Plate heat exchanger based on zigzag turbulent flow fins

Abstract

The utility model provides a plate heat exchanger based on sawtooth-shaped turbulent flow fins. The plate heat exchanger comprises a water pipe, a flange, a top plate, a bottom plate, heat exchange plates and the turbulent flow fins. The turbulent flow fins are sawtooth-shaped turbulent flow fins, the turbulent flow fins are arranged between every two adjacent heat exchange plates, and every two adjacent turbulent flow fins are arranged in a staggered mode. A top plate is arranged at the top of the plate heat exchanger, a bottom plate is arranged at the bottom of the plate heat exchanger, and a water pipe is arranged on the top plate; the water pipe comprises a water inlet pipe and a water outlet pipe; a water inlet pipe flange is arranged on the water inlet pipe, and a water outlet pipe flange is arranged on the water outlet pipe. Through the permutation and combination design of various zigzag fins, the heat exchange effect of fluid is more sufficient, and the turbulent flow effect is better; the structure is compact, and manufacturing and using are convenient.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of structural design, in particular, to a plate heat exchanger based on sawtooth spoiler fins. BACKGROUND

[0002] As a main component of new energy vehicle heat pump system, the plate heat exchanger can provide a suitable temperature range for the battery to work efficiently, and can also serve as a condenser to provide a comfortable temperature for the passenger cabin. The performance of the plate heat exchanger directly affects the COP value of the entire heat pump system.

[0003] The sawtooth spoiler fin plate heat exchanger is widely used in the following fields: industrial cooling system: in large industrial cooling systems (such as new energy vehicle heat pump systems), this kind of heat exchanger can efficiently dissipate heat to ensure the stable operation of equipment in high temperature environment. Chemical production: the chemical industry needs frequent heat exchange operations, and the high performance design of this kind of heat exchanger can meet the harsh requirements of high temperature and high pressure. Petroleum and natural gas: the heat exchange link in petroleum chemical industry usually requires corrosion-resistant and high-pressure heat exchange equipment, and the structural design of this kind of heat exchanger is suitable for use in harsh environments. Heating, ventilation and air conditioning (HVAC) system: in building heating, ventilation and air conditioning systems, plate heat exchangers are commonly used equipment, and this kind of heat exchanger can provide high energy utilization rate and reduce energy cost.

[0004] There are mainly three types of plate heat exchangers on the market: herringbone wave plate type, point wave plate type and spoiler fin type. Among them, the spoiler fin type plate exchanger has the advantages of small flow resistance and good heat exchange performance, and is widely adopted. This patent mainly aims at the spoiler fin type plate heat exchanger. The spoiler fin type plate exchanger mainly consists of heat exchange plates, spoiler fins, top plates, bottom plates, flanges, water pipes and the like. Among them, the spoiler fin as the core component affecting the performance, the selection of its structural design parameters is very important.

[0005] The common fin spoiler fin forms on the plate exchanger include: straight fin, sawtooth fin, porous fin and corrugated fin, etc. Among them, the sawtooth spoiler fin has good comprehensive performance, and therefore is widely used. Figure 1 As shown in the figure, the parameters affecting the performance of the sawtooth spoiler fin mainly include: tooth height h, tooth pitch s, staggered tooth pitch s0, tooth opening width b, tooth thickness t, tooth shape angle a, and the arrangement shape of the sawtooth. The existing sawtooth spoiler fins on the market generally have the problems of poor heat exchange effect and large internal flow resistance. SUMMARY

[0006] In view of the defects in the prior art, the purpose of the present application is to provide a plate heat exchanger based on sawtooth spoiler fins.

[0007] According to the zigzag spoiler fin-based plate heat exchanger provided in the application, the plate heat exchanger comprises a water pipe, a flange, a top plate, a bottom plate, a heat exchange plate and a spoiler fin.

[0008] The spoiler fin is a zigzag spoiler fin, and the spoiler fin is arranged between any two heat exchange plates.

[0009] The plate heat exchanger is provided with the top plate at the top and the bottom plate at the bottom, and the water pipe is arranged on the top plate.

[0010] The water pipe comprises an inlet pipe and an outlet pipe, and the inlet pipe is provided with an inlet pipe flange, and the outlet pipe is provided with an outlet pipe flange.

[0011] Preferably, at least one spoiler fin is arranged between any two heat exchange plates.

[0012] Preferably, the single-layer spoiler fin has a continuous concave-convex wave shape.

[0013] Preferably, the multi-layer spoiler fins are arranged in a staggered manner.

[0014] Preferably, the inlet pipe and the inlet pipe flange are arranged at two corners of the same diagonal line of the top plate.

[0015] Preferably, the outlet pipe and the outlet pipe flange are arranged at two corners of the same diagonal line of the top plate.

