An energy-saving heat exchanger

Abstract

An energy-saving heat exchanger, belonging to the field of heat exchanger technology, is disclosed. It addresses the problems of low heat exchange efficiency, insufficient heat exchange, poor fluid flow, and the formation of dead zones in existing heat exchangers, which negatively impact heat exchange performance and overall equipment performance. A hot fluid inlet is located at the upper left side of the outer casing, and a hot fluid outlet is located at the lower right side. A cold fluid inlet is located at the upper left side of the outer casing, and a cold fluid outlet is located at the lower right side. Heat exchange tubes are housed within the outer casing, with their upper and lower ends connected to the cold fluid inlet and outlet, respectively. Two guide plates are respectively positioned on the top and bottom surfaces of the inner casing. Two flow dividers are symmetrically arranged within the outer casing, located on the left and right sides of the heat exchange tubes and cooperating with the hot fluid inlet and outlet. This invention optimizes the internal structure, improves the flow paths of hot and cold fluids, enhances the heat exchange effect between fluids, increases energy utilization, and achieves energy savings.

Description

Technical Field

[0001] This utility model belongs to the field of heat exchanger technology, and in particular relates to an energy-saving heat exchanger. Background Technology

[0002] A heat exchanger is an energy-saving device that transfers heat between two or more fluids at different temperatures, and it is one of the key devices for improving energy utilization. It plays an important role in chemical, petroleum, power, food, and many other industrial production processes. Traditional heat exchangers have certain shortcomings in structural design and fluid flow guidance, resulting in low heat exchange efficiency between hot and cold fluids, incomplete heat exchange, and energy waste. At the same time, the fluid flow state within the heat exchanger is poor, easily creating dead zones, which affects the heat exchange effect and the overall performance of the equipment. Therefore, developing an energy-saving heat exchanger that can improve heat exchange efficiency and optimize fluid flow state is of significant practical importance. Utility Model Content

[0003] The purpose of this invention is to provide an energy-saving heat exchanger to solve the problems of low heat exchange efficiency, insufficient heat exchange, poor fluid flow, and easy formation of dead flow zones in existing heat exchangers, which affect the heat exchange effect and the overall performance of the equipment.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: An energy-saving heat exchanger includes an outer shell and a heat exchange tube disposed inside the outer shell, two guide plates, and two flow dividers. The upper left end of the outer shell is provided with a hot fluid inlet, and the lower right end of the outer shell is provided with a hot fluid outlet. The upper left end of the outer shell is provided with a cold fluid inlet, and the lower right end of the outer shell is provided with a cold fluid outlet. The heat exchange tube is disposed inside the outer shell, and its upper and lower ends are respectively connected to the cold fluid inlet and the cold fluid outlet. The two guide plates are respectively disposed on the top and bottom surfaces inside the outer shell. The two flow dividers are symmetrically disposed on the left and right sides of the outer shell, and are respectively located on the left and right sides of the heat exchange tube and are configured to cooperate with the hot fluid inlet and the hot fluid outlet.

[0005] Furthermore, both of the two guide vanes are provided with wave-shaped baffles on the contact surfaces with the interior of the outer casing.

[0006] Furthermore, the heat exchange tube is arranged in a serpentine manner inside the outer shell, and multiple tube clamps are provided on the outer wall of the heat exchange tube. The multiple tube clamps are fixedly connected to the inner wall of the outer shell through the mounting bracket. Cold fluid is provided inside the heat exchange tube. The cold fluid flows into the heat exchange tube through the cold fluid inlet and flows out through the cold fluid outlet.

[0007] Furthermore, each of the two diversion plates includes two plates, which are vertically arranged and their ends are fixedly connected to form an included angle. The included angle of the two diversion plates faces the hot fluid inlet and the hot fluid outlet, respectively.

[0008] Furthermore, multiple sets of turbulence protrusions are evenly distributed along the circumference on the inner sidewall of the outer shell, and the turbulence protrusions are conical protrusions.

[0009] Compared with the prior art, the beneficial effects of this utility model are:

[0010] 1. This utility model can improve heat exchange efficiency. The heat exchange area is increased by the serpentine heat exchange tubes. The special structure of the wave-shaped baffles and the flow divider, as well as the turbulence protrusions on the inner side wall of the outer shell, work together to improve the flow state of the hot fluid, enhance the heat transfer between the hot fluid and the heat exchange tubes, and significantly improve the heat exchange efficiency.

