Heat exchange air bellow, combustion tower and sintering furnace equipment thereof

Abstract

The utility model belongs to the technical field of drying equipment, and particularly relates to a heat exchange air bellow, a combustion tower and sintering furnace equipment thereof.The heat exchange air bellow comprises an air bellow body which is arranged on a waste gas exhaust path of a heating furnace, a heat exchange assembly is arranged in the air bellow body, and the heat exchange assembly is communicated with the heating furnace; and an air inlet suitable for external cold air to enter is formed in the heat exchange assembly, so that the external cold air enters the heating furnace after exchanging heat with hot waste gas flowing through the box body through the heat exchange assembly. The heat exchanger with the heat exchange pipe is additionally arranged on the waste gas exhaust path of the heating furnace, waste gas waste heat is used for heating cold air flowing through the heat exchange pipe, the heated cold air flows into the heating furnace, generated heat energy is used for sintering battery pieces, the effect of recycling the heat energy of exhausted waste gas is achieved, and energy consumption is greatly reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of drying equipment, and particularly relates to a heat exchange air box, a combustion tower and a sintering furnace device thereof. Background Art

[0002] When preparing solar photovoltaic cells, after the conductive paste is printed on the surface of the silicon wafer, it needs to be dried and cured by a sintering furnace. A large amount of heat is generated during the sintering process. Part of the heat will be discharged through the combustion tower, but there is still a part of the remaining heat that cannot reach the combustion tower and be discharged. The combustion tower of the existing sintering furnace device cannot recover the remaining heat energy, resulting in low heat energy utilization rate, resource waste and high energy consumption.

[0003] Therefore, it is urgent to design a heat exchanger to solve the above technical problems of resource waste and high energy consumption.

[0004] It should be noted that the above information disclosed in this background art section is only used to understand the background art of the concept of this application, and therefore, it may include information that does not constitute the prior art. Summary of the Utility Model

[0005] The embodiments of the present disclosure at least provide a heat exchange air box, a combustion tower and a sintering furnace device thereof.

[0006] In a first aspect, an embodiment of the present disclosure provides a heat exchange air box, including: a box body, which is arranged on the exhaust gas path of the heating furnace and internally provided with a heat exchange component;

[0007] Wherein, the heat exchange component is communicated with the heating furnace, and an air inlet suitable for external cold air to enter is arranged on the heat exchange component, so that the external cold air enters the heating furnace after exchanging heat with the hot exhaust gas flowing through the box body through the heat exchange component.

[0008] In an optional implementation manner, the heat exchange component includes a plurality of heat exchange tubes arranged inside the box body, and the heat exchange tubes are orthogonally arranged with respect to the bottom surface of the box body.

[0009] In an optional implementation manner, an air outlet hood is arranged on the bottom surface of the box body;

[0010] One end of the heat exchange tube is communicated with the cold air inlet of the heating furnace through the air outlet hood.

[0011] In an optional implementation manner, the heat exchange tubes are respectively arranged in a plurality of rows and a small number of rows, and the plurality of rows and the small number of rows are arranged at intervals.

[0012] In an optional implementation manner, an air inlet is provided in the upper part of the side wall of the box body; and

[0013] Another side wall opposite to the box body has an air outlet;

[0014] The air inlet and the air outlet are arranged in a dislocation manner so that an inclined air duct suitable for passing through the heat exchange component is formed between the air inlet and the air outlet.

[0015] In an optional embodiment, the heat exchange component further includes a box-shaped cover body arranged on the top surface of the box body, and the box-shaped cover body and the top surface of the box body form a cold air inlet cavity.

[0016] A blower is arranged on the side wall of the box-shaped cover body, and the blower is suitable for introducing external cold air into the air inlet cavity.

[0017] In an optional embodiment, an air inlet pipe is communicated with the air suction port of the blower;

[0018] A filter is arranged at one end of the air inlet pipe far away from the air suction port of the blower.

[0019] In a second aspect, an embodiment of the present disclosure further provides a combustion tower, including: the heat exchange air box as described above;

[0020] The combustion tower further includes a combustion chamber and a condenser; wherein

[0021] The air inlet of the combustion chamber is communicated with the waste gas outlet of the heating furnace, the exhaust port of the combustion chamber is communicated with the air inlet of the heat exchange air box, and the waste gas is suitable for being combusted and decomposed in the combustion chamber; and

[0022] At least two horizontal partition plates are arranged in the combustion chamber, and the number of partition plates is an even number, so as to divide the combustion chamber into at least three combustion cavities, and the waste gas flows in an S-shaped flow mode along the partition plates in the combustion chamber;

[0023] The condenser is communicated with the air outlet of the heat exchange air box and is suitable for reducing the temperature of the hot waste gas.

