A high-efficiency energy-saving heat exchange device

Abstract

The utility model relates to a kind of high-efficiency energy-saving heat exchange device, including mounting frame, the heat exchange module is cooperatively installed on the mounting frame, two ends of the heat exchange module are cooperatively installed with header, the top of heat exchange module is arranged with several fans, and single fan is supported by mounting frame;One header is used for the heat exchange fluid to be flowed into heat exchange module, when the heat exchange fluid flows through heat exchange module, fan rotation generates negative pressure air field, so that the air below heat exchange module flows from bottom to top, and then the fluid in heat exchange module is heat exchanged, and the fluid after heat exchange is flowed out by another header. By setting mounting frame, heat exchange core group and fan, a large amount of air can flow through the heat exchange core group in mounting frame, without cooling water, efficient convection heat exchange effect can be achieved;Meanwhile, its structure is compact, can improve the space utilization of ship, and is suitable for ocean-going ship.

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, and in particular to a high-efficiency and energy-saving heat exchange device. Background Technology

[0002] In the field of industrial control, the normal operation of a fluid system often requires the use of a high-power heat exchanger. This is especially true for industrial diesel engines, where the cooling water system is an internal circulation structure. After entering the diesel engine, the cooling water carries away the heat generated by the engine. The high-temperature water flows through the diesel engine outlet to the air-cooled heat exchanger. The air-cooled heat exchanger dissipates heat by exchanging heat with the outside air through heat dissipation fins. The fan at the top of the air-cooled heat exchanger rotates, driving airflow to increase heat exchange and causing the cooling water in the heat exchanger to drop to a certain temperature. Then, it flows back into the diesel engine, and the cycle repeats.

[0003] In the existing technology, the air-cooled heat exchangers used in diesel engine cooling systems are mostly plate heat exchangers, which have low heat dissipation efficiency and require a large volume to achieve the rated heat dissipation, resulting in a significant increase in the overall space occupied by the equipment; at the same time, plate heat exchangers consume a lot of cooling water, resulting in water waste. Utility Model Content

[0004] In response to the shortcomings of the existing production technology, the applicant provides a high-efficiency and energy-saving heat exchange device. By setting up an installation frame, a heat exchange core assembly, and a fan, a large amount of air can flow through the heat exchange core assembly within the installation frame, achieving a high-efficiency convective heat exchange effect without the need for cooling water. At the same time, its compact structure can improve the space utilization of ships and is suitable for ocean-going vessels.

[0005] The technical solution adopted in this utility model is as follows:

[0006] A high-efficiency and energy-saving heat exchange device includes an installation frame, on which a heat exchange module is mounted. At both ends of the heat exchange module, a header is mounted. Several fans are arranged above the heat exchange module, and each fan is supported by the installation frame.

[0007] One header is used for the flow of the fluid to be heat exchanged into the heat exchange module. When the fluid flows through the heat exchange module, the fan rotates to generate a negative pressure air field, which causes the air below the heat exchange module to flow from bottom to top, thereby exchanging heat with the fluid in the heat exchange module. After heat exchange, the fluid flows out through another header.

[0008] As a further improvement to the above technical solution:

[0009] The heat exchange module includes an array of heat exchange cores stacked from top to bottom.

[0010] The structure of a single heat exchange core assembly is as follows: it includes several flat tubes arranged in parallel at intervals along the horizontal direction, and heat sink assemblies are installed on the outer circumference of the flat tubes. The heat sink assembly includes several heat sinks that are evenly spaced along the axial direction of the flat tubes.

[0011] The cross-sectional shape of a single flat tube is elliptical.

[0012] The heat sink is made of copper, aluminum, titanium or stainless steel.

[0013] The structure of a single header is as follows: it includes a front sealing plate and a back plate that are installed together, and a closed receiving cavity is formed between the back plate and the front sealing plate, the receiving cavity being used to store fluid;

[0014] The front sealing plate has several mounting holes on its end face for fluid passage;

[0015] Several through holes for fluid passage are provided on the end face of the back plate.

[0016] The front sealing plate is an arc-shaped plate.

[0017] A connector is fitted into a single mounting hole for connection to an external delivery pipe assembly.

[0018] The structure of the mounting frame is as follows: it includes a hollow first cover plate, several second cover plates are fixed to the top of the first cover plate, the second cover plates correspond one-to-one with the fans, the interior of a single second cover plate is installed with the corresponding fan through a support frame, and several support legs are installed at the bottom of the first cover plate.

[0019] A single fan includes an impeller, which is connected to the output of a motor, and the motor drives the impeller to rotate.

