Heat exchange assembly and drying furnace equipment thereof
By setting up multiple interconnected heat exchangers and heating chambers in the drying oven, the problems of inconvenient disassembly and maintenance of heat exchangers and low air temperature are solved, thus achieving high-efficiency operation of the drying oven.
Patent Information
- Application Number
- CN202423011122.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-06
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-12-06
AI Technical Summary
The heat exchangers of existing drying ovens are inconvenient to disassemble and maintain, and the air temperature after heat exchange is low, which affects drying efficiency.
Design a heat exchange assembly comprising multiple interconnected heat exchangers and a heating chamber, which raises the air temperature and allows for disassembly by removing only the corresponding heat exchanger, thus improving maintenance efficiency.
This allows for convenient disassembly and maintenance of the heat exchanger and increases the temperature of the air entering the drying oven, thereby improving the efficiency of the drying oven.
Smart Images
Figure CN223500193U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of drying equipment, and in particular relates to a heat exchange component and its drying oven equipment. Background Technology
[0002] Existing drying ovens typically incorporate heat exchangers for heat energy recovery. Outside air is heated by passing through the heat exchanger before entering the oven body. To maximize heat recovery and improve the recovery rate, the heat exchangers are usually quite long. However, heat exchangers are typically integrated units, requiring complete disassembly for maintenance, which is inconvenient and inefficient. Furthermore, the air heated by the heat exchanger remains relatively cold, and its direct entry into the drying oven can negatively impact drying efficiency.
[0003] Therefore, there is an urgent need to design a heat exchange component to solve the technical problems of inconvenient disassembly and maintenance of the heat exchanger and low air temperature after heat exchange and heating, which leads to low efficiency of the drying oven.
[0004] It should be noted that the information disclosed in this background section is only for understanding the background technology of this application concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0005] This disclosure provides at least one heat exchange component and its drying oven equipment.
[0006] In a first aspect, embodiments of this disclosure provide a heat exchange assembly, comprising: at least two heat exchangers disposed on the exhaust gas path of a drying oven, and each having an internal heat exchange component; wherein the two heat exchangers are connected to each other, and the heat exchange component is configured to be connected to external air; and
[0007] The heating chamber is located below the heat exchanger and is connected to the heat exchange component. The bottom of the heating chamber has an air outlet that connects to the drying oven. After the outside air exchanges heat with the hot air discharged from the drying oven through the heat exchange component, it enters the heating chamber and is heated in the heating chamber before entering the drying oven through the air outlet.
[0008] In one alternative embodiment, the heating cavity is elongated, with a length greater than the length of the two heat exchangers joined together.
[0009] The air outlet is located at the bottom of the heating chamber on the side away from the heat exchanger, so as to form an elongated heating space inside the heating chamber.
[0010] In one alternative embodiment, the heating chamber is located at the top of the drying oven to obtain heat radiation from the top of the drying oven.
[0011] In one optional embodiment, the outer wall of the heat exchanger is welded and fixed with several sheet metal parts, and the sheet metal parts of adjacent heat exchangers are fixed by angle bracket bolts to realize the splicing of heat exchangers.
[0012] In one alternative embodiment, the heat exchanger includes a housing;
[0013] The heat exchange component includes several heat exchange tubes arranged in a uniform manner, with heat exchange gaps between each heat exchange tube.
[0014] Each of the aforementioned boxes has an airflow port on its side wall, so that hot air flows into the box through one side airflow port and exchanges heat with the heat exchange tube, and then flows out from the other side airflow port.
[0015] In one alternative embodiment, a cover is provided to cover the sides and top of the housing, with gaps to form a cold air chamber arranged along the heat exchange components, and an air inlet is provided on the cover.
[0016] In one optional embodiment, the air inlet is located in the casing corresponding to the middle position of the two heat exchangers, so as to evenly distribute the airflow into the two heat exchangers.
[0017] Secondly, this disclosure also provides a heat exchange assembly, including: at least two heat exchangers, which are disposed on the hot gas path of the drying oven and have heat exchange components inside; wherein, the two heat exchangers are spliced and connected to each other, and an air inlet is provided in the middle of the two heat exchangers to evenly distribute the airflow into the two heat exchangers.
