一种热交换器
By introducing spiral baffles and flow guide sections into the heat exchanger, combined with the design of limiting strips and sealing strips, the problem of dead zone at the root of the baffles is solved, achieving stable fluid flow and efficient heat exchange, and improving the overall heat exchange effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI HUIHUA LIANKE COAL RES & DESIGN CO LTD
- Filing Date
- 2025-09-01
- Publication Date
- 2026-07-17
AI Technical Summary
In existing horizontal shell-and-tube heat exchangers, an approximately triangular heat exchange dead zone is easily formed on both sides of the root of the baffle, resulting in a reduction in heat exchange efficiency.
A spiral baffle is installed inside the second outer shell, with guide sections at both ends to reduce the impact and eddies of the fluid entering. Limiting strips and sealing strips are installed at the edges of the spiral baffle to improve the sealing effect. The spiral baffle is supported by a connecting cylinder and a positioning plate to ensure stable fluid flow and sealing.
It increases the turbulence of the fluid, reduces the heat exchange dead zone, enhances the heat exchange effect, and prevents fluid cross-flow through a multi-seal structure, thereby improving the overall heat exchange efficiency.
Smart Images
Figure CN224517501U_ABST
Abstract
Claims
1. A heat exchanger, characterized by, Includes a second outer shell (2), inside which heat exchange tube (4) and spiral baffle (5) are respectively provided. Both ends of the heat exchange tube (4) are provided with connecting mechanisms (9), and one side of the connecting mechanism (9) is connected to a connecting cylinder (3) for introducing a first fluid into the heat exchange tube (4) through the connecting cylinder (3). The second outer shell (2) is provided with a first outer shell (1) at both ends, and the first outer shell (1) is provided with a first opening (104) along the extension direction of the spiral baffle (5) to reduce the impact and eddy current of the second fluid entering; The first outer shell (1) includes a first guide section (101), and a straight section (102) is fixedly connected to the first guide section (101) on one side facing the second outer shell (2). A second guide section (103) is provided on the straight section (102) on one side facing the second outer shell (2). The side of the second guide section (103) away from the straight section (102) is connected to the interior of the second outer shell (2) so that the second fluid can stably enter the second outer shell (2).
2. The heat exchanger of claim 1, wherein: A connecting pipe is fixedly connected to one side of the connecting cylinder (3), and the connecting pipe extends through the straight cylinder section (102) to the outside for introducing the first fluid; The connecting cylinder (3) has a spherical surface on the side facing the first opening (104) to reduce the resistance to the flow of the second fluid.
3. The heat exchanger of claim 2, wherein: Both ends of the second guide section (103) are detachably connected to the second guide section (103) and the second outer shell (2), respectively.
4. The heat exchanger of claim 1, wherein: The second outer shell (2) is provided with a sealing structure inside, and the sealing structure is located at the position where the spiral baffle (5) contacts the inner wall of the second outer shell (2), so as to play a sealing role; The sealing structure includes two spiral limiting strips (8), and the two limiting strips (8) are located on both sides of the spiral baffle (5), and the outer side of the spiral of the two limiting strips (8) abuts against the inner wall of the second shell (2), and a sealing strip is provided at the position where the limiting strips (8) contact the second shell (2) and the spiral baffle (5); A positioning groove is provided at the position where the second outer shell (2) and the second guide section (103) come into contact. A second positioning ring (7) is engaged in the positioning groove. The inner wall of the second positioning ring (7) is fixedly connected to one end of the limiting strip (8).
5. The heat exchanger of claim 4, wherein: A fixed tube (6) is fixedly connected to the middle of the spiral baffle (5), and the two ends of the fixed tube (6) are respectively connected to the corresponding connecting mechanism (9) for positioning and supporting the spiral baffle (5).
6. The heat exchanger of claim 5, wherein: The connecting mechanism (9) includes a first positioning plate (901), one side of which is connected to the fixed tube (6), and a protruding ring (903) is fixedly connected to the other side of the first positioning plate (901). One side of the protruding ring (903) is inserted into one side of the connecting cylinder (3) to support and fix the first positioning plate (901).
7. The heat exchanger of claim 6, wherein: The first positioning plate (901) has a fixing groove on the side away from the fixing tube (6). The fixing groove is provided with a second positioning plate (902). The second positioning plate (902) and the first positioning plate (901) are provided with several corresponding limiting holes. The end of a heat exchange tube (4) is provided in each of the several limiting holes so that the heat exchange tube (4) passes through the second positioning plate (902) and the first positioning plate (901). The heat exchange tube (4) is connected to the connecting cylinder (3). The inner diameter of the side of the connecting cylinder (3) that contacts the first positioning plate (901) is smaller than the outer diameter of the second positioning plate (902), and the second positioning plate (902) and the side of the first positioning plate (901) that contacts the connecting cylinder (3) are coplanar, so that the connecting cylinder (3) plays a positioning and supporting role for the second positioning plate (902).
8. The heat exchanger of claim 7, wherein: The heat exchange tube (4) includes a tube body (401). The tube body (401) is threaded near both ends. The threaded portion of the tube body (401) is located outside the two first positioning plates (901). A first positioning ring (403) is threaded on the tube body (401). One side of the first positioning ring (403) is in contact with the side of the first positioning plate (901) away from the fixed tube (6). The first positioning ring (403) is inserted into the second positioning plate (902).