[0020] The beneficial effects of this utility model are as follows:

[0021] This utility model features a compact and reasonable structure, and is easy to operate. By employing air convection to achieve efficient heat exchange with the fluid inside the pipe, it effectively improves heat exchange efficiency. It can achieve efficient heat exchange through air convection via heat sinks without external cooling water, and can operate normally even in harsh environments. By setting up a flat tube with an elliptical cross-section, its thermal conductivity can be increased and the wind resistance of external air flowing through the flat tube can be reduced, thereby increasing the air velocity flowing through the heat sink, increasing heat exchange efficiency, and reducing the working pressure of the fan. Under the same heat exchange power, the volume of the heat exchanger can be effectively reduced.

[0022] This utility model is modularly assembled from an installation frame, heat exchange core assembly, and fan. The functional boundaries of each module are clear, and each module can be disassembled and inspected independently. When a single module fails due to a fault, the module can be quickly produced and installed, making the equipment easy to disassemble and inspect, with low maintenance costs and safe and reliable operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of this utility model.

[0024] Figure 2 This is a schematic diagram of the mounting frame in this utility model.

[0025] Figure 3 This is a schematic diagram of the heat exchange core assembly in this utility model.

[0026] Figure 4 This is a schematic diagram of the structure of the manifold in this utility model.

[0027] Figure 5 This is an exploded view of the container in this utility model.

[0028] Figure 6 This is a schematic diagram of the structure of the fan in this utility model.

[0029] The components include: 1. mounting frame; 2. heat exchange core assembly; 3. header; 4. motor; 5. impeller;

[0030] 101. First cover plate; 102. Second cover plate; 103. Support frame; 104. Support leg;

[0031] 201. Flat tube; 202. Heat sink;

[0032] 301. Front cover plate; 302. Back plate; 303. Through hole; 304. Mounting hole; 305. Connector. Detailed Implementation

[0033] The specific embodiments of this utility model are described below with reference to the accompanying drawings.

[0034] The structure and function of this utility model are as follows:

[0035] like Figures 1-6 As shown, a high-efficiency and energy-saving heat exchange device includes a mounting frame 1, on which a heat exchange module is mounted. A header 3 is mounted at both ends of the heat exchange module. Several fans are arranged above the heat exchange module, each fan supported by the mounting frame 1. One header 3 allows the fluid to flow into the heat exchange module. As the fluid flows through the heat exchange module, the fans rotate, generating a negative pressure air field, causing the air below the heat exchange module to flow upwards, thus exchanging heat with the fluid inside the module. The heat-exchanged fluid then flows out through the other header 3. By configuring the mounting frame 1, heat exchange module, and fans, a large amount of air can flow through the heat exchange module within the mounting frame 1, achieving efficient convective heat exchange without the need for cooling water. Furthermore, its compact structure improves the space utilization of ships and is suitable for ocean-going vessels.

[0036] The heat exchange module includes an array of heat exchange core groups 2 stacked from top to bottom. The structure of a single heat exchange core group 2 is as follows: it includes several flat tubes 201 arranged parallel to each other in a horizontal direction. Heat sink assemblies are simultaneously installed on the outer circumference of the flat tubes 201. Each heat sink assembly includes several heat sinks 202 evenly spaced along the axial direction of the flat tubes 201. The flat tubes 201 allow fluid to pass through; the heat sinks 202, which are in direct contact with the flat tubes 201, increase the heat exchange area of ​​the flat tubes 201. This allows a large amount of air to enter the gaps between the heat sinks 202 from bottom to top when the fan is operating, ensuring sufficient heat exchange for the fluid within the flat tubes 201.

[0037] The cross-sectional shape of the single flat tube 201 is elliptical, which can increase the thermal conductivity. Compared with the traditional round tube, it can reduce the wind resistance of external air flowing through the flat tube 201, thereby increasing the air velocity flowing through the heat sink 202, increasing the heat exchange efficiency, and reducing the working pressure of the fan. Thus, the volume of the heat exchanger can be effectively reduced under the same heat exchange power.

[0038] The single heat sink 202 is made of copper, aluminum, titanium or stainless steel. By using a material with high thermal conductivity, the heat of the fluid inside the flat tube 201 can be fully transferred to the heat sink 202 with good thermal conductivity.

[0039] The structure of a single header 3 is as follows: it includes a front sealing plate 301 and a back plate 302 that are installed together, forming a closed accommodating cavity between the back plate 302 and the front sealing plate 301 for storing fluid; the end face of the front sealing plate 301 has several mounting holes 304 for fluid passage; the end face of the back plate 302 has several through holes 303 for fluid passage. By setting the header 3, it is convenient for fluid to enter and exit the heat exchange core assembly 2; the through holes 303 correspond one-to-one with the flat tubes 201 inside the mounting frame 1. By connecting the through holes 303 with the corresponding flat tubes 201, the fluid in the accommodating cavity can flow into the heat exchange core assembly 2, or the fluid in the heat exchange core assembly 2 can flow into the accommodating cavity.

[0040] The front sealing plate 301 is an arc-shaped plate.

[0041] A connector 305 is fitted into a single mounting hole 304, and the connector 305 is used to connect to an external delivery pipe assembly.

