A heat exchange device for mash in the alcohol fermentation section

Abstract

The present invention provides a heat exchange device for mash in the alcohol fermentation section. The rotating assembly includes a bearing, a fan blade, a circular ring, a cylinder, a rotating ring and a blade. The bearing rotates on the side surface of the plate, the fan blade rotates on the outside of the bearing, the circular ring is arranged between the gaskets, the cylinders are distributed inside the circular ring, the rotating ring rotates around the outside of the cylinder, and the blade rotates on the side surface of the rotating ring. The bearing penetrates through one side of the plate, and the fan blade is inside the groove of the plate. The fan blade is in a stepped shape and rotates 360° inside the groove of the plate. The fan blade is on the side of the gasket close to the inner wall of the heat exchanger and is arranged inside the heat exchanger through the overall arrangement of the plates. This enables the heat exchanger to cool the mash by heat exchange during the flow of the mash, and can increase the flow rate of the mash inside the heat exchanger through the rotation of the blade and the fan blade, avoiding the situation where the flow rate of the mash is relatively slow during the heat exchange process of the existing heat exchanger.

Description

Technical Field

[0001] The present invention relates to the technical field of alcohol fermentation, and particularly relates to a heat exchange device for mash in the alcohol fermentation section. Background Art

[0002] Mash refers to the waste residue or waste liquid remaining after the fermentation of alcohol raw materials. The temperature of the mash is 80 - 82°C. Due to the high temperature, the loss of activated enzyme activity is relatively large. Therefore, a heat exchange device is required to cool down the mash. A heat exchanger is an energy-saving device that realizes heat transfer between materials among two or more fluids at different temperatures, enabling heat to be transferred from a fluid with a higher temperature to a fluid with a lower temperature, so that the fluid temperature reaches the specified index of the process flow to meet the requirements of the process conditions. This provides a technical inspiration for the heat exchange device.

[0003] The following problems have been found in the research on heat exchange devices:

[0004] The heat exchange device can usually only perform heat exchange and cooling on the mash. During alcohol production, the heat exchange device needs to perform heat exchange processing on a large amount of mash. However, an auxiliary flow mechanism is usually not provided inside the heat exchange device, resulting in the heat exchange device being able to only rely on the impact generated when the mash enters the inside to assist the flow of the mash inside the heat exchange device. As a result, the flow rate of the mash inside the heat exchange device is relatively slow, and the heat exchange device cannot quickly form heat exchange and cooling for the mash.

[0005] Currently, in the prior art, CN202211092882.X, a heat exchange component, a heat exchange core, and a heat exchange device, discloses a heat exchange device. In this invention, a second flow channel can match multiple first flow channels, and at least one flow blocking body is arranged in at least one second flow channel. The flow blocking body can play a role in disturbing the flow, increasing the speed of the heat exchange medium entering the first flow channel through the second flow channel in the second direction, enabling the heat exchange medium to be evenly distributed into multiple first flow channels after passing through the second flow channel, achieving the purpose of evenly distributing the heat exchange medium inside the heat exchange device, and improving the heat exchange performance of the heat exchange component.

[0006] The present invention can mainly solve the problem of the relatively slow flow rate of the mash inside the heat exchange device. Summary of the Invention

[0007] To solve the above technical problems, the present invention provides a heat exchange device for mash in the alcohol fermentation section to solve the problems described in the above background art.

[0008] The purpose and effect of a heat exchange device for mash in the alcohol fermentation section of the present invention are achieved by the following specific technical means: A heat exchange device for mash in the alcohol fermentation section includes a heat exchanger. A hot inlet pipe and a cold outlet pipe penetrate through both sides of the heat exchanger. A plate is arranged inside the heat exchanger, and the plates are arranged in a stepped and staggered manner inside the heat exchanger.

[0009] Furthermore, a condenser is provided inside the heat exchanger. The condenser is connected to the power circuit through a power cord. The mash liquid enters the interior of the heat exchanger through the hot inlet pipe and exits the interior of the heat exchanger through the cold outlet pipe.

[0010] Furthermore, a receiving groove is formed on the inner wall of the hot inlet pipe. The receiving grooves are arranged vertically and are located below the inner wall of the hot inlet pipe.

[0011] One end of the plate near the hot inlet pipe is provided with grooves. There are 3 - 4 grooves, which penetrate the side of the plate. Gaskets are provided inside the grooves. The gaskets are connected to the condenser circuit through the plate. A rotating assembly for increasing the flow rate is provided on the inner side of the plate near the grooves.

