Coating machine oven heating device and coating machine oven

Abstract

The coating machine oven heating device comprises an oven body and an air supply pipeline located in the oven body, the air supply pipeline is provided with an air inlet and an air outlet which are communicated with each other, the air inlet is located at one end of the oven body, and the air outlet is located at the other end of the oven body; the box body is further provided with a heat exchange mechanism, the heat exchange mechanism comprises a heat exchanger, a steam pipeline and a condensate water pipeline, the steam pipeline and the condensate water pipeline are connected with the heat exchanger, the heat exchanger is located in the box body and close to the air inlet, and the steam pipeline and the condensate water pipeline are located on the outer side of the box body. The pipeline of the heat exchange mechanism is further optimized, so that the whole structure is simpler, and compared with the previous complicated pipeline design, the production cost is reduced, and the later pipeline overhaul and maintenance are facilitated.

Description

Technical Field

[0001] The utility model relates to the technical field of coating machine ovens, in particular to a coating machine oven heating device and a coating machine oven. Background Art

[0002] During the manufacturing process of lithium batteries, after the substrate is coated, the slurry coated on the substrate needs to be dried in the box, and the pole piece drying methods mainly include: electric heating, steam heating, thermal oil, etc. At present, most ovens use a double-layer oven structure, in which the heating structure is also divided into double-layer heating, and the pipeline is designed with a double-layer pipeline structure.

[0003] For example, a drying oven disclosed in Chinese patent CN218797076U, in order to achieve the purpose of heat exchange, is specifically provided with a first heating component and a second heating component, a first branch pipe and a second branch pipe, and a main pipe and other structures, and these arrangements are used to achieve the effect of two-layer hot air delivery, that is, the double-layer pipeline design is required to achieve the double-layer heating effect, then the proportional valve, stop valve and other components used therein need to be provided in two sets, the structure is complex and there are more safety problems such as hidden dangers of air leakage, and it is not convenient for subsequent maintenance work. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a coating machine oven heating device and a coating machine oven with a simple structure and more optimized pipelines.

[0005] In order to solve the above technical problems, the technical solution used in the utility model is: a coating machine oven heating device, comprising a box body, and an air supply duct located in the box body, the air supply duct is provided with an air inlet and an air outlet that are interconnected, the air inlet is located at one end of the box body, and the air outlet is located at the other end of the box body;

[0006] The box body is also provided with a heat exchange mechanism, which includes a heat exchanger, a steam pipe and a condensate pipe. The steam pipe and the condensate pipe are respectively connected to the heat exchanger. The heat exchanger is located in the box body and close to the air inlet. The steam pipe and the condensate pipe are located outside the box body.

[0007] Preferably, the air supply duct includes a first air supply duct and a second air supply duct that are connected to each other, the first air supply duct and the second air supply duct both include an air inlet and an air outlet, the air outlet of the first air supply duct and the air outlet of the second air supply duct are spaced apart, and the air inlet of the first air supply duct is connected to the air inlet of the second air supply duct.

[0008] Preferably, filters are provided in the first air supply duct and the second air supply duct near the air outlet, and an operating door is provided on the box body, the operating door is hinged to the box body, and the operating door is located on the outside of the first air supply duct and the second air supply duct.

[0009] Preferably, the filter is a micron dust filter.

[0010] Preferably, the diameter of the air outlet is smaller than the diameter of the air supply duct.

[0011] Preferably, one end of the first air supply duct and the second air supply duct close to the air outlet are both inclined toward the air outlet.

[0012] Preferably, the steam pipe includes a steam inlet, a steam outlet, a first ventilation pipe and a second ventilation pipe, one end of the first ventilation pipe and the second ventilation pipe are connected to the steam inlet, the other ends of the first ventilation pipe and the second ventilation pipe are connected to the steam outlet, one end of the heat exchanger is connected to the steam outlet, and the other end is connected to the condensate pipe.

[0013] Preferably, a flow controller is provided on the first ventilation pipe, and the flow controller includes a control valve and a connecting pipe, one end of the connecting pipe is connected to the first ventilation pipe, and the other end is connected to the control valve.

[0014] Preferably, the heat exchanger is provided with a heat exchange coil, and the heat exchange coil is a U-shaped heat exchange coil, or;

[0015] The heat exchange coil is a finned heat exchange coil.

