A plate-fin heat exchanger suitable for two-phase flow

Abstract

The utility model relates to a kind of plate-fin heat exchanger suitable for two-phase flow, including equipment component, the rear side of equipment component is provided with disturbing component, disturbing component is matched with auxiliary assembly, it is solved that the means of prior art is limited in the aspect of strengthening gas-liquid two-phase flow disturbance, its internal disturbance is insufficient, heat and mass transfer between gas and liquid mainly rely on molecular diffusion, process is slow and the problem of low efficiency, the scheme is by setting disturbing component in the rear side of equipment component, the matching horizontal plate on vertical support plate will be inserted oblique rod accurately positioned between two groups of heat exchange pipe fittings, when airflow in two-phase flow flows through the area, the unique design of side fan blade on the outer end of inserted oblique rod, by its inclination angle and distribution mode, airflow is carried out multi-angle blocking and guiding, significantly increase the contact area and contact angle of airflow and fluid in opening groove, promote the heat transfer between gas-liquid two-phase flow more fully.

Description

Technical Field

[0001] This utility model relates to a plate-fin heat exchanger suitable for two-phase flow, and more specifically, to a plate-fin heat exchanger suitable for two-phase flow in the field of heat exchange equipment. Background Technology

[0002] Heat exchange processes are widespread and crucial in industrial production and numerous engineering fields. Plate-fin heat exchangers, due to their advantages such as compact structure, high heat exchange efficiency, and large heat exchange area per unit volume, are widely used in refrigeration, chemical, and energy industries. Traditional plate-fin heat exchangers mainly consist of fins, baffles, and seals. The fins increase the heat exchange area, enabling heat transfer between different fluids.

[0003] A Chinese patent (CN209197533U) discloses an aluminum plate-fin heat exchanger, comprising a radiator core and end caps, and a reinforcing plate. The reinforcing plate is a single-piece molded flat plate, comprising a rectangular main body located inside the heat exchanger core, and an extension plate located outside the heat exchanger core and connected to the front, rear, left, and right sides of the rectangular main body. The extension plate has flow equalization holes. This invention features high strength, is not prone to tearing, does not damage or disrupt the internal channels, ensures product appearance, does not generate welding waste, ensures the cleanliness of the product's internal cavity, and makes end cap welding more convenient and faster.

[0004] The above-mentioned device ensures the appearance of the product, does not produce welding waste, ensures the cleanliness of the product's internal cavity, and makes the welding of the end caps more convenient and faster. However, existing technologies have limited means to enhance the disturbance of gas-liquid two-phase flow. When gas-liquid two-phase flow flows in the channel of a conventional heat exchanger, its internal disturbance is insufficient, and the heat and mass transfer between gas and liquid mainly relies on molecular diffusion, which is a slow and inefficient process. Utility Model Content

[0005] The technical problem to be solved by this utility model is to provide a plate-fin heat exchanger suitable for two-phase flow, in view of the above-mentioned defects of the prior art.

[0006] The technical solution adopted by this utility model to solve its technical problem is:

[0007] A plate-fin heat exchanger suitable for two-phase flow is constructed, including an equipment assembly, a material shuffling assembly is provided on the rear side of the equipment assembly, and an auxiliary assembly is cooperated with the material shuffling assembly.

[0008] The equipment components include two symmetrical horizontal limiting rods. Side support frames are symmetrically fixed to the outer ends of the horizontal limiting rods on the left and right sides. Multiple finned plates are fixedly connected to the outer ends of the horizontal limiting rods at equal intervals. The multiple finned plates are located between the two side support frames. Multiple opening slots are opened on the outer sides of the multiple finned plates and the side support frames.

[0009] The material handling assembly includes a vertical support plate. Multiple matching horizontal plates are mounted on one end of the vertical support plate near the equipment assembly. Multiple through-beams are fixedly connected to the end of each matching horizontal plate near the equipment assembly. These through-beams are horizontally equidistant from each other. Side fan blades are symmetrically fixedly connected to the outer ends of each through-beam.

[0010] Preferably, multiple sets of interconnected heat exchange tubes are installed through openings in the side support plates and finned plates. The input end of the heat exchange tube is fixedly connected to a feed inlet, and the output end of the heat exchange tube is fixedly connected to a discharge outlet.

[0011] Preferably, multiple intersecting diagonal rods extend to the position between the corresponding two heat exchange tubes, and side plates are symmetrically fixedly connected to the upper and lower ends of the vertical support plate.