[0011] 2. This utility model has significant energy-saving effect. Due to the improved heat exchange efficiency, the required flow rate of hot fluid is reduced to achieve the same heat exchange effect, thereby reducing energy consumption and achieving the goal of energy saving.

[0012] 3. This utility model has a stable and reliable structure. The outer shell is made of high-strength metal material, and the heat exchange tube is stably fixed in the outer shell by pipe clamps and mounting brackets. The overall structure is stable and reliable, and can withstand large working pressure and thermal stress, ensuring the safety and stability of the equipment during long-term operation.

[0013] 4. This utility model has a wide range of applications, a simple structure, and is easy to manufacture and maintain. It can be widely used in heat exchange scenarios in multiple industrial fields such as chemical, petroleum, power, and food, as well as in civilian fields. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of this utility model. Figure 1 ;

[0016] Figure 3 This is a schematic diagram of the internal structure of this utility model. Figure 2 ;

[0017] Figure 4 This is a schematic diagram of the internal structure of this utility model. Figure 3 ;

[0018] Figure 5 This is a schematic diagram of the internal structure of this utility model. Figure 4 ;

[0019] Figure 6 This is a schematic diagram of the internal structure of this utility model. Figure 5 .

[0020] The component names and reference numerals in the above figures are as follows:

[0021] 1. Outer casing; 2. Hot fluid inlet; 3. Hot fluid outlet; 4. Cold fluid inlet;

[0022] 5. Cold fluid outlet; 6. Baffle plate; 7. Heat exchange tube; 8. Pipe clamp; 9. Flow divider; 10. Turbulence protrusion; 11. Mounting bracket. Detailed Implementation

[0023] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the protection scope of this utility model.

[0024] Detailed implementation methods: such as Figures 1-6 As shown, this embodiment discloses an energy-saving heat exchanger, including an outer shell 1 and heat exchange tubes 7, two guide plates 6, and two flow dividers 9 disposed inside the outer shell 1. The outer shell 1 is made of a high-strength, corrosion-resistant metal material, such as stainless steel, to ensure that it can withstand the pressure and corrosion of the internal fluid during long-term use. The outer shell is cylindrical in shape. A hot fluid inlet 2 is provided at the upper left end of the outer shell 1, and a hot fluid outlet 3 is provided at the lower right end of the outer shell 1. A cold fluid inlet 4 is provided at the upper left end of the outer shell 1, and a cold fluid outlet 5 is provided at the lower right end of the outer shell 1. This inlet and outlet layout design facilitates the counter-current flow of hot and cold fluids within the heat exchanger, improving heat exchange efficiency. The heat exchange tubes 7 are disposed inside the outer shell 1, with their upper and lower ends connected to the cold fluid inlet 4 and the cold fluid outlet 5, respectively. The two guide plates 6 are respectively disposed on the top and bottom surfaces inside the outer shell 1. The two flow dividers 9 are symmetrically disposed on the left and right sides of the outer shell 1, respectively, and are located on the left and right sides of the heat exchange tubes 7 and are configured to cooperate with the hot fluid inlet 2 and the hot fluid outlet 3.

[0025] Furthermore, the two guide plates 6 are made of the same metal material as the outer shell 1. Both guide plates 6 and the inner contact surface of the outer shell 1 are provided with corrugated baffles. The corrugated baffles can change the flow direction of the hot fluid, increase the flow path and turbulence of the hot fluid in the heat exchanger, and make the contact between the hot fluid and the heat exchange tube more sufficient, thereby improving the heat exchange efficiency.

[0026] Furthermore, the heat exchange tube 7 is arranged in a serpentine pattern within the outer casing 1. The heat exchange tube 7 is made of a metal material with good thermal conductivity, such as copper. The serpentine arrangement increases the length of the heat exchange tube 7, thereby increasing the heat exchange area and facilitating sufficient heat exchange between the cold and hot fluids. Multiple tube clamps 8 are provided on the outer wall of the heat exchange tube 7. The tube clamps 8 are made of the same or similar metal material as the heat exchange tube 7, possessing good strength and corrosion resistance. All tube clamps 8 are fixedly connected to the inner wall of the outer casing 1 via mounting brackets 11. The mounting brackets 11 are made of metal and are fixed to the inner wall of the outer casing 1 by welding or bolting, ensuring stable installation of the heat exchange tube 7 within the outer casing 1. A cold fluid (i.e., the heat exchange medium) is contained within the heat exchange tube 7. The cold fluid flows into the heat exchange tube 7 through the cold fluid inlet 4 and flows out through the cold fluid outlet 5, achieving circulating heat exchange of the cold fluid.

[0027] Furthermore, each of the two flow dividers 9 includes two plates, which are vertically arranged and their ends are fixedly connected to form an angle. The angle between the two flow dividers 9 faces the hot fluid inlet 2 and the hot fluid outlet 3, respectively. The flow dividers 9 are made of metal and their function is to evenly distribute the hot fluid entering from the hot fluid inlet 2 to various areas of the heat exchanger, avoiding the hot fluid from concentrating in local areas. At the same time, they guide the hot fluid to flow towards the hot fluid outlet 3 at a relatively uniform flow rate, thereby improving the uniformity of the distribution of the hot fluid in the heat exchanger and thus improving the heat exchange effect.

[0028] Furthermore, multiple sets of turbulence protrusions 10 are evenly distributed circumferentially on the inner wall of the outer casing 1. The turbulence protrusions 10 are conical protrusions and are made of the same metal material as the outer casing 1. The turbulence protrusions 10 can further disrupt the flow state of the hot fluid, increase the turbulence intensity of the hot fluid, make the heat transfer between the hot fluid and the heat exchange tube 7 more complete, and improve the heat exchange efficiency.

[0029] I. Assembly process:

[0030] First, the outer shell 1 is manufactured. The outer shell 1 is made of stainless steel plate of appropriate specifications and is made into a cylindrical outer shell 1 through cutting, welding and other processes. Hot fluid inlet 2, hot fluid outlet 3, cold fluid inlet 4 and cold fluid outlet 5 are respectively opened at the upper left end, lower right end, upper left end and lower right end of the outer shell 1.

[0031] Install the heat exchange tube 7. The heat exchange tube 7 is made of copper tube of appropriate specifications. The copper tube is bent in a serpentine shape to ensure that the bending radius meets the design requirements and to avoid excessive deformation of the copper tube, which would affect its performance. Then, the processed serpentine heat exchange tube 7 is placed into the outer shell 1 and fixed with tube clamps 8. The tube clamps 8 are welded or bolted to the inner wall of the outer shell 1 through the mounting bracket 11 to ensure the stability of the heat exchange tube 7 in the outer shell 1.

[0032] Install the guide plate 6, and weld the guide plate 6 with the corrugated baffle to the inner top surface and inner bottom surface of the outer shell 1 respectively, to ensure that the connection between the guide plate 6 and the outer shell 1 is firm, and that the direction and position of the corrugated baffle meet the design requirements, so as to effectively guide the flow of hot fluid.

[0033] Install the flow divider 9. Install the two flow dividers 9 symmetrically on the left and right sides of the heat exchange tube 7 inside the outer casing 1, so that the included angle of the flow dividers 9 faces the hot fluid inlet 2 and the hot fluid outlet 3 respectively, and fix the flow dividers 9 inside the outer casing 1 by welding or other suitable methods to ensure that their position is accurate and stable.

[0034] Process the turbulence protrusions 10. On the inner sidewall of the outer shell 1, use stamping or other processing methods to uniformly process multiple sets of conical turbulence protrusions 10 in the circumferential direction to ensure that the size and distribution of the turbulence protrusions 10 meet the design requirements and can play a good turbulence role.

[0035] II. Working Principle:

[0036] This energy-saving heat exchanger is based on the principle of heat transfer to achieve heat exchange between hot and cold fluids. The hot fluid enters the heat exchanger through the hot fluid inlet 2 at the upper left side of the outer shell 1. Under the action of the flow divider 9, the hot fluid is evenly distributed to various areas of the heat exchanger, avoiding localized concentrated flow. Subsequently, under the combined action of the corrugated baffles of the guide plate 6 and the turbulence protrusions 10 on the inner wall of the outer shell 1, the flow state of the hot fluid changes, forming turbulent flow, which increases the contact area and contact time between the hot fluid and the heat exchange tubes 7.

[0037] Meanwhile, the cold fluid enters the heat exchange tube 7 from the cold fluid inlet 4 on the upper left side of the outer shell 1 and flows along the serpentine heat exchange tube 7. Since the heat exchange tube 7 is made of copper tubing with excellent thermal conductivity, when the hot fluid comes into contact with the outer wall of the heat exchange tube 7, heat is transferred through the wall of the heat exchange tube 7 to the cold fluid inside the tube, achieving heat exchange between the hot and cold fluids. After sufficient heat exchange, the hot fluid flows out from the hot fluid outlet 3 at the lower right side of the outer shell 1, while the cold fluid flows out from the cold fluid outlet 5 at the lower right side of the outer shell 1, completing the entire heat exchange process.

[0038] III. Work Process:

[0039] Start-up phase: When starting to use the heat exchanger, first open the supply valves for the hot fluid and cold fluid, allowing the hot fluid and cold fluid to enter the heat exchanger through the hot fluid inlet 2 and the cold fluid inlet 4, respectively. The hot fluid enters the heat exchanger evenly under the guidance of the distributor plate 9, while the cold fluid fills the heat exchange tubes 7.

[0040] Heat exchange stage: As the hot fluid flows within the heat exchanger, it is turbulent due to the corrugated baffles of the guide plate 6 and the turbulence protrusions 10, ensuring full contact with the heat exchange tubes 7 and transferring heat to the cold fluid within the tubes. The cold fluid continuously absorbs heat as it flows within the tubes, gradually increasing its temperature. With the continuous flow of both hot and cold fluids, the heat exchange process continues until both fluids reach the desired outlet temperature.

[0041] Stable operation phase: Once the heat exchanger reaches a stable operating state, parameters such as the flow rate and temperature of the hot and cold fluids remain relatively stable. At this time, the heat exchanger continuously and efficiently exchanges heat to meet the heat exchange requirements of the production process.

[0042] Shutdown Phase: When heat exchange is no longer required, sequentially close the supply valves for the hot and cold fluids to stop their supply. Once the hot and cold fluids have been drained from the heat exchanger, the shutdown process is complete.

[0043] This utility model's energy-saving heat exchanger optimizes its internal structure, improves the flow path of hot and cold fluids, enhances the heat exchange effect between fluids, improves energy utilization, and achieves energy-saving goals.

[0044] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of the equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0045] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An energy efficient heat exchanger characterized by: The device includes an outer shell (1) and a heat exchange tube (7), two guide plates (6) and two diverter plates (9) disposed inside the outer shell (1). The upper left side of the outer shell (1) is provided with a hot fluid inlet (2), the lower right side of the outer shell (1) is provided with a hot fluid outlet (3), the upper left side of the outer shell (1) is provided with a cold fluid inlet (4), and the lower right side of the outer shell (1) is provided with a cold fluid outlet (5). The heat exchange tube (7) is disposed inside the outer shell (1), and the upper and lower ends of the heat exchange tube (7) are respectively connected to the cold fluid inlet (4) and the cold fluid outlet (5). The two guide plates (6) are respectively disposed on the top and bottom surfaces inside the outer shell (1). The two diverter plates (9) are respectively symmetrically disposed on the left and right sides inside the outer shell (1). The two diverter plates (9) are respectively located on the left and right sides of the heat exchange tube (7) and are configured to cooperate with the hot fluid inlet (2) and the hot fluid outlet (3).

2. An energy saving heat exchanger according to claim 1, wherein: Both of the two guide plates (6) are provided with wave-shaped baffles on the contact surfaces with the inner surface of the outer shell (1).

3. An energy saving heat exchanger according to claim 2, wherein: The heat exchange tube (7) is arranged in a serpentine manner inside the outer shell (1). Multiple tube clamps (8) are provided on the outer side wall of the heat exchange tube (7). The multiple tube clamps (8) are fixedly connected to the inner side wall of the outer shell (1) through the mounting bracket (11). Cold fluid is provided inside the heat exchange tube (7). The cold fluid flows into the heat exchange tube (7) through the cold fluid inlet (4) and flows out through the cold fluid outlet (5).

4. An energy saving heat exchanger according to claim 3, wherein: The two diversion plates (9) each include two plates, which are vertically arranged and their ends are fixedly connected to form an angle. The angle between the two diversion plates (9) is directed toward the hot fluid inlet (2) and the hot fluid outlet (3), respectively.

5. An energy efficient heat exchanger as claimed in claim 4, wherein: Multiple sets of turbulence protrusions (10) are evenly distributed along the circumference on the inner sidewall of the outer shell (1), and the turbulence protrusions (10) are conical protrusions.

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