[0016] A coating machine oven comprises a drying device and also comprises an oven heating device as described in any of the above preferred embodiments, the drying device comprises a cavity, a feed port, a discharge port and a hot air duct, the hot air duct is connected to the discharge port, the feed port is located at one end of the cavity, the discharge port is located at the other end of the cavity, and a substrate transport mechanism is also provided in the cavity, and the substrate transport mechanism is located between the feed port and the discharge port.

[0017] The beneficial effects of the utility model are mainly reflected in: first, a coating machine oven heating device and a coating machine oven provided by the utility model further optimize the pipeline of the heat exchange mechanism to make its overall structure simpler, compared with the previous complex pipeline design, the production cost is reduced, and the later pipeline inspection and maintenance are convenient; in addition, the hot air is discharged by setting two layers of air outlets, and the substrate coating can be dried on both sides respectively, which further improves the production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other purposes, features and advantages of the present invention will become more apparent through a more specific description of the preferred embodiments of the present invention shown in the accompanying drawings. The same reference numerals in all the accompanying drawings indicate the same parts, and the drawings are not intentionally scaled to the actual size, but the focus is on illustrating the subject matter of the present invention.

[0019] Figure 1 This is a schematic diagram of the first perspective of the oven heating device of the coating machine in the utility model;

[0020] Figure 2 It is a schematic diagram of a cross-sectional view of the oven heating device of the coating machine in the utility model;

[0021] Figure 3 This is a schematic diagram from a second viewing angle of the oven heating device of the coating machine in the utility model.

[0022] In the figure: box body 1, air supply duct 11, first air supply duct 110, second air supply duct 111, air inlet 112, air outlet 113, operating door 12, heat exchange mechanism 13, heat exchanger 131, steam pipe 132, steam inlet 1321, steam outlet 1322, first ventilation pipe 1323, second ventilation pipe 1324, flow controller 1325, condensate pipe 133. DETAILED DESCRIPTION

[0023] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0024] It should be noted that when an element is considered to be "connected" to another element, it may be directly connected to another element and integrated therewith, or there may be an intermediate element at the same time. The terms "installed", "one end", "the other end" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art. The terms used in the specification herein are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] refer to Figure 1-3 The utility model provides a coating machine oven heating device, comprising a box body 1 and an air supply duct located in the box body 1, the air supply duct is provided with an air inlet 112 and an air outlet 113 which are interconnected, the air inlet 112 is located at one end of the box body 1, and the air outlet 113 is located at the other end of the box body 1;

[0027] A heat exchange mechanism 13 is also provided on the box body 1, and the heat exchange mechanism 13 includes a heat exchanger, a steam pipe and a condensate pipe 133. The steam pipe and the condensate pipe 133 are respectively connected to the heat exchanger. The heat exchanger is located inside the box body 1 and close to the air inlet 112. The steam pipe and the condensate pipe 133 are located outside the box body 1.

[0028] Specifically, the coating machine oven heating device provided in this embodiment has the following specific working process:

[0029] First, the high-temperature steam is transported to the heat exchanger through the steam pipe. The heat exchanger is equipped with a heat exchange coil. The steam passes through the heat exchange coil to increase the temperature. The air inlet 112 can be connected to an external exhaust device to input fresh air to the air inlet 112. Since the air inlet 112 inputs cold air (natural wind), the cold air forms a large temperature difference with the high-temperature steam in the heat exchange coil when passing through the heat exchanger, thereby performing heat exchange. The heat is transferred from high temperature to low temperature. Therefore, the cold air absorbs the heat of the high-temperature steam, thereby forming hot air discharged from the air outlet 113. After the heat of the original high-temperature steam is absorbed, the temperature drops to form condensed water, which is then discharged through the condensed water pipe 133, and so on. (This principle belongs to the more common heat exchange working principle)

[0030] However, the coating machine oven heating device provided in this embodiment is further optimized in structure compared to the conventional double-layer oven. In the past, most double-layer ovens needed to use two sets of heat exchange mechanisms 13 to exchange heat between the upper and lower layers of fresh air. In this embodiment, through improvement, only one set of heat exchange mechanism 13 is needed (that is, only one heat exchanger, one set of steam pipes and one set of condensate pipes 133 are needed) to achieve heat exchange between the upper and lower layers of cold air, which greatly simplifies the structure of the product, optimizes the pipeline structure and saves production costs. The original traditional double-pipeline / multi-pipeline structure would have inconsistent pipeline pressures, resulting in uneven heat. Now, only one pipeline is used to make the heat more concentrated and the heating efficiency is guaranteed.

