Vertical cooling pipe arrangement structure for sand cooling

Abstract

This utility model discloses a vertical cooling pipe arrangement structure for sand cooling, including a liquid supply manifold, a return manifold, and several liquid supply and return branch pipes. The liquid supply manifold and return manifold are closed pipe structures, each located on one side of the cooling unit. The liquid supply and return branch pipes are arranged vertically, with the upper end of the liquid supply branch pipe connected to the liquid supply manifold and the lower end open. One end of the return branch pipe is closed, and the other end is connected to the return manifold. Multiple liquid supply branch pipes are arranged inside the return branch pipe and in the same axial direction, forming a zigzag flow channel structure between them. Multiple vertical cooling pipes are arranged in the same transverse direction to form a cooling module. This achieves large-area contact and facilitates natural aggregate sliding, effectively avoiding the aggregate adhesion problem caused by close contact with the plate surface in traditional plate structures. It solves the technical defects of decreased heat transfer efficiency and difficulty in sand detachment, improving cooling performance and equipment operational reliability.

Description

Technical Field

[0001] This utility model relates to the field of sand cooling technology, and in particular to the arrangement structure of vertical cooling pipes for sand cooling. Background Technology

[0002] As an important component of the sand precooling system in the sand and gravel aggregate precooling system, the sand cooling pipe allows the cold fluid to flow unidirectionally inside the pipe and exchange heat with the sand and gravel aggregate outside. The heat from the sand and gravel aggregate is transferred to the cold fluid through the pipe wall, achieving cooling of the sand and gravel aggregate. The cold fluid absorbs the heat from the sand and gravel aggregate and flows out from the return manifold. After being cooled by the refrigeration equipment, it is pressurized by a water pump and other conveying equipment before entering the inlet manifold. Subsequently, the fluid is divided into inlet branch pipes through the inlet manifold, and then flows out through the return branch pipe and the return manifold. This utility model discloses a vertical cooling pipe arrangement structure for sand cooling.

[0003] In existing technologies, thermally conductive sand cooling uses a plate structure, where two steel plates are welded together on all four sides. The plates are hollow, forming fluid channels where the fluid flows unidirectionally within the plates. The sand and gravel aggregate are tightly bonded to the outside of the plates. After cooling, the sand and gravel aggregate tends to adhere to the plates, hindering its removal and reducing heat transfer efficiency. This invention, a vertical cooling pipe arrangement structure for sand cooling, uses multiple vertical cooling pipes in contact with the sand and gravel aggregate, providing a sufficiently large contact area and smooth pipe surfaces, facilitating the removal of the sand and gravel aggregate. Utility Model Content

[0004] This utility model aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, the purpose of this utility model is to propose a vertical cooling pipe arrangement structure for sand cooling. By setting up a liquid supply manifold, a return manifold, and multiple vertically coaxially arranged liquid supply and return branch pipes, a cooling module with an internal zigzag flow channel and an external smooth vertical pipe structure is constructed. These vertical cooling pipes are installed one-to-one and evenly distributed in the sand and gravel aggregate channel, so that the fluid forms a U-shaped path in each cooling pipe, improving the heat exchange efficiency. Compared with the traditional plate structure, this structure avoids the adhesion problem caused by the sand and gravel aggregate being in close contact with the plate surface. By using a metal pipe with a smooth outer wall as a heat exchange surface, the sand and gravel aggregate can slide off naturally after cooling, preventing adhesion and accumulation, thereby improving the overall heat transfer efficiency and operational stability of the cooling system.

[0006] To achieve the above objectives, this utility model proposes a vertical cooling pipe arrangement structure for sand cooling, including a liquid supply manifold, a return manifold, and several liquid supply branch pipes and return branch pipes. The liquid supply manifold and return manifold are closed pipe structures, each located on one side of the cooling unit. The liquid supply branch pipes and return branch pipes are arranged vertically, with the upper end of the liquid supply branch pipe connected to the liquid supply manifold and the lower end open. One end of the return branch pipe is closed, and the other end is connected to the return manifold. Multiple liquid supply branch pipes are arranged inside the return branch pipes and are aligned axially. A zigzag flow channel structure is formed between the liquid supply branch pipes and the return branch pipes. Multiple vertical cooling pipes are arranged in the same transverse direction to form a cooling module.