[0012] Preferably, a vibrator is fixedly connected to one end of each of the two side panels that are close to each other, and a linkage vibration vertical plate is provided at the output end of the two vibrators.

[0013] Preferably, multiple transverse connecting plates are fixedly connected to one end of the vertical plate of the linkage vibration system near the vertical support plate.

[0014] Preferably, multiple horizontal connecting plates pass through the corresponding vertical slots and are fixedly connected to the corresponding matching horizontal plates.

[0015] Preferably, spring buffers are symmetrically fixedly connected to the upper and lower inner walls of the vertical slot, and the spring buffers are connected to the upper and lower sides of the corresponding horizontal connecting plate.

[0016] The beneficial effects of this utility model are as follows:

[0017] (1) This solution plays a key role in enhancing heat exchange by setting the material shroud assembly on the rear side of the equipment assembly. The matching horizontal plate on the vertical support plate precisely positions the interpenetrating oblique rod between the two sets of heat exchange tubes. When the airflow in the two-phase flow passes through this area, the uniquely designed side fan blades at the outer end of the interpenetrating oblique rod, with their tilt angle and distribution, block and guide the airflow at multiple angles. This makes the airflow no longer flow in a single direction, but is dispersed into multiple airflows in different directions, which greatly widens the airflow trajectory. As a result, the contact area and contact angle between the airflow and the fluid in the opening slot are significantly increased, which promotes more sufficient heat transfer between the gas and liquid two-phase flow, effectively reduces energy waste, and lowers the equipment operating cost.

[0018] (2) The performance of the heat exchanger is greatly improved by the coordinated work of the auxiliary components and the material disturbance components. After the vibrator on the side panel is started, it drives the linkage vibration vertical plate to move up and down. The linkage vibration vertical plate drives the matching horizontal plate and the inserted diagonal rod to swing up and down between the opening slots through the horizontal connecting plate. The spring buffer in the vertical opening buffers the impact force generated when the horizontal connecting plate moves up and down, ensuring the stability of the equipment operation. On the other hand, it uses the elastic potential energy of the spring to provide additional assistance for the movement of the inserted diagonal rod, making its up and down swing more flexible and continuous, further enhancing the disturbance effect on the gas-liquid two-phase flow. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is an isometric view of the equipment components of this utility model;

[0021] Figure 2 This is the utility model Figure 1 Enlarged view of a partial truncated section of a component in the equipment;

[0022] Figure 3 This is a schematic diagram of the material scrambling component of this utility model;

[0023] Figure 4 This is a schematic diagram of the auxiliary components of this utility model;

[0024] Figure 5 This is the utility model Figure 4 Enlarged view of a partial section of the vertical support plate.

[0025] Numbering on the map:

[0026] 1. Equipment components; 100. Finned plates; 101. Heat exchanger fittings; 102. Feed inlet; 103. Discharge outlet; 104. Side support frame plate; 105. Opening slots; 106. Lateral limiting rods; 2. Material shuffling components; 201. Vertical support plate; 202. Matching horizontal plate; 203. Through diagonal rods; 204. Side fan blades; 3. Auxiliary components; 300. Side fitting plates; 301. Vibrator; 302. Linked vibration vertical plate; 303. Vertical slots; 304. Horizontal connecting plates; 305. Spring buffer components. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of this utility model. Obviously, the described embodiments are some, but not all, of the embodiments of this utility model. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Please see Figure 1-5 A plate-fin heat exchanger suitable for two-phase flow includes a device assembly 1, a material shuffling assembly 2 is provided on the rear side of the device assembly 1, and an auxiliary assembly 3 is provided in conjunction with the material shuffling assembly 2.

[0029] Equipment component 1 includes two symmetrical horizontal limiting rods 106. Side support plates 104 are symmetrically fixed to the left and right sides of the outer ends of the horizontal limiting rods 106. Multiple finned plates 100 are fixedly connected to the outer ends of the horizontal limiting rods 106 at equal intervals. The multiple finned plates 100 are all located between the two side support plates 104. Multiple opening slots 105 are opened on the outside of the multiple finned plates 100 and the side support plates 104.