[0031] refer to Figure 1-3In a preferred embodiment, the air supply duct includes a first air supply duct 110 and a second air supply duct 111 connected to each other, and the first air supply duct 110 and the second air supply duct 111 both include an air inlet 112 and an air outlet 113, the air outlet 113 of the first air supply duct 110 and the air outlet 113 of the second air supply duct 111 are spaced apart, the air inlet 112 of the first air supply duct 110 is connected to the inlet air of the second air supply duct 111, or the air inlet 112 of the first air supply duct 110 and the air inlet 112 of the second air supply duct 111 are spaced apart. In this embodiment, by providing the first air supply duct 110 and the second air supply duct 111, the two air outlets 113 are provided, so as to dry the upper and lower surfaces of the lithium battery coated substrate, and the working efficiency is higher; and the two air outlets 113 are arranged at intervals, so that the heat between the upper and lower layers of the air outlets 113 will not affect each other. Further, the heat from the upper layer will not flow to the lower layer, and there will be no uneven heat, thereby ensuring that the heat between the upper and lower layers of the air outlets 113 will be discharged more evenly and more concentratedly.

[0032] In a further preferred embodiment, the air inlet 112 of the first air supply duct 110 and the air inlet 112 of the second air supply duct 111 can be spaced apart. In one embodiment, a partition can be added at the air inlets 112 of the first air supply duct 110 and the second air supply duct 111 to isolate the upper air inlet 112 from the lower air inlet 112. When connected to an external air supply device, layered air supply can be achieved. The two air inlets 112 can be connected to the same air supply device or to different air supply devices. When connected to different air supply devices, the effect of separate air supply can be achieved. When only one-side drying of the substrate is required, separate air supply to the upper layer or to the lower layer can be adopted, which is more energy-saving and environmentally friendly.

[0033] In another embodiment, the air inlet 112 of the first air supply duct 110 and the air inlet 112 of the second air supply duct 111 may also be arranged with an end spacing (the end referred to here refers to the position where the air inlet 112 is connected to the external conveying equipment, not the inside of the duct), that is, the inside of the air inlet 112 is connected, which is convenient for connecting to the external air supply equipment. The specific method can be set according to the needs of the actual process.

[0034] refer to Figure 1-3In a preferred embodiment, filters (not shown) are provided in the first air supply duct 110 and the second air supply duct 111 near the air outlet 113, and an operating door 12 is provided on the box body 1. The operating door 12 is hinged to the box body 1 and is located outside the first air supply duct 110 and the second air supply duct 111. The position of the operating door 12 corresponds to the position where the filter is installed, so as to facilitate the removal and installation of the filter.

[0035] refer to Figure 1-3 In a preferred embodiment, the filter is a micron dust filter. In this embodiment, the filtering method of the micron dust filter will not hinder the normal delivery of hot air, and can filter out most of the dust and other particles, avoiding impurities in the hot air from contaminating the substrate coating and affecting the quality of the substrate. It is also easy to clean and has a low cost.

[0036] refer to Figure 1-3 In a preferred embodiment, the diameter of the air outlet 113 is smaller than the diameter of the air supply duct. Through such an arrangement, the heat of the hot air delivered by the air outlet 113 can be more concentrated, and the drying effect is better.

[0037] refer to Figure 1-3 In a preferred embodiment, the ends of the first air supply duct 110 and the second air supply duct 111 close to the air outlet 113 are both inclined toward the air outlet 113. Figure 2 A slope is formed at the place where the air supply duct is connected to the air outlet 113. The slope is arranged toward the air outlet 113, which can guide the hot air and also make the heat more concentrated.

[0038] refer to Figure 1-3 In a preferred embodiment, the steam pipe 132 includes a steam inlet 1321, a steam outlet 1322, a first ventilation pipe 1323 and a second ventilation pipe 1324. One end of the first ventilation pipe 1323 and the second ventilation pipe 1324 are connected to the steam inlet 1321, and the other end of the first ventilation pipe 1323 and the second ventilation pipe 1324 are connected to the steam outlet 1322. One end of the heat exchanger 131 is connected to the steam outlet 1322, and the other end is connected to the condensate pipe 133. For details, please refer to Figure 1 The first ventilation pipe 1323 and the second ventilation pipe 1324 are both connected to the steam inlet 1321 and the steam outlet 1322, so that both ventilation pipes can transport high-temperature steam to the heat exchanger 131. When the first ventilation pipe 1323 has a problem and cannot be used, the second ventilation pipe 1324 can be used to transport steam, thereby ensuring the normal operation of the heating work.