[0007] This utility model discloses a vertical cooling pipe arrangement structure for sand cooling. A closed circulation channel for the coolant is constructed through a supply manifold and a return manifold. Multiple supply and return manifolds are vertically arranged and correspondingly combined to form a "U"-shaped zigzag flow channel structure. This allows the coolant to flow from top to bottom into the supply manifold, then zigzag upwards through the bottom to the return manifold, thereby extending the fluid residence time and improving heat exchange efficiency. The outer wall of the return manifold is smooth, and multiple cooling pipes are arranged laterally and exposed in the sand and gravel aggregate movement channel, achieving large-area contact and facilitating the natural sliding of the aggregate. This effectively avoids the aggregate adhesion problem caused by close contact with the plate surface in traditional plate structures, solving the technical defects of decreased heat transfer efficiency and difficulty in sand detachment, thus improving cooling performance and equipment operational reliability.

[0008] In addition, the vertical cooling pipe arrangement structure for sand cooling proposed in this utility model may also have the following additional technical features:

[0009] Specifically, the liquid supply pipe has an open structure at both ends, and the return pipe has a closed structure at one end and an open structure at the other end.

[0010] Specifically, the supply manifold and return manifold are closed at one end and have a fluid interface at the other end.

[0011] Specifically, multiple supply and return pipes are installed in a one-to-one correspondence.

[0012] Specifically, the outer wall of the return pipe has a smooth structure, which is used to contact the sand and gravel aggregate, reduce adhesion and improve cooling efficiency.

[0013] Specifically, the multiple vertical cooling pipes are evenly arranged in the transverse direction and exposed in the sand and gravel aggregate movement channel, and the return flow branch pipes are treated with a smooth metal outer surface.

[0014] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0015] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, in which:

[0016] Figure 1 This is a schematic diagram of the vertical cooling pipe arrangement structure for sand cooling according to this utility model.

[0017] As shown in the figure:

[0018] 1. Supply manifold; 2. Return manifold; 3. Supply branch pipe; 4. Return branch pipe. Detailed Implementation

[0019] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model. Rather, the embodiments of this utility model include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0020] The arrangement structure of the vertical cooling pipes for sand cooling according to an embodiment of this utility model will be described below with reference to the accompanying drawings.

[0021] like Figure 1 As shown, the vertical cooling pipe arrangement structure for sand cooling in this embodiment of the present invention may include a liquid supply manifold 1, a return manifold 2, a plurality of liquid supply branch pipes 3 and return branch pipes 4.

[0022] Among them, the liquid supply manifold 1 and the return manifold 2 are closed pipe structures, respectively located on one side of the cooling unit. The liquid supply branch pipe 3 and the return branch pipe 4 are arranged in the vertical direction. The upper end of the liquid supply branch pipe 3 is connected to the liquid supply manifold 1, and the lower end is open. One end of the return branch pipe 4 is closed, and the other end is connected to the return manifold 2. Multiple liquid supply branch pipes 3 are arranged inside the return branch pipe 4 and are arranged in the same direction as its axis. The liquid supply branch pipes 3 and the return branch pipe 4 form a zigzag flow channel structure. Multiple vertical cooling pipes are arranged in the same horizontal direction to form a cooling module.

[0023] It should be noted that the supply manifold 1 and return manifold 2 described in this embodiment are closed pipe structures, respectively located on one side of the cooling unit, providing inlet and outlet passages for the coolant. An internal circulating cooling channel is established between them via multiple supply branch pipes 3 and return branch pipes 4. Both supply branch pipes 3 and return branch pipes 4 are arranged vertically. The upper end of the supply branch pipe 3 is connected to the supply manifold 1, and the lower end is open, used to introduce coolant from the manifold and guide it into the lower space. The return branch pipe 4 is a structure with one end closed and the other end connected to the return manifold 2, its internal cavity serving as a coolant return passage. Multiple supply branch pipes 3 are coaxially arranged inside the return branch pipe 4, so that after the coolant flows down through the supply branch pipes 3, it turns back at the bottom into the return branch pipe 4 and then flows upward to the return manifold 2, thus forming a "U"-shaped zigzag flow channel structure within each vertical cooling pipe, significantly extending the residence time of the coolant in the cooling pipe and improving heat transfer efficiency. Multiple vertical cooling pipes are arranged in the same horizontal direction to form a modular structure. The overall layout is uniform and the structure is compact. It is suitable for forming a large area of ​​coverage with the contact surface of sand and gravel aggregate, improving the heat exchange capacity per unit area. At the same time, it is convenient for batch installation, maintenance and replacement of the cooling system, enhancing the on-site adaptability and system versatility of the cooling equipment.