[0012] Furthermore, the gasket is wavy. Every three gaskets form a group, and each group of gaskets is arranged vertically inside the groove.

[0013] Furthermore, the rotating assembly includes a bearing, a fan blade, a circular ring, a cylinder, a rotating ring, and a blade. The bearing rotates on the side of the plate, the fan blade rotates on the outside of the bearing, the circular ring is arranged between the gaskets, the cylinders are distributed inside the circular ring, the rotating ring rotates around the outside of the cylinder, and the blade rotates on the side of the rotating ring.

[0014] Furthermore, the bearing penetrates through one side of the plate. The fan blade is inside the groove of the plate. The fan blade is stepped and rotates 360° inside the groove of the plate. The fan blade is on the side of the gasket close to the inner wall of the heat exchanger.

[0015] Furthermore, the circular ring is inclined at 25 - 45°. There are 3 - 5 circular rings arranged horizontally at one end of the gasket. There are 4 - 6 cylinders, and the cylinders uniformly exchange heat on the outside of the circular ring.

[0016] Furthermore, the diameter of the rotating ring is twice the diameter of the cylinder. The blade is in a semi - circular ring shape, and the angle of the semi - circular ring is 180°. The blade and the rotating ring are set in a matching manner.

[0017] Furthermore, a flow - guiding frame is provided at the upper end inside the hot inlet pipe. Liners swing on both sides at the lower end of the flow - guiding frame. A filter ring is provided at the lower end of the receiving groove inside the hot inlet pipe.

[0018] Furthermore, the flow - guiding frame is conical. The lower end of the flow - guiding frame is vertically corresponding to the upper end of the filter ring. There are holes penetrating through the flow - guiding frame from top to bottom. The diameter of the hole at the upper end of the flow - guiding frame is 0.5 - 1 cm.

[0019] Furthermore, the liner is in a horizontal "V" shape. Every two liners form a group. The upper end of the liner is vertically corresponding to the hole at the lower end of the flow - guiding frame. The thickness of the liner is 0.2 - 0.4 cm, and the liner is made of rubber.

[0020] Furthermore, a groove is provided on the inner side of the filter ring, and filter holes penetrate through the interior of the filter ring. The diameter of the filter holes is 0.2 - 0.5 cm, there are multiple filter holes, and the filter holes are spaced 2 - 4 cm from the lower end of the groove on the inner side of the filter ring.

[0021] Beneficial effects:

[0022] 1. The mash first drops to the upper end of the diversion rack. Since the upper end of the lining plate is vertically corresponding to the holes at the lower end of the diversion rack, a small part of the mash drops through the holes inside the diversion rack to the upper end of the lining plate. Due to the downward impact of the mash, the lining plate swings obliquely at the lower end of the diversion rack. By using the oblique swing of the lining plate, the situation of blockage in the spaced area between the diversion rack and the filter ring can be avoided, and at the same time, the flow rate of the mash inside the hot inlet pipe can be increased, avoiding the situation where the flow rate of the mash is relatively slow due to the diversion rack being arranged inside the hot inlet pipe;

[0023] 2. Since the lower end of the diversion rack is vertically corresponding to the upper end of the filter ring, through the shape setting of the diversion rack, the diversion rack can assist most of the mash to flow downward into the interior of the filter ring. The mash can be discharged to the outside of the filter ring through the filter holes inside the filter ring, and the filter holes are spaced 2 - 4 cm from the lower end of the groove on the inner side of the filter ring, so that there is a 2 - 4 cm space inside the filter ring that cannot be discharged through the filter holes, which can collect the impurities inside the mash. Thus, this heat exchange device can collect some impurities inside the mash through the hot inlet pipe after the mash enters the pipeline;

[0024] 3. After the mash enters the interior of the heat exchanger through the hot inlet pipe, the mash first impacts the surface of the plate at one end inside the heat exchanger, and then the mash impacts one side of the fan blade. Since the fan blade is in a stepped shape, the fan blade can drive the bearing to rotate inside the plate. When the fan blade rotates, it can assist the mash to flow to the outside of the gasket, and can increase the flow rate of the mash inside the heat exchanger, increasing the speed of the mash flowing into the cold outlet pipe;