[0024] In a third aspect, an embodiment of the present disclosure further provides a sintering furnace device, including: the combustion tower as described above;

[0025] The sintering furnace device further includes a heating furnace, and the combustion tower is arranged on the exhaust gas path of the heating furnace.

[0026] In a fourth aspect, an embodiment of the present disclosure further provides a sintering furnace device, including:

[0027] A heating furnace; and

[0028] The heat exchange air box arranged on the exhaust gas path of the heating furnace.

[0029] The beneficial effects of the present utility model are as follows. By adding a heat exchanger with heat exchange tubes in the exhaust gas path of the heating furnace grate, the waste heat of the exhaust gas is utilized to heat the cold air flowing through the heat exchange tubes, and the heated cold air flows into the heating furnace. The generated heat energy is used for the sintering of solar cells, achieving the effect of recovering the heat energy of the discharged exhaust gas and significantly reducing the energy consumption.

[0030] Other features and advantages of the present utility model will be described in the following specification, and some of them will become obvious from the specification or can be understood by implementing the present utility model. The objectives and other advantages of the present utility model are achieved and obtained by the structures specifically pointed out in the specification, claims, and drawings.

[0031] To make the above objectives, features, and advantages of the present utility model more obvious and understandable, the following specifically gives preferred embodiments and, in conjunction with the accompanying drawings, the detailed description is as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the specific embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0033] Figure 1 Structural schematic diagram of a heat exchange air box provided by an embodiment of the present disclosure;

[0034] Figure 2 Cross-sectional schematic diagram of a heat exchange air box provided by an embodiment of the present disclosure;

[0035] Figure 3 Three-dimensional view of a combustion tower provided by an embodiment of the present disclosure;

[0036] Figure 4 Schematic diagram of the arrangement of heat exchange tubes provided by an embodiment of the present disclosure.

[0037] In the figure:

[0038] 1. Box body;

[0039] 2. Heat exchange assembly; 21. Air inlet; 22. Heat exchange tube;

[0040] 3. Air inlet;

[0041] 4. Air outlet;

[0042] 5. Box-shaped cover;

[0043] 6. Blower; 61. Air inlet pipe; 62. Filter;

[0044] 7. Air outlet hood;

[0045] 8. Combustion chamber;

[0046] 9. Condenser. Detailed implementation manners

[0047] For the purpose of making the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions of the present utility model will be clearly and completely described below with reference to the drawings. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.

[0048] The following will describe in detail some embodiments of the present utility model with reference to the drawings. Without conflict, the following embodiments and the features in the embodiments can be combined with each other.

[0049] It should be noted that: Similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings. In addition, in the drawings, for the purpose of effectively describing the technical content, the thickness of the components can be exaggerated or reduced.

[0050] Referring to Figure 1 , at least one embodiment provides a heat exchange air box, including: a box body 1, which is arranged on the path of the waste gas of the heating grate and internally provided with a heat exchange component 2. The heat exchange component 2 is communicated with the heating furnace, and is provided with an air inlet 21 suitable for the external cold air to enter. Figure 1 In, F is the flow direction of the external cold air. After the external cold air enters the heat exchange component 2 through the air inlet 21, it exchanges heat with the hot waste gas flowing through the box body 1, and then enters the heating furnace after being heated by heat exchange. The above equipment realizes the effect of recovering the heat energy of the discharged waste gas by adding a heat exchanger with a heat exchange component 2 on the path of the waste gas of the heating grate, and uses the waste heat of the waste gas to heat the cold air flowing through the heat exchange component 2 and used for the combustion of the heating furnace, thereby greatly reducing the energy consumption.

[0051] Referring to Figure 1 , in some embodiments, in order to achieve the effect of allowing the cold air to flow through the heat exchange component 2, the heat exchange component 2 includes a plurality of heat exchange tubes 22 arranged inside the box body 1. The heat exchange tubes 22 are orthogonally arranged with respect to the bottom surface of the box body 1. Preferably, the heat exchange tubes 22 are vertically arranged, so as to facilitate the cold air to flow from top to bottom under the influence of its own gravity, thereby improving the flow efficiency.

[0052] Referring to Figure 4, in some embodiments, the arrangement of the heat exchange tubes 22 is diverse, including but not limited to multi-row parallel arrangement, circumferential arrangement, irregular arrangement, etc. Preferably, the arrangement of each heat exchange tube 22 is multi-row distributed and uniform, specifically, it can be a majority of rows and a minority of rows. When the hot waste gas flows through the gaps between the heat exchange tubes 22, the heat exchange with the cold air inside the heat exchange tubes 22 will be more uniform, and the heat exchange effect will be better. In addition, each heat exchange tube 22 is a hollow cylinder, and the heat exchange tubes 22 in adjacent two rows (the majority of rows and the minority of rows) are arranged in a staggered manner. The above settings enable the hot waste gas to flow along the side wall of the cylinder when flowing through the gaps between the heat exchange tubes 22, with less resistance, good exhaust gas circulation effect, and the staggered arrangement between adjacent rows further enhances the sheet metal strength, and thus enhances the overall strength of the equipment.

