Efficient and energy-saving plate heat exchanger and application thereof

Abstract

The invention discloses an efficient and energy-saving plate heat exchanger and application thereof, and belongs to the technical field of heat exchangers, the efficient and energy-saving plate heat exchanger comprises a bottom plate and fixing plates, the fixing plates are installed on the bottom plate, cooling fins are installed between the two fixing plates, and first evaporator pipes and carrier rods are fixed to the upper sides and the lower sides between the fixing plates and the cooling fins respectively. By means of the cross-flow structure of the cooling fins and the evaporator pipes, fluid forms a turbulent flow state in the pipelines, the convection heat exchange effect is enhanced, and the heat exchange efficiency is improved. The heat exchange area is increased by the radiating fins, so that heat can be transferred from high-temperature fluid to low-temperature fluid more effectively. According to the heat exchanger, the radiating fins and the evaporator pipes are reasonably arranged, so that the heat exchanger achieves efficient heat exchange in a small size, and installation and application in a limited space are facilitated. The structure of the bottom plate and the fixing plate is adopted, so that the whole device has high structural stability and is convenient to transport and install.

Description

Technical Field

[0001] This invention relates to the field of heat exchanger technology, and more specifically, to a high-efficiency and energy-saving plate heat exchanger and its applications. Background Technology

[0002] In modern industrial and civil applications, heat exchange equipment is a crucial device for energy utilization and temperature control. Plate heat exchangers, widely used in chemical, refrigeration, and HVAC industries, have become the mainstream choice due to their high efficiency, energy saving, compact structure, and ease of maintenance. However, with increasing application demands and technological advancements, existing plate heat exchangers still exhibit some issues in heat exchange efficiency, structural stability, and fluid resistance, requiring further optimization and improvement.

[0003] Traditional plate heat exchangers primarily achieve heat transfer through fluid convection between adjacent plates. However, the parallel arrangement of the plates limits the complexity of the fluid flow path to some extent, leading to uneven fluid velocity distribution on the heat exchange surface and thus affecting heat exchange efficiency. Furthermore, traditional plate heat exchangers are prone to creating dead zones during fluid flow, resulting in poor heat exchange in some areas and increasing the difficulty of cleaning and maintenance.

[0004] To improve heat exchange efficiency, some improvements have been attempted in existing technologies, such as adding corrugations or grooves to the plate surface to enhance fluid turbulence. However, these improvements increase manufacturing costs and process complexity to some extent, hindering large-scale applications.

[0005] Furthermore, in existing plate heat exchanger designs, the structural stability and ease of installation are also issues that need attention. Traditional heat exchangers often require trade-offs between equipment size, structural strength, and installation methods during design and manufacturing, making it difficult to simultaneously meet multiple requirements.

[0006] Therefore, there is an urgent need for a novel plate heat exchanger with high heat exchange efficiency, stable structure, convenient installation, and optimized fluid flow path to solve the problems in existing technologies and meet the application requirements for higher efficiency and energy saving. Based on this, the present invention provides a high-efficiency and energy-saving plate heat exchanger that, through reasonable structural design and optimized hydrodynamic characteristics, achieves a significant improvement in heat exchange efficiency while simultaneously enhancing the structural stability and ease of installation. Summary of the Invention

[0007] 1. Technical problems to be solved

[0008] In view of the problems existing in the prior art, the purpose of this invention is to provide a high-efficiency and energy-saving plate heat exchanger and its application, which has high heat exchange capacity, stable structure, convenient installation, and can optimize fluid flow path.

[0009] 2. Technical Solution

[0010] To solve the above problems, the present invention adopts the following technical solution.

[0011] A high-efficiency and energy-saving plate heat exchanger and its application are disclosed, comprising a base plate and a fixed plate. The fixed plate is mounted on the base plate, and heat dissipation fins are installed between the two fixed plates. A first evaporator tube and a carrier rod are respectively fixed on the upper and lower sides of the fixed plate and the heat dissipation fins.

[0012] Based on the above features, a set of second evaporator tubes is installed at the middle position of the first evaporator tube and the carrier rod, and a pipe is connected to the right side of the second evaporator tubes.

