A built-in tower circular plate shell heat exchanger

Abstract

The utility model relates to a kind of built-in tower circular plate shell heat exchanger, and its heat exchange plate bundle core body is sealed and fixed by cover plate, pressing plate after being stacked by multiple heat exchange units at both ends;Each heat exchange unit is sealed and fixed by two circular heat exchange plates along outer circumference, and circular heat stream inlet and heat stream outlet are opened on each circular plate, and heat stream inlet and heat stream outlet inner circumference of plate pair along plate are sealed and fixed, and the flow channel of plate distance is formed between the two plate pieces of plate pair;Shell side flow channel is formed between plate pair;Plate side medium is U-shaped in plate bundle, and the heat exchange plate bundle core body is installed in shell by pressing plate and shell bottom fixed connection, and cold stream inlet, cold stream outlet are opened on shell;Heat stream inlet and heat stream outlet of heat exchange plate bundle core body are connected by connecting pipe and flange cover respectively, and flange cover and tower flange on tower are sealed connection.The utility model uses reasonable heat exchanger structure design, equipment is simple, heat transfer efficiency is high, improves the compactness of heat exchanger.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger design and manufacturing technology, and relates to a tower-in-place circular plate-shell heat exchanger. Background Technology

[0002] Circular plate-and-shell heat exchangers have attracted much attention in industrial heat exchange due to their advantages of high-efficiency heat transfer (heat transfer coefficient is 30%-50% higher than that of shell-and-tube heat exchangers) and strong pressure resistance. However, their traditional structure is mostly external, which still has problems with pipeline energy consumption and space occupation.

[0003] The industrial sector urgently needs a high-efficiency, compact heat exchange device that can adapt to the environment inside towers. The development of a circular plate-and-shell heat exchanger built into a tower is precisely to overcome the shortcomings of existing technologies. It can utilize the advantages of efficient heat transfer and strong pressure resistance of plate-and-shell structures, and its circular structure can adapt to the tower body to achieve direct and efficient heat exchange inside the tower. It also has the characteristics of energy saving, space saving, and strong adaptability, and has become an important direction for solving the problem of synergy between tower equipment and heat exchange. Utility Model Content

[0004] This invention proposes a tower-integrated circular plate-shell heat exchanger, aiming to solve the technical problems of traditional shell-and-tube heat exchangers, such as large footprint, non-compact structure, and low heat transfer efficiency.

[0005] The technical solution adopted in this utility model is as follows: A circular plate-shell heat exchanger built into a tower includes a heat exchange plate bundle core, a shell, a flange cover, a cover plate, a pressure plate, and connecting pipes. The heat exchange plate bundle core is formed by stacking multiple heat exchange units and sealing them at both ends with the cover plate and the pressure plate. Each heat exchange unit consists of two circular heat exchange plates fixedly connected along their outer circumference. Each circular plate has a circular hot flow inlet and outlet. The plates are fixedly connected along the inner circumference of the hot flow inlet and outlet, forming a plate-side flow channel between the two plates. A shell-side flow channel is formed between the plates. The medium on the plate side flows in a U-shape within the plate bundle. The heat exchange plate bundle core is installed inside the shell by being fixedly connected to the bottom of the shell with the pressure plate. The shell has a cold flow inlet and a cold flow outlet. The hot flow inlet and outlet of the heat exchange plate bundle core are connected to the flange cover via connecting pipes, and the flange cover is sealed to the tower flange on the tower.

[0006] The shell has tear ducts.

[0007] The hot flow inlet and hot flow outlet have the same orientation on the flange cover.

[0008] The circular plate heat exchanger is built into the bottom or top of the tower.

[0009] This invention integrates a circular plate-shell heat exchanger within a tower for heat transfer. Compared to conventional heat exchangers, it eliminates the need for bottom support and avoids the space constraints of conventional plate heat exchangers, occupying only the space within the tower, making it convenient and efficient. Furthermore, this invention leverages the high efficiency and strong pressure resistance of plate-shell heat exchangers while also adapting its circular structure to the tower body, achieving direct and efficient heat exchange within the tower, thus saving energy and space. In this invention, the medium inside the tower flows through the shell side, while the medium outside the tower flows through the plates. The shell side is immersed in the medium inside the tower (similar to a fast-heating type), with heat exchange occurring at the bottom of the tower, ensuring the overall heat transfer of the tower. Attached Figure Description

[0010] Figure 1 This is a disassembled assembly drawing of this utility model; Figure 2 This is the assembly drawing of the circular plate shell heat exchanger of this utility model; Figure 3 This is a disassembly diagram of the circular plate shell heat exchanger of this utility model; Figure 4 This is an appearance drawing of one embodiment of the present invention; Numbered in the diagram: 1. Tower, 2. Heat exchanger plate bundle core, 3. Flange cover, 5. Shell, 6. Cover plate, 7. Pressure plate, 8. Connecting pipe, 9. Tear hole, 10. Tower flange; A. Hot flow inlet; B. Hot flow outlet; C. Cold flow inlet; D. Cold flow outlet. Detailed Implementation

[0011] The present invention will now be described in further detail with reference to the accompanying drawings and preferred embodiments.