[0042] The structure of the mounting frame 1 is as follows: it includes a hollow first cover plate 101, several second cover plates 102 fixed to the top of the first cover plate 101, each second cover plate 102 corresponding to a fan. The interior of each second cover plate 102 is installed in conjunction with the corresponding fan via a support frame 103. Several support legs 104 are installed at the bottom of the first cover plate 101. The second cover plates 102 are used to protect the fans; the support legs 104 are used to support the entire heat exchange device, facilitating air entry from below into the interior of the first cover plate 101 when the fans are operating.

[0043] Each fan includes an impeller 5, which is connected to the output of a motor 4. The motor 4 drives the impeller 5 to rotate. When the motor 4 is energized, it drives the impeller 5 to rotate at high speed, thereby creating a negative pressure field above the heat exchange core assembly 2.

[0044] The working process of this utility model is as follows:

[0045] Connect the connector 305 on one header 3 to the feed pipe assembly, and connect the connector 305 on the other header 3 to the discharge pipe assembly.

[0046] The fluid to be heat exchanged flows into the corresponding header 3 through the feed pipe assembly and into the corresponding flat tube 201 through the corresponding through hole 303. During the fluid flow, heat is transferred to the heat exchange fins 202. The densely arranged heat exchange fins 202 greatly increase the area for heat exchange with air convection.

[0047] At the same time, the fan is powered on and starts. The fan rotates at high speed to create a negative pressure air field. A large amount of air enters the mounting frame 1 through the lower opening. When it flows through the heat exchange core group 2, it exchanges heat with the heat sink 202. Then it flows out of the mounting frame 1 through the upper opening.

[0048] After the heat exchange is completed, the fluid flows into another header 3 through the corresponding through hole 303, and then flows out of the heat exchange device through the discharge pipe group and into the downstream equipment.

[0049] The above description is an explanation of the present utility model and not a limitation thereof. The scope of the present utility model is defined by the claims. Within the protection scope of the present utility model, any form of modification may be made.

Claims

1. A high-efficiency and energy-saving heat exchange device, characterized in that: It includes an installation frame (1), on which a heat exchange module is installed. At both ends of the heat exchange module, a header (3) is installed. Several fans are arranged above the heat exchange module, and each fan is supported by the installation frame (1). One header (3) is used for the flow of the fluid to be heat exchanged into the heat exchange module. When the fluid to be heat exchanged flows through the heat exchange module, the fan rotates to generate a negative pressure air field, so that the air below the heat exchange module flows from bottom to top, thereby exchanging heat with the fluid in the heat exchange module. After the heat exchange is completed, the fluid flows out through another header (3).

2. The high-efficiency and energy-saving heat exchange device as described in claim 1, characterized in that: The heat exchange module includes an array of heat exchange cores (2) stacked from top to bottom.

3. The high-efficiency and energy-saving heat exchange device as described in claim 2, characterized in that: The structure of a single heat exchange core assembly (2) is as follows: it includes several flat tubes (201) arranged in parallel along the horizontal direction, and heat sink assemblies are installed on the outer circumference of the flat tubes (201). The heat sink assembly includes several heat sinks (202) arranged at uniform intervals along the axial direction of the flat tubes (201).

4. The high-efficiency and energy-saving heat exchange device as described in claim 3, characterized in that: The cross-sectional shape of the single flat tube (201) is elliptical.

5. The high-efficiency and energy-saving heat exchange device as described in claim 3, characterized in that: The single heat sink (202) is made of copper, aluminum, titanium or stainless steel.

6. The high-efficiency and energy-saving heat exchange device as described in claim 1, characterized in that: The structure of a single header (3) is as follows: it includes a front sealing plate (301) and a back plate (302) that are installed together, and a closed accommodating cavity is formed between the back plate (302) and the front sealing plate (301), and the accommodating cavity is used to store fluid; The front cover plate (301) has several mounting holes (304) for fluid passage on its end face; the back plate (302) has several through holes (303) for fluid passage on its end face.

7. The high-efficiency and energy-saving heat exchange device as described in claim 6, characterized in that: The front sealing plate (301) is an arc-shaped plate.

8. The high-efficiency and energy-saving heat exchange device as described in claim 6, characterized in that: A connector (305) is fitted into a single mounting hole (304) for connection to an external delivery pipe assembly.

9. The high-efficiency and energy-saving heat exchange device as described in claim 1, characterized in that: The structure of the mounting frame (1) is as follows: it includes a hollow first cover plate (101), several second cover plates (102) are fixed on the top of the first cover plate (101), the second cover plates (102) correspond one-to-one with the fans, the interior of a single second cover plate (102) is installed with the corresponding fan through a support frame (103), and several support legs (104) are installed at the bottom of the first cover plate (101).

10. The high-efficiency and energy-saving heat exchange device as described in claim 1, characterized in that: A single fan includes an impeller (5) which is connected to the output end of a motor (4) and the motor (4) drives the impeller (5) to rotate.

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