[0013] In some embodiments, the base plate is provided with mounting holes at positions offset from the fixing plate, and the mounting holes are used to install nuts.

[0014] Based on the above characteristics, the second evaporator tubes are arranged alternately between the heat sinks to form a cross-flow structure.

[0015] In some embodiments, the heat sinks are spaced apart to ensure that there is enough space for the fluid to form turbulence as it flows over the heat sinks.

[0016] Based on the above features, the four corners of the heat sink substrate are set with an arc-shaped structure to reduce fluid dead zones.

[0017] 3. Beneficial effects

[0018] Compared with the prior art, the advantages of this invention are:

[0019] 1) The cross-flow structure of the heat sink and evaporator tubes creates turbulence in the fluid within the pipes, enhancing convective heat transfer and improving heat exchange efficiency. The heat sink increases the heat exchange area, allowing heat to be transferred more effectively from the high-temperature fluid to the low-temperature fluid.

[0020] 2) By rationally arranging the heat exchange fins and evaporator tubes, the heat exchanger achieves efficient heat exchange within a relatively small volume, which is beneficial for installation and application in limited spaces. The structure of the base plate and fixing plate gives the entire device high structural stability, facilitating transportation and installation.

[0021] 3) High heat exchange efficiency enables the equipment to complete the heat exchange process in a shorter time, reducing energy consumption and improving overall energy utilization. Optimized fluid dynamics design reduces fluid resistance and lowers pump power consumption, further saving energy.

[0022] 4) The four corners of the heat sink base plate are designed with rounded corners, which reduces dead corners in fluid flow, optimizes the fluid flow path, improves heat exchange efficiency, and reduces the difficulty of cleaning and maintenance.

[0023] 5) The mounting holes and nuts designed on the base plate make the installation process simpler and faster, providing flexible installation and fixing methods. The modular design of the heat sink and evaporator tubes makes the equipment easier to disassemble, clean, and maintain. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of a high-efficiency and energy-saving plate heat exchanger according to the present invention;

[0025] Figure 2 This is a front view of a high-efficiency and energy-saving plate heat exchanger according to the present invention.

[0026] Explanation of the labels in the diagram:

[0027] 1. Base plate; 2. Fixing plate; 3. Heat sink; 4. First evaporator tube; 5. Pipe; 6. Carrier rod; 7. Mounting hole. Detailed Implementation

[0028] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0029] Example 1:

[0030] Please see Figure 1-2 A high-efficiency and energy-saving plate heat exchanger and its application are disclosed, comprising a base plate 1 and a fixed plate 2. The fixed plate 2 is mounted on the base plate 1, and a heat sink 3 is installed between the two fixed plates 2. A first evaporator tube 4 and a carrier rod 6 are respectively fixed on the upper and lower sides of the fixed plate 2 and the heat sink 3. A set of second evaporator tubes 51 is installed in the middle position between the first evaporator tubes 4 and the carrier rod 6, and a pipe 5 is connected to the right side of the second evaporator tubes 51.

[0031] In some embodiments, the base plate 1 is provided with mounting holes 7 offset from the fixing plate 2, and the mounting holes 7 are used to install nuts. The second evaporator tubes 51 are arranged alternately between the heat sinks 3 to form a cross-flow structure.

[0032] In some embodiments, the heat sinks 3 are spaced apart to ensure that there is enough space for the fluid to form turbulence when flowing on the heat sinks 3. The four corners of the substrate of the heat sink 3 are arranged in an arc shape to reduce dead zones for the fluid.

[0033] The working principle of this highly efficient and energy-saving plate heat exchanger is mainly based on heat conduction and convection heat transfer, and its heat exchange efficiency is improved through optimized structural and fluid dynamic design. The detailed working principle is as follows:

[0034] 1. Basic structure:

[0035] ① Base plate 1 and fixing plate 2: Base plate 1 is used to support the entire heat exchanger structure, and fixing plate 2 is installed on base plate 1 and used to fix heat sink 3 and evaporator tube.

[0036] ② Heat sink 3: Heat sink 3 is installed between the fixed plates 2, which helps to increase the heat exchange area and improve the heat exchange efficiency.

