Heat energy circulating system for coating

Abstract

The utility model discloses a heat energy circulating system for coating. The heat energy circulating system comprises a coating pipeline and a heating device, the heating device is arranged outside the coating pipeline, the flowing path of circulating water can be changed by the annular partition plates when the circulating water circulates in the heat exchange sleeve, the circulating water can only circulate through the flowing openings in the annular partition plates, and the positions of the flowing openings of the adjacent annular partition plates in the heat exchange sleeve are staggered. In addition, the annular partition plate is also made of a heat conduction metal material, the contact area between the heat exchange sleeve and the circulating water can be increased through the annular partition plate, and therefore the heat exchange efficiency is improved. The heat transfer efficiency is effectively improved.

Description

Technical Field

[0001] This utility model relates to the field of coating heating technology, specifically a thermal energy circulation system for coating. Background Technology

[0002] In coating application, it is often necessary to heat the coating. Heating the coating can increase its viscosity and fluidity, making it easier to apply and coat. It can also promote coating curing, reduce viscosity changes, and improve work efficiency and coating effect. In the existing technology, tubular heat exchangers are usually used to heat the coating inside the pipes.

[0003] Existing patent application number: 201210080428.2 Spiral baffle type shell and tube heat exchanger, the purpose of which is to overcome the defects of ordinary shell and tube heat exchangers, such as small heat exchange area and difficulty in cleaning, and to provide a spiral baffle type shell and tube heat exchanger that increases heat exchange area and is easy to clean.

[0004] The aforementioned patent describes the structural principle of a tubular heat exchanger. In practical applications, a heating sleeve is installed outside the paint channel to heat the paint passing through the channel. However, due to the simple internal structure of the heating sleeve, the circulating water flows relatively fast inside the heating sleeve, resulting in an unsatisfactory heat transfer effect between the circulating water and the paint channel, which affects the working performance of the tubular heat exchanger. Therefore, we propose a thermal energy circulation system for coating to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a thermal energy circulation system for coating to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a thermal energy circulation system for coating, comprising a coating pipe and a heating device, wherein the heating device is provided outside the coating pipe, and the heating device includes a heat exchange sleeve, a circulation inlet, a circulation outlet, an annular baffle, and a flow port. The heat exchange sleeve is sleeved and installed outside the coating pipe, and a circulation inlet is provided at the bottom left end of the heat exchange sleeve, and a circulation outlet is provided at the bottom right end of the heat exchange sleeve. An annular baffle is sealed and welded inside the heat exchange sleeve, the number of annular baffles is not less than two, and the annular baffles are equidistantly distributed inside the heat exchange sleeve. A flow port is provided through the surface of the annular baffle.

[0007] Preferably, the flow ports of adjacent annular baffles inside the heat exchange sleeve are staggered.

[0008] Preferably, the annular partition is made entirely of thermally conductive metal.

[0009] Preferably, the heat exchange sleeve is covered with an insulation layer, which is made of polyurethane foam.

[0010] Preferably, the insulation layer is covered with a heat insulation sleeve, which is made of aramid fiber.

[0011] Preferably, a silicone grease pad is applied to the inner side of the opening of the heat exchange sleeve.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention incorporates a heating device on the outside of the coating pipe. When circulating water flows inside the heat exchange sleeve, its flow path is altered by an annular baffle. The circulating water can only flow through the flow ports on the annular baffles. Furthermore, the flow ports of adjacent annular baffles inside the heat exchange sleeve are staggered, thereby increasing the flow path length of the circulating water inside the heat exchange sleeve and extending its residence time. This increases the heat transfer time between the circulating water and the coating pipe, thus improving heat transfer efficiency. In addition, the annular baffles themselves are made of thermally conductive metal, allowing the heat exchange sleeve to increase its contact area with the circulating water, effectively improving heat transfer efficiency.

[0014] This invention incorporates an insulation layer on the outside of the heat exchanger sleeve, which reduces heat loss and prevents heat from escaping to the outside.

[0015] This invention features a heat-insulating sleeve over the insulation layer. The heat-insulating sleeve has excellent heat insulation properties, providing contact protection for the operator and preventing accidental burns.

[0016] This invention improves the heat transfer efficiency between the heat exchange sleeve and the coating pipe by applying a silicone grease pad inside the opening of the heat exchange sleeve and filling the space between the heat exchange sleeve and the coating pipe. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;

[0018] Figure 2 This is a front view cross-sectional structural diagram of the heating device in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal flow path of the heating device in this utility model;

[0020] Figure 4 This is a schematic diagram of the left-side cross-sectional structure of the heat exchanger sleeve in this utility model.

[0021] In the diagram: paint pipe-1, heating device-2, heat exchange sleeve-21, circulation inlet-22, circulation outlet-23, annular baffle-24, flow port-25, insulation layer-26, heat insulation sleeve-27, silicone grease pad-28. Detailed Implementation

[0022] To further explain the technical solution of this utility model, a detailed description is provided below through specific embodiments.

[0023] Please see Figure 1 This utility model provides a thermal energy circulation system for coating, including a coating pipe 1 and a heating device 2, wherein the heating device 2 is provided on the outside of the coating pipe 1.

