Stainless steel heat exchanger
By using stainless steel sheets to roll the heat exchange pipe and installing protrusions and reinforcement plates around it, the high cost problems caused by copper pipes in the prior art are solved, and the cost reduction and heat exchange effect are improved.
Patent Information
- Application Number
- CN202421676250.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-16
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-07-16
AI Technical Summary
The use of copper pipes in existing seafrystalline heat exchangers leads to high cost problems.
The heat exchange tube is rolled with 1-1.2mm stainless steel plates, and heat exchange protrusions and reinforcement plates are installed around the heat exchange tube to increase the heat exchange area.
Reduces costs while maintaining or improving heat exchange effects.
Smart Images
Figure CN223138424U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat exchangers, in particular to a stainless steel heat exchanger. Background Art
[0002] The marine seawater-freshwater heat exchanger is internally provided with heat exchange tubes. Seawater passes through the inside of the heat exchange tubes, and freshwater passes through the outside of the heat exchange tubes for heat exchange. In order to improve the heat exchange efficiency, the heat exchange tubes in the existing seawater-freshwater heat exchangers are made of copper tubes with a wall thickness of 2 mm. And there are many copper tubes arranged in the seawater-freshwater heat exchanger, which results in a very high cost of the heat exchanger. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is to provide a stainless steel heat exchanger aiming at the deficiencies of the above-mentioned existing technologies. To solve the above technical problems, the technical solution adopted by the utility model is:
[0004] A stainless steel heat exchanger includes a heat exchanger housing. A fresh water inlet and a fresh water outlet are arranged on the heat exchanger housing. End covers are arranged on both sides of the heat exchanger housing. A seawater inlet is connected to one of the end covers, and a seawater outlet is connected to the other end cover. Heat exchange tubes are arranged between the end covers. Tube plates are connected to both sides of the heat exchange tubes. The heat exchange tubes are wound from 1-1.2 mm stainless steel plates, and the joints of the stainless steel plates are connected by welding. Heat exchange protrusions are evenly distributed around the heat exchange tubes, and inner cavities communicating with the inside of the heat exchange tubes are arranged in the heat exchange protrusions.
[0005] Further, arc corners are arranged on the inner periphery of the heat exchange protrusions.
[0006] Further, connection holes adapted to the outer shape of the heat exchange tubes are machined on the tube plates, and both ends of the heat exchange tubes are inserted and fixed in the connection holes.
[0007] Further, a beam tube plate is connected to the heat exchange tubes.
[0008] Further, reinforcing rib plates are connected between the heat exchange protrusions.
[0009] Compared with the existing technology, the stainless steel heat exchanger of the utility model uses stainless steel to make the heat exchange tubes, reducing the cost. At the same time, heat exchange protrusions are arranged around the heat exchange tubes to increase the heat exchange area and ensure the heat exchange effect. Description of the Drawings
[0010] Figure 1 is the structural schematic diagram of the utility model;
[0011] Figure 2 is the side view of the heat exchange tube of the utility model;
[0012] Figure 3It is the front view of the heat exchange tube of the present utility model;
[0013] Figure 4 It is the structural schematic diagram of the tube sheet of the present utility model;
[0014] Wherein, 1. Heat exchanger shell, 2. Fresh water inlet, 3. Fresh water outlet, 4. End cover, 5. Seawater inlet, 6. Seawater outlet, 7. Heat exchange tube, 8. Tube sheet, 9. Bundle tube sheet, 10. Heat exchange protrusion, 11. Reinforcing rib plate, 12. Inner cavity, 13. Arc angle, 14. Connecting hole. Specific embodiments
[0015] Next, the technical solutions in the embodiments of the present utility model will be described clearly and completely.
[0016] As Figures 1 to 4 shown, a stainless steel heat exchanger includes a heat exchanger shell 1, a fresh water inlet 2 and a fresh water outlet 3 are arranged on the heat exchanger shell 1, end covers 4 are arranged on both sides of the heat exchanger shell 1, and the end covers 4 are fixed on the heat exchanger shell 1 by bolts. A seawater inlet 5 is connected to one of the end covers 4, and a seawater outlet 6 is connected to the other end cover 4. Heat exchange tubes 7 are arranged between the end covers 4. Tube sheets 8 are connected to both sides of the heat exchange tubes 7. Connecting holes are opened on the tube sheets 8 to fix the heat exchange tubes. A bundle tube sheet 9 is connected to the heat exchange tube 7, and the bundle tube sheet 9 restricts the heat exchange tube 7 to prevent the heat exchange tube 7 from loosening.
[0017] In this embodiment, the heat exchange tube 7 is formed by rolling a 1-1.2 mm stainless steel plate, and the joints of the stainless steel plates are welded by argon arc welding. Heat exchange protrusions 10 are evenly distributed around the heat exchange tube 7, and the heat exchange protrusions 10 are connected by reinforcing rib plates 11. The reinforcing rib plates 11 are evenly distributed on the heat exchange tube. An inner cavity 12 is arranged in the heat exchange protrusion 10 and is communicated with the inside of the heat exchange tube 7. In this way, during the heat exchange process, seawater passes through the inner cavities of the heat exchange tube and the heat exchange protrusions and exchanges heat with the external fresh water. The heat exchange area is increased by using the heat exchange protrusion part to ensure that the original heat exchange effect can be achieved.
[0018] An arc angle 13 is arranged on the inner periphery of the heat exchange protrusion 10 to reduce the water flow resistance by using the arc angle 13.
[0019] Connecting holes 14 adapted to the outer shape of the heat exchange tube 7 are machined on the tube sheet 8. In this embodiment, the connecting holes 14 are plum blossom-shaped holes, and both ends of the heat exchange tube 7 are inserted and fixed in the connecting holes 14.
[0020] The present utility model is not limited to the described embodiments. Those skilled in the art can still make some modifications or changes without departing from the spirit of the present utility model, that is, within the scope of disclosure. Therefore, the scope of the right protection of the present utility model is subject to the scope defined by the claims.
Claims
1. A stainless steel heat exchanger, comprising a heat exchanger housing, a fresh water inlet and a fresh water outlet are arranged on the heat exchanger housing, end covers are arranged on both sides of the heat exchanger housing, a sea water inlet is connected to one of the end covers, a sea water outlet is connected to the other end cover, heat exchange tubes are arranged between the end covers, tube plates are connected to both sides of the heat exchange tubes, and the characteristics are as follows: The heat exchange tube is formed by rolling 1-1.2 mm stainless steel plates, and the joints of the stainless steel plates are connected by welding. Heat exchange protrusions are evenly distributed around the heat exchange tube, and an inner cavity is arranged inside the heat exchange protrusions and communicated with the inside of the heat exchange tube.
2. The stainless steel heat exchanger according to claim 1, wherein: Arc corners are arranged on the inner periphery of the heat exchange protrusions.
3. A stainless steel heat exchanger according to claim 1, characterized in that: Connection holes adapted to the outer shape of the heat exchange tube are machined on the tube sheet, and both ends of the heat exchange tube are inserted and fixed in the connection holes.
4. A stainless steel heat exchanger according to claim 1, characterized in that: A bundle tube sheet is connected to the heat exchange tube.
5. A stainless steel heat exchanger according to claim 1, characterized in that: Reinforcing rib plates are connected between the heat exchange protrusions.