A silicon-aluminum-magnesium heat exchanger
By employing a double-ring cavity counter-flow structure and silicon-aluminum-magnesium alloy materials, the problems of low thermal conductivity and easy corrosion and scaling in heat exchange equipment have been solved, achieving efficient heat exchange and convenient maintenance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHAANXI LIANBAO BOILER CO LTD
- Filing Date
- 2025-09-11
- Publication Date
- 2026-07-31
AI Technical Summary
Existing heat exchange equipment has a low thermal conductivity, limited waste heat recovery efficiency, and is prone to corrosion and cracking under highly corrosive media. After long-term use, it is prone to scaling and clogging, resulting in high maintenance costs and inconvenient cleaning.
It adopts a double-ring cavity counter-flow structure, where the high-temperature medium flows centrifugally through clockwise blades and the low-temperature medium moves axially through counter-clockwise blades. By utilizing counter-flow heat exchange and modular design, combined with silicon-aluminum-magnesium alloy materials, it improves thermal conductivity and facilitates disassembly and cleaning.
It improves heat exchange efficiency, reduces scaling, lowers maintenance difficulty and cost, and achieves efficient heat transfer and convenient maintenance.
Smart Images
Figure CN224580770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of heat exchange device technology, and in particular to a silicon-aluminum-magnesium heat exchange device. Background Technology
[0002] A heat exchanger is a device used to transfer heat between different media. It is widely used in industries such as industry, energy, chemical industry, and HVAC. Through direct or indirect contact between hot and cold fluids, heat is transferred from a high-temperature medium to a low-temperature medium to achieve the purpose of heating, cooling or energy recovery. Its core functions include waste heat recovery, medium cooling or heating and efficient energy conversion. It plays a key role in scenarios such as petroleum refining, power systems, and air conditioning and refrigeration.
[0003] In the operation of existing heat exchange equipment, the copper alloy components have low thermal conductivity and limited waste heat recovery efficiency. When exchanging heat with highly corrosive media, the inner wall of the heat exchange equipment is prone to pitting corrosion and cracking, requiring frequent replacement of components, which increases the maintenance cost of the equipment. Moreover, after long-term use, the equipment is prone to scaling and blockage inside, making it difficult to disassemble and clean the heat exchange equipment, and easily leading to uneven heat exchange.
[0004] Therefore, in response to the problems of low thermal conductivity, limited waste heat recovery efficiency, and susceptibility to pitting corrosion and cracking caused by highly corrosive media, as well as the tendency for internal scaling and blockage after prolonged use, this invention addresses these issues by setting up a double-ring cavity counter-flow structure. This structure allows the high-temperature medium to flow centrifugally through clockwise blades, while the low-temperature medium moves axially through counter-clockwise blades. The two exchange heat through the heat-conducting plate wall in a counter-current manner, thereby improving heat exchange efficiency. The modular structure supports quick disassembly and maintenance, allowing the spiral blades and heat-conducting plate to be cleaned separately, thus reducing the scaling rate of the device and achieving a balance between efficient heat transfer and convenient maintenance. Utility Model Content
[0005] To overcome the limitations of existing heat exchange equipment, where copper alloy components have low thermal conductivity and limited waste heat recovery efficiency, and are prone to pitting corrosion and cracking on the inner wall of the equipment when exchanging heat with highly corrosive media, frequent component replacement is required, increasing maintenance costs. Furthermore, after prolonged use, the equipment is prone to scaling and blockage, making disassembly and cleaning difficult and leading to uneven heat exchange.
[0006] The technical solution of this utility model is as follows: a silicon-aluminum-magnesium heat exchange device, including a heat exchange outer cylinder, a support base welded and fixed to the outer side of the heat exchange outer cylinder, flanges symmetrically welded and fixed to the outer sides of both ends of the heat exchange outer cylinder, mounting holes opened on the side of the flanges, connectors symmetrically connected and installed on both sides of the heat exchange outer cylinder, connecting holes opened on the side of the connectors, the mounting holes communicating with the connecting holes, and locking bolts threadedly connected to the inner walls of the mounting holes and the connecting holes.
[0007] Preferably, the support bases are symmetrically distributed on the outer side of the heat exchange outer cylinder, the flange and the heat exchange outer cylinder are an integrated structure, the mounting holes are distributed at equal angles on the flange, the connector fits against the side of the flange, the connecting holes are distributed at equal angles on the connector, and the connector is connected and fixed to the flange by locking bolts.
[0008] Preferably, the connector has a slot on its side, a sealing gasket is installed on the inner wall of the slot, and a heat-conducting plate is engaged with the inner wall of the slot, with the heat-conducting plate disposed between the two sets of connectors.
[0009] Preferably, a first annular cavity is provided between the inner wall of the heat exchange outer cylinder and the outer surface of the heat-conducting plate, and a clockwise spiral blade is provided inside the first annular cavity. A second annular cavity is provided inside the heat-conducting plate, and a counterclockwise spiral blade is provided inside the second annular cavity.
