A saccharification heat recovery device for beer production

Abstract

The utility model belongs to heat recovery technical field discloses a kind of saccharification heat recovery devices for beer production, including first conduit, second conduit is connected in the first conduit upper end, heat exchange groove is opened in the first conduit inside, and circulation heat exchange pipe is arranged in heat exchange groove inside, the first heat exchange plate is arranged in the first conduit inside.The saccharification heat recovery device for beer production, circulation heat exchange pipe adopts spiral winding design, increase the contact area with steam, when saccharification steam flows through first conduit, liquid flowing in circulation heat exchange pipe can fully absorb steam heat, ensure higher basic heat exchange efficiency;Annular array distribution's first heat exchange plate further expands the contact area with steam, circular ring and equidistant array distribution's second heat exchange plate is in contact with first heat exchange plate, realize the secondary promotion of contact area, under the joint action of multiple structures, heat recovery efficiency is greatly improved, and cooperate with heat preservation structure to further reduce heat loss.

Description

Technical Field

[0001] This utility model relates to the field of heat recovery technology, specifically a saccharification heat recovery device for beer production. Background Technology

[0002] In beer production, saccharification is a critical energy-consuming stage. During saccharification, raw materials such as malt are mixed with hot water and subjected to enzymatic hydrolysis at specific temperatures, generating a large amount of high-temperature steam. This steam not only carries a significant amount of heat energy, but its direct release into the environment would not only result in severe energy waste but also potentially cause problems such as increased ambient temperature and thermal pollution in the brewery, failing to meet current industrial development requirements for green production and energy conservation. Existing heat recovery devices generally suffer from problems such as low heat exchange efficiency and large heat loss. Traditional heat exchange structures have limited contact area with high-temperature steam, resulting in insufficient heat absorption and difficulty in improving heat recovery efficiency.

[0003] Therefore, we propose a saccharification heat recovery device for beer production to solve the problems mentioned above. Utility Model Content

[0004] The purpose of this invention is to provide a saccharification heat recovery device for beer production, in order to solve the problems of low heat exchange efficiency and heat loss in existing heat recovery devices mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a saccharification heat recovery device for beer production, comprising a first conduit: The upper end of the first conduit is connected to the second conduit. A heat exchange groove is opened inside the first conduit, and a circulating heat exchange tube is installed inside the heat exchange groove. A first heat exchange plate is installed inside the first conduit, and a second heat exchange plate passes through the first heat exchange plate. The lower end of the first conduit is provided with a flow guide groove, and a collection tube runs through the flow guide groove.

[0006] Preferably, both ends of the first conduit and the second conduit are connected to flanges, and the first conduit and the second conduit are connected by flanges and fixed by two sets of flange bolts.

[0007] By adopting the above technical solution, a stable and reliable connection between the first conduit and the second conduit can be ensured by using two sets of flanges. When the two sets of flanges are connected, a sealing ring is used to improve the sealing effect.

[0008] Preferably, the outer wall of the first conduit is made of heat-insulating material, the circulating heat exchange tube is spirally arranged inside the heat exchange tank, the upper end of the circulating heat exchange tube is connected to a circulating liquid inlet pipe, the lower end of the circulating heat exchange tube is connected to a circulating liquid outlet pipe, and both the circulating liquid inlet pipe and the circulating liquid outlet pipe extend to the outside of the first conduit.

[0009] By adopting the above technical solution, when the steam generated during beer production saccharification passes through the inside of the first conduit, the heat of the steam is absorbed by the circulating heat exchange tube. The continuous flow of liquid inside the circulating heat exchange tube ensures high heat exchange efficiency. The first conduit, made of insulation material, can reduce heat loss.

[0010] Preferably, the circulating heat exchange tube penetrates the outer wall of the first heat exchange plate, the first heat exchange plate is in contact with the outer wall of the circulating heat exchange tube, and the first heat exchange plate is arranged in a ring array with the center of the first conduit as the axis.

[0011] By adopting the above technical solution, the heat exchange efficiency can be improved by using the design of the first heat exchange plate distributed in a ring array. The first heat exchange plate can increase the contact area with steam and improve the heat recovery efficiency.

[0012] Preferably, the second heat exchange plate is designed in a circular shape, and the second heat exchange plate is in contact with the first heat exchange plate, and the second heat exchange plates are distributed in an equidistant array.

[0013] By adopting the above technical solution, the contact area between the second heat exchange plate and the first heat exchange plate can be further increased, thereby further improving the heat exchange efficiency and heat recovery rate.

[0014] Preferably, the guide channel is fixed to the inner wall of the first conduit, and both ends of the guide channel are connected to the collection pipe, which extends to the outside of the first conduit.