[0024] Specifically, the supply manifold 1 and return manifold 2 are respectively set on one side of the cooling unit to form the main circulation path for coolant supply and return. The upper end of the supply manifold 3 is connected to the supply manifold 1, and the lower end is inserted into the corresponding return manifold 4. One end of the return manifold 4 is closed and the other end is connected to the return manifold 2, so that the coolant can flow in from top to bottom through the supply manifold 3 and turn back at the lower end to flow back up from the return manifold 4 to the return manifold 2. Thus, an independent "U-shaped" return flow channel is formed in each cooling pipe, which improves the residence time and heat exchange area of ​​the coolant. Each set of supply pipe 3 and return pipe 4 constitutes a vertical cooling pipe unit. Multiple units are arranged horizontally to form a cooling module, allowing the sand and gravel aggregate to come into contact with the smooth outer wall of the return pipe 4 over a large area during movement. After cooling, the aggregate can slide off naturally, avoiding the sand adhesion problem common in plate structures. This effectively solves the technical defects of traditional heat-conducting plate structures, such as severe adhesion, difficulty in sand removal, and reduced heat transfer efficiency, significantly improving cooling efficiency and structural reliability of the device.

[0025] In one embodiment of this utility model, such as Figure 1 As shown, the liquid supply pipe 3 has an open structure at both ends, while the return pipe 4 has a closed structure at one end and an open structure at the other end.

[0026] It should be noted that the liquid supply manifold 3 described in this embodiment is an open structure with both ends running through it, which facilitates the smooth downward flow of coolant after it enters from the liquid supply manifold 1. At the same time, its lower opening forms a direct conductive path with the lower closed cavity of the return manifold 4, allowing the coolant to flow naturally under gravity and achieve effective heat exchange. The structure design of the return manifold 4, which is open at the upper end and closed at the lower end, ensures that the coolant flows back up from the lower end to the return manifold 2, forcing the fluid to form a U-shaped path, further extending the residence time and improving the overall heat transfer efficiency.

[0027] In one embodiment of this utility model, such as Figure 1 As shown, the supply manifold 1 and the return manifold 2 are closed at one end and have fluid interfaces at the other end.

[0028] It should be noted that the structure of the supply manifold 1 and return manifold 2 described in this embodiment, which are closed at one end and have a fluid interface at the other end, facilitates the connection of the entire cooling system with external supply or drainage equipment, such as a cooling pump or heat exchange device. This enables automatic circulation of coolant in a closed loop, avoids leakage, facilitates system integration, and improves safety and equipment versatility.

[0029] In one embodiment of this utility model, such as Figure 1 As shown, multiple supply pipes 3 and return pipes 4 are installed in a one-to-one correspondence.

[0030] It should be noted that the supply pipe 3 and return pipe 4 described in this embodiment are installed in a one-to-one correspondence manner. Each supply pipe 3 and the corresponding return pipe 4 form an independent cooling channel to avoid fluid crossflow or flow deviation, and ensure that the coolant flow in each pipe is balanced and the temperature difference distribution is consistent, thereby further improving the modular cooling efficiency and system temperature control accuracy, which is suitable for large-area layout and zone control requirements.

[0031] In one embodiment of this utility model, such as Figure 1 As shown, the outer wall of the return pipe 4 has a smooth structure, which is used to contact the sand and gravel aggregate, reduce adhesion and improve cooling efficiency.