[0030] The material handling assembly 2 includes a vertical support plate 201. A plurality of matching horizontal plates 202 are provided at one end of the vertical support plate 201 near the equipment assembly 1. A plurality of through-beams 203 are fixedly connected at one end of the matching horizontal plates 202 near the equipment assembly 1. The plurality of through-beams 203 are horizontally equidistantly distributed in front of each other. Side fan blades 204 are symmetrically fixedly connected on the left and right sides of the outer ends of the through-beams 203.

[0031] By setting the material scrambling assembly 2 on the rear side of the equipment assembly 1, and multiple matching horizontal plates 202 on the vertical support plate 201, multiple intersecting oblique rods 203 are positioned between the corresponding two sets of heat exchange tubes 101. When part of the airflow in the two-phase flow passes through this area, the side fan blades 204 at the outer end of the intersecting oblique rods 203, with their unique tilt angle and distribution, form multi-angle obstruction and guidance of the airflow. Under the action of the side fan blades 204, the airflow no longer flows in a single direction, but is dispersed into multiple airflows in different directions, which greatly widens the movement trajectory of the airflow, increases the contact area and contact angle between the airflow and the fluid in the opening slot 105, and makes the heat transfer between the gas and liquid two-phase flow more complete, which can achieve higher heat exchange efficiency, reduce energy waste, and reduce equipment operating costs.

[0032] Please see Figure 2-5Multiple sets of interconnected heat exchange tubes 101 are installed through openings 105 on the outside of multiple side support plates 104 and finned plates 100. The input end of the heat exchange tube 101 is fixedly connected to a feed inlet 102, and the output end of the heat exchange tube 101 is fixedly connected to a discharge outlet 103. Multiple through-beams 203 extend to the position between corresponding two heat exchange tubes 101. Side plates 300 are symmetrically fixedly connected to the upper and lower ends of the vertical support plate 201. Vibrators 301 are fixedly connected to the ends of the two side plates 300 that are close to each other. Linked vibration vertical plates 302 are provided at the output ends of the two vibrators 301. Multiple transverse connecting plates 304 are fixedly connected to the ends of the linked vibration vertical plates 302 that are close to the vertical support plate 201.

[0033] By setting the auxiliary component 3 to work in coordination with the material disturbance component 2, after the vibrator 301 on the side plate 300 is started, it drives the linkage vibration vertical plate 302 to move up and down. The linkage vibration vertical plate 302 is connected to the matching horizontal plate 202 through the horizontal connecting plate 304, which in turn drives the through-hole diagonal rod 203 to swing up and down between the opening slots 105, thereby improving the work efficiency.

[0034] Please see Figure 4-5 Multiple horizontal connecting plates 304 pass through the corresponding vertical slots 303 and are fixedly connected to the corresponding matching horizontal plates 202. Spring buffers 305 are symmetrically fixedly connected to the upper and lower inner walls of the vertical slots 303. The spring buffers 305 are connected to the upper and lower sides of the corresponding horizontal connecting plates 304.

[0035] By setting the spring buffer 305 in the auxiliary component 3, on the one hand, the impact force when the transverse connecting plate 304 moves up and down can be buffered to ensure the stability of the equipment operation. On the other hand, by utilizing the elastic potential energy of the spring, when the inclined rod 203 moves up and down with the transverse connecting plate 304, the elastic deformation of the spring buffer 305 provides additional elastic assistance to the movement of the inclined rod 203, making the up and down swaying of the inclined rod 203 more flexible and continuous, further enhancing the disturbance effect on the gas-liquid two-phase flow. This design ensures that the disturbance function of the disturbance component 2 can play a stable and efficient role under different working conditions, thereby improving the adaptability and reliability of the heat exchanger under complex working conditions.

