U-shaped heat exchange tube tail supporting device

Abstract

The application relates to a U-shaped heat exchange pipe tail supporting device, which comprises a supporting frame, a first support welded with the supporting frame and a plurality of second supports welded between the supporting frame and the first support, a plurality of supporting rods in parallel are welded on the second supports, the supporting rods are arranged in a wave shape, and the radians of every two adjacent supporting rods are symmetrical, the U-shaped heat exchange pipe tail supporting device is simple in structure and convenient to install, compared with the existing technology of supporting the heat exchange pipe by using a clamping strip, the heat exchange pipe is supported by the wave-shaped supporting rods with symmetrical radians, the supporting strength is high, the manufacturing difficulty is low, processing is facilitated, and the production cost is greatly reduced.

Description

Technical Field

[0001] This invention relates to the field of heat exchangers, and more particularly to a U-shaped heat exchange tube tail support device. Background Technology

[0002] A heat exchanger is a device that facilitates heat transfer between two or more fluids at different temperatures. The fluids do not mix directly; heat is transferred from the high-temperature fluid to the low-temperature fluid through a heat transfer surface, thereby meeting process temperature requirements and improving energy efficiency. It is widely used in industries such as chemical, petroleum, power, refrigeration, food, pharmaceutical, shipbuilding, and HVAC.

[0003] U-tube heat exchangers are a type of shell-and-tube heat exchanger, consisting of a tube box, shell, and tube bundle as its main components. They are named for the U-shape of their heat exchange tubes. U-tube heat exchangers use only one tube sheet, with both ends of the tubes fixed to the same sheet. The tube bundle can expand and contract freely, resulting in high pressure resistance. U-tube heat exchangers are a commonly used shell-and-tube heat exchanger structure in industries such as petrochemicals and energy. They are suitable for heat exchangers operating at high temperatures, high pressures, and large temperature differences, and their shell-side media are often critical process media or flammable and explosive hazardous media.

[0004] Since only one tube sheet is used, a support device is needed at the tail of the U-shaped tube for support. Please refer to prior art ZL2007201580391, which discloses a U-shaped tube heat exchanger structure. Its tail support structure involves inserting long strips of thin steel plates between each row of heat exchange tubes in the U-shaped tube, connecting the steel plates in series with tie rods, and spacing the steel plates with spacer tubes. The ends of the tie rods are fixed to channel steel, tightened with nuts, and spot-welded. The channel steel is welded to the last support plate. The drawbacks of this U-shaped tube tail support structure are: low support strength, relatively complex structure, high manufacturing difficulty, inconvenient processing, and high production cost.

[0005] Therefore, it is necessary to provide a U-shaped heat exchanger tube tail support device to solve the above-mentioned technical problems. Summary of the Invention

[0006] To address the aforementioned problems, the present invention aims to provide a U-shaped heat exchanger tube tail support device that reduces manufacturing difficulty and facilitates processing.

[0007] To achieve the above objectives, the technical solution adopted by the present invention is as follows: a U-shaped heat exchanger tube tail support device, comprising: a support frame, a first bracket welded to the support frame, and a plurality of second brackets welded between the support frame and the first bracket. The second brackets are welded with a plurality of parallel support rods, the support rods being wavy and the curvature of each pair of adjacent support rods being symmetrical.

[0008] The tail support device of the U-shaped heat exchange tube in this invention is further configured such that: the number of the second brackets is three, and each pair of adjacent second brackets is arranged at a 45° angle.

[0009] The tail support device of the U-shaped heat exchanger tube in this invention is further configured such that the support frame includes a first straight segment, a second straight segment, a first arc segment, and a second arc segment.

[0010] The tail support device of the U-shaped heat exchange tube in this invention is further configured such that: the second support is composed of five straight segments, and the two straight segments located at the outermost edge are respectively welded to the support frame.

[0011] The tail support device of the U-shaped heat exchanger tube in this invention is further configured such that the support frame, the first bracket, the second bracket and the support rod are all made of stainless steel.

[0012] The tail support device of the U-shaped heat exchanger tube in this invention is further configured such that the first bracket, the second bracket and the support rod are all made of round steel.

[0013] The tail support device of the U-shaped heat exchanger tube in this invention is further configured such that the support frame is made of flat steel.