[0024] Please see Figure 2-4 This utility model provides a thermal energy circulation system for coating. The heating device 2 includes a heat exchange sleeve 21, a circulation inlet 22, a circulation outlet 23, an annular baffle 24, and a flow port 25. The heat exchange sleeve 21 is sleeved on the outside of the coating pipe 1. The circulation inlet 22 is provided at the bottom left end of the heat exchange sleeve 21, and the circulation outlet 23 is provided at the bottom right end of the heat exchange sleeve 21. An annular baffle 24 is sealed and welded inside the heat exchange sleeve 21. There are no less than two annular baffles 24, and the annular baffles 24 are evenly distributed inside the heat exchange sleeve 21. The surface of the annular baffle 24 is provided with a flow port 25. Circulating water flows through the annular baffle 24 through the flow port 25 and circulates inside the heat exchange sleeve 21.

[0025] To further explain, the flow ports 25 of adjacent annular baffles 24 inside the heat exchanger tube 21 are staggered to increase the flow path length of the circulating water inside the heat exchanger tube 21, prolong the residence time of the circulating water, and increase the heat transfer time between the circulating water and the coating pipe 1, thereby improving the heat transfer efficiency.

[0026] To further explain, the annular baffle 24 is made of thermally conductive metal and has good thermal conductivity. The heat exchange sleeve 21 can increase the contact area with the circulating water through the annular baffle 24, which can effectively improve the heat transfer efficiency.

[0027] To further explain, the heat exchanger sleeve 21 is covered with an insulation layer 26, which is made of polyurethane foam. The insulation layer 26 can reduce heat loss and prevent the heat exchanger sleeve 21 from losing heat to the outside.

[0028] To further explain, the insulation layer 26 is covered with a heat insulation sleeve 27. The heat insulation sleeve 27 is made of aramid material and has excellent heat insulation performance, providing contact protection for the operator and avoiding accidental burns.

[0029] To further explain, a silicone grease pad 28 is laid on the inner side of the opening of the heat exchange sleeve 21. The silicone grease pad 28 fills the space between the heat exchange sleeve 21 and the coating pipe 1 to improve the heat transfer efficiency between the heat exchange sleeve 21 and the coating pipe 1.

[0030] The working principle is as follows:

[0031] First, during use, high-temperature circulating water enters the heat exchange sleeve 21 through the circulation inlet 22. The circulating water transfers heat to the heat exchange sleeve 21, which then transfers heat to the paint pipe 1 to heat the paint passing through it, thereby heating the paint. The circulating water that has completed the heat exchange is then discharged from the heat exchange sleeve 21 through the circulation outlet 23.

[0032] Secondly, when circulating water flows inside the heat exchanger tube 21, its flow path is altered by the annular baffle 24. The circulating water can only flow through the flow port 25 on the annular baffle 24. The flow ports 25 of adjacent annular baffles 24 inside the heat exchanger tube 21 are staggered, thereby increasing the flow path length of the circulating water inside the heat exchanger tube 21, extending the residence time of the circulating water, and increasing the heat transfer time between the circulating water and the coating pipe 1, thus improving the heat transfer efficiency. In addition, the annular baffle 24 itself is also made of thermally conductive metal, and the heat exchanger tube 21 can increase the contact area with the circulating water through the annular baffle 24, effectively improving the heat transfer efficiency.

[0033] Third, by applying an insulation layer 26 to the outside of the heat exchanger sleeve 21, the insulation layer 26 can reduce heat loss and prevent the heat from the heat exchanger sleeve 21 from being lost to the outside.

[0034] Fourth, by covering the outside of the insulation layer 26 with a heat insulation sleeve 27, the heat insulation sleeve 27 has excellent heat insulation performance, providing contact protection for the operator and avoiding accidental burns.

[0035] Fifth, by applying a silicone grease pad 28 to the inside of the opening of the heat exchange sleeve 21, the silicone grease pad 28 fills the space between the heat exchange sleeve 21 and the coating pipe 1, thereby improving the heat transfer efficiency between the heat exchange sleeve 21 and the coating pipe 1.

[0036] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A thermal energy circulation system for coating, comprising a coating pipe (1), characterized in that: It also includes a heating device (2), which is provided outside the coating pipe (1). The heating device (2) includes a heat exchange sleeve (21), a circulation inlet (22), a circulation outlet (23), an annular baffle (24), and a flow port (25). The heat exchange sleeve (21) is sleeved and installed outside the coating pipe (1). A circulation inlet (22) is provided at the bottom left end of the heat exchange sleeve (21), and a circulation outlet (23) is provided at the bottom right end of the heat exchange sleeve (21). An annular baffle (24) is sealed and welded inside the heat exchange sleeve (21). There are no less than two annular baffles (24), and the annular baffles (24) are evenly distributed inside the heat exchange sleeve (21). A flow port (25) is provided through the surface of the annular baffle (24).

2. The thermal energy circulation system for coating according to claim 1, characterized in that: The flow ports (25) of adjacent annular baffles (24) inside the heat exchanger (21) are staggered.

3. The thermal energy circulation system for coating according to claim 1, characterized in that: The annular partition (24) is made of thermally conductive metal.

4. The thermal energy circulation system for coating according to claim 1, characterized in that: The heat exchange sleeve (21) is covered with an insulation layer (26), which is made of polyurethane foam.

5. The thermal energy circulation system for coating according to claim 4, characterized in that: The insulation layer (26) is covered with a heat insulation sleeve (27), which is made of aramid material.

6. The thermal energy circulation system for coating according to claim 1, characterized in that: A silicone grease pad (28) is applied to the inside of the opening of the heat exchange sleeve (21).

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