[0016] Preferably, at least three spoiler fins are arranged between any two heat exchange plates, and any two spoiler fins are arranged in a staggered manner.

[0017] Preferably, the fin thickness of the zigzag spoiler fin is greater than the fin pitch of the adjacent zigzag spoiler fin.

[0018] Compared with the prior art, the application has the following beneficial effects:

[0019] 1. The application is designed by arranging and combining various zigzag fins, so that the heat exchange effect of the fluid is more sufficient, and the spoiler effect is better.

[0020] 2. The application has a compact structure design, is easy to operate and simple to manufacture. BRIEF DESCRIPTION OF DRAWINGS

[0021] Other features, objects and advantages of the application will become more apparent from the following detailed description of non-limiting embodiments, with reference to the accompanying drawings:

[0022] Figure 1 The application mainly embodies the main parameters affecting the performance of the zigzag spoiler fin based on the zigzag spoiler fin.

[0023] Figure 2 The present application is mainly based on the shortcomings of the existing technology based on zigzag spoiler fins;

[0024] Figure 3 The present application is mainly based on the structure diagram of the plate heat exchanger based on zigzag spoiler fins;

[0025] Figure 4 The present application is mainly based on the structure diagram of the plate heat exchanger based on zigzag spoiler fins;

[0026] Figure 5 With Figure 6 The present application is mainly based on the structure diagram of the plate heat exchanger based on zigzag spoiler fins; DETAILED DESCRIPTION

[0027] The present application will be described in detail below with specific embodiments. The following examples will help those skilled in the art to further understand the present application, but do not limit the present application in any form. It should be noted that for those skilled in the art, without departing from the concept of the present application, a number of changes and improvements can be made. These are within the scope of the present application.

[0028] The plate heat exchanger based on zigzag spoiler fins provided by the present application comprises a water pipe, a flange, a top plate, a bottom plate, a heat exchange plate and a spoiler fin. The spoiler fin is a zigzag spoiler fin. A spoiler fin is provided between any heat exchange plate. Any adjacent spoiler fins are staggered. The top of the plate heat exchanger is provided with a top plate, and the bottom of the plate heat exchanger is provided with a bottom plate. The top plate is provided with a water pipe. The water pipe includes an inlet pipe and an outlet pipe. The inlet pipe is provided with an inlet pipe flange, and the outlet pipe is provided with an outlet pipe flange.

[0029] At least one spoiler fin is provided between any heat exchange plate. The shape of a single-layer spoiler fin is a continuous concave-convex wave shape. Multi-layer spoiler fins are staggered. The inlet pipe and the inlet pipe flange are respectively arranged at two corners of the same diagonal line of the top plate. The outlet pipe and the outlet pipe flange are respectively arranged at two corners of the same diagonal line of the top plate. At least three spoiler fins are provided between any heat exchange plate, and any two spoiler fins are staggered. The fin thickness of the zigzag spoiler fin is greater than the fin distance of the adjacent zigzag spoiler fin.

[0030] Specifically, the following is a feasible embodiment of the present application.

[0031] A plate heat exchanger based on zigzag spoiler fins, comprising: water pipes, flanges, heat exchange plates, and spoiler fins. At least three spoiler fins are arranged between adjacent heat exchange plates, and any two adjacent spoiler fins are staggered. A top plate is arranged at the top of the device, and the top plate is provided with an inlet and an outlet. The flange of the inlet pipe is arranged on the diagonal line of the top plate, and the water pipe is used for the input and output of the medium, and the water pipe includes an inlet pipe and an outlet pipe. The inlet pipe flange and the outlet pipe flange are respectively located at the interface of the inlet pipe and the outlet pipe, and are used for sealing connection with the pipeline system.

[0032] The top plate and the bottom plate of the heat exchanger provide structural support for the entire device, and the top plate is provided with water pipes to connect external systems. The heat exchange plate is the core heat exchange unit of the heat exchanger, and the medium flows therein and exchanges heat. The zigzag spoiler fins are arranged between adjacent heat exchange plates to enhance fluid disturbance and heat exchange effect.

[0033] The spoiler fins are continuous concave-convex wavy zigzag structures. This design helps to create turbulence during the heat exchange process, thereby breaking the boundary layer effect, increasing the contact area of the fluid with the heat exchange plate, and thus improving the speed of heat conduction.

[0034] A plurality of spoiler fins are arranged between adjacent heat exchange plates, and the fins are arranged in a staggered manner. The staggered arrangement increases the flow path and the flow area of the fluid, so that the medium can flow fully and form a larger turbulent flow area in the flow, significantly improving the heat exchange efficiency.

