High-temperature flue gas heat exchange device

Abstract

According to the high-temperature flue gas heat exchange device, an empty groove is formed between the inner wall of a first shell and the outer wall of a second shell, two first guide pipes communicating with the empty groove are symmetrically arranged on the first shell, a flow guide pipe is arranged in the empty groove in a coiled mode, and two baffles are fixed to the upper ends and the lower ends of the first shell and the second shell correspondingly; when the water in the empty groove is heated, low-temperature water flows into the empty groove through the first guide pipe, the low-temperature water exchanges heat with high-temperature flue gas in the flow guide pipe in the empty groove, the low-temperature flue gas after heat exchange is discharged to an appointed position through the other second guide pipe, and after the water in the empty groove is heated, the water is discharged to an appointed position through the other first guide pipe. High-temperature flue gas generated when internal combustion engine equipment runs cannot be directly exhausted, and heat energy waste can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, specifically a high-temperature flue gas heat exchange device. Background Technology

[0002] An internal combustion engine is a type of power machinery that converts the heat energy released from burning fuel inside the machine into power. During the operation of an internal combustion engine, fuel mixes with air and burns inside the cylinder, producing high-temperature, high-pressure combustion gases. These gases then push the piston to do work, outputting mechanical work. In this process, some of the heat energy generated by combustion is converted into mechanical energy, while the rest is directly discharged as high-temperature flue gas, resulting in a waste of heat energy. Utility Model Content

[0003] (1) Technical problems solved

[0004] To address the shortcomings of existing technologies, this utility model provides a high-temperature flue gas heat exchange device.

[0005] (II) Technical Solution

[0006] To achieve the above objectives, this utility model provides the following technical solution: a high-temperature flue gas heat exchange device, comprising a first shell, a second shell, and two baffles. The second shell is penetrated by the first shell, and a slot is formed between the inner wall of the first shell and the outer wall of the second shell. Two first conduits communicating with the slot are symmetrically arranged on the first shell. A flow guide tube is coiled inside the slot. The two baffles are respectively fixed to the upper and lower ends of the first shell and the second shell, and the baffles can block the slot. The baffles are provided with through holes, and the two ends of the flow guide tube are provided with second conduits that penetrate through the through holes.

[0007] To make the guide pipe more securely installed in the empty groove, the present invention is improved by providing positioning blocks at both ends of the guide pipe located inside the empty groove, and the baffle can contact the positioning blocks.

[0008] Furthermore, an improvement of this utility model is that both the first shell and the second shell are cylindrical structures.

[0009] To facilitate the assembly of the first housing, the second housing, and the baffle, the present invention is improved by fixing the baffle to the upper and lower ends of the first housing and the second housing with screws.

[0010] Furthermore, the present invention includes an improvement in that the baffle is provided with a first sealing ring that contacts the first housing and the second housing, and the inner wall of the through hole is provided with a second sealing ring that is penetrated by the second conduit.

[0011] Furthermore, an improvement of this utility model is that both the first sealing ring and the second sealing ring are made of rubber.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a high-temperature flue gas heat exchange device, which has the following beneficial effects:

[0014] In this high-temperature flue gas heat exchange device, low-temperature water flows into the empty tank through the first conduit. The low-temperature water exchanges heat with the high-temperature flue gas in the guide pipe in the empty tank. After the heat exchange, the low-temperature flue gas is discharged to a designated location through another second conduit. When the water in the empty tank heats up, it can be discharged to a designated location through another first conduit. This prevents the high-temperature flue gas generated by the internal combustion engine from being directly discharged during operation, thus avoiding the waste of heat energy.

[0015] Furthermore, the empty trough is annular in shape, and the guide pipe is coiled inside the empty trough, which can further improve the utilization rate of the residual heat of the flue gas inside the guide pipe. Attached Figure Description

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the assembly structure of the first shell and the second shell in this utility model;

[0018] Figure 3 This utility model Figure 1 The main view;

[0019] In the figure: 1. First shell; 2. Second shell; 3. First conduit; 4. Guide tube; 5. Positioning block; 6. Baffle; 7. Second conduit; 8. Through hole. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-3This utility model discloses a high-temperature flue gas heat exchange device, comprising a first shell 1, a second shell 2, and two baffles 6. The second shell 2 is penetrated by the first shell 1, and a slot is formed between the inner wall of the first shell 1 and the outer wall of the second shell 2. Two first conduits 3 communicating with the slot are symmetrically arranged on the first shell 1. A guide pipe 4 is coiled inside the slot. The two baffles 6 are respectively fixed to the upper and lower ends of the first shell 1 and the second shell 2, and the baffles 6 can block the slot. The baffles 6 are provided with through holes 8, and the two ends of the guide pipe 4 are provided with second conduits 7 penetrating through the through holes 8.