[0014] The U-shaped heat exchanger tube tail support device of the present invention is further configured such that the inner wall of the support frame is in close contact with the heat exchanger tube at the edge.

[0015] The tail support device of the U-shaped heat exchange tube in this invention is further configured such that the first support is semi-circular.

[0016] Compared with the prior art, the present invention has the following beneficial effects: the U-shaped heat exchange tube tail support device of the present invention has a simple structure and is easy to install. Compared with the prior art of using clips to support the heat exchange tube, the present invention supports the heat exchange tube with a symmetrical wave-shaped support rod, which not only has high support strength, but also has low manufacturing difficulty, which is conducive to processing and greatly reduces production costs. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of the U-shaped heat exchanger tube tail support device in this invention.

[0018] Figure 2 This is a side view of the U-shaped heat exchanger tube tail support device in this invention.

[0019] Figure 3 For along Figure 1 A schematic diagram of the cross-sectional structure along line AA.

[0020] Figure 4 for Figure 3 A magnified schematic diagram of the structure at point B in the middle.

[0021] Figure 5 for Figure 3 A magnified schematic diagram of the structure at point C.

[0022] Figures 1 to 5 In the middle: 1. Support frame, 10. First straight segment, 11. Second straight segment, 12. First arc segment, 13. Second arc segment, 2. First bracket, 3. Second bracket, 4. Support rod, 5. Heat exchange tube. Detailed Implementation

[0023] The following detailed description of a U-shaped heat exchanger tube tail support device according to the present invention is provided through specific embodiments.

[0024] Please see Figures 1 to 5 A U-shaped heat exchanger tube tail support device includes: a support frame 1, a first bracket 2 welded to the support frame 1, and a plurality of second brackets 3 welded between the support frame 1 and the first bracket 2. The first bracket 2 is semi-circular, and a plurality of parallel support rods 4 are welded to the second brackets 3. The support rods 4 are wavy, and the arc of each pair of adjacent support rods 4 is symmetrical. In this embodiment, there are three second brackets 3, and each pair of adjacent second brackets 3 is arranged at a 45° angle. The support frame 1 includes a first straight segment 10, a second straight segment 11, a first arc segment 12, and a second arc segment 13. The second brackets 3 consist of five straight segments, and the two outermost straight segments are welded to the support frame 1. In this embodiment, the support frame 1, the first bracket 2, the second brackets 3, and the support rods 4 are all made of stainless steel, thus having good corrosion resistance. The first bracket 2, the second bracket 3, and the support rods 4 are all made of round steel, and the support frame 1 is made of flat steel, thus having high structural strength. The inner wall of the support frame 1 is in close contact with the heat exchange tube at the edge.

[0025] In summary, the U-shaped heat exchanger tube tail support device of the present invention has a simple structure and is easy to install. Compared with the prior art that uses clips to support the heat exchanger tube, the present invention uses a wave-shaped support rod 4 with a relatively symmetrical arc to support the heat exchanger tube 5, which not only has high support strength, but also has low manufacturing difficulty, which is conducive to processing and greatly reduces production costs.

[0026] The above embodiments are merely illustrative of the principles and effects of the present invention, as well as some examples of its application, and are not intended to limit the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. A U-shaped heat exchanger tube tail support device, characterized in that: include: The support frame, the first bracket welded to the support frame, and several second brackets welded between the support frame and the first bracket, wherein several parallel support rods are welded on the second brackets, the support rods are wavy and the curvature of each two adjacent support rods is symmetrical.

2. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The number of the second brackets is three, and each pair of adjacent second brackets is set at a 45° angle.

3. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The support frame includes a first straight segment, a second straight segment, a first circular arc segment, and a second circular arc segment.

4. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The second support consists of five straight segments, with the two outermost segments welded to the support frame.

5. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The support frame, the first bracket, the second bracket, and the support rod are all made of stainless steel.

6. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The first bracket, the second bracket, and the support rod are all made of round steel.

7. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The support frame is made of flat steel.

8. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The inner wall of the support frame is in close contact with the heat exchange tube at the edge.

9. The U-shaped heat exchanger tube tail support device as described in claim 1, characterized in that: The first bracket is semi-circular in shape.

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