[0025] 4. Some of the mash flows to the outside of the gasket assisted by the fan blade, and some of the mash first impacts the outside of the gasket. Since there is a circular ring between the gaskets, when the mash enters the outside of the gasket, the mash impacts one end of the blade. The blade rotates on the outside of the cylinder through the rotating ring. Since the rotating ring surrounds the outside of the cylinder, when the blade drives the rotating ring to rotate, by using the cylindrical shape of the cylinder, the blade can drive the rotating ring to rotate 360° on the outside of the cylinder by its own rotational inertia. The blade can rotate 360° on the outside of the cylinder through the rotating ring. By using the rotation of the blade, the flow rate of the mash outside the gasket can be increased, and the situation where impurities inside the mash are easily accumulated between the gaskets due to the small gap between the gaskets can be avoided;

[0026] 5. The plate is arranged as a whole inside the heat exchanger, enabling the heat exchanger to cool the mash during its flow by heat exchange, and increasing the flow rate of the mash inside the heat exchanger through the rotation of the blades and fan blades, thus avoiding the situation where the flow rate of the mash is relatively slow during the heat exchange process of the existing heat exchanger. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0028] Figure 2 It is a schematic diagram of the partial structure of the heat exchanger of the present invention.

[0029] Figure 3 It is a schematic diagram of the plate structure of the present invention.

[0030] Figure 4 It is a schematic diagram of the fan blade structure of the present invention.

[0031] Figure 5 It is a schematic diagram of the gasket explosion of the present invention.

[0032] Figure 6 It is a schematic diagram of the structure of the ring assembly of the present invention.

[0033] Figure 7 For the present invention Figure 6 Schematic diagram of the rotation of the transfer ring.

[0034] Figure 8 It is a schematic diagram of the cross-sectional structure of the hot inlet pipe of the present invention.

[0035] Figure 9 It is a schematic diagram of the structure of the guide frame of the present invention.

[0036] Figures 1-9 Among them, the corresponding relationship between the component names and the drawing numbers is as follows:

[0037] 1 - Heat exchanger, 101 - Hot inlet pipe, 102 - Cold outlet pipe, 2 - Plate, 201 - Bearing, 202 - Fan blade, 3 - Gasket, 301 - Ring, 302 - Cylinder, 303 - Rotating ring, 304 - Blade, 4 - Guide frame, 401 - Liner plate, 5 - Filter ring. Detailed Embodiment

[0038] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0039] As shown in the attached Figure 1 To attachedFigure 9 As shown in: Example 1

[0040] A heat exchange device for mash in the alcohol fermentation section, including a heat exchanger 1. A hot inlet pipe 101 and a cold outlet pipe 102 penetrate through both sides of the heat exchanger 1. Inside the heat exchanger 1, there are plate fins 2, and the plate fins 2 are arranged in a stepped and staggered manner inside the heat exchanger 1;

[0041] Among them: For the heat exchanger 1, a condenser is provided inside the heat exchanger 1. The condenser is connected to the power supply circuit through a power cord. The mash enters the inside of the heat exchanger 1 through the hot inlet pipe 101 and exits the inside of the heat exchanger 1 through the cold outlet pipe 102;

[0042] For the hot inlet pipe 101, a receiving groove is opened on the inner wall of the hot inlet pipe 101. The receiving grooves are arranged vertically and are located below the inner wall of the hot inlet pipe 101;

[0043] For the plate fin 2, one end of the plate fin 2 close to the hot inlet pipe 101 is provided with grooves. There are 3 - 4 grooves, and the grooves penetrate through the side surface of the plate fin 2. Gaskets 3 are provided inside the grooves. The gaskets 3 are connected to the condenser circuit through the plate fin 2. A rotating component for increasing the flow rate is provided on the inner side of the plate fin 2 close to the grooves;

[0044] One end of the plate fin 2 close to the hot inlet pipe 101 is provided with grooves. When the mash enters the inside of the heat exchanger 1 through the hot inlet pipe 101, the mash can enter the inside of the grooves;

[0045] The plate fins 2 are arranged in a stepped and staggered manner inside the heat exchanger 1, which is convenient for the mash to fully contact the side surface of the plate fins 2 when flowing inside the heat exchanger 1;

[0046] The gaskets 3 are connected to the condenser circuit through the plate fin 2. The condenser can cool down the gaskets 3 and the plate fin 2, so that when the mash passes by the outside of the plate fin 2, heat exchange and cooling can be formed;

[0047] For the gasket 3, the gasket 3 is wavy. Every three gaskets 3 form a group, and each group of gaskets 3 is arranged vertically inside the grooves;

[0048] The gasket 3 is wavy. Every three gaskets 3 form a group. Through the shape setting of the gasket 3, when the mash enters the grooves of the plate fin 2, the contact area between the gasket 3 and the mash can be increased, so as to facilitate the gasket 3 to quickly cool the mash;