[0022] In this embodiment, the first housing 1 is fixed at a designated position on the internal combustion engine equipment, the water pipe is connected to the first conduit 3, and the second conduit 7 is connected to the exhaust pipe on the internal combustion engine. The high-temperature flue gas will be transported to the guide pipe 4 through the second conduit 7, thereby raising the temperature in the empty tank. At this time, the low-temperature water will flow into the empty tank through the first conduit 3. The low-temperature water will exchange heat with the high-temperature flue gas in the guide pipe 4 in the empty tank. After the heat exchange, the low-temperature flue gas will be discharged to a designated position through another second conduit 7. When the water in the empty tank is heated, it can be discharged to a designated position through another first conduit 3. This prevents the high-temperature flue gas generated by the internal combustion engine equipment during operation from being directly discharged, thus avoiding the waste of heat energy.

[0023] Furthermore, the empty trough is annular in shape, and the guide pipe 4 is coiled inside the empty trough, which can further improve the utilization rate of the residual heat of the flue gas inside the guide pipe 4.

[0024] In this embodiment, the two ends of the guide pipe 4 are provided with positioning blocks 5 located inside the empty groove, and the baffle 6 can contact the positioning blocks 5, which can make the guide pipe 4 more firmly installed in the empty groove. The positioning blocks 5 can provide a positioning function for the guide pipe 4 in the empty groove, making the guide pipe 4 more firmly installed in the empty groove.

[0025] In this embodiment, both the first housing 1 and the second housing 2 are cylindrical structures.

[0026] In this embodiment, the baffle 6 is fixed to the upper and lower ends of the first housing 1 and the second housing 2 by screws. The screw fixing method makes it easy to assemble the first housing 1, the second housing 2 and the baffle 6, and makes it easy to assemble the guide pipe 4 into the interior of the empty slot.

[0027] In this embodiment, the baffle 6 is provided with a first sealing ring that contacts the first housing 1 and the second housing 2, and the inner wall of the through hole 8 is provided with a second sealing ring that is penetrated by the second conduit 7. Both the first sealing ring and the second sealing ring are made of rubber. The sealing performance of the baffle 6 can be ensured by the first sealing ring, and the sealing performance of the through hole 8 can be ensured by the second sealing ring.

[0028] In the description herein, it should be noted that relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention.

Claims

1. A high-temperature flue gas heat exchange device, characterized in that: The device includes a first housing (1), a second housing (2), and two baffles (6). The second housing (2) is penetrated by the first housing (1). A slot is formed between the inner wall of the first housing (1) and the outer wall of the second housing (2). Two first conduits (3) communicating with the slot are symmetrically arranged on the first housing (1). A guide pipe (4) is coiled inside the slot. The two baffles (6) are fixed to the upper and lower ends of the first housing (1) and the second housing (2), respectively. The baffles (6) can block the slot. The baffles (6) are provided with through holes (8). The two ends of the guide pipe (4) are provided with second conduits (7) that penetrate through the through holes (8).

2. The high-temperature flue gas heat exchanger according to claim 1, characterized in that: The guide pipe (4) has positioning blocks (5) located inside the empty groove at both ends, and the baffle (6) can contact the positioning blocks (5).

3. The high-temperature flue gas heat exchanger according to claim 2, characterized in that: Both the first shell (1) and the second shell (2) are cylindrical structures.

4. The high-temperature flue gas heat exchanger according to claim 3, characterized in that: The baffle (6) is fixed to the upper and lower ends of the first housing (1) and the second housing (2) by screws.

5. A high-temperature flue gas heat exchange device according to claim 4, characterized in that: The baffle (6) is provided with a first sealing ring that contacts the first housing (1) and the second housing (2), and the inner wall of the through hole (8) is provided with a second sealing ring that is penetrated by the second conduit (7).

6. A high-temperature flue gas heat exchange device according to claim 5, characterized in that: Both the first sealing ring and the second sealing ring are made of rubber.

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