Box shell structure of coating oven
By designing the box shell structure in the coating oven, using the waste heat recovery cavity between the inner and outer shells and the copper heat exchange tube, the problems of heat loss and power consumption are solved, and the effective utilization of heat and energy consumption are achieved.
Patent Information
- Application Number
- CN202323419117.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-14
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2033-12-14
AI Technical Summary
The existing coating ovens have high temperatures in the box shell due to heating of the heating pipe, which makes the heat loss and cannot be effectively utilized, which increases the working power consumption.
Design a box shell structure for coating ovens, including a waste heat recovery cavity between the inner shell and the outer shell, a first insulation layer, a heat exchange tube and a second insulation layer, and a heat exchange tube is arranged along the outer wall of the first insulation layer. , the heat exchange fins made of copper materials can be used to increase the heat exchange area, and the anti-corrosion coating prevents harmful gases from corrosion.
It effectively reduces the heat exchange between the box shell and the environment, reduces energy consumption, and collects and utilizes lost waste heat, improving heat utilization efficiency.
Smart Images
Figure CN222152738U_ABST
Abstract
Description
[Technical field]
[0001] The utility model relates to the field of hot melt adhesive production, in particular to a box shell structure of a coating oven. [Background technology]
[0002] There are multiple drying zones with different temperatures inside the coating oven. The coating needs to be fully dried in the drying areas with different temperatures in turn. The coating ovens on the market are usually heated by heating tubes. The shell of the coating oven will become higher due to the heating of the heating tubes, and the coating oven will exchange heat with the ambient air, resulting in heat loss. Therefore, the working power consumption of the coating oven will increase, and the natural loss of heat is not effectively utilized. [Contents of the utility model]
[0003] The purpose of the utility model is to overcome the above problems. We provide a shell structure of a coating oven, which can reduce the heat loss of the coating oven and collect the waste heat of the lost heat.
[0004] To achieve the above-mentioned purpose, the utility model provides a box shell structure of a coating oven, which includes a box shell body composed of an inner shell and an outer shell, a waste heat recovery cavity is formed between the inner shell and the outer shell, and the waste heat recovery cavity is provided with a first insulation layer, a heat exchange tube and a second insulation layer from the inside to the outside, and both ends of the heat exchange tube extend out of the inner shell or the outer shell, and the heat exchange tube is arranged in a circuitous manner along the outer wall of the first insulation layer.
[0005] In one or more embodiments, heat exchange fins are distributed on the surface of the heat exchange tube, and the heat exchange fins and the heat exchange tube are both made of copper.
[0006] In one or more embodiments, the first thermal insulation layer is bonded and fixed to the inner shell, the second thermal insulation layer is bonded and fixed to the outer shell, and the first thermal insulation layer and the second thermal insulation layer clamp the heat exchange tube.
[0007] In one or more embodiments, the outer shell and the inner shell are fixed by screws.
[0008] In one or more embodiments, a plurality of pipe supports for fixing the heat exchange pipes are disposed on the inner shell, and a clearance space is left at the position of the pipe supports of the first thermal insulation layer.
[0009] In one or more embodiments, outer surfaces of the outer shell and the inner shell have an anti-corrosion coating.
[0010] In one or more embodiments, the thickness of the first thermal insulation layer is 3CM-8CM, and the thickness of the second thermal insulation layer is 1CM-3CM.
[0011] Compared with the background technology, the utility model has the following effects: the coating oven adopting the box shell structure can reduce the heat loss and waste caused by the heat exchange between the box shell and the environment, effectively reduce the energy consumption of the coating oven, and can also collect the dissipated waste heat for utilization.
Brief Description of the Drawings
[0012] Figure 1 This is a schematic diagram of the structure of the box shell of the utility model;
[0013] Figure 2 It is a structural schematic diagram of the heat exchange tube and the pipe support of the utility model. [Specific implementation method]
[0014] In order to deepen the understanding of the present invention, the present invention will be further described in detail below in conjunction with embodiments and drawings. The embodiments are only used to explain the present invention and do not constitute a limitation on the protection scope of the present invention.
