Flow guide silencing sheet of heat exchange tube

Abstract

The utility model belongs to the technical field of heat exchange equipment, and particularly relates to a flow guide silencing sheet of a heat exchange tube, which comprises a silencing sheet main body inserted in the heat exchange tube, a plurality of flow guide sheets are distributed on the silencing sheet main body at equal intervals along the length direction of the silencing sheet main body, a flow guide through hole is arranged on the silencing sheet main body between two adjacent flow guide sheets, and the flow guide through hole is communicated with the silencing sheet main body. The flow deflectors comprise the upper flow deflectors with the outer ends inclining upwards and the lower flow deflectors with the outer ends inclining downwards, and the upper flow deflectors and the lower flow deflectors are alternately distributed in the length direction of the silencing piece body. The silencer is simple in structure and low in cost, the structural design of the silencing sheets is reasonably optimized, liquid can flow up and down in the heat exchange tubes by means of the upper flow deflectors and the lower flow deflectors, and the problem that the temperature of the heat exchange tubes is not uniform up and down is solved.

Description

Technical fields:

[0001] This utility model belongs to the technical field of heat exchange equipment, and specifically refers to a flow guiding and noise reduction plate for a heat exchange tube. Background technology:

[0002] A heat exchanger with a flow-guiding and localized overheating / boiling noise reduction device for water flow, disclosed in a current Chinese utility model patent (authorization announcement number CN215984121U), includes several heat-absorbing tubes arranged side by side. The corresponding ports of adjacent heat-absorbing tubes are connected through a fluid channel. Each heat-absorbing tube has a sound-absorbing plate arranged along its axial direction, and the sound-absorbing plate has several flow-guiding windows. Each flow-guiding window has a flow-guiding element on its front or rear side, including alternating left and right flow-guiding vanes. That is, by configuring the sound-absorbing plate inside the heat-absorbing tube, and with the help of the alternating left and right flow-guiding vanes on the sound-absorbing plate, the disordered flow of liquid can flow orderly left and right at the sound-absorbing plate, effectively reducing water flow noise.

[0003] However, in actual use, it was found that because the liquid only flows left and right between the left and right guide vanes in the heat absorber tube, and the flowing liquid can exchange heat with the heat source located above or below the heat absorber tube, the heat absorber tube has a problem of uneven temperature between the top and bottom. Summary of the Invention:

[0004] The purpose of this invention is to provide a flow guide and noise reduction plate for a heat exchanger tube. The structure of the noise reduction plate is reasonably optimized, and the liquid can flow up and down in the heat exchanger tube by means of the upper and lower flow guide plates, thereby solving the problem of uneven temperature between the upper and lower parts of the heat exchanger tube.

[0005] This utility model is implemented as follows:

[0006] A flow guiding and silencing plate for a heat exchanger tube includes a silencing plate body inserted inside the heat exchanger tube. The silencing plate body has a plurality of flow guiding plates evenly distributed along its length. A flow guiding opening is provided on the silencing plate body between two adjacent flow guiding plates. The flow guiding plates include an upper flow guiding plate with its outer end inclined upward and a lower flow guiding plate with its outer end inclined downward. The upper flow guiding plate and the lower flow guiding plate are alternately distributed along the length of the silencing plate body.

[0007] In the above-mentioned heat exchanger tube flow guide and noise reduction plate, the main body of the noise reduction plate is composed of two sheet metal sheets stacked one on top of the other, the upper flow guide plate is disposed on the upper sheet metal sheet, and the lower flow guide plate is disposed on the lower sheet metal sheet.

[0008] In the above-mentioned heat exchanger tube flow guide and noise reduction plate, the upper flow guide plate and the lower flow guide plate are respectively cut from the corresponding sheet metal body and bent upward or downward, and the notch formed after the sheet metal body is cut and bent is the flow guide port.

[0009] In the aforementioned heat exchanger tube flow guide and noise reduction plate, the two sheet metal plates are fixed together by electric welding or ultrasonic welding.

[0010] In the above-mentioned heat exchange tube flow guide and noise reduction plate, the heat exchange tube is a flat tube structure with the long axis of the tube diameter arranged vertically, and the outer ends of the upper and lower flow guide plates are provided with limiting parts that abut against the long axis end wall of the heat exchange tube.

[0011] In the above-mentioned heat exchanger tube flow guide and noise reduction plate, the included angle between the upper flow guide plate and the lower flow guide plate and the corresponding sheet metal plate is 60°-80°.

[0012] The outstanding advantages of this utility model compared to the prior art are:

[0013] This utility model has a simple structure, low cost, and reasonable optimization of the sound-absorbing plate structure design. With the help of the upper and lower guide plates, the liquid can flow up and down in the heat exchange tube, thereby solving the problem of uneven temperature between the upper and lower parts of the heat exchange tube. Attached image description:

[0014] Figure 1 This is a three-dimensional view of the main body of the sound-absorbing sheet of this utility model;

[0015] Figure 2 This is a cross-sectional view of the structure of the sound-absorbing plate body of this utility model assembled inside the heat exchange tube.