[0035] At least three spoiler fins are arranged between any two heat exchange plates, and any two adjacent fins are staggered, forming a multi-layer staggered arrangement. The thickness of the fin is greater than the fin pitch of its adjacent fin, and this design can further optimize the heat exchange effect, because different fin pitches and thicknesses help to generate vortexes of different scales, thereby intensifying fluid disturbance and increasing heat exchange area.

[0036] The inlet pipe and the outlet pipe are arranged at the two corners of the diagonal line of the top plate of the plate heat exchanger, forming a cross arrangement. Specifically, the inlet pipe and the inlet pipe flange are located at one corner of the top plate, and the outlet pipe and the outlet pipe flange are located at the opposite corner of the top plate. This cross arrangement allows the fluid to be evenly distributed between the heat exchange plates after entering the heat exchanger, avoiding the phenomenon of excessively high or low local flow rate, which is conducive to maintaining uniform heat exchange effect of the entire heat exchanger.

[0037] The heat exchange principle of the present plate heat exchanger is to exchange heat through the flow of medium between the heat exchange plates and the turbulence fins. Specifically, when hot fluid (such as hot water, hot oil, etc.) enters the heat exchanger, the fluid passes through the zigzag turbulence fin channels arranged between the heat exchange plates. In this process, the zigzag structure of the fins causes the fluid to produce turbulence, not only increasing the flow path of the fluid, but also increasing the contact area of the fluid with the heat exchange plates, promoting heat transfer. At the same time, the cold fluid flows through the adjacent channels, absorbing the heat transferred from the hot fluid. Through this multi-channel, multi-pass heat transfer method, heat exchange between fluids is completed.

[0038] The zigzag turbulence fin design causes strong disturbance of the fluid between the heat exchange plates, and the turbulence can effectively break the boundary layer of the fluid, improving the efficiency of heat transfer. Compared with traditional plate heat exchangers, the present product can significantly improve the heat exchange effect.

[0039] Because the turbulence path formed by the fluid between the fins is uniform and the fluid resistance is small, the present heat exchanger can maintain a low pressure loss while maintaining a high heat exchange efficiency, reducing the load on the system pump and saving energy.

[0040] Compared with traditional heat exchangers, the present heat exchanger has a more compact structural design and can achieve higher heat exchange capacity in a smaller volume. This makes the device more convenient to install and maintain, and suitable for applications in small spaces.

[0041] Because the turbulence effect of the fins can reduce the stagnant area of the fluid, and the turbulence helps to flush the surface deposits, the present heat exchanger has good anti-fouling performance in long-term use, prolonging the cleaning cycle and service life.

[0042] The present heat exchanger has strong anti-fouling performance due to the zigzag turbulence fin design. The zigzag turbulence fin plate heat exchanger performs well in heat exchange efficiency, fluid resistance, equipment compactness and durability through innovative structural design. It can be widely used in multiple industries to help users effectively improve heat exchange efficiency, reduce energy consumption, and reduce equipment maintenance costs, and is an indispensable high-efficiency heat exchange equipment in modern industry.

[0043] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0044] The specific embodiments of the present application are described above. It needs to be understood that the present application is not limited to the above specific embodiments, and various changes or modifications can be made by those skilled in the art within the scope of the claims, which does not affect the essence of the present application. The embodiments of the present application and the features in the embodiments can be combined with each other at will without conflict.

Claims

1. A plate heat exchanger based on sawtooth spoiler fins, characterized in that, It includes: Water pipe, flange, top plate, bottom plate, heat exchange plate and spoiler fin; The spoiler fin is a zigzag spoiler fin, and at least one spoiler fin is arranged between any heat exchange plate. The plate heat exchanger is provided with a top plate at the top and a bottom plate at the bottom, and the top plate is provided with a water pipe. The water pipe includes an inlet pipe and an outlet pipe, and the inlet pipe is provided with an inlet pipe flange, and the outlet pipe is provided with an outlet pipe flange.

2. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, At least one spoiler fin is arranged between any heat exchange plate.

3. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, The shape of the single-layer spoiler fin is a continuous concave-convex wave shape.

4. The zig-zag fin based plate heat exchanger as claimed in claim 1, wherein, The multi-layer spoiler fins are arranged in staggered positions.

5. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, The inlet pipe and the inlet pipe flange are arranged at two corners of the same diagonal line of the top plate.

6. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, The outlet pipe and the outlet pipe flange are arranged at two corners of the same diagonal line of the top plate.

7. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, At least three spoiler fins are arranged between any heat exchange plate, and any two spoiler fins are arranged in staggered positions.

8. The gilled plate heat exchanger based on zigzag spoiler fins as claimed in claim 1, wherein, The fin thickness of the zigzag spoiler fin is greater than the fin distance of the adjacent zigzag spoiler fin.

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