Heat exchange device for ship SCR (Selective Catalytic Reduction) system

Abstract

The utility model relates to the technical field of heat exchange devices, in particular to a heat exchange device for a ship SCR (Selective Catalytic Reduction) system, which comprises a shell, flange plates are fixedly mounted at two ends of the shell, a sliding groove is formed in the shell, a partition plate is slidably connected in the sliding groove, a heat exchange tube is slidably connected in the partition plate, and the heat exchange tube is fixedly connected with the shell. Sealing plates are fixedly installed at the two ends of the heat exchange pipe, racks are fixedly installed on the side faces of the sealing plates, gears are connected to the side faces of the racks in an engaged mode, and the output end of a motor is fixedly installed at one end of each gear. According to the tail gas heat exchange device, the sealing plate is driven by the motor to rotate, the partition plate and the heat exchange pipe are driven to rotate, flowing of tail gas in the device is increased, the tail gas is made to generate vortexes, efficient and sufficient heat exchange of the tail gas is achieved, and the conditions of energy loss and too low efficiency caused by insufficient heat exchange are reduced.

Description

Technical Field

[0001] This utility model relates to the field of heat exchange device technology, and in particular to a heat exchange device for a ship SCR system. Background Technology

[0002] A heat exchanger is a device used to transfer heat between two or more fluids (or fluid and solid). Its core purpose is to achieve efficient heat transfer while maintaining the physical separation of the fluids. This utility model discloses a heat exchanger device, including: a heat exchange shell and heat exchange tubes; a partition is provided inside the heat exchange shell, dividing the inner cavity of the heat exchange shell into a first heat exchange chamber and a second heat exchange chamber; the first heat exchange chamber is used to cool the coolant of a battery and / or engine; the second heat exchange chamber is used to cool the air conditioning refrigerant; the heat exchange shell has a cooling medium inlet and a cooling medium outlet; the heat exchange tubes are inserted into the first and second heat exchange chambers, with the inlet end of the heat exchange tube connected to the cooling medium inlet and the outlet end of the heat exchange tube connected to the cooling medium outlet. This application provides a heat exchanger that can simultaneously cool multiple components, solving the technical problems mentioned in the prior art. In practical applications, it has some shortcomings. When using the device, due to the excessive number of dead corners and the fixed position of the partition plate, the fluid flow velocity is uneven. The laminar flow phenomenon caused by the difference in flow velocity makes the heat exchange process uneven. The fluid with a slow flow velocity exchanges heat fully but accumulates in the device, while the fluid with a fast flow velocity does not exchange heat fully and is discharged from the device, resulting in heat loss. Improvement is needed. Utility Model Content

[0003] The purpose of this utility model is to solve the technical problems mentioned in the background art.

[0004] The present invention adopts the following technical solution: a heat exchange device for a marine SCR system, comprising a shell, flanges fixedly installed at both ends of the shell, a sliding groove provided inside the shell, a partition plate slidably connected inside the sliding groove, a heat exchange tube slidably connected inside the partition plate, sealing plates fixedly installed at both ends of the heat exchange tube, a rack fixedly installed on the side of the sealing plate, a gear meshing with the surface of the rack, an output end of a motor fixedly installed at one end of the gear, and a sealing ring fixedly installed between the motor output end and the shell.

[0005] Preferably, there are seven sets of chutes and partition plates, which are equidistantly distributed. Here, the chutes and partition plates rotate under the drive of a motor, and the partition plates make the heat exchange tubes more stable.

[0006] Preferably, the surface of the partition plate has a connecting opening, and the connecting openings of two adjacent sets of partition plates are oriented in opposite directions. Here, the connecting openings in opposite directions increase the vortex flow during exhaust gas flow, thereby improving heat exchange efficiency.

[0007] Preferably, an inlet cover and an outlet cover are fixedly installed at both ends of the outer casing, and the surface of the outer casing is connected to the inlet and outlet. Here, the partitioned design prevents direct contact from causing contamination of the raw materials.

[0008] Preferably, the heat exchange tube is spiral-shaped. Here, the spiral shape increases the contact area with the exhaust gas, improving heat exchange efficiency. At the same time, the spiral shape increases the area and flow rate while reducing the length of the heat exchange tube, thus reducing the size of the device and making it easier to install on a ship.

[0009] Preferably, a baffle is fixedly installed on the surface of the connecting port, the baffle forming a 30-degree angle with the partition plate, and a baffle block is fixedly installed on the inner surface of the outer shell. Here, the baffle and baffle block increase the vortex of the exhaust gas, allowing the exhaust gas to remain in the device for a longer time, making the heat exchange process more complete and reducing energy waste.

[0010] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0011] 1. In this utility model, the sealing plate is driven to rotate by a motor, which in turn drives the partition plate and heat exchange tube to rotate, increasing the flow of exhaust gas in the device and causing it to generate vortex, thereby achieving efficient and sufficient heat exchange of the exhaust gas and reducing energy loss and low efficiency caused by insufficient heat exchange.

[0012] 2. In this utility model, by setting up a baffle and a baffle block structure, the partition plate rotates and drives the baffle, and the baffle makes the vortex effect in the exhaust gas flow process more obvious, further improving the heat exchange efficiency in the operation of the device. Attached Figure Description

[0013] Figure 1 This utility model provides a schematic diagram of a heat exchange device for a marine SCR system;

[0014] Figure 2 This utility model provides a cross-sectional view of a heat exchange device for a marine SCR system;

[0015] Figure 3 This utility model provides a schematic diagram of a heat exchanger partition plate for a ship SCR system;

[0016] Figure 4 This utility model provides a schematic diagram of a sealing plate for a heat exchange device used in a ship SCR system.