[0016] In the diagram: 1. Heat exchange tube; 2. Silencing plate body; 3. Flow guide port; 4. Upper flow guide plate; 5. Lower flow guide plate; 6. Sheet metal plate body; 7. Limiting part. Detailed implementation method:

[0017] The present invention will be further described below with reference to specific embodiments. See also: Figure 1 —2:

[0018] A flow guiding and silencing plate for a heat exchange tube includes a silencing plate body 2 inserted into the heat exchange tube 1. The silencing plate body 2 has a plurality of flow guiding plates evenly distributed along its length direction. A flow guiding port 3 is opened on the silencing plate body 2 between two adjacent flow guiding plates. The flow guiding plates include an upper flow guiding plate 4 with its outer end inclined upward and a lower flow guiding plate 5 with its outer end inclined downward. The upper flow guiding plate 4 and the lower flow guiding plate 5 are alternately distributed along the length direction of the silencing plate body 2.

[0019] This utility model has a simple structure, low cost, and reasonable optimization of the sound-absorbing plate structure design. With the help of the upper guide plate 4 and the lower guide plate 5, the liquid can flow up and down in the heat exchange tube 1, thereby solving the problem of uneven temperature between the upper and lower parts of the heat exchange tube 1.

[0020] To simplify the structural processing of the sound-absorbing plate body 2, it is composed of two sheet metal sheets 6 stacked one on top of the other. The upper guide vane 4 is disposed on the upper sheet metal sheet 6, and the lower guide vane 5 is disposed on the lower sheet metal sheet 6. While the upper guide vane 4 and lower guide vane 5 can be welded to their respective sheet metal sheets 6, this welding operation is cumbersome and time-consuming. Therefore, in this embodiment, the upper guide vane 4 and lower guide vane 5 are respectively formed by cutting and bending the corresponding sheet metal sheets 6 upwards or downwards. Simultaneously, the notch formed after cutting and bending the corresponding sheet metal sheets 6 serves as the guide opening 3.

[0021] Furthermore, the two sheet metal pieces 6 are fixed together by electric welding or ultrasonic welding.

[0022] In order to ensure that the sound-absorbing plate body 2 can be stably inserted into the heat exchange tube 1, the heat exchange tube 1 is a flat tube structure with the long axis of the tube diameter arranged vertically, and the outer ends of the upper guide plate 4 and the lower guide plate 5 are provided with limiting parts 7 that abut against the long axis end wall of the heat exchange tube 1.

[0023] Furthermore, the included angle between the upper guide vane 4 and the lower guide vane 5 and the corresponding sheet metal body 6 is 60°-80°.

[0024] The above embodiments are only one of the preferred embodiments of this utility model and are not intended to limit the scope of implementation of this utility model. Therefore, all equivalent changes made in accordance with the shape, structure and principle of this utility model should be covered within the protection scope of this utility model.

Claims

1. A flow guiding and silencing plate for a heat exchanger tube, comprising a silencing plate body (2) inserted into a heat exchanger tube (1), characterized in that: The sound-absorbing plate body (2) has a number of guide plates evenly distributed along its length direction. A guide port (3) is opened on the sound-absorbing plate body (2) between two adjacent guide plates. The guide plate includes an upper guide plate (4) with its outer end inclined upward and a lower guide plate (5) with its outer end inclined downward. The upper guide plate (4) and the lower guide plate (5) are alternately distributed along the length direction of the sound-absorbing plate body (2).

2. The flow guiding and noise-absorbing plate for a heat exchanger tube according to claim 1, characterized in that: The sound-absorbing plate body (2) is formed by stacking two sheet metal plates (6) one on top of the other. The upper guide plate (4) is set on the upper sheet metal plate (6), and the lower guide plate (5) is set on the lower sheet metal plate (6).

3. The flow guiding and noise-absorbing plate for a heat exchanger tube according to claim 2, characterized in that: The upper guide vane (4) and the lower guide vane (5) are respectively cut from the corresponding sheet metal sheet (6) and bent upward or downward, and the notch formed after the sheet metal sheet (6) is cut and bent is the guide opening (3).

4. The flow guiding and noise-absorbing plate for a heat exchanger tube according to claim 2, characterized in that: The two sheet metal pieces (6) are fixed together by electric welding or ultrasonic welding.

5. The flow guiding and noise-absorbing plate for a heat exchanger tube according to claim 1, characterized in that: The heat exchange tube (1) is a flat tube structure with its long axis arranged vertically. The outer ends of the upper guide vane (4) and the lower guide vane (5) are provided with limiting parts (7) that abut against the long axis end wall of the heat exchange tube (1).

6. The flow guiding and noise-absorbing plate for a heat exchanger tube according to claim 1, characterized in that: The included angle between the upper guide vane (4) and the lower guide vane (5) and the corresponding sheet metal body (6) is 60°-80°.

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