[0012] Reference Figure 1-3 A tower-mounted circular plate-shell heat exchanger includes a heat exchange plate bundle core 2, a shell 5, a flange cover 3, a cover plate 6, a pressure plate 7, and a connecting pipe 8. The heat exchange plate bundle core 2 is formed by stacking multiple heat exchange units and sealing them at both ends with the cover plate 6 and the pressure plate 7. Each heat exchange unit is formed by welding two circular heat exchange plates along their outer circumference. Each circular plate has a circular heat flow inlet A and a heat flow outlet B. The heat flow between the plates is connected along the heat flow inlet. A and the hot flow outlet B are welded to the inner circumference, forming a plate flow channel between the two plates of the plate pair; a shell flow channel is formed between the plates; the medium on the plate side flows in a U-shape within the plate bundle; the heat exchange plate bundle core 2 is installed inside the shell 5 by being fixedly connected to the bottom of the shell 5 by the pressure plate 7; the shell has a cold flow inlet C and a cold flow outlet D; the hot flow inlet and hot flow outlet of the heat exchange plate bundle core 2 are connected by the pipe 8 and the flange cover 3 respectively, and the flange cover 3 is sealed to the tower flange 10 on the tower 1.

[0013] The height of tower flange 10 and the length of pipe 8 ensure that the cold flow inlet C and cold flow outlet D of the circular plate heat exchanger are connected to the medium inside the tower. The outer diameter of shell 5 is smaller than the inner diameter of tower flange 10, which facilitates placement.

[0014] The housing 5 has teardrop-shaped openings 9 for the inflow of cold medium, ensuring circulation inside the housing.

[0015] The hot flow inlet A and hot flow outlet B have the same pipe opening orientation on flange cover 3, which facilitates the layout of the hot flow inlet A and outlet B pipelines.

[0016] Reference Figure 4 The circular plate-shell heat exchanger is built into the bottom or top of tower 1. The size of the equipment can be adjusted according to the process requirements, which is convenient and quick.

[0017] The specific heat transfer process is as follows: The hot medium flows in through the hot flow inlet A, enters the heat exchange plate bundle core 2 through the pipe 8, exchanges heat within the heat exchange plate bundle core 2, and then flows out through the hot flow outlet B. The cold medium flows in through the cold flow inlet C, enters the heat exchange plate bundle core 2 through the shell 5, exchanges heat within the plate bundle, and then flows out through the cold flow outlet B. The pipe 8 and the heat exchange plate bundle core 2 form a hot medium heat exchange channel, while the shell 5, pressure plate 7, and cover plate 6 form a cold medium heat exchange channel with the heat exchange plate bundle core 2, and they do not interfere with each other.

[0018] The working process of this utility model: like Figure 2 As shown, after the hot medium enters the hot flow inlet A, it flows to the right through the pipe 8, and transfers heat with the cold medium through the heat exchange plate bundle 2. It reaches the bottom pressure plate 7, flows to the left from the pressure plate 7 to the heat exchange plate bundle 2, and flows out through the hot flow outlet B.

[0019] After the cold medium enters the shell 5, it enters the heat exchange plate bundle core 2 through the cold flow inlet C, and after heat exchange in the heat exchange plate bundle core 2, it flows out from the cold flow outlet D.

[0020] The above description is only a preferred embodiment of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and practical concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A tower-embedded circular plate-shell heat exchanger, characterized in that: The circular plate-shell heat exchanger includes a heat exchange plate bundle (2), a shell (5), a flange cover (3), a cover plate (6), a pressure plate (7), and a connecting pipe (8). The heat exchange plate bundle (2) is formed by stacking multiple heat exchange units and sealing them at both ends with the cover plate (6) and the pressure plate (7). Each heat exchange unit is formed by two circular heat exchange plates fixedly connected along the outer circumference. Each circular plate has a circular heat flow inlet (A) and a heat flow outlet (B). The heat flow inlet (A) and heat flow outlet (B) are connected between the plates. The inner circumference is fixedly connected, and a plate flow channel is formed between the two plates of the plate pair; a shell flow channel is formed between the plates; the medium on the plate side flows in a U-shape within the plate bundle; the heat exchange plate bundle core (2) is installed in the shell (5) by being fixedly connected to the bottom of the shell (5) through the pressure plate (7); the shell has a cold flow inlet (C) and a cold flow outlet (D); the hot flow inlet and hot flow outlet of the heat exchange plate bundle core (2) are connected through the pipe (8) and the flange cover (3) respectively, and the flange cover (3) and the tower flange (10) on the tower (1) are sealed together.

2. A tower-embedded circular plate-shell heat exchanger according to claim 1, characterized in that: The shell (5) has tear ducts (9).

3. A tower-embedded circular plate-shell heat exchanger according to claim 1, characterized in that: The hot flow inlet (A) and hot flow outlet (B) have the same orientation on the flange cover (3).

4. A tower-embedded circular plate-shell heat exchanger according to claim 1, characterized in that: The circular plate heat exchanger is built into the bottom or top of the tower (1).

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