[0017] Legend:

[0018] 1. Outer shell; 2. Baffle block; 3. Flange; 4. Slide groove; 5. Divider plate; 6. Heat exchange tube; 7. Sealing plate; 8. Rack; 9. Gear; 10. Motor; 11. Connecting port; 12. Feed cover; 13. Discharge cover; 14. Feed port; 15. Discharge port; 16. Baffle plate. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Example 1

[0022] Please see Figure 1-4 This utility model provides a technical solution: a heat exchange device for a marine SCR system, including a shell 1. A feed cover 12 and a discharge cover 13 are fixedly installed at both ends of the shell 1. A feed inlet 14 and a discharge outlet 15 are connected to the surface of the shell 1. The partitioned design prevents direct contact and contamination of raw materials. Flanges 3 are fixedly installed at both ends of the shell 1. A sliding groove 4 is provided inside the shell 1. A partition plate 5 is slidably connected inside the sliding groove 4. There are seven sets of sliding grooves 4 and partition plates 5, equidistantly distributed. The sliding grooves 4 and partition plates 5 rotate under the drive of a motor 10. The partition plates 5 make the heat exchange tube 6 more stable. A connecting port 11 is provided on the surface of the partition plate 5. Adjacent sets of partition plates... The directions of the connecting ports 11 are opposite. The opposite direction of the connecting ports 11 increases the vortex during exhaust gas flow, thereby improving the heat exchange efficiency. The heat exchange tube 6 is slidably connected inside the partition plate 5. The heat exchange tube 6 is spiral in shape. The spiral shape of the heat exchange tube 6 increases the contact area with the exhaust gas, thereby improving the heat exchange efficiency. At the same time, the spiral shape increases the area and flow rate while reducing the length of the heat exchange tube 6, thereby reducing the volume of the device and making it easier to install on the ship. Sealing plates 7 are fixedly installed at both ends of the heat exchange tube 6. A rack 8 is fixedly installed on the side of the sealing plate 7. A gear 9 is meshed on the side of the rack 8. The output end of the motor 10 is fixedly installed at one end of the gear 9. A sealing ring is fixedly installed between the output end of the motor 10 and the outer casing 1.

[0023] Example 2

[0024] Please see Figure 3A baffle plate 16 is fixedly installed on the surface of the connecting port 11. The baffle plate 16 forms a 30-degree angle with the partition plate 5. A baffle block 2 is fixedly installed on the inner surface of the outer shell 1. Through the action of the baffle plate 16 and the baffle block 2, the vortex of the exhaust gas is increased, so that the exhaust gas can stay in the device for a longer time, making the heat exchange process more complete and reducing energy waste. The rotation of the partition plate 5 drives the baffle plate 16, and the baffle plate 16 makes the vortex effect in the exhaust gas flow process more obvious, further improving the heat exchange efficiency in the operation of the device.

[0025] Working principle: When using this device, connect flange 3, introduce coolant into inlet cover 12, and let the coolant enter heat exchange tube 6. Introduce exhaust gas into inlet 14, and start motor 10. Motor 10 drives gear 9 to rotate sealing plate 7. The rotation of sealing plate 7 causes heat exchange tube 6 and partition plate 5 to rotate. The rotating partition plate 5 and heat exchange tube 6 drive the exhaust gas in the device to rotate. Baffle plate 16 and baffle block 2 generate vortices in the exhaust gas during its rotation, reducing its forward speed and ensuring that the exhaust gas fully contacts heat exchange tube 6, improving the heat utilization rate of the exhaust gas and reducing waste.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A heat exchange device for a marine SCR system, comprising a housing (1), characterized in that: Flanges (3) are fixedly installed at both ends of the outer shell (1). A sliding groove (4) is provided inside the outer shell (1). A partition plate (5) is slidably connected inside the sliding groove (4). A heat exchange tube (6) is slidably connected inside the partition plate (5). A sealing plate (7) is fixedly installed at both ends of the heat exchange tube (6). A rack (8) is fixedly installed on the side of the sealing plate (7). A gear (9) is meshed on the surface of the rack (8). The output end of a motor (10) is fixedly installed at one end of the gear (9). A sealing ring is fixedly installed between the output end of the motor (10) and the outer shell (1).

2. The heat exchange device for a marine SCR system according to claim 1, characterized in that: The number of the chute (4) and the partition plate (5) is seven sets, and the seven sets of the chute (4) and the partition plate (5) are distributed at equal intervals.

3. The heat exchange device for a marine SCR system according to claim 1, characterized in that: The surface of the partition plate (5) is provided with a communication port (11), and the communication ports (11) of two adjacent partition plates (5) are in opposite directions.

4. The heat exchange device for a marine SCR system according to claim 1, characterized in that: The two ends of the outer shell (1) are fixedly installed with a feed cover (12) and a discharge cover (13), and the surface of the outer shell (1) is connected to a feed inlet (14) and a discharge outlet (15).

5. The heat exchange device for a marine SCR system according to claim 1, characterized in that: The heat exchange tube (6) is spiral in shape.

6. The heat exchange device for a marine SCR system according to claim 3, characterized in that: A spoiler (16) is fixedly installed on the surface of the connecting port (11), and the spoiler (16) forms a 30-degree angle with the partition plate (5). A spoiler block (2) is fixedly installed on the inner surface of the outer shell (1).

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