[0049] Wherein: The mash liquid enters the interior of the heat exchanger 1 through the hot inlet pipe 101. A groove is provided at one end of the plate 2 close to the hot inlet pipe 101. When the mash liquid enters the interior of the heat exchanger 1 through the hot inlet pipe 101, the mash liquid can enter the interior of the groove. Since the gasket 3 is connected to the condenser circuit through the plate 2, the gasket 3 and the plate 2 can be cooled by the condenser. Thus, when the mash liquid passes by the outside of the plate 2, heat exchange and cooling can be formed. Embodiment 2

[0050] Refer to the attached Figures 1-7 It can be known from the reference to the attached instructions of the specification that the difference between Embodiment 2 and Embodiment 1 is that the rotating assembly includes a bearing 201, a fan blade 202, a circular ring 301, a cylinder 302, a rotating ring 303 and a blade 304. The bearing 201 rotates on the side surface of the plate 2, the fan blade 202 rotates on the outside of the bearing 201, the circular ring 301 is arranged between the gaskets 3, the cylinders 302 are distributed on the inner side of the circular ring 301, the rotating ring 303 rotates around the outside of the cylinder 302, and the blade 304 rotates on the side surface of the rotating ring 303.

[0051] Among them: For the bearing 201 and the fan blade 202, the bearing 201 penetrates through one side of the plate 2, the fan blade 202 is located inside the groove of the plate 2, the fan blade 202 is in a stepped shape, the fan blade 202 rotates 360° inside the groove of the plate 2, and the fan blade 202 is located on the side of the gasket 3 close to the inner wall of the heat exchanger 1.

[0052] The fan blade 202 is located on the side of the gasket 3 close to the inner wall of the heat exchanger 1. When the fan blade 202 rotates, it can assist the mash liquid to flow to the outside of the gasket 3 and can also assist the mash liquid to flow to the other side of the plate 2.

[0053] After the mash liquid enters the interior of the heat exchanger 1 through the hot inlet pipe 101, the mash liquid impacts one side of the fan blade 202. Since the fan blade 202 is in a stepped shape, the fan blade 202 can drive the bearing 201 to rotate inside the plate 2. The principle of the rotation of a waterwheel can be referred to.

[0054] For the circular ring 301, the circular ring 301 is inclined at 25 - 45°, there are 3 - 5 circular rings 301 arranged horizontally at one end of the gasket 3, 4 - 6 cylinders 302 are provided, and the cylinders 302 are evenly heat-exchanged on the outside of the circular ring 301.

[0055] Since the rotating ring 303 surrounds the outside of the cylinder 302, when the blade 304 drives the rotating ring 303 to rotate, by utilizing the cylindrical shape of the cylinder 302, the blade 304 can drive the rotating ring 303 to rotate 360° around the outside of the cylinder 302 by its own rotational inertia.

[0056] For the rotating ring 303 and the blade 304, the diameter of the rotating ring 303 is twice the diameter of the cylinder 302, the blade 304 is in a semi-circular ring shape, the angle of the semi-circular ring is 180°, and the blade 304 and the rotating ring 303 are set in a matching manner.

[0057] The diameter of the swivel ring 303 is twice that of the cylinder 302, which can reduce the contact area between the swivel ring 303 and the cylinder 302 when the swivel ring 303 rotates, thereby reducing the frictional force between the cylinder 302 and the swivel ring 303;

[0058] When the mash enters the outside of the gasket 3, the mash impacts one end of the blade 304. The blade 304 rotates outside the cylinder 302 through the swivel ring 303. Refer to the attached Figure 7 as shown;

[0059] Among them: After the mash enters the interior of the heat exchanger 1 through the hot inlet pipe 101, the mash first impacts the surface of the plate 2 at one end inside the heat exchanger 1, and then the mash impacts one side of the fan blade 202. Since the fan blade 202 is stepped, the fan blade 202 can drive the bearing 201 to rotate inside the plate 2. When the fan blade 202 rotates, it can assist the mash to flow to the outside of the gasket 3, and can increase the flow rate of the mash inside the heat exchanger 1, increasing the speed of the mash flowing into the cold outlet pipe 102;

