Heat pipe waste heat recovery finned heat exchanger structure

Abstract

This utility model discloses a heat pipe waste heat recovery finned heat exchanger structure, including a lower shell, a sealing plate at the upper end of the lower shell, an upper shell on the sealing plate, a first mounting cavity in the upper shell, and a second mounting cavity in the lower shell. Heat exchange components are installed in both the first and second mounting cavities. This utility model achieves efficient heat exchange between high-temperature flue gas and low-temperature air by placing the evaporation and condensation sections of the heat pipe separately within the upper and lower shells, combined with a finned assembly and a baffle structure. The inclined installation of the heat pipe and the non-vertical angled baffle design significantly improve heat exchange efficiency and airflow uniformity. The flange and sealing plate structure ensure system sealing and prevent heat leakage. The overall structure is compact, easy to maintain, and suitable for industrial waste heat recovery scenarios.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange equipment technology, and in particular to a structure of a heat pipe waste heat recovery finned heat exchanger. Background Technology

[0002] Finned heat exchangers are one of the most widely used heat exchange devices in gas-liquid heat exchangers. They enhance heat transfer by adding fins to ordinary base tubes and are widely used in air conditioning, refrigeration, chemical and other fields.

[0003] Traditional heat pipe heat exchangers often employ straight-through airflow channels or single-fin structures, resulting in low heat exchange efficiency, insufficient waste heat recovery, and uneven airflow distribution. Especially in scenarios with significant temperature differences between high-temperature flue gas and low-temperature air, heat transfer efficiency is limited, and the complex structure leads to high maintenance costs. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies, such as "low heat exchange efficiency, insufficient waste heat recovery rate, and uneven airflow distribution in straight-through airflow channels or single-fin structures. Especially in scenarios with a large temperature difference between high-temperature flue gas and low-temperature air, heat transfer efficiency is limited, and the complex structure leads to high maintenance costs." Therefore, this invention proposes a heat pipe waste heat recovery finned heat exchanger structure.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A heat pipe waste heat recovery finned heat exchanger structure includes: a lower shell, a sealing plate provided at the upper end of the lower shell, an upper shell provided on the sealing plate, a first mounting cavity provided in the upper shell, a second mounting cavity provided in the lower shell, and heat exchange components provided in the first mounting cavity and the second mounting cavity.

[0007] As a preferred embodiment of the heat pipe waste heat recovery finned heat exchanger structure of this utility model, a fresh air inlet is provided on one side, a preheated air outlet is provided on one side of the upper end of the lower shell, a purified gas outlet is provided on one side of the upper shell, and a high-temperature flue gas inlet is provided at the upper end of the upper shell.

[0008] As a preferred embodiment of the heat pipe waste heat recovery finned heat exchanger structure of this utility model, the heat exchange component includes a heat pipe disposed in the lower shell, a flange for fixing is disposed on the heat pipe, a fin assembly is installed on the condensing section of the heat pipe, a first baffle is fixedly disposed in the first mounting cavity, and a second baffle is disposed at the lower end of the first baffle.

[0009] As a preferred embodiment of the heat pipe waste heat recovery finned heat exchanger structure of this utility model, the first folding plate and the second folding plate are staggered and their extension direction forms a non-perpendicular angle with the airflow direction of the high-temperature flue gas inlet.

[0010] As a preferred embodiment of the heat pipe waste heat recovery finned heat exchanger structure of this utility model, the heat pipe is connected to the upper shell and the lower shell at an inclined angle, with its evaporation section extending into the upper shell and its condensation section extending into the lower shell.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] By placing the evaporation and condensation sections of the heat pipes separately within the upper and lower shells, combined with finned assemblies and baffle structures, efficient heat exchange between high-temperature flue gas and low-temperature air is achieved. The inclined installation of the heat pipes and the non-vertical angled baffle design significantly improve heat exchange efficiency and airflow distribution uniformity. The flange and sealing plate structure ensures system sealing and prevents heat leakage. The overall structure is compact, easy to maintain, and suitable for industrial waste heat recovery scenarios. Attached Figure Description

[0013] Figure 1 This is a perspective view of a heat pipe waste heat recovery finned heat exchanger structure proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of a heat pipe waste heat recovery finned heat exchanger proposed in this utility model.

[0015] In the diagram: 101, lower shell; 102, fresh air inlet; 103, preheated air outlet; 104, sealing plate; 105, upper shell; 106, purified gas outlet; 107, high-temperature flue gas inlet; 201, first mounting cavity; 202, second mounting cavity; 203, heat exchange component; 2031, heat pipe; 2032, flange; 2033, fin assembly; 2034, first folding plate; 2035, second folding plate. Detailed Implementation

[0016] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.

