Vertical heat exchange tube arrangement structure for heating sand and gravel

Abstract

The utility model relates to sand and gravel heating technical field, concretely is a kind of sand and gravel heating with vertical heat exchange tube arrangement structure, including liquid supply header, the liquid supply header top is fixedly connected with back liquid header, the liquid supply header bottom is fixedly connected with several groups of heat exchange pipes, the heat exchange pipe inner wall is fixedly connected with several groups of connecting frame, backflow pipe is fixedly provided on the connecting frame, backflow pipe is provided into back liquid header, the heat exchange pipe is set as round tube, the heat exchange pipe surface is smooth. Since heat exchange pipe is set as round tube and vertical distribution, surface is smooth, can effectively avoid sand and gravel adhesion, residual in heat exchange pipe surface in discharging link, solve the problem that serpentine pipe structure bend prevents sand and gravel discharge, lead to residual need manual cleaning, ensure the continuity of heating operation, improve work efficiency.

Description

Technical Field

[0001] This utility model relates to the field of sand and gravel heating technology, specifically a vertical heat exchange tube arrangement structure for sand and gravel heating. Background Technology

[0002] In construction, road paving, and other engineering fields, the temperature of aggregates has a significant impact on project quality and construction efficiency. Especially in low-temperature environments, heating aggregates can effectively improve the performance of concrete and asphalt mixtures, increase their setting speed and strength, and ensure the smooth progress and quality of construction projects.

[0003] Currently, sand and gravel heating mostly employs heat exchange tubes. To increase the contact area between the heat exchange tubes and the sand and gravel, and improve heat exchange efficiency, traditional heating equipment typically uses a serpentine tube structure. However, in actual use, during the discharge stage, the bends in the serpentine tube structure obstruct the discharge of sand and gravel, resulting in some sand and gravel remaining on the tubes. This residual sand and gravel requires manual cleaning, which is not only labor-intensive and time-consuming but also interrupts the continuity of heating operations, leading to a decrease in overall work efficiency and making it difficult to meet the high-efficiency heating requirements of large-scale engineering projects. To avoid sand and gravel residue on the heat exchange tubes after heating, ensure the continuity of heating operations, and improve work efficiency, we propose a vertical heat exchange tube arrangement structure for sand and gravel heating. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a vertical heat exchange tube arrangement structure for heating sand and gravel, which can prevent sand and gravel residue from remaining on the heat exchange tubes after heating, ensuring the continuity of heating operations and improving work efficiency.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A vertical heat exchange tube arrangement structure for heating sand and gravel includes a liquid supply manifold, a return liquid manifold fixedly connected to the top of the liquid supply manifold, a plurality of heat exchange tubes fixedly connected to the bottom of the liquid supply manifold, a plurality of connecting frames fixedly connected to the inner wall of the heat exchange tubes, a return pipe fixedly passing through the connecting frame, the return pipe passing through the inlet and return liquid manifolds, the heat exchange tubes being circular tubes with smooth surfaces.

[0007] Preferably, a supply branch pipe is fixedly connected to the left side of the supply manifold, and a main supply pipe is fixedly connected to the end of the supply branch pipe away from the supply manifold. A return branch pipe is fixedly connected to the left side of the return manifold, and a main return pipe is fixedly connected to the end of the return branch pipe away from the return manifold.

[0008] Preferably, a connecting sleeve is fixedly fitted outside the return pipe, and the top of the connecting sleeve is fixedly connected to the bottom of the liquid supply manifold.

[0009] Preferably, the connecting frame has several sets of through holes.

[0010] Preferably, the top of the return manifold is provided with an inclined surface.

[0011] Preferably, the heat exchange tube is made of copper.

[0012] Beneficial effects

[0013] This invention provides a vertical heat exchange tube arrangement structure for heating sand and gravel. Compared with the prior art, it has the following advantages:

[0014] This invention relates to a vertical heat exchange tube arrangement structure for heating sand and gravel. By setting the heat exchange tubes as circular tubes and distributing them vertically with smooth surfaces, it can effectively prevent sand and gravel from sticking and remaining on the surface of the heat exchange tubes during the material discharge process. This solves the problem of sand and gravel being obstructed at the bends of serpentine tube structures, which leads to residues requiring manual cleaning. This ensures the continuity of heating operations and improves work efficiency. Attached Figure Description

[0015] Figure 1 This is a front view structural diagram of the main body of this utility model;

[0016] Figure 2 This is a schematic diagram of the main cross-sectional structure of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection structure between the return pipe and the connecting frame of this utility model;

[0018] Figure 4 For the present utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle.

[0019] In the diagram: 1. Liquid supply manifold; 2. Liquid return manifold; 3. Connecting sleeve; 4. Main liquid return pipe; 5. Main liquid supply pipe; 6. Sub-liquid return pipe; 7. Heat exchanger tube; 8. Sub-liquid supply pipe; 9. Return pipe; 10. Connecting bracket. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4This utility model provides a technical solution: a vertical heat exchanger tube arrangement structure for heating sand and gravel, including a liquid supply manifold 1, a return liquid manifold 2 fixedly connected to the top of the liquid supply manifold 1, a number of heat exchanger tubes 7 fixedly connected to the bottom of the liquid supply manifold 1, a number of connecting frames 10 fixedly connected to the inner wall of the heat exchanger tubes 7, a return pipe 9 fixedly passing through the connecting frame 10, the return pipe 9 passing through the inlet and return liquid manifolds 2, the heat exchanger tubes 7 being round tubes with smooth surfaces.