[0018] In one optional embodiment, a heating chamber is disposed below a heat exchanger. The heating chamber is connected to a heat exchange component, and an air outlet is provided at the bottom of the heating chamber to connect to a drying oven. After external air exchanges heat with the hot air discharged from the drying oven through the heat exchange component, it enters the heating chamber, and after being heated in the heating chamber, it enters the interior of the drying oven through the air outlet.
[0019] The air outlet is located at the bottom of the heating chamber on the side away from the heat exchanger, so as to form an elongated heating space inside the heating chamber.
[0020] Thirdly, embodiments of this disclosure also provide a drying oven apparatus, including: a heat exchange assembly as described above; and
[0021] The furnace body has an assembly station on its top wall, the heating chamber is installed in the assembly station, and the gas outlet is connected to the interior of the furnace body.
[0022] The beneficial effects of this utility model are that by setting up multiple heat exchangers, only the corresponding heat exchanger needs to be disassembled during maintenance, which improves the efficiency of disassembly and maintenance. By setting up a heating chamber, the temperature of the air entering the drying oven is increased, thus achieving a high-efficiency drying effect in the drying oven.
[0023] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description, claims, and drawings.
[0024] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description
[0025] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0026] Figure 1 A perspective view of a heat exchange component provided in an embodiment of this disclosure;
[0027] Figure 2 An exploded view of a heat exchange component provided in an embodiment of this disclosure;
[0028] Figure 3 A cross-sectional view of a heat exchange component provided in an embodiment of this disclosure;
[0029] Figure 4 Another cross-sectional view of a heat exchange assembly provided in an embodiment of this disclosure;
[0030] Figure 5 This is a cross-sectional view of a drying oven apparatus provided in an embodiment of this disclosure.
[0031] In the picture:
[0032] 1. Heat exchanger; 11. Heat exchange components; 12. Housing; 13. Heat exchange tubes; 14. Air inlet; 15. Cover; 16. Cold air chamber; 17. Air inlet; 18. Heat exchange gap;
[0033] 2. Heating chamber; 21. Air outlet;
[0034] 3. Sheet metal;
[0035] 4. Furnace body; 41. Assembly station. Detailed Implementation
[0036] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0037] Research has revealed that existing drying ovens typically incorporate heat exchangers for heat energy recovery. Outside air is heated by passing through the heat exchanger before entering the oven. To maximize heat recovery and improve the recovery rate, the heat exchangers are often quite long. However, these heat exchangers are usually integrated units, requiring complete disassembly for maintenance, which is inconvenient and inefficient. Furthermore, the air heated by the heat exchanger remains relatively cold, and its direct entry into the drying oven negatively impacts drying efficiency.
[0038] Therefore, there is an urgent need to design a heat exchange component to solve the technical problems of inconvenient disassembly and maintenance of the heat exchanger and low air temperature after heat exchange and heating, which leads to low efficiency of the drying oven.
[0039] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0040] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.
[0041] Based on the above research, and in order to solve the aforementioned technical problems, refer to Figure 1 At least one embodiment provides a heat exchange assembly, including: at least two interconnected heat exchangers 1, which are arranged in the path of the exhaust gas from the drying oven and have a heat exchange component 11 inside. The heat exchange component 11 is adapted to allow external air to pass through it. A heating chamber 2 is provided below the heat exchanger 1, and the heat exchange component 11 is connected to the heating chamber 2. When the external air flows through the heat exchange component 11, it exchanges heat with the exhaust gas from the drying oven. After heat exchange, the external air enters the heating chamber 2 for heating. An air outlet 21 is provided at the bottom of the heating chamber 2, which is connected to the drying oven. The heated external air then enters the drying oven through the air outlet 21. With the arrangement of the above components, only the corresponding heat exchanger 1 that needs maintenance needs to be disassembled when disassembling and maintaining the heat exchange assembly, which improves the efficiency of disassembly and maintenance. In addition, the heating chamber 2 increases the temperature of the air entering the drying oven, achieving a high-efficiency drying effect for the drying oven.