[0032] It should be noted that the outer wall of the return pipe 4 described in this embodiment adopts a smooth surface structure design, which can effectively reduce the friction and adhesion between the material and the pipe wall during the contact with sand and gravel aggregate, making it easier for the aggregate to fall off naturally after cooling, avoiding the phenomenon of sticking together or blocking, while reducing the impact of residual sand particles on heat transfer efficiency and enhancing the long-term stable operation capability of the cooling system.

[0033] In one embodiment of this utility model, such as Figure 1 As shown, multiple vertical cooling pipes are evenly arranged in the transverse direction and exposed in the sand and gravel aggregate movement channel. The return pipe 4 is treated with a smooth metal outer surface.

[0034] It should be noted that the multiple vertical cooling pipes described in this embodiment, including the liquid supply pipe 3 and the return pipe 4, are evenly arranged laterally and exposed in the sand and gravel aggregate channel, ensuring that the sand can fully contact each cooling pipe during the flow process to form a continuous and effective heat transfer interface. At the same time, the return pipe 4 is made of metal and is treated with surface polishing, sandblasting or anti-stick coating to improve its wear resistance and anti-sticking ability, ensuring stable cooling efficiency, reliable structural strength, and adaptability to continuous operation in complex working environments.

[0035] In summary, the vertical cooling pipe arrangement structure for sand cooling in this embodiment of the present invention constructs a closed circulation channel for the coolant through the supply manifold 1 and the return manifold 2. Multiple supply branch pipes 3 and return branch pipes 4 are vertically arranged and combined one-to-one to form a "U"-shaped zigzag flow channel structure, allowing the coolant to flow from top to bottom into the supply branch pipes 3, and then back up through the bottom to the return manifold 2, thereby extending the fluid residence time and improving the heat exchange efficiency. The outer wall of the return branch pipe 4 is a smooth structure, and multiple cooling pipes are arranged laterally and exposed in the sand and gravel aggregate movement channel, achieving large-area contact and facilitating the natural sliding of the aggregate. This effectively avoids the problem of aggregate adhesion caused by close contact with the plate surface in traditional plate structures, solves the technical defects of reduced heat transfer efficiency and difficulty in sand detachment, and improves cooling performance and equipment operational reliability.

[0036] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. A vertical cooling pipe arrangement structure for sand cooling, characterized by, It includes a supply manifold (1), a return manifold (2), several supply branch pipes (3) and return branch pipes (4), wherein, The liquid supply manifold (1) and return manifold (2) are closed pipe structures, respectively located on one side of the cooling unit. The liquid supply branch pipe (3) and return branch pipe (4) are arranged in a vertical direction. The upper end of the liquid supply branch pipe (3) is connected to the liquid supply manifold (1), and the lower end is open. One end of the return branch pipe (4) is closed, and the other end is connected to the return manifold (2). Multiple liquid supply branch pipes (3) are arranged inside the return branch pipe (4) and are arranged in the same direction as its axis. A zigzag flow channel structure is formed between the liquid supply branch pipe (3) and the return branch pipe (4). Multiple vertical cooling pipes are arranged in the same horizontal direction to form a cooling module.

2. The vertical cooling pipe arrangement for sand cooling according to claim 1, characterized in that: The liquid supply pipe (3) has an open structure at both ends, and the return pipe (4) has a closed structure at one end and an open structure at the other end.

3. The vertical cooling pipe arrangement for sand cooling according to claim 1, characterized in that: The supply manifold (1) and return manifold (2) are closed at one end and have a fluid interface at the other end.

4. The vertical cooling pipe arrangement structure for sand cooling according to claim 1, characterized in that: Multiple supply pipes (3) and return pipes (4) are installed in a one-to-one correspondence.

5. The vertical cooling pipe arrangement structure for sand cooling according to claim 1, characterized in that: The outer wall of the return pipe (4) is smooth, which is used to contact the sand and gravel aggregate, reduce adhesion and improve cooling efficiency.

6. The vertical cooling pipe arrangement structure for sand cooling according to claim 1, characterized in that: The multiple vertical cooling pipes are evenly arranged in the transverse direction and exposed in the sand and gravel aggregate movement channel. The return pipe (4) is treated with a smooth metal outer surface.

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