[0010] Preferably, one end of the clockwise spiral blade is fixedly connected to the inner side of a set of connectors, and the clockwise spiral blade is in contact with the inner wall of the heat exchange outer cylinder and the outer surface of the heat conduction plate. One end of the counterclockwise spiral blade is fixedly connected to the inner side of another set of connectors, and the counterclockwise spiral blade is in contact with the inner wall of the heat conduction plate.
[0011] Preferably, a first feed pipe is fixedly connected to the outer side of one end of the heat exchange outer cylinder, and a first discharge pipe is fixedly connected to the outer side of the other end of the heat exchange outer cylinder. The first feed pipe and the first discharge pipe communicate with the first annular cavity.
[0012] Preferably, a second feed pipe is fixedly connected to the outer side of one set of the connectors, the second feed pipe being located near the first discharge pipe, and a second discharge pipe is fixedly connected to the outer side of the other set of the connectors, the second discharge pipe being located near the first feed pipe, and the second feed pipe and the second discharge pipe communicating with the second annular cavity.
[0013] The beneficial effects of this utility model are:
[0014] 1. High-temperature medium is injected into the first annular cavity through the first feed pipe. The high-temperature medium is driven by clockwise spiral blades to form a centrifugal flow and is discharged from the first discharge pipe. The diagonal arrangement of the first feed pipe and the first discharge pipe makes the temperature gradient uniform and improves the heat exchange area utilization rate. Low-temperature medium is introduced through the second feed pipe close to the first discharge pipe. The low-temperature medium is guided to move axially by counterclockwise spiral blades. The high-temperature medium flowing in the first annular cavity and the low-temperature medium flowing in the second annular cavity exchange heat through the wall of the heat-conducting plate. The residence time of the medium is extended by the two sets of spiral blades with opposite directions. The counter-current principle is used to synergistically enhance the convective heat exchange of the two media. After absorbing the residual heat of the high-temperature medium, it is discharged from the second discharge pipe, thereby improving the heat exchange efficiency and reducing the deposition of particulate matter in the medium, thus reducing the occurrence of scaling.
[0015] 2. When maintenance and cleaning of the device are required, loosen the locking bolts to disassemble the two sets of connectors from the heat exchange outer cylinder. After separating the counterclockwise spiral blades from one side of the heat exchange outer cylinder along with one set of connectors, remove the heat-conducting plate from the heat exchange outer cylinder on the same side. Then, separate the clockwise spiral blades from the other side of the heat exchange outer cylinder along with the other set of connectors. This facilitates maintenance and cleaning to reduce scaling. After cleaning, reassemble and connect the connectors to the heat exchange outer cylinder in reverse order. The silicone sealing gasket embedded in the slot will press the heat-conducting plate between the two sets of connectors after they are installed and connected to the heat exchange outer cylinder, thus filling the assembly gap between the connectors and enabling quick maintenance of the equipment. Attached Figure Description
[0016] Figure 1 The diagram shown is a three-dimensional structural schematic of the present invention.
[0017] Figure 2 The diagram shown is a three-dimensional structural diagram of the entire utility model disassembled.
[0018] Figure 3 The diagram shown is a three-dimensional structural schematic of the heat exchange outer cylinder of this utility model;
[0019] Figure 4 The diagram shown is a three-dimensional structural schematic of the counterclockwise spiral blade of this utility model.
[0020] Figure 5 The diagram shown is a three-dimensional structural schematic of the clockwise spiral blade of this utility model;
[0021] Figure 6 The diagram shown is a three-dimensional cross-sectional view of the heat exchange outer cylinder of this utility model.
[0022] Figure 7 The diagram shown is a three-dimensional cross-sectional view of the connector of this utility model.
[0023] Explanation of reference numerals in the attached drawings: 1. Heat exchange outer cylinder; 2. Support base; 3. Flange; 4. Mounting hole; 5. Connector; 6. Connecting hole; 7. Locking bolt; 8. Slot; 9. Sealing gasket; 10. Heat-conducting plate; 11. First annular cavity; 12. Clockwise spiral blade; 13. Second annular cavity; 14. Counterclockwise spiral blade; 15. First feed pipe; 16. First discharge pipe; 17. Second feed pipe; 18. Second discharge pipe. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0025] Please see Figures 1-7 This utility model provides an embodiment: a silicon-aluminum-magnesium heat exchange device, including a heat exchange outer cylinder 1, a support base 2 welded and fixed to the outer side of the heat exchange outer cylinder 1, flanges 3 symmetrically welded and fixed to the outer sides of both ends of the heat exchange outer cylinder 1, mounting holes 4 are opened on the side of the flanges 3, connectors 5 are symmetrically connected and installed on both sides of the heat exchange outer cylinder 1, and connecting holes 6 are opened on the side of the connectors 5. The mounting holes 4 and the connecting holes 6 are in communication, and locking bolts 7 are threadedly connected to the inner walls of the mounting holes 4 and the connecting holes 6.