[0053] Refer to Figure 2 , in some embodiments, an air inlet 3 is provided at the upper part of one side wall of the box body 1, and an air outlet 4 is provided at the lower part of the other side wall opposite to this side wall. The hot waste gas discharged from the heating furnace is adapted to enter the box body 1 from the air inlet 3 and then be discharged from the air outlet 4 to achieve the effect of the hot waste gas flowing through the inside of the box body 1. Preferably, the air inlet 3 is arranged obliquely downward to guide the hot waste gas to flow towards the bottom of the box body 1 when entering the box body 1, avoiding the hot waste gas from gathering at the top of the box body 1 after entering the box body 1 from the air inlet 3 at the upper part of the side wall, and achieving the effect of uniform distribution of the hot waste gas in the box body 1.

[0054] Refer to Figure 1 , in some embodiments, the heat exchange assembly 2 further includes a box-shaped cover body 5 provided on the top surface of the box body 1, and the box-shaped cover body 5 and the top surface of the box body 1 form a cold air inlet cavity. In order to guide the external cold air into the inlet cavity, a blower 6 is provided on the side wall of the box-shaped cover body 5. The suction port of the blower 6 is communicated with an air inlet pipe 61, and a filter 62 is provided at one end of the air inlet pipe 61 far from the air inlet 3 of the blower 6. When the blower 6 guides the external cold air to flow through the air inlet pipe 61, the cold air will be filtered by the filter 62 first and then enter the equipment interior, avoiding the reduction of the heat exchange effect caused by the impurity pollution of the heat exchange assembly 2.

[0055] Refer to Figure 1 , in some embodiments, an air outlet hood 7 is provided on the bottom surface of the box body 1. One end of the heat exchange tube 22 is communicated with the cold air inlet of the heating furnace through the air outlet hood 7. When the cold air is discharged from the heat exchange tube 22 after heat exchange with the hot waste gas, it will first gather in the air outlet hood 7 to complete the heat energy exchange between the cold air, making the heat energy of the gathered cold air uniform, that is, achieving the effect of recovering uniform heat energy.

[0056] Refer to Figure 3, in at least one embodiment, a combustion tower is further provided, comprising: the heat exchange air box as described above. In addition, the combustion tower further comprises a combustion chamber 8 and a condenser 9. The air inlet of the combustion chamber 8 is communicated with the waste gas outlet of the heating furnace, the exhaust port of the combustion chamber 8 is communicated with the air inlet 3 of the heat exchange air box, and the combustion chamber 8 is adapted to burn and decompose the waste gas. The condenser 9 is communicated with the air outlet 4 of the heat exchange air box and is adapted to discharge the hot waste gas after reducing its temperature. The above-mentioned heat exchange air box cooperates with the combustion chamber 8 and the condenser 9 to form a complete waste gas discharge path. It is also worth mentioning that an even number of horizontal partitions are arranged in the combustion chamber 8. Preferably, the number of the horizontal partitions is two, so as to divide the combustion chamber 8 into three combustion cavities. Each horizontal partition is provided with a ventilation port, the ventilation port is located at the end of the partition, and the ventilation ports of adjacent partitions are not at the same end, so as to enable the waste gas to flow in an S-shaped manner along the partition in the combustion chamber 8, and further enable the exhaust port of the combustion chamber 8 to be located above to correspond to the upper air inlet 3. The setting of the above components enables the waste gas to completely pass through all the combustion spaces in the combustion chamber 8, stay in the combustion chamber 8 for a longer time, and burn more fully.

[0057] Refer to Figure 3 , in at least one embodiment, a sintering furnace device is further provided, comprising: the combustion tower as described above. In addition, the sintering furnace device further comprises a heating furnace. The heating methods of the heating furnace include but are not limited to gas heating, electric heating, radiation heating, etc. The combustion tower is arranged on the waste gas discharge path of the heating furnace, and the combustion tower is located above the heating furnace to achieve the effect of connecting the heat exchange component 2 with the heating furnace, and further achieve the effect of heat energy recovery.

[0058] Refer to Figure 3 , in at least one embodiment, a sintering furnace device is further provided, comprising: a heating furnace; and the above-mentioned heat exchange air box arranged on the waste gas discharge path of the heating furnace.

[0059] As used herein, phrases such as "in one embodiment", "according to one embodiment", "in some embodiments", etc. generally refer to the fact that the specific features, structures or characteristics after such phrases can be included in at least one embodiment of the present disclosure. Therefore, specific features, structures or characteristics can be included in more than one embodiment of the present disclosure, such that these phrases do not necessarily refer to the same embodiment. As used herein, terms such as "example", "exemplary", etc. are used "for the purpose of serving as an example, instance or illustration. Any embodiment, aspect or design described herein as "example" or "exemplary" is not necessarily construed as being preferred or superior to other embodiments, aspects or designs. On the contrary, the use of terms such as "example", "exemplary", etc. is intended to present concepts in a specific manner.

[0060] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "coupled" shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention may be understood according to specific circumstances.

[0061] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention. In addition, terms such as "first", "second" and other numerical terms used herein do not imply an order or sequence unless explicitly indicated herein. Therefore, without departing from the teachings of the exemplary embodiments, the first element, component, region, layer or section discussed above may be referred to as the second element, component, region, layer or section.

[0062] Based on the above inspiration from the ideal embodiments of the present utility model, through the above description, relevant staff can completely make various changes and modifications without departing from the technical idea of the present utility model. The technical scope of the present utility model is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A heat exchange air box, characterized in that, Comprising: A box body (1) is arranged on the exhaust gas path of the heating furnace, and a heat exchange component (2) is arranged inside. Wherein, the heat exchange component (2) is communicated with the heating furnace, and an air inlet (21) suitable for external cold air to enter is arranged on the heat exchange component (2), so that after the external cold air exchanges heat with the hot exhaust gas flowing through the box body (1), it enters the interior of the heating furnace.

2. The heat exchange air box according to claim 1, characterized in that The heat exchange component (2) includes a plurality of heat exchange tubes (22) arranged inside the box body (1), and the heat exchange tubes (22) are orthogonally arranged relative to the bottom surface of the box body (1).

3. The heat exchange air box according to claim 2, characterized in that An air outlet hood (7) is arranged on the bottom surface of the box body (1); One end of the heat exchange tube (22) is communicated with the cold air inlet of the heating furnace through the air outlet hood (7).

4. The heat exchange air box according to claim 2, characterized in that Each heat exchange tube (22) is respectively arranged in a plurality of rows and a small number of rows, and the plurality of rows and the small number of rows are arranged at intervals.

5. The heat exchange air box according to claim 1, characterized in that The upper part of the side wall of the box body (1) has an air inlet (3); and The other side wall opposite to the box body (1) has an air outlet (4); The air inlet (3) and the air outlet (4) are arranged in a staggered manner, so as to form an inclined air duct suitable for passing through the heat exchange component (2) between the air inlet (3) and the air outlet (4).

6. The heat exchange air box according to claim 1, characterized in that The heat exchange component (2) further includes a box-shaped cover body (5) arranged on the top surface of the box body (1), and the box-shaped cover body (5) and the top surface of the box body (1) form a cold air inlet cavity; A blower (6) is arranged on the side wall of the box-shaped cover body (5), and the blower (6) is suitable for introducing external cold air into the inlet cavity.

7. The heat exchange air box according to claim 6, characterized in that An air inlet pipe (61) is communicated with the air suction port of the blower (6); A filter (62) is arranged at one end of the air inlet pipe (61) far away from the air suction port of the blower (6).

8. A combustion tower, characterized in that, Comprising: The heat exchange air box according to any one of claims 1-7; The combustion tower further includes a combustion chamber (8) and a condenser (9); Wherein The air inlet of the combustion chamber (8) is communicated with the exhaust gas outlet of the heating furnace, the exhaust gas outlet of the combustion chamber (8) is communicated with the air inlet (3) of the heat exchange air box, and the combustion chamber (8) is suitable for burning and decomposing exhaust gas; and At least two horizontal partition plates are arranged in the combustion chamber (8), and the number of partition plates is an even number, so as to divide the combustion chamber (8) into at least three combustion cavities, and the exhaust gas flows in an S-shaped flow mode along the partition plates in the combustion chamber (8); The condenser (9) is communicated with the air outlet (4) of the heat exchange air box and is suitable for reducing the temperature of the hot exhaust gas.

9. A sintering furnace device, characterized in that, Comprising: The combustion tower according to claim 8; The sintering furnace device further includes a heating furnace, and the combustion tower is arranged on the exhaust gas path of the heating furnace.

10. A sintering furnace device, characterized in that, Comprising: A heating furnace; And The heat exchange air box according to any one of claims 1-7 arranged on the exhaust gas path of the heating furnace.

Images