[0060] Part of the mash flows to the outside of the gasket 3 assisted by the fan blade 202, while part of the mash first impacts the outside of the gasket 3. Since there is a circular ring 301 between the gaskets 3, when the mash enters the outside of the gasket 3, the mash impacts one end of the blade 304. The blade 304 rotates outside the cylinder 302 through the swivel ring 303. Since the swivel ring 303 surrounds the outside of the cylinder 302, when the blade 304 drives the swivel ring 303 to rotate, using the cylindrical shape of the cylinder 302, the blade 304 can drive the swivel ring 303 to rotate 360° outside the cylinder 302 by its own rotational inertia. The blade 304 can rotate 360° outside the cylinder 302 through the swivel ring 303. By using the rotation of the blade 304, the flow rate of the mash outside the gasket 3 can be increased, and it can avoid the situation that impurities in the mash are easily accumulated between the gaskets 3 due to the small gap between the gaskets 3;

[0061] By arranging the plates 2 as a whole inside the heat exchanger 1, this type of heat exchanger 1 can exchange heat and cool the mash during the flow of the mash, and can increase the flow rate of the mash inside the heat exchanger 1 through the rotation of the blade 304 and the fan blade 202, avoiding the situation that the flow rate of the mash is relatively slow during the heat exchange process of the existing heat exchanger 1;

[0062] Example 3: Refer to the attached Figure 1 、 8 and 9, it can be known that the difference between Example 3 and Examples 1 and 2 is that a guide frame 4 is provided at the upper end inside the hot inlet pipe 101, and lining plates 401 swing on both sides at the lower end of the guide frame 4, and a filter ring 5 is provided at the lower end of the receiving groove inside the hot inlet pipe 101;

[0063] Among them: the flow guide frame 4, the flow guide frame 4 is conical, the lower end of the flow guide frame 4 is vertically corresponding to the upper end of the filter ring 5, there are holes running through the flow guide frame 4 from top to bottom inside, and the diameter of the hole at the upper end of the flow guide frame 4 is 0.5 - 1 cm;

[0064] The lower end of the flow guide frame 4 is vertically corresponding to the upper end of the filter ring 5. Through the shape setting of the flow guide frame 4, the flow guide frame 4 can assist the mash to flow downward into the inside of the filter ring 5;

[0065] There are holes running through the flow guide frame 4 from top to bottom inside, and the diameter of the hole at the upper end of the flow guide frame 4 is 0.5 - 1 cm, avoiding the situation that a large amount of mash enters the inside of the heat exchanger 1 through the inside of the hole due to the relatively large diameter of the hole at the upper end of the flow guide frame 4;

[0066] The lining plate 401, the lining plate 401 is in a horizontal "V" shape, every two lining plates 401 form a group, the upper end of the lining plate 401 is vertically corresponding to the hole at the lower end of the flow guide frame 4, the thickness of the lining plate 401 is 0.2 - 0.4 cm, and the lining plate 401 is made of rubber;

[0067] The thickness of the lining plate 401 is 0.2 - 0.4 cm, and the lining plate 401 is made of rubber, which facilitates the lining plate 401 to swing obliquely at the lower end of the flow guide frame 4;

[0068] The upper end of the lining plate 401 is vertically corresponding to the hole at the lower end of the flow guide frame 4. Part of the mash drops to the upper end of the lining plate 401 through the inside of the hole of the flow guide frame 4. Due to the downward impact of the mash, the lining plate 401 swings obliquely at the lower end of the flow guide frame 4;

[0069] The filter ring 5, there is a groove on the inner side of the filter ring 5, there are filter holes running through the inside of the filter ring 5, the diameter of the filter holes is 0.2 - 0.5 cm, there are multiple filter holes, and the filter holes are spaced 2 - 4 cm from the lower end of the groove on the inner side of the filter ring 5;

[0070] The filter holes are spaced 2 - 4 cm from the lower end of the groove on the inner side of the filter ring 5, so that there is a 2 - 4 cm interval inside the filter ring 5 that cannot be discharged through the filter holes, and it can collect the impurities inside the mash;

[0071] Among them: the mash first drops to the upper end of the flow guide frame 4. Since the upper end of the lining plate 401 is vertically corresponding to the hole at the lower end of the flow guide frame 4, a small part of the mash drops to the upper end of the lining plate 401 through the inside of the hole of the flow guide frame 4. Due to the downward impact of the mash, the lining plate 401 swings obliquely at the lower end of the flow guide frame 4. By using the oblique swing of the lining plate 401, the situation of blockage in the interval space between the flow guide frame 4 and the filter ring 5 can be avoided, and at the same time, the flow rate of the mash inside the hot inlet pipe 101 can be increased, avoiding the situation that the flow rate of the mash is relatively slow due to the flow guide frame 4 being arranged inside the hot inlet pipe 101;