[0026] Support bases 2 are symmetrically distributed on the outer side of the heat exchange outer cylinder 1. The flange 3 and the heat exchange outer cylinder 1 are an integrated structure. Mounting holes 4 are distributed at equal angles on the flange 3. Connector 5 fits against the side of the flange 3. Connecting holes 6 are distributed at equal angles on the connector 5. Connector 5 is connected and fixed to the flange 3 by locking bolts 7. The heat exchange outer cylinder 1, made of silicon-aluminum-magnesium alloy, has the characteristics of high temperature resistance and corrosion resistance, thereby increasing the strength and service life of the heat exchange outer cylinder 1. Support bases 2 provide support for the heat exchange outer cylinder 1. Locking bolts 7 can connect and fix connector 5 to the heat exchange outer cylinder 1. The rubber gasket between the flange 3 and connector 5 can ensure the sealing of the device.
[0027] A slot 8 is provided on the side of the connector 5. A sealing gasket 9 is installed on the inner wall of the slot 8. A heat-conducting plate 10 is engaged with the inner wall of the slot 8. The heat-conducting plate 10 is placed between the two sets of connectors 5. After the two sets of connectors 5 are installed and connected to the heat exchange outer cylinder 1 through the silicone sealing gasket 9 embedded in the slot 8, the heat-conducting plate 10 will be squeezed between the two sets of connectors 5, thereby filling the assembly gap between the connectors 5. The heat can be transferred between the first annular cavity 11 and the second annular cavity 13 through the heat-conducting plate 10.
[0028] A first annular cavity 11 is provided between the inner wall of the heat exchange outer cylinder 1 and the outer surface of the heat-conducting plate 10. A clockwise spiral blade 12 is provided inside the first annular cavity 11. A second annular cavity 13 is provided inside the heat-conducting plate 10. A counterclockwise spiral blade 14 is provided inside the second annular cavity 13. The high-temperature medium flowing in the first annular cavity 11 and the low-temperature medium flowing in the second annular cavity 13 exchange heat in a countercurrent manner through the wall of the heat-conducting plate 10. The residence time of the medium can be extended by the two sets of spiral blades with opposite directions, thereby improving the heat exchange efficiency.
[0029] One end of the clockwise spiral blade 12 is fixedly connected to the inner side of a set of connectors 5. The clockwise spiral blade 12 is in contact with the inner wall of the heat exchange outer cylinder 1 and the outer surface of the heat conduction plate 10. One end of the counterclockwise spiral blade 14 is fixedly connected to the inner side of another set of connectors 5. The counterclockwise spiral blade 14 is in contact with the inner wall of the heat conduction plate 10. The clockwise spiral blade 12 pushes the high-temperature medium to form a centrifugal flow, and the counterclockwise spiral blade 14 guides the low-temperature medium to move axially. The counterclockwise spiral channel synergistically enhances convective heat transfer, improves heat exchange efficiency, and reduces the deposition of particulate matter in the medium.
[0030] A first feed pipe 15 is fixedly connected to the outer side of one end of the heat exchange outer cylinder 1, and a first discharge pipe 16 is fixedly connected to the outer side of the other end of the heat exchange outer cylinder 1. The first feed pipe 15 and the first discharge pipe 16 are in communication with the first annular cavity 11. High-temperature medium is injected into the first annular cavity 11 through the first feed pipe 15. After being disturbed by the clockwise spiral blades 12, it is discharged from the first discharge pipe 16. It does not mix with the low-temperature medium throughout the process. The diagonal arrangement of the first feed pipe 15 and the first discharge pipe 16 makes the temperature gradient uniform and improves the heat exchange area utilization rate.
[0031] A second feed pipe 17 is fixedly connected to the outside of one set of connectors 5. The second feed pipe 17 is located near the first discharge pipe 16. A second discharge pipe 18 is fixedly connected to the outside of another set of connectors 5. The second discharge pipe 18 is located near the first feed pipe 15. The second feed pipe 17 and the second discharge pipe 18 are connected to the second annular cavity 13. Low temperature medium is introduced through the second feed pipe 17 near the first discharge pipe 16. The waste heat of the high temperature medium is absorbed by the principle of convection and then discharged from the second discharge pipe 18, thereby improving the waste heat recovery rate of the device.
[0032] Working principle: According to Figures 1-7As shown, during operation, a high-temperature medium is injected into the first annular cavity 11 through the first feed pipe 15. The high-temperature medium is driven by the clockwise spiral blades 12 to form a centrifugal flow and is discharged from the first discharge pipe 16. The diagonal arrangement of the first feed pipe 15 and the first discharge pipe 16 makes the temperature gradient uniform and improves the heat exchange area utilization rate. A low-temperature medium is introduced through the second feed pipe 17, which is close to the first discharge pipe 16. The low-temperature medium is guided to move axially by the counterclockwise spiral blades 14, so that the high-temperature medium flowing in the first annular cavity 11 and the low-temperature medium flowing in the second annular cavity 13 can exchange heat in a countercurrent manner through the wall of the heat-conducting plate 10. The two sets of spiral blades with opposite directions of rotation extend the residence time of the medium. The countercurrent principle is used to synergistically enhance the convective heat exchange of the two sets of media. After absorbing the residual heat of the high-temperature medium, it is discharged from the second discharge pipe 18, thereby improving the heat exchange efficiency and reducing the deposition of particulate matter in the medium, thus reducing the occurrence of scaling.
[0033] according to Figures 1-7 As shown, