the waste heat recovery device can convert the heat into flowing wine, which can reduce the waste of liquor. Moreover, the recovery of heat during processing can reduce the situation that the hot air emitted from the device burns people's gas in the environment. By using the water pump and the hot water tank in cooperation with the waste heat recovery device, the water condensed by the waste heat recovery device can be collected and reused.

Description

Technical Field

[0001] The present invention relates to the field of recovering waste heat from liquor steaming, and particularly to a waste heat recovery device for steaming grains and a recovery method thereof. Background Art

[0002] Chinese liquor has a compound fragrance mainly composed of esters, using koji and yeast as saccharifying and fermenting agents, and using starchy raw materials, which are brewed through steaming, saccharification, fermentation, distillation, aging and blending.

[0003] When steaming liquor in Chinese liquor brewing, a steamer is needed to assist the operation.

[0004] During the process of steaming liquor with the existing steamer, when using an air-cooled condenser, a large amount of heat is discharged into the atmosphere by the air-cooled condenser fan during the process of condensing into liquor, and the heat is wasted, resulting in a large amount of energy loss.

[0005] Therefore, it is necessary to provide a waste heat recovery device for steaming grains and a recovery method thereof to solve the above technical problems. Summary of the Invention

[0006] The present invention provides a waste heat recovery device for steaming grains and a recovery method thereof, which solves the problem that the heat generated during the process of steaming liquor by a steamer cannot be recycled.

[0007] To solve the above technical problems, a waste heat recovery device for steaming grains provided by the present invention includes a steamer;

[0008] A waste heat recovery device, which is arranged on one side of the steamer;

[0009] An air-cooled condenser, which is arranged on one side of the waste heat recovery device;

[0010] A water pump, which is arranged on one side of the waste heat recovery device;

[0011] A hot water tank, which is arranged on one side of the water pump.

[0012] Preferably, the top of the hot water tank is connected to one side of the waste heat recovery device through a circulating water pipe, the steamer is fixedly connected to the waste heat recovery device through a steam pipe, one side of the waste heat recovery device is connected to the input end of the water pump through a circulating water pipe, and the output end of the water pump is fixedly connected to one side of the hot water tank through a circulating water pipe.

[0013] Preferably, a fixing component is arranged inside the steamer, a cleaning device is arranged below the fixing component inside the steamer, a cooling and cleaning device is arranged on one side of the surface of the steamer, and the fixing component includes a connecting plate, and fixing buckles are arranged on one side of the surface of the connecting plate.

[0014] Preferably, the cleaning device includes a motor, one end of the motor output shaft is fixedly connected to a rotating rod through a coupling, and both sides of the surface of the rotating rod are fixedly connected to a plurality of connecting rods in sequence from top to bottom.

[0015] Preferably, one end of the connecting rod is fixedly connected to a concave cleaning plate, a fixing seat is provided on the surface of the connecting rod, a collecting box is provided on the surface of the fixing seat, and a guide plate is fixedly connected to the bottom of the concave cleaning plate.

[0016] Preferably, a scraper is fixedly connected to the bottom of the concave cleaning plate, and a rectangular plate is fixedly connected to the bottom end of the rotating rod.

[0017] Preferably, the cooling and cleaning device includes a water tank, a pump body is fixedly installed on the surface of the water tank, the input end of the pump body is connected to a water inlet pipe, the output end of the pump body is connected to a water outlet pipe, one side of the water outlet pipe is fixedly connected to a connecting pipe through a connecting piece, and one end of the connecting pipe has a cleaning pipe.

[0018] Preferably, cooling chambers are provided on the left and right sides of the inner wall and the bottom of the inner wall of the wine retort, and one end of the water outlet pipe is fixedly connected to one side of the cooling chamber.

[0019] Preferably, a Z-shaped connecting pipe is provided on one side of the cooling chamber, one end of the Z-shaped connecting pipe is fixedly connected to the water tank, and a valve is provided inside the water outlet pipe.

[0020] A method for recovering waste heat from grain steaming equipment comprises the following steps:

[0021] S1: When steaming wine in the wine retort: When the wine vapor generated during the wine retort processing passes through the steam pipe, before entering the air-cooled condenser, it first enters the waste heat recovery device to fully recover the heat, and then enters the air-cooled condenser to be cooled into wine liquid;

[0022] S2: Temperature control: The waste heat recovery device is a shell-and-tube heat exchanger. The initial temperature of the wine vapor entering the equipment is 90-95°C. The circulating water flows through the tubes, condensing the wine vapor into a mixture of liquid and part of the gas, which is now 70-80°C. The circulating water temperature is then heated to 30-40°C.

[0023] S3: Waste heat treatment of wine distillation: The wine vapor mixture passes through the outlet of the waste heat recovery device and then enters the air-cooled condenser. The load of the air-cooled condenser is also greatly reduced. The wine vapor in the air-cooled condenser is controlled by the fan to reduce the temperature of the wine liquid to the same as the ambient temperature, and the wine is then drained into the wine container.

[0024] Compared with related technologies, the grain steaming waste heat recovery device and recovery method provided by the present invention have the following beneficial effects:

[0025] The present invention provides a device for recovering waste heat from steaming grains and a method for recovering the same. When the wine steamer is used for steaming wine, the waste heat recovery device can recover the heat generated during the operation of the wine steamer and perform cooling treatment. By using an air-cooled condenser in cooperation with the waste heat recovery device, the heat can be converted into flowing wine, which can reduce the waste of liquor. Moreover, the recovery of heat during processing can reduce the situation where the hot air emitted from the device causes scalding of personnel in the environment. The waste heat recovery device operates by using a water pump in cooperation with a hot water tank, and can collect and reuse the water condensed by the waste heat recovery device. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 FIG. 6 is a schematic structural diagram of a first embodiment of a device for recovering waste heat from steaming grains and a method for recovering the same provided by the present invention;

[0027] Figure 2 FIG. 10 is a schematic structural diagram of a second embodiment of a device for recovering waste heat from steaming grains and a method for recovering the same provided by the present invention;

[0028] Figure 3 is Figure 2 a schematic structural diagram of the cleaning device shown in FIG. 16;

[0029] Figure 4 is Figure 2 a schematic diagram of the cooling and cleaning device shown in FIG. 22;

[0030] Figure 5 is Figure 3 a schematic perspective structural diagram of the cleaning device shown in FIG. 28;

[0031] Figure 6 is Figure 2 a schematic structural diagram of the interior of the waste heat recovery device shown in FIG. 34;

[0032] Figure 7 is Figure 6 a schematic structural diagram of the scraping device shown in FIG. 40;

[0033] Figure 8 is Figure 7 a schematic perspective structural diagram of the scraping device shown in FIG. 46.

[0034] Reference numerals in the figures:

[0035] 1. Rice steamer, 2. Waste heat recovery device, 3. Air-cooled condenser, 4. Water pump, 5. Hot water tank, 6. Fixing component, 61. Connecting plate, 62. Fixing buckle, 7. Cleaning device, 71. Motor, 72. Rotating rod, 73. Connecting rod, 74. Concave cleaning plate, 75. Fixed seat, 76. Collection box, 77. Deflector, 78. Scraper, 79. Rectangular plate, 8. Cooling and cleaning device, 81. Water tank, 82. Pump body, 83. Water inlet pipe, 84. Z-shaped connecting pipe, 85. Water outlet pipe, 86. Connecting pipe, 87. Cleaning pipe, 88. Cooling chamber, 89. Valve, 9. Condensing pipe, 10. Scraping device, 101. Hydraulic rod, 102. Movable plate, 103. Moving rod, 104. Annular scraping block. Detailed implementation mode

[0036] The present invention will be further described below in conjunction with the drawings and the implementation mode.

[0037] First embodiment

[0038] Please refer to Figure 1 , where Figure 1 is a schematic structural diagram of the first embodiment of a steamed grain waste heat recovery device and its recovery method provided by the present invention. A steamed grain waste heat recovery device and its recovery method include a rice steamer 1;

[0039] A waste heat recovery device 2, the waste heat recovery device 2 is arranged on one side of the rice steamer 1;

[0040] An air-cooled condenser 3, the air-cooled condenser 3 is arranged on one side of the waste heat recovery device 2;

[0041] A water pump 4, the water pump 4 is arranged on one side of the waste heat recovery device 2;

[0042] A hot water tank 5, the hot water tank 5 is arranged on one side of the water pump 4.

[0043] The top of the hot water tank 5 is connected to one side of the waste heat recovery device 2 through a circulating water pipe, the rice steamer 1 is fixedly connected to the waste heat recovery device 2 through a wine steam pipe, one side of the waste heat recovery device 2 is connected to the input end of the water pump 4 through a circulating water pipe, and the output end of the water pump 4 is fixedly connected to one side of the hot water tank 5 through a circulating water pipe.

[0044] The equipment is used to recover the heat therein, which is used to heat water and then for brewing water, making full use of energy, avoiding waste, and achieving considerable economic benefits. There is a steam inlet on one side of the surface of the rice steamer 1, a connection port is arranged at the bottom of the rice steamer 1 and a switch is provided, and a drainage pipe is arranged on one side of the air-cooled condenser 3 to facilitate the outflow of the liquor, and a detector is arranged on one side of the hot water tank 5.

[0045] A grain steaming waste heat recovery device and a recovery method thereof, comprising the following steps:

[0046] S1: When steaming wine in the wine retort: When the wine vapor generated during the wine retort processing passes through the steam pipe, before entering the air-cooled condenser, it first enters the waste heat recovery device to fully recover the heat, and then enters the air-cooled condenser to be cooled into wine liquid;

[0047] S2: Temperature control: The waste heat recovery device is a shell-and-tube heat exchanger. The initial temperature of the wine vapor entering the equipment is 90-95°C. The circulating water flows through the tubes, condensing the wine vapor into a mixture of liquid and part of the gas, which is now 70-80°C. The circulating water temperature is then heated to 30-40°C.

[0048] S3: Waste heat treatment of wine distillation: The wine vapor mixture passes through the outlet of the waste heat recovery device and then enters the air-cooled condenser. The load of the air-cooled condenser is also greatly reduced. The wine vapor in the air-cooled condenser is controlled by the fan to reduce the temperature of the wine liquid to the same as the ambient temperature, and the wine is then drained into the wine container.

[0049] The working principle of the grain steaming waste heat recovery device and recovery method provided by the present invention is as follows:

[0050] During the wine steaming process in the wine steamer 1, the wine vapor passes through the steam pipe and enters the air-cooled condenser 3, first enters the waste heat recovery device 2 to fully recover the heat, and then enters the air-cooled condenser 3 to be cooled into wine liquid.

[0051] Waste heat recovery device 2 is a shell and tube heat exchanger. The wine vapor flows through the shell side, and the temperature before entering is about 90-95℃. The circulating water flows through the tube side. The two fully exchange heat inside it, and the wine vapor can be condensed into liquid and part of the gas, which is a mixture of about 70-80℃ at this time. The circulating water temperature can be heated by 30-40℃.

[0052] The wine vapor mixture passes through the outlet of the waste heat recovery device 2 and then enters the air-cooled condenser. The load of the air-cooled condenser is also greatly reduced. The wine vapor is in the air-cooled condenser 3. By controlling the air volume of the fan, the wine liquid temperature is reduced to the same as the ambient temperature, and the wine is flowed into the wine container.

[0053] Compared with related technologies, the grain steaming waste heat recovery device and recovery method provided by the present invention have the following beneficial effects:

[0054] The present invention provides a device for recovering the waste heat of steaming grains and a method for recovering the waste heat. When the wine steamer 1 is steaming wine, the waste heat recovery device 2 can recover the heat generated during the operation of the wine steamer 1 and perform cooling treatment. The air-cooled condenser 3 and the waste heat recovery device 2 can convert the heat into flowing wine, which can reduce the waste of liquor. Moreover, the recovery of heat during processing can reduce the heat dissipation of the device in the environment and prevent personnel from being scalded by the gas. The waste heat recovery device 2 operates in cooperation with the water pump 4 and the hot water tank 5 to collect the water condensed by the waste heat recovery device 2 and reuse it.

[0055] Second Embodiment

[0056] Please refer to Figure 2 、 Figure 3 、 Figure 4 、 Figure 5 、 Figure 6 、 Figure 7 and Figure 8 Based on a device for recovering the waste heat of steaming grains and a method for recovering the waste heat provided in the first embodiment of the present application, the second embodiment of the present application proposes another device for recovering the waste heat of steaming grains and a method for recovering the waste heat. The second embodiment is merely a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the separate implementation of the first embodiment.

[0057] Specifically, the difference between the device for recovering the waste heat of steaming grains and a method for recovering the waste heat provided in the second embodiment of the present application is that a fixing component 6 is arranged inside the wine steamer 1, a cleaning device 7 is arranged below the fixing component 6 inside the wine steamer 1, and a cooling and cleaning device 8 is arranged on one side of the surface of the wine steamer 1. The fixing component 6 includes a connecting plate 61, and fixing buckles 62 are arranged on one side of the surface of the connecting plate 61.

[0058] A filter screen is arranged inside the connecting plate 61 to facilitate the flow of gas. The fixing buckle 62 includes an L-shaped fixing plate. A fixing bolt is arranged inside the L-shaped fixing plate. Blocks are fixedly connected to both sides of the surface of the fixing bolt. Slots adapted to the blocks are formed inside both the L-shaped fixing plate and the connecting plate 61. Using the fixing buckle 62 can facilitate the disassembly and installation of the motor 71. One side of the fixing buckle 62 is fixedly connected to a connecting rope, and one end of the connecting rope is fixedly connected to the surface of the connecting plate 61. Using the connecting rope can prevent the fixing buckle 62 from being lost.

[0059] The cleaning device 7 includes a motor 71. One end of the output shaft of the motor 71 is fixedly connected to a rotating rod 72 through a coupling. A plurality of connecting rods 73 are fixedly connected to both sides of the surface of the rotating rod 72 in sequence from top to bottom.

[0060] A fixed seat is fixedly installed on the surface of the motor 71, which can facilitate the operation of cooperating with the fixed buckle 62.

[0061] One end of the connecting rod 73 is fixedly connected with a concave cleaning plate 74. A fixed seat 75 is arranged on the surface of the connecting rod 73. A collection box 76 is arranged on the surface of the fixed seat 75. A diversion plate 77 is fixedly connected to the bottom of the concave cleaning plate 74.

[0062] A concave groove adapted to the concave cleaning plate 74 is formed inside the diversion plate 77. Three groups of connecting rods 73 and concave cleaning plates 74 are sequentially arranged on the surface of the rotating rod 72 from top to bottom. Fixed seats 75 and collection boxes 76 are arranged on the surfaces of the second and third groups of connecting rods 73 and concave cleaning plates 74. A limiting block is arranged on the surface of the fixed seat 75. A limiting groove adapted to the limiting block is formed at the bottom of the collection box 76. A limiting bolt is arranged on one side of the collection box 76. The limiting bolt can be used to fix between the collection box 76 and the fixed seat 75.

[0063] A scraper 78 is fixedly connected to the bottom of the concave cleaning plate 74. A rectangular plate 79 is fixedly connected to the bottom end of the rotating rod 72.

[0064] A baffle is fixedly connected between the diversion plate 77 and the concave cleaning plate 74, which can prevent the concave cleaning plate 74 from blocking the raw material residues during cleaning and prevent the residues from splashing randomly.

[0065] The temperature reduction and cleaning device 8 includes a water tank 81. A pump body 82 is fixedly installed on the surface of the water tank 81. The input end of the pump body 82 is communicated with a water inlet pipe 83. The output end of the pump body 82 is communicated with a water outlet pipe 85. One side of the water outlet pipe 85 is fixedly connected with a connecting pipe 86 through a connector. One end of the connecting pipe 86 is provided with a cleaning pipe 87.

[0066] A water injection pipe is arranged on one side of the water tank 81 to facilitate the injection of clean water. One end of the connecting pipe 86 penetrates through one side of the surface of the wine steamer 1 and extends into the interior of the wine steamer 1. A valve 89 is also arranged inside the connecting pipe 86. A plurality of water spray holes are sequentially formed on the surface of the cleaning pipe 87 from left to right. The cleaning pipe 87 is composed of a communicating pipe and a water delivery pipe. The communicating pipe is arranged inside the rotating rod 72, and the water delivery pipe is arranged inside the connecting rod 73.

[0067] Temperature reduction cavities 88 are formed on both the left and right sides and the bottom of the inner wall of the wine steamer 1. One end of the water outlet pipe 85 is fixedly connected with one side of the temperature reduction cavity 88.

[0068] The interior of the wine steamer 1 can be cleaned by using the water tank 81, the pump body 82, the water inlet pipe 83, the connecting pipe 86 and the cleaning pipe 87.

[0069] A Z-shaped connecting pipe 84 is provided on one side of the cooling chamber 88 , one end of the Z-shaped connecting pipe 84 is fixedly connected to the water tank 81 , and a valve 89 is provided inside the water outlet pipe 85 .

[0070] A condenser 9 is provided inside the waste heat recovery device 2, and a scraping device 10 is provided on the surface of the condenser 9 and inside the waste heat recovery device 2. The scraping device 10 includes a hydraulic rod 101, one end of the hydraulic rod 101 is fixedly connected to a movable plate 102, one side of the movable plate 102 is fixedly connected to a moving rod 103, and one end of the moving rod 103 is fixedly connected to an annular scraper block 104.

[0071] The movable plate 102 and the annular scraper 104 are sleeved on the surface of the condenser 9 and can move on the surface of the condenser 9. Multiple groups of movable rods 103 and annular scrapers 104 are evenly arranged on the surface of the movable plate 102, and the surface of the movable plate 102 is composed of multiple groups of movable rods 103 of different lengths and annular scrapers 104 of the same size. The use of multiple groups of movable rods 103 of different lengths and annular scrapers 104 of the same size can adapt to the scraping of liquid on the surface of condenser tubes 9 of different lengths.

[0072] The working principle of the grain steaming waste heat recovery device and recovery method provided by the present invention is as follows:

[0073] When the wine steamer 1 is working, the water tank 81 is first filled with clean water. After it is filled with clean water, the pump body 82 is started to transport the clean water inside the water tank 81 to the inside of the water outlet pipe 85 through the water inlet pipe 83. When the clean water is transported to the inside of the water outlet pipe 85, the valve 89 inside the connecting pipe 86 is closed. After the clean water is transported to the inside of the water outlet pipe 85, the pressure of the pump body 82 is used to transport the clean water inside the water outlet pipe 85 to the inside of the cooling chamber 88. When the clean water is transported to the inside of the cooling chamber 88, the wine steamer 1 can be cooled. When the cooling chamber 88 is filled with clean water, it is transported to the inside of the water tank 81 again through the Z-shaped connecting pipe 84 on the other side of the cooling chamber 88.

[0074] When cleaning the residual raw materials inside the wine retort 1 after the processing is completed, the cleaning device 7 is first installed on the surface of the connecting plate 61 and fixed by the fixing buckle 62. After the cleaning device 7 is fixed, the motor 71 is started to drive the rotating rod 72 to rotate. When the rotating rod 72 rotates, the connecting rods 73 on both sides of the surface drive the concave cleaning plate 74 to clean the inner wall of the wine retort 1. When the concave cleaning plate 74 cleans the inner wall of the wine retort 1, the valve 89 of the water outlet pipe 85 is closed and the pump body 82 is started to transport the clean water inside the water tank 81 to the inside of the connecting pipe 86 through the water inlet pipe 83. After the clean water is transported to the inside of the connecting pipe 86, the pressure generated by the pump body 82 transports the clean water inside the connecting pipe 86 to the inside of the cleaning pipe 87 and cleans the inner wall of the wine retort 1.

[0075] When the concave cleaning plate 74 cleans the inner wall of the wine cooker 1, the raw material residues generated are conveyed to the inside of the collection box 76 through the guide plate 77 and can be centrally cleaned. When the rotating rod 72 rotates, it also drives the rectangular plate 79 to clean the raw material residues at the bottom of the inner wall of the wine cooker 1 and collect them later.

[0076] When there is liquid remaining on the surface of the condensing pipe 9 inside the waste heat recovery device 2, the hydraulic rod 101 is activated to push the movable plate 102 to move. When the movable plate 102 moves, the annular scraping block 104 is driven by the moving rod 103 to scrape the liquid on the surface of the condensing pipe 9 respectively.

[0077] Compared with the related technologies, a grain steaming waste heat recovery device and its recovery method provided by the present invention have the following beneficial effects:

[0078] The present invention provides a grain steaming waste heat recovery device and its recovery method. When the wine cooker 1 is working, the clear water in the water tank 81 is conveyed to the inside of the cooling chamber 88 through the water outlet pipe 85 by the pump body 82, which is beneficial to blocking the heat generated on the inner wall of the wine cooker 1 and can reduce the increase in the temperature of the outer surface of the wine cooker 1 when the temperature is too high. It is beneficial to prevent the operator from being scalded by accidentally touching the outer surface of the wine cooker 1. The fixed component 6 arranged inside the wine cooker 1 is used in cooperation with the cleaning device 7, which can facilitate the disassembly and installation of the cleaning device 7. The collection box 76 arranged on the surface of the connecting rod 73 is used in cooperation with the concave cleaning plate 74 to remove and collect the raw materials remaining on the inner wall of the wine cooker 1, which is also beneficial to reducing the later cleaning of the raw materials and can prevent the raw materials after use from being mixed with fresh raw materials and causing the deterioration of the wine. The guide plate 77 is used in cooperation with the concave cleaning plate 74 to facilitate the raw materials scraped by the concave cleaning plate 74 to accurately fall into the inside of the collection box 76.

[0079] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. All equivalent structural or equivalent process transformations made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, are equally included in the patent protection scope of the present invention.

Claims

1. A steam grain waste heat recovery device, characterized in that, Including wine steamer; A waste heat recovery device, the waste heat recovery device is arranged on one side of the wine retort; An air-cooled condenser, the air-cooled condenser being arranged on one side of the waste heat recovery device; a water pump, the water pump being arranged on one side of the waste heat recovery device; a hot water tank, the hot water tank being arranged on one side of the water pump; The wine retort is provided with a fixing assembly inside, a cleaning device is provided inside the wine retort and below the fixing assembly, a cooling and cleaning device is provided on one side of the surface of the wine retort, the fixing assembly includes a connecting plate, and a fixing buckle is provided on one side of the surface of the connecting plate; The cleaning device includes a motor, one end of the motor output shaft is fixedly connected to a rotating rod through a coupling, and a plurality of connecting rods are fixedly connected to both sides of the rotating rod surface in sequence from top to bottom; One end of the connecting rod is fixedly connected to a concave cleaning plate, a surface of the connecting rod is provided with a fixing seat, a surface of the fixing seat is provided with a collection box, and the bottom of the concave cleaning plate is fixedly connected to a guide plate; The bottom of the concave cleaning plate is fixedly connected to a scraper, and the bottom end of the rotating rod is fixedly connected to a rectangular plate; The cooling and cleaning device includes a water tank, a pump body is fixedly mounted on the surface of the water tank, the input end of the pump body is connected to a water inlet pipe, the output end of the pump body is connected to a water outlet pipe, one side of the water outlet pipe is fixedly connected to a connecting pipe via a connecting piece, and one end of the connecting pipe is provided with a cleaning pipe; The left and right sides of the inner wall of the wine retort and the bottom of the inner wall are provided with cooling chambers, and one end of the water outlet pipe is fixedly connected to one side of the cooling chamber; A Z-shaped connecting pipe is provided on one side of the cooling chamber, one end of the Z-shaped connecting pipe is fixedly connected to the water tank, and a valve is provided inside the water outlet pipe.

2. The steam grain waste heat recovery device according to claim 1, wherein, The top of the hot water tank is connected to one side of the waste heat recovery device through a circulating water pipe, the wine steamer is fixedly connected to the waste heat recovery device through a wine steam pipe, one side of the waste heat recovery device is connected to the input end of the water pump through a circulating water pipe, and the output end of the water pump is fixedly connected to one side of the hot water tank through a circulating water pipe.

3. A method for recovering waste heat from grain steaming, applied to the waste heat recovery device of claim 1, comprising the following steps: S1: When steaming wine in the wine retort: When the wine vapor generated during the wine retort processing passes through the steam pipe, before entering the air-cooled condenser, it first enters the waste heat recovery device to fully recover the heat, and then enters the air-cooled condenser to be cooled into wine liquid; S2: Temperature control: The waste heat recovery device is a shell-and-tube heat exchanger. The initial temperature of the wine vapor entering the equipment is 90-95°C. The circulating water flows through the tubes, condensing the wine vapor into a mixture of liquid and part of the gas, which is now 70-80°C. The circulating water temperature is then heated to 30-40°C. S3: Waste heat treatment of wine distillation: The wine vapor mixture passes through the outlet of the waste heat recovery device and then enters the air-cooled condenser. The load of the air-cooled condenser is also greatly reduced. The wine vapor in the air-cooled condenser is controlled by the fan to reduce the temperature of the wine liquid to the same as the ambient temperature, and the wine is then drained into the wine container.

Images