[0017] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0018] Reference Figures 1-2 A heat pipe waste heat recovery finned heat exchanger structure includes a lower shell 101, a fresh air inlet 102 on one side of the lower shell 101, a preheated air outlet 103 on one side of the upper end of the lower shell 101, a sealing plate 104 on the upper end of the lower shell 101, an upper shell 105 on the sealing plate 104, a purified gas outlet 106 on one side of the upper shell 105, a high-temperature flue gas inlet 107 on the upper end of the upper shell 105, and a first mounting cavity 201 inside the upper shell 105. Considering the problems of low heat exchange efficiency, insufficient waste heat recovery rate and complex structure of traditional heat exchangers, it is necessary to achieve efficient heat exchange between high-temperature flue gas and low-temperature gas, simplify the structure and improve system stability. The structure also includes a second mounting cavity 202 inside the lower shell 101, and heat exchange components 203 are arranged in the first mounting cavity 201 and the second mounting cavity 202.

[0019] Based on this, other structures also need to be disclosed in detail, such as

[0020] Please see Figure 2 Considering that traditional straight-through airflow channels are prone to uneven local heat exchange, a non-vertical angle design is needed to make the airflow turn multiple times between the baffles to increase the turbulence effect and improve the heat exchange efficiency. It also includes a heat exchange component 203, including a heat pipe 2031 set in the lower shell 101. A flange 2032 for fixing is set on the heat pipe 2031. A fin assembly 2033 is installed on the condensing section of the heat pipe 2031. A first baffle 2034 is fixed in the first mounting cavity 201. A second baffle 2035 is set at the lower end of the first baffle 2034. The first baffle 2034 and the second baffle 2035 are staggered and their extension direction forms a non-vertical angle with the airflow direction of the high-temperature flue gas inlet 107. The heat pipe passes through and connects the upper shell 101 and the lower shell 105 at an inclined angle. Its evaporation section extends into the upper shell 101 and its condensation section extends into the lower shell 105.

[0021] In summary, the working principle of this solution is as follows:

[0022] Low-temperature air enters the lower shell 101 through the fresh air inlet 102, while high-temperature flue gas enters the upper shell 105 through the high-temperature flue gas inlet 107. After the heat pipe 2031 absorbs heat from the high-temperature flue gas in its evaporation section, the heat is transferred to the condensation section through the heat pipe 2031. The condensation section releases the heat to the low-temperature air through the fin assembly 2033, thus achieving waste heat recovery. The first baffle 2034 and the second baffle 2035 guide the airflow along a non-perpendicular path, extending the heat exchange time and enhancing turbulent mixing. Finally, the preheated air is discharged through the preheated air outlet 103, and the purified high-temperature flue gas is discharged through the purified gas outlet 106. The system achieves efficient and stable waste heat recovery.

[0023] It is worth noting that the entire device is controlled by a controller. Since the controller is a common device and belongs to existing mature technology, its electrical connection relationship and specific circuit structure will not be described in detail here.

[0024] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the technical scope disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the protection scope of this utility model. In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship 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, the terms "first," "second," or "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A heat pipe waste heat recovery finned heat exchanger structure, comprising: The lower housing (101) has a sealing plate (104) at its upper end and an upper housing (105) on the sealing plate (104). The upper housing (105) has a first mounting cavity (201) and the lower housing (101) has a second mounting cavity (202). Heat exchange components (203) are provided in the first mounting cavity (201) and the second mounting cavity (202).

2. The structure of a heat pipe (2031) waste heat recovery finned heat exchanger according to claim 1, characterized in that: A fresh air inlet (102) is provided on one side of the lower housing (101), a preheated air outlet (103) is provided on one side of the upper end of the lower housing (101), a purified gas outlet (106) is provided on one side of the upper housing (105), and a high-temperature flue gas inlet (107) is provided at the upper end of the upper housing (105).

3. The structure of a heat pipe (2031) waste heat recovery finned heat exchanger according to claim 1, characterized in that: The heat exchange component (203) includes a heat pipe (2031) disposed in the lower housing (101), a flange (2032) for fixing is disposed on the heat pipe (2031), a fin assembly (2033) is installed on the condensing section of the heat pipe (2031), a first baffle (2034) is fixedly disposed in the first mounting cavity (201), and a second baffle (2035) is disposed at the lower end of the first baffle (2034).

4. The structure of a heat pipe (2031) waste heat recovery finned heat exchanger according to claim 3, characterized in that: The first folding plate (2034) and the second folding plate (2035) are staggered, and their extension direction forms a non-perpendicular angle with the airflow direction of the high-temperature flue gas inlet (107).

5. The structure of a heat pipe (2031) waste heat recovery finned heat exchanger according to claim 4, characterized in that: The heat pipe (2031) is inclined to connect the upper shell (105) and the lower shell (101), with its evaporation section extending into the upper shell (105) and its condensation section extending into the lower shell (101).

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