[0039] refer to Figure 1-3In a preferred embodiment, a flow controller 1325 is provided on the first ventilation pipe 1323. The flow controller 1325 includes a control valve and a connecting pipe. One end of the connecting pipe is connected to the first ventilation pipe 1323, and the other end is connected to the control valve. The flow controller 1325 can be used to control the amount of steam intake.

[0040] In a preferred embodiment, the heat exchanger 131 is provided with a heat exchange coil, and the heat exchange coil is a U-shaped heat exchange coil, or;

[0041] The heat exchange coil is a finned heat exchange coil. Of course, in addition to these two types of heat exchange coils, other heat exchange coils can also be used as long as the purpose of air heating can be achieved. In this embodiment, the heat exchanger 131 is preferably a finned tube heat exchanger 131, which has a higher heat exchange efficiency.

[0042] In a further preferred embodiment, the heating medium of the coating machine oven heating device provided by the utility model can adopt a heating method of heat transfer oil in addition to a heating method of high-temperature steam.

[0043] The utility model also provides a coating machine oven, including a drying device (not shown), and also includes an oven heating device as described in any of the above embodiments, the drying device includes a cavity, a feed port, a discharge port and a hot air duct, the hot air duct is connected to the air outlet 113, the feed port is located at one end of the cavity, and the discharge port is located at the other end of the cavity, and a substrate transport mechanism is also provided in the cavity, and the substrate transport mechanism is located between the feed port and the discharge port.

[0044] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present application. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present application.

Claims

1. A coating machine oven heating device, characterized in that: It comprises a box body and an air supply duct located in the box body, wherein the air supply duct is provided with an air inlet and an air outlet which are interconnected, wherein the air inlet is located at one end of the box body and the air outlet is located at the other end of the box body; The box body is also provided with a heat exchange mechanism, which includes a heat exchanger, a steam pipe and a condensate pipe. The steam pipe and the condensate pipe are respectively connected to the heat exchanger. The heat exchanger is located in the box body and close to the air inlet. The steam pipe and the condensate pipe are located outside the box body.

2. The coating machine oven heating device according to claim 1, characterized in that: The air supply duct includes a first air supply duct and a second air supply duct connected to each other, each of the first air supply duct and the second air supply duct includes an air inlet and an air outlet, the air outlet of the first air supply duct and the air outlet of the second air supply duct are spaced apart, and the air inlet of the first air supply duct is connected to the air inlet of the second air supply duct.

3. The coating machine oven heating device according to claim 2, characterized in that: Filters are provided in the first air supply duct and the second air supply duct near the air outlet, and an operating door is provided on the box body. The operating door is hinged to the box body and is located outside the first air supply duct and the second air supply duct.

4. The coating machine oven heating device according to claim 3, characterized in that: The filter is a micron dust filter.

5. The coating machine oven heating device according to claim 1, characterized in that: The diameter of the air outlet is smaller than the diameter of the air supply duct.

6. The coating machine oven heating device according to claim 2, characterized in that: One end of the first air supply duct and the second air supply duct close to the air outlet is inclined toward the air outlet.

7. The coating machine oven heating device according to claim 1, characterized in that: The steam pipe includes a steam inlet, a steam outlet, a first ventilation pipe and a second ventilation pipe, one end of the first ventilation pipe and the second ventilation pipe are connected to the steam inlet, the other ends of the first ventilation pipe and the second ventilation pipe are connected to the steam outlet, one end of the heat exchanger is connected to the steam outlet, and the other end is connected to the condensate pipe.

8. The coating machine oven heating device according to claim 7, characterized in that: The first ventilation pipe is provided with a flow controller, and the flow controller includes a control valve and a connecting pipe, one end of the connecting pipe is communicated with the first ventilation pipe, and the other end is connected to the control valve.

9. The coating machine oven heating device according to claim 1, characterized in that: The heat exchanger is provided with a heat exchange coil, and the heat exchange coil is a U-shaped heat exchange coil, or; The heat exchange coil is a finned heat exchange coil.

10. A coating machine oven, characterized in that: It includes a drying device and also includes the oven heating device as described in any one of claims 1 to 9, the drying device includes a cavity, a feed port, a discharge port and a hot air duct, the hot air duct is connected to the outlet, the feed port is located at one end of the cavity, the discharge port is located at the other end of the cavity, and a substrate transport mechanism is also provided in the cavity, and the substrate transport mechanism is located between the feed port and the discharge port.

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