[0015] Please see Figure 1-2 The present embodiment provides a shell structure of a coating oven, which includes a shell body consisting of an inner shell 1 and an outer shell 2. A waste heat recovery cavity is formed between the inner shell 1 and the outer shell 2. The waste heat recovery cavity is provided with a first insulation layer 3, a heat exchange tube 4 and a second insulation layer 5 from the inside to the outside. The first insulation layer and the second insulation layer are polyurethane. Both ends of the heat exchange tube 4 extend out of the inner shell 1 or the outer shell 2 to facilitate the connection of the heat exchange medium input and output. The heat exchange tube 4 is arranged along the outer wall of the first insulation layer 3 to ensure sufficient heat exchange area. The first thermal insulation layer can insulate the outer wall of the inner shell to reduce the heat exchange between the inner and outer shells, so as to achieve the effect of thermal insulation. The heat exchange tube is used to collect the heat dissipated from the first thermal insulation layer, recover the waste heat, and make full use of the heat lost when the coating oven is working. The second thermal insulation layer and the first thermal insulation layer form a relatively closed space to intercept the heat dissipated from the first thermal insulation layer, so that the heat exchange tube can be fully collected and utilized. At the same time, the second thermal insulation layer can isolate the heat exchange tube from the heat exchange with the outside of the shell.
[0016] The surface of the heat exchange tube 4 is provided with heat exchange fins 41, which can indirectly increase the heat exchange area of the heat exchange tube and increase the heat exchange efficiency. The heat exchange fins and the heat exchange tube are both made of copper, which is a commonly used heat exchange tube material with mature technology.
[0017] The first insulation layer 3 is bonded and fixed to the inner shell 1, and the second insulation layer 5 is bonded and fixed to the outer shell 2. The first insulation layer and the second insulation layer clamp the heat exchange tube to ensure the fit between the first insulation layer and the inner shell, and the fit between the second insulation layer and the outer shell, thereby enhancing the thermal insulation effect.
[0018] The outer shell 2 and the inner shell 1 are connected and fixed by screws, so that when the heat exchange tube is damaged, the outer shell can be disassembled to repair the heat exchange tube. Specifically, a plurality of pipe brackets 6 for fixing the heat exchange tube 4 are arranged on the inner shell 1, and the pipe brackets are fixed to the shell wall of the inner shell by screws, and the first insulation layer 3 is located at the position of the pipe brackets 6 with an avoidance position.
[0019] The outer surfaces of the outer shell 2 and the inner shell 1 are both provided with an anti-corrosion coating. Harmful gases are generated during coating and drying, and the anti-corrosion coating can prevent these gases from corroding the outer shell and the inner shell.
[0020] The thickness of the first insulation layer 3 is 3CM-8CM, preferably 3CM, 4CM, 5CM, 6CM and 8CM, and the thickness of the second insulation layer 5 is 1CM-3CM, preferably 2CM and 3CM. Under this thickness selection, the thermal insulation effect of the first insulation layer and the second insulation layer can be ensured.
[0021] The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment. Any equivalent modifications or changes made by ordinary technicians in this field based on the contents disclosed in the present invention should be included in the protection scope recorded in the claims.
Claims
1. A shell structure of a coating oven, characterized in that: The invention comprises a box shell body composed of an inner shell (1) and an outer shell (2), a waste heat recovery cavity is formed between the inner shell (1) and the outer shell (2), a first thermal insulation layer (3), a heat exchange tube (4) and a second thermal insulation layer (5) are arranged from the inside to the outside of the waste heat recovery cavity, two ends of the heat exchange tube (4) extend out of the inner shell (1) or the outer shell (2), and the heat exchange tube (4) is arranged in a circuitous manner along the outer wall of the first thermal insulation layer (3).
2. The shell structure of a coating oven according to claim 1, characterized in that: Heat exchange fins (41) are distributed on the surface of the heat exchange tube (4), and both the heat exchange fins and the heat exchange tube are made of copper.
3. The shell structure of a coating oven according to claim 1, characterized in that: The first thermal insulation layer (3) is bonded and fixed to the inner shell (1), and the second thermal insulation layer (5) is bonded and fixed to the outer shell (2). The first thermal insulation layer and the second thermal insulation layer clamp the heat exchange tube.
4. A shell structure of a coating oven according to claim 1, 2 or 3, characterized in that: The outer shell (2) and the inner shell (1) are connected and fixed by screws.
5. The shell structure of a coating oven according to claim 4, characterized in that: The inner shell (1) is provided with a plurality of pipe supports (6) for fixing the heat exchange pipes (4), and the first thermal insulation layer (3) is located at the position of the pipe supports (6) with an avoidance space left.
6. The shell structure of a coating oven according to claim 1, characterized in that: The outer surfaces of the outer shell (2) and the inner shell (1) are both provided with an anti-corrosion coating.
7. The shell structure of a coating oven according to claim 1, characterized in that: The thickness of the first thermal insulation layer (3) is 3CM-8CM, and the thickness of the second thermal insulation layer (5) is 1CM-3CM.