[0042] Reference Figure 2 and Figure 5 In some embodiments, to achieve the desired heating effect, the heating chamber 2 is elongated, with a length greater than the combined length of the heat exchangers 1. The air outlet 21 is located at the bottom of the heating chamber 2, away from the heat exchangers 1, so that external air entering the elongated heating chamber 2 is fully heated, flows completely through the heating chamber 2, and then enters the drying oven through the air outlet 21. It should be noted that the heating chamber 2 is located at the top of the drying oven so that the air outlet 21 connects to the interior of the drying oven, and the external air is heated by thermal radiation from the top of the drying oven.
[0043] Reference Figure 2 In some embodiments, to enable interconnection between heat exchangers 1, several sheet metal parts 3 are welded and fixed to the outer wall of heat exchanger 1. The sheet metal parts 3 of adjacent heat exchangers 1 are fixed by angle bracket bolts to enable interconnection between heat exchangers 1. Heat exchanger 1 includes a housing 12, and airflow ports 14 are provided on the side walls of the housing 12 along the length direction of the heat exchange component 11 to enable interconnection between heat exchangers 1.
[0044] Reference Figure 2 In some embodiments, to achieve the heat exchange effect of the heat exchange component 11, it includes several rows of uniformly arranged heat exchange tubes 13. The heat exchange tubes 13 are disposed inside the housing 12, and there are heat exchange gaps 18 between the heat exchange tubes 13. Hot air enters the housing 12 through the airflow port 14 and flows through the heat exchange gaps 18 between the heat exchange tubes 13. The external air inside the heat exchange tubes 13 exchanges heat with the hot air outside the heat exchange tubes 13, thereby achieving the above-mentioned effect. It is worth mentioning that the heat exchange tubes 13 are preferably metal tubes to improve the heat exchange effect.
[0045] Reference Figure 2 , Figure 3 and Figure 4 In some embodiments, to allow external air to enter the heat exchange tube 13, the top plate of the housing 12 and the side wall without the airflow port 14 are covered with a cover 15. The cover 15 and the housing 12 form a cold air chamber 16, which is L-shaped. The heat exchange tube 13 connects the cold air chamber 16 and the heating chamber 2. External air enters the heat exchange tube 13 from the cold air chamber 16, exchanges heat with the hot air in the housing 12, and then enters the heating chamber 2. To provide external air to the cold air chamber 16, an air inlet 17 is provided at the center of the side wall of the cold air chamber 16 along its length. Preferably, the air inlet 17 is equipped with a blower to provide gas to the cold air chamber 16. It is worth mentioning that the air inlet 17 is located at the center of its length so that the gas delivered into the cold air chamber 16 by the blower can flow evenly to both sides, that is, the gas entering the heat exchange tube 13 is more uniform.
[0046] Reference Figure 5At least one embodiment provides a drying oven device, including: a heat exchange component and a furnace body 4 as described above. Hot air discharged from the furnace body 4 is sent into the heat exchange component via a blower. A condenser is connected to the other end of the heat exchange component to cool the hot air flowing through it before discharge. An assembly station 41 is provided on the top wall of the furnace body 4. The heating chamber 2 of the heat exchange component is installed in the assembly station 41, and the air outlet 21 communicates with the interior of the furnace body 4. Through the arrangement of the above components, the heating chamber 2 heats the external air through the temperature of the furnace body's top wall, increasing the temperature of the air entering the furnace body 4, thereby achieving high-efficiency drying in the drying oven.
[0047] As used herein, the phrases “at least one embodiment,” “in some embodiments,” etc., generally refer to the fact that a particular feature, structure, or characteristic following the phrase can be included in at least one embodiment of this disclosure. Therefore, a particular feature, structure, or characteristic can be included in more than one embodiment of this disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, the terms “example,” “exemplary,” etc., are used to “serve as an example, instance, or illustration.” Any implementation, aspect, or design described herein as “example” or “exemplary” is not necessarily to be construed as preferred or superior to other implementations, aspects, or designs. Rather, the use of the terms “example,” “exemplary,” etc., is intended to present concepts in a specific manner.