[0015] Using the above technical solution, the liquid appearing inside the first conduit can be collected through the guide channel to avoid downward backflow, and the condensate can be collected in conjunction with the collection pipe.

[0016] Compared with the prior art, the beneficial effects of this utility model are: the saccharification heat recovery device for beer production; 1. The circulating heat exchange tube adopts a spiral winding design, which increases the contact area with steam. When the saccharification steam flows through the first conduit, the liquid flowing in the circulating heat exchange tube can fully absorb the heat of the steam, ensuring a high basic heat exchange efficiency. The first heat exchange plate distributed in a ring array further expands the contact area with steam. The second heat exchange plate, which is circular and equidistantly distributed, contacts the first heat exchange plate, achieving a secondary increase in contact area. Under the combined action of multiple structures, the heat recovery efficiency is greatly improved, and the heat insulation structure further reduces heat loss. 2. Condensate collection is convenient and reasonable: The guide channel can collect the liquid generated inside the first guide tube in a directional manner, preventing the condensate from flowing back down and affecting the operation of the device. Together with the collection pipe extending to the outside, the condensate can be collected in an orderly manner. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram of the overall structure of this utility model from another angle; Figure 3 This is a schematic diagram of the first conduit and flange structure of this utility model; Figure 4 This is a schematic cross-sectional view of the first catheter of this utility model; Figure 5 This is a schematic diagram of the structure of the first heat exchange plate and the second heat exchange plate of this utility model; Figure 6 This is a schematic diagram of the flow guide channel and collection pipe structure of this utility model.

[0018] In the diagram: 1. First conduit; 2. Second conduit; 3. Heat exchange tank; 4. Circulating heat exchange tube; 5. First heat exchange plate; 6. Second heat exchange plate; 7. Flange; 8. Guide channel; 9. Collection pipe; 10. Circulating liquid inlet pipe; 11. Circulating liquid outlet pipe. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] Please see Figure 1-6This utility model provides a technical solution: a saccharification heat recovery device for beer production, including a first conduit 1, with a second conduit 2 connected to the upper end of the first conduit 1. A heat exchange tank 3 is provided inside the first conduit 1, and a circulating heat exchange pipe 4 is provided inside the heat exchange tank 3. Both ends of the first conduit 1 and the second conduit 2 are connected to flanges 7, and the first conduit 1 and the second conduit 2 are connected by flanges 7 and fixed by bolts. The outer wall of the first conduit 1 is made of heat-insulating material. The circulating heat exchange pipe 4 is spirally arranged inside the heat exchange tank 3. The upper end of the circulating heat exchange pipe 4 is connected to a circulating liquid inlet pipe 10, and the lower end of the circulating heat exchange pipe 4 is connected to a circulating liquid outlet pipe 11. Both the circulating liquid inlet pipe 10 and the circulating liquid outlet pipe 11 extend to the outside of the first conduit 1. The first conduit 1 and the second conduit 2 are of matching specifications, and flanges 7 (made of corrosion-resistant metal material, such as 304 stainless steel) are fixed at the connection ends of the two sets of conduits. When the high-temperature steam (usually 80-120℃) generated in the saccharification process of beer production needs to be recovered for heat, the steam is introduced into the first conduit 1 through a conveying pipe. At this point, the external circulation system is activated. The circulating liquid (softened water or heat transfer oil can be selected) is pressurized by the circulating water pump and pumped into the circulating heat exchange tube 4 from the circulating inlet pipe 10. As the steam flows through the first conduit 1, the heat carried by the steam is transferred to the spirally wound wall of the circulating heat exchange tube 4 through heat conduction. The low-temperature circulating liquid inside the circulating heat exchange tube 4 absorbs heat and its temperature rises. Because the circulating heat exchange tube 4 adopts a spiral winding design, the contact area with the steam is significantly increased. Combined with the insulation layer on the outer wall of the first conduit 1, this effectively prevents heat from diffusing outwards, ensuring that heat is concentrated and transferred to the circulating liquid. The high-temperature circulating liquid, after absorbing heat, flows out through the circulating outlet pipe 11 and enters an external storage tank or subsequent heat-using equipment (such as a saccharification hot water preparation tank), achieving heat recovery and reuse. During operation, the flange 7 connection structure between the first conduit 1 and the second conduit 2 remains stable and sealed to prevent steam leakage; the circulating liquid flows continuously within the circulating heat exchange tube 4, ensuring the continuity and efficiency of heat exchange, thereby achieving stable recovery of heat from beer saccharification steam.