[0022] A liquid supply manifold 1 is fixedly connected to a liquid supply branch pipe 8 on its left side. The end of the liquid supply branch pipe 8 away from the liquid supply manifold 1 is fixedly connected to a liquid supply main pipe 5. A return liquid manifold 2 is fixedly connected to a return liquid branch pipe 6 on its left side. The end of the return liquid branch pipe 6 away from the return liquid manifold 2 is fixedly connected to a return liquid main pipe 4.

[0023] In operation, multiple sets of this structure are installed on the heating chamber. Then, sand and gravel are added to the heating chamber. Driven by a liquid pump, high-temperature hot fluid is injected into the supply manifold 1 through the supply manifold 8. The hot fluid in the supply manifold 1 flows into the heat exchange tube 7, exchanging heat with the sand and gravel outside the heat exchange tube 7. After heat exchange, the hot fluid flows into the return manifold 2 through the return pipe 9, and then returns to the hot fluid container through the return manifold 6 and the return main pipe 4, thus achieving cyclic heating. After heating is complete, the sand and gravel need to be discharged from the heating chamber. Because the heat exchange tube 7 is a circular tube and vertically distributed, the sand and gravel are less likely to stick or remain on the surface of the heat exchange tube 7. Furthermore, the smooth surface of the heat exchange tube 7 further improves the smoothness of sand and gravel discharge, thereby ensuring the continuity of the heating operation and improving work efficiency.

[0024] A connecting sleeve 3 is fixedly fitted around the outside of the return pipe 9, and the top of the connecting sleeve 3 is fixedly connected to the bottom of the liquid supply manifold 1. This makes the connection between the heat exchange pipe 7 and the return manifold 2 more stable and extends their service life.

[0025] The connecting bracket 10 has several sets of through holes to ensure that the hot fluid can flow smoothly between the heat exchange tube 7 and the return tube 9.

[0026] The top of the return manifold 2 is provided with a slope. This prevents sand and gravel from accumulating on the return manifold 2 during the feeding process and avoids blockage.

[0027] Heat exchange tube 7 is made of copper. Copper has high thermal conductivity and good heat conduction effect.

[0028] Working Principle: During operation, multiple sets of this structure are installed on the heating chamber. Then, sand and gravel are added to the heating chamber. Driven by a liquid pump, high-temperature hot fluid is injected into the supply manifold 1 through the supply manifold 8. The hot fluid in the supply manifold 1 flows into the heat exchange tube 7, exchanging heat with the sand and gravel outside the heat exchange tube 7. Several sets of through holes are provided on the connecting frame 10 to ensure smooth flow of the hot fluid between the heat exchange tube 7 and the return pipe 9. After heat exchange, the hot fluid flows into the return manifold 2 through the return pipe 9, and then returns to the hot fluid container through the return manifold 6 and the return main pipe 4, thus achieving cyclic heating. After heating is complete, the sand and gravel need to be discharged from the heating chamber. Because the heat exchange tube 7 is a circular tube and vertically distributed, the sand and gravel are less likely to stick or remain on the surface of the heat exchange tube 7. Furthermore, the smooth surface of the heat exchange tube 7 further improves the smoothness of sand and gravel discharge, thus ensuring the continuity of the heating operation and improving work efficiency.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical heat exchanger tube arrangement structure for heating sand and gravel, comprising a liquid supply manifold (1), characterized in that: The top of the liquid supply manifold (1) is fixedly connected to the return manifold (2), and the bottom of the liquid supply manifold (1) is fixedly connected to several sets of heat exchange tubes (7). The heat exchange tubes (7) are vertically distributed, and the inner wall of the heat exchange tubes (7) is fixedly connected to several sets of connecting brackets (10). A return pipe (9) is fixedly inserted through the connecting bracket (10). The return pipe (9) is inserted through the inlet and return manifold (2). The heat exchange tubes (7) are round tubes with smooth surfaces.

2. The vertical heat exchanger tube arrangement structure for heating sand and gravel as described in claim 1, characterized in that: The supply manifold (1) is fixedly connected to a supply branch pipe (8) on its left side. The end of the supply branch pipe (8) away from the supply manifold (1) is fixedly connected to a main supply pipe (5). The return manifold (2) is fixedly connected to a return branch pipe (6) on its left side. The end of the return branch pipe (6) away from the return manifold (2) is fixedly connected to a main return pipe (4).

3. The vertical heat exchanger tube arrangement structure for heating sand and gravel as described in claim 1, characterized in that: The return pipe (9) is fixedly fitted with a connecting sleeve (3), and the top of the connecting sleeve (3) is fixedly connected to the bottom of the liquid supply manifold (1).

4. The vertical heat exchanger tube arrangement structure for heating sand and gravel according to claim 1, characterized in that: The connecting frame (10) has several sets of through holes.

5. The vertical heat exchanger tube arrangement structure for heating sand and gravel according to claim 1, characterized in that: The top of the return manifold (2) is provided with an inclined surface.

6. The vertical heat exchanger tube arrangement structure for heating sand and gravel according to claim 1, characterized in that: The heat exchange tube (7) is made of copper.

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