[0037] ③ First evaporator tube 4 and carrier rod 6: The first evaporator tube 4 and carrier rod 6 are fixed between the fixing plate 2 and the heat sink 3. They are used for current carrying and support.

[0038] ④ Second evaporator tube 51: The second evaporator tube 51 is arranged alternately between the heat sink 3 to form a cross-flow structure. This structure helps to increase turbulence and improve heat exchange efficiency.

[0039] ⑤ Pipe 5: Used to connect the evaporator tubes to the external piping system to ensure effective fluid circulation.

[0040] 2. Heat exchange process:

[0041] ① Fluid flow: The fluid enters the second evaporator tube 51 from the pipe 5 and flows through the evaporator tubes arranged alternately between the heat sinks 3 via a cross-flow structure. This cross-flow structure helps the fluid to form turbulence and improves heat exchange efficiency.

[0042] ② Heat conduction: When the fluid flows in the evaporator tubes, it exchanges heat with the tube walls. Heat is transferred from the high-temperature fluid to the tube walls, and then through the heat sinks to the low-temperature fluid.

[0043] ③ Convection heat transfer: A certain distance is maintained between the heat sinks to ensure that there is enough space for the fluid to form turbulence when it flows between the heat sinks. This turbulent state further enhances the convective heat transfer effect.

[0044] ④ Reduce fluid dead zones: The four corners of the heat sink 3 are set with an arc-shaped structure, which reduces dead zones in fluid flow, optimizes the fluid flow path, and further improves heat exchange efficiency.

[0045] 3. Operation process:

[0046] ① Installation and fixing: The mounting holes 7 on the base plate 1 are used to install nuts to firmly fix the fixing plate 2 on the base plate 1, ensuring the structural stability of the heat exchanger.

[0047] ②Start the heat exchanger: High-temperature and low-temperature fluids are introduced into the heat exchanger through an external piping system, and each flows through the channel formed between the evaporator tubes and the heat sink.

[0048] ③ Heat exchange process: Heat exchange occurs in the contact area between the high-temperature fluid and the low-temperature fluid (between the evaporator tube and the heat sink). The high-temperature fluid releases heat to cool down, while the low-temperature fluid absorbs heat to heat up.

[0049] ④ Fluid discharge: The fluid after heat exchange is discharged from the heat exchanger through pipe 5, completing the entire heat exchange process.

[0050] With this design, plate heat exchangers can achieve efficient heat exchange in a small volume and are widely used in various industrial and civil applications that require heat exchange.

[0051] The above description is merely a preferred embodiment of the present invention; however, the scope of protection of the present invention is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in the present invention, based on the technical solution and its improved concepts, should be covered within the scope of protection of the present invention.

Claims

1. A high-efficiency and energy-saving plate heat exchanger and its application, comprising a base plate (1) and a fixed plate (2), characterized in that: The fixing plate (2) is installed on the base plate (1), and a heat sink (3) is installed between the two fixing plates (2). The first evaporator tube (4) and the carrier rod (6) are fixed on the upper and lower sides of the fixing plate (2) and the heat sink (3), respectively.

2. The high-efficiency and energy-saving plate heat exchanger and its application according to claim 1, characterized in that: A set of second evaporator tubes (51) is installed at the middle position of the first evaporator tube (4) and the carrier rod (6), and a pipe (5) is connected to the right side of the second evaporator tube (51).

3. The high-efficiency and energy-saving plate heat exchanger and its application according to claim 1, characterized in that: The base plate (1) is provided with mounting holes (7) at a position offset from the fixing plate (2), and the mounting holes (7) are used to install nuts.

4. The high-efficiency and energy-saving plate heat exchanger and its application according to claim 1, characterized in that: The second evaporator tube (51) is staggered between the heat sinks (3) to form a cross-flow structure.

5. The high-efficiency and energy-saving plate heat exchanger and its application according to claim 1, characterized in that: The heat sinks (3) are spaced apart to ensure that there is enough space for the fluid to form turbulence when it flows through the heat sinks (3).

6. The high-efficiency and energy-saving plate heat exchanger and its application according to claim 1, characterized in that: The base plate of the heat sink (3) is set with a rounded structure at the four corners to reduce dead zones for fluid flow.

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