[0036] The specific implementation process of this utility model is as follows: First, in this two-phase flow plate-fin heat exchanger, the equipment component 1 is the core heat exchange structure. The horizontally symmetrically arranged limiting rods 106 support and position multiple finned plates 100 through the side support frame plate 104 at their outer ends, ensuring the stability of the structure. The heat exchange tubes 101 penetrate the side support frame plate 104 and the opening slots 105 of the finned plates 100 and are interconnected, forming a fluid channel. When the fluid enters the heat exchange tubes 101 from the inlet 102 and flows out from the outlet 103, the finned plates 100 increase the heat exchange area and improve the heat exchange efficiency. This structural design makes the equipment component... Component 1 can efficiently exchange heat, laying the foundation for further improving the heat exchange effect of the subsequent baffle assembly 2 and auxiliary assembly 3. The baffle assembly 2 is set on the rear side of the equipment component 1. Multiple matching horizontal plates 202 on the vertical support plate 201 position multiple intersecting oblique rods 203 between the corresponding two sets of heat exchange tubes 101. When part of the airflow in the two-phase flow passes through this area, the side fan blades 204 at the outer end of the intersecting oblique rods 203, with their unique tilt angle and distribution, form multi-angle obstruction and guidance of the airflow. Under the action of the side fan blades 204, the airflow no longer flows in a single direction, but is dispersed into multiple airflows in different directions. This greatly widens the airflow trajectory, increases the contact area and contact angle between the airflow and the fluid in the opening slot 105, and makes the heat transfer between the gas and liquid two-phase flow more complete, achieving higher heat exchange efficiency, reducing energy waste, and lowering equipment operating costs. The auxiliary component 3 works in conjunction with the material disturbance component 2. After the vibrator 301 on the side plate 300 is started, it drives the linkage vibration vertical plate 302 to move up and down. The linkage vibration vertical plate 302 is connected to the matching horizontal plate 202 through the horizontal connecting plate 304, which in turn drives the through-insertion diagonal rod 203 to swing up and down between the opening slots 105. The spring buffer in the vertical opening 303 305 serves two purposes: firstly, it buffers the impact force when the transverse connecting plate 304 moves up and down, ensuring the stability of the equipment operation; secondly, by utilizing the elastic potential energy of the spring, the elastic deformation of the spring buffer 305 provides additional elastic assistance to the movement of the inclined rod 203 as it moves up and down with the transverse connecting plate 304, making the up-and-down swaying of the inclined rod 203 more flexible and continuous, further enhancing the disturbance effect on the gas-liquid two-phase flow. This design ensures that the disturbance function of the disturbance component 2 can play a stable and efficient role under different operating conditions, thereby improving the adaptability and reliability of the heat exchanger under complex operating conditions.

[0037] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A plate-fin heat exchanger suitable for two-phase flow, characterized in that, It includes a device component (1), a material swaying component (2) is provided on the rear side of the device component (1), and the material swaying component (2) is equipped with an auxiliary component (3); The equipment component (1) includes two horizontal limiting rods (106) that are symmetrically positioned vertically. Side support frame plates (104) are symmetrically fixedly connected to the outer ends of the horizontal limiting rods (106) on the left and right sides. Multiple finned plates (100) are fixedly connected to the outer ends of the horizontal limiting rods (106) at equal intervals. Multiple opening slots (105) are provided on the outer sides of the multiple finned plates (100) and the side support frame plates (104). The material handling assembly (2) includes a vertical support plate (201). The vertical support plate (201) has multiple matching horizontal plates (202) at one end near the equipment assembly (1). Multiple through diagonal rods (203) are fixedly connected to one end of the matching horizontal plates (202) near the equipment assembly (1). Side fan blades (204) are symmetrically fixedly connected to the outer ends of the through diagonal rods (203) on the left and right sides.

2. As described in claim 1, characterized in that, Multiple sets of heat exchange tubes (101) are installed on the outside of the multiple side support plates (104) and finned plates (100). The input end of the heat exchange tube (101) is fixedly connected to the feed port (102), and the output end of the heat exchange tube (101) is fixedly connected to the discharge port (103).

3. As described in claim 1, characterized in that, Multiple intersecting oblique rods (203) extend to the position between the corresponding two heat exchange tubes (101), and the upper and lower ends of the vertical support plate (201) are symmetrically fixedly connected with side plates (300).

4. As described in claim 3, characterized in that, Vibrators (301) are fixedly connected to one end of each of the two side panels (300) that are close to each other, and the output ends of the two vibrators (301) are provided with linkage vibration vertical plates (302).

5. As described in claim 4, characterized in that, The vertical plate (302) of the linkage vibration plate (302) is fixedly connected to a number of horizontal connecting plates (304) at one end near the vertical support plate (201).

6. As described in claim 5, characterized in that, Multiple horizontal connecting plates (304) pass through corresponding vertical slots (303) and are fixedly connected to corresponding matching horizontal plates (202).

7. As described in claim 6, characterized in that, Spring buffers (305) are symmetrically fixedly connected to the upper and lower inner walls of the vertical slot (303), and the spring buffers (305) are connected to the upper and lower sides of the corresponding horizontal connecting plate (304).

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