[0072] Since the lower end of the flow guide frame 4 is vertically corresponding to the upper end of the filter ring 5, through the shape setting of the flow guide frame 4, the flow guide frame 4 can assist most of the mash to flow downward into the interior of the filter ring 5, and the mash can be discharged to the outside of the filter ring 5 through the filter holes inside the filter ring 5. The filter holes are spaced 2-4 cm from the lower end of the inner groove of the filter ring 5, so that there is a 2-4 cm interval inside the filter ring 5 that cannot be discharged through the filter holes, which can collect the impurities inside the mash. Thus, after the mash enters the pipeline, this heat exchange device can collect some of the impurities inside the mash through the hot inlet pipe 101.

Claims

1. A heat exchange device for mash in the alcohol fermentation section, comprising a heat exchanger, characterized in that: The heat exchanger is penetrated by a hot inlet pipe and a cold outlet pipe on both sides. Inside the heat exchanger, there are plate fins which are arranged in a stepped and staggered manner inside the heat exchanger; A condenser is provided inside the heat exchanger. The condenser is connected to the power circuit through a power cord. The mash enters the inside of the heat exchanger through the hot inlet pipe and exits the inside of the heat exchanger through the cold outlet pipe; The hot inlet pipe has a receiving groove opened on the inner wall of the hot inlet pipe. The receiving grooves are arranged vertically and are located below the inner wall of the hot inlet pipe; The plate fin has a groove opened at one end close to the hot inlet pipe. There are 3 - 4 grooves, which penetrate the side surface of the plate fin. Gaskets are provided inside each groove. The gaskets are connected to the condenser circuit through the plate fin. A rotating assembly for increasing the flow rate is provided inside the plate fin close to the groove; The rotating assembly includes a bearing, a fan blade, a ring, a cylinder, a rotating ring and a blade. The bearing rotates on the side surface of the plate fin. The fan blade rotates on the outside of the bearing. The ring is arranged between the gaskets. The cylinders are distributed inside the ring. The rotating ring rotates around the outside of the cylinder. The blade rotates on the side surface of the rotating ring; The bearing penetrates through one side of the plate fin. The fan blade is inside the groove of the plate fin. The fan blade is in a stepped shape and rotates 360° inside the groove of the plate fin. The fan blade is on the side of the gasket close to the inner wall of the heat exchanger; The ring is inclined at 25 - 45°. There are 3 - 5 rings arranged horizontally at one end of the gasket. There are 4 - 6 cylinders, and the cylinders uniformly exchange heat on the outside of the ring; The rotating ring and the blade, the diameter of the rotating ring is twice the diameter of the cylinder. The blade is in a semi - circular ring shape, and the angle of the semi - circular ring is 180°. The blade and the rotating ring are provided in a matching manner.

2. The heat exchange device for mash in the alcohol fermentation section according to claim 1, characterized in that: The gasket is in a wavy shape. Every three gaskets form a group, and each group of gaskets is arranged vertically inside the groove; 3. The heat exchange device for mash in the alcohol fermentation section according to claim 1, characterized in that: A flow - guiding frame is provided at the upper end inside the hot inlet pipe. Lining plates swing on both sides at the lower end of the flow - guiding frame. A filter ring is provided at the lower end of the receiving groove inside the hot inlet pipe; 4. The heat exchange device for mash in the alcohol fermentation section according to claim 3, characterized in that: The flow - guiding frame is in a conical shape. The lower end of the flow - guiding frame is perpendicularly corresponding to the upper end of the filter ring. There are holes penetrating through the flow - guiding frame from top to bottom. The diameter of the hole at the upper end of the flow - guiding frame is 0.5 - 1 cm; 5. The heat exchange device for mash in the alcohol fermentation section according to claim 3, characterized in that: The lining plate is in a horizontal "V" shape. Every two lining plates form a group. The upper end of the lining plate is perpendicularly corresponding to the hole at the lower end of the flow - guiding frame. The thickness of the lining plate is 0.2 - 0.4 cm; 6. The heat exchange device for mash in the alcohol fermentation section according to claim 3, characterized in that: The inner side of the filter ring has a groove opened. Filter holes penetrate through the inside of the filter ring. The diameter of the filter holes is 0.2 - 0.5 cm. There are multiple filter holes, and the filter holes are spaced 2 - 4 cm from the lower end of the groove on the inner side of the filter ring.

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