[0021] A first heat exchange plate 5 is installed inside the first conduit 1, and a second heat exchange plate 6 runs through the first heat exchange plate 5. Both the first and second heat exchange plates are made of aluminum alloy or copper alloy. A circulating heat exchange tube 4 passes through the outer wall of the first heat exchange plate 5, and the first heat exchange plate 5 is in contact with the outer wall of the circulating heat exchange tube 4. The first heat exchange plates 5 are arranged in a ring array around the center of the first conduit 1. The second heat exchange plate 6 is also ring-shaped and in contact with the first heat exchange plate 5, and is arranged in an equidistant array. When high-temperature steam enters the first conduit 1, in addition to direct heat exchange with the circulating heat exchange tube 4, the steam will also have full contact with the ring-arranged first heat exchange plates 5. Because the first heat exchange plate 5 is in close contact with the outer wall of the circulating heat exchange tube 4, after absorbing the heat from the steam, the first heat exchange plate 5 will quickly transfer the heat to the circulating heat exchange tube 4, increasing the heat transfer path and efficiency. Meanwhile, the second heat exchange plate 6, arranged in a circular and equidistant array, contacts the first heat exchange plate 5, further expanding the contact area with the steam. During its flow, the steam comes into contact with the surface of the second heat exchange plate 6. The heat absorbed by the second heat exchange plate 6 is transferred to the first heat exchange plate 5 through contact, and then from the first heat exchange plate 5 to the circulating heat exchange tube 4. This structure, where the first heat exchange plate 5 and the second heat exchange plate 6 work together, forms a multi-dimensional heat exchange network, allowing the heat in the steam to be collected and transferred more comprehensively and quickly to the circulating liquid within the circulating heat exchange tube 4, significantly improving the overall heat recovery efficiency of the device. A flow guide groove 8 is provided at the lower end of the first conduit 1, and a collection pipe 9 runs through the flow guide groove 8. The flow guide groove 8 is fixed to the inner wall of the first conduit 1, and both ends of the flow guide groove 8 are connected to the collection pipe 9, which extends to the outside of the first conduit 1. During the operation of the device, high-temperature steam exchanges heat with the circulating heat exchange tube 4, the first heat exchange plate 5, and the second heat exchange plate 6 inside the first conduit 1. As the temperature decreases, the steam condenses to form condensate. This condensate adheres to the inner wall of the first conduit 1, the surface of the heat exchange plates, and the outer wall of the circulating heat exchange tube 4. As the amount of condensate increases, the liquid flows downward under the action of gravity. At this time, the flow guide groove 8 at the lower end of the first conduit 1 plays a guiding role. The flowing condensate is collected by the flow guide groove 8, preventing the condensate from flowing randomly inside the first conduit 1 or flowing back downward to the steam input end. It is then transported to the storage container or processing equipment outside the first conduit 1 through the collection pipe 9. This completes a series of operations. The contents not described in detail in this specification are prior art known to those skilled in the art.

[0022] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A saccharification heat recovery device for beer production, comprising a first conduit (1), characterized in that: The upper end of the first conduit (1) is connected to the second conduit (2). A heat exchange groove (3) is opened inside the first conduit (1), and a circulating heat exchange tube (4) is installed inside the heat exchange groove (3). A first heat exchange plate (5) is installed inside the first conduit (1), and a second heat exchange plate (6) passes through the first heat exchange plate (5). The outer wall of the first conduit (1) is made of heat insulation material. The circulating heat exchange tube (4) is spirally arranged inside the heat exchange tank (3). The upper end of the circulating heat exchange tube (4) is connected to the circulating liquid inlet pipe (10), and the lower end of the circulating heat exchange tube (4) is connected to the circulating liquid outlet pipe (11). Both the circulating liquid inlet pipe (10) and the circulating liquid outlet pipe (11) extend to the outside of the first conduit (1). The lower end of the first conduit (1) is provided with a guide groove (8), and a collection tube (9) passes through the guide groove (8). The guide groove (8) is fixed to the inner wall of the first conduit (1), and the two ends of the guide groove (8) are connected to the collection pipe (9), which extends to the outside of the first conduit (1).

2. The saccharification heat recovery device for beer production according to claim 1, characterized in that: Both ends of the first conduit (1) and the second conduit (2) are connected to flanges (7), and the first conduit (1) and the second conduit (2) are connected by flanges (7), and the two sets of flanges (7) are fixed with bolts.

3. The saccharification heat recovery device for beer production according to claim 1, characterized in that: The circulating heat exchange tube (4) penetrates the outer wall of the first heat exchange plate (5), the first heat exchange plate (5) is in contact with the outer wall of the circulating heat exchange tube (4), and the first heat exchange plate (5) is arranged in a ring array with the center of the first conduit (1) as the axis.

4. The saccharification heat recovery device for beer production according to claim 1, characterized in that: The second heat exchange plate (6) is designed in a circular shape, and the second heat exchange plate (6) is in contact with the first heat exchange plate (5), and the second heat exchange plates (6) are distributed in an equidistant array.

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