[0048] In the description of the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0049] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, terms such as "first," "second," and other numerical terms used herein do not imply order or sequence unless expressly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer, or segment discussed above may be referred to as the second element, component, region, layer, or segment.
[0050] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.
Claims
1. A heat exchange component, characterized in that, include: At least two heat exchangers (1) are arranged in the exhaust gas path of the drying oven and have internal heat exchange components (11); wherein the two heat exchangers (1) are connected to each other, and the heat exchange components (11) are configured to be connected to external air; and The heating chamber (2) is located below the heat exchanger (1). The heating chamber (2) is connected to the heat exchange component (11), and the bottom of the heating chamber (2) is provided with an air outlet (21) that connects to the drying oven. After the external air exchanges heat with the hot air discharged from the drying oven through the heat exchange component (11), it enters the heating chamber (2) and is heated in the heating chamber (2) before entering the drying oven through the air outlet (21).
2. The heat exchange assembly as described in claim 1, characterized in that, The heating chamber (2) is long and narrow, and its length is greater than the length of the two heat exchangers (1) after being spliced together; The air outlet (21) is located at the bottom of the heating chamber (2) on the side away from the heat exchanger (1) to form an elongated heating space inside the heating chamber (2).
3. The heat exchange component as described in claim 1, characterized in that, The heating chamber (2) is located at the top of the drying oven to obtain heat radiation from the top of the drying oven.
4. The heat exchange assembly as described in claim 1, characterized in that, The outer wall of the heat exchanger (1) is welded and fixed with several sheet metal (3), and the sheet metal (3) of adjacent heat exchangers (1) is fixed by angle bracket bolts to realize the splicing of heat exchangers (1).
5. The heat exchange assembly as described in claim 1, characterized in that, The heat exchanger (1) includes a housing (12); The heat exchange component (11) includes a plurality of uniformly arranged heat exchange tubes (13), and a heat exchange gap (18) is left between each heat exchange tube (13). Each of the boxes (12) has an airflow port (14) on its side wall so that the hot airflow flows into the box (12) through the airflow port (14) on one side and exchanges heat with the heat exchange tube (13), and flows out from the airflow port (14) on the other side.
6. The heat exchange assembly as described in claim 5, characterized in that, Also includes: A cover (15) covers the side and top of the box (12) with gaps to form a cold air chamber (16) arranged along the heat exchange component (11), and an air inlet (17) is provided on the cover (15).
7. The heat exchange assembly as described in claim 6, characterized in that, The air inlet (17) is located in the middle of the two heat exchangers (1) and is positioned in the cover (15) to distribute the airflow evenly into the two heat exchangers (1).
8. A heat exchange component, characterized in that, include: At least two heat exchangers (1) are arranged on the hot gas path of the drying oven and have heat exchange components (11) inside; wherein, the two heat exchangers (1) are connected to each other and an air inlet (17) is opened in the middle of the two heat exchangers (1) to distribute the airflow into the two heat exchangers (1).
9. The heat exchange assembly as described in claim 8, characterized in that, Also includes: Heating chamber (2) is located below heat exchanger (1). Heating chamber (2) is connected to heat exchange component (11). At the bottom of heating chamber (2), there is an air outlet (21) that connects to drying oven. After the outside air exchanges heat with the hot air discharged from drying oven through heat exchange component (11), it enters heating chamber (2) and is heated in heating chamber (2) before entering the interior of drying oven through air outlet (21). The air outlet (21) is located at the bottom of the heating chamber (2) on the side away from the heat exchanger (1) to form an elongated heating space in the heating chamber (2).
10. A drying oven device, characterized in that, include: The heat exchange assembly as described in any one of claims 1-9; and The furnace body (4) has an assembly station (41) on its top wall. The heating chamber (2) is installed in the assembly station (41) and the gas outlet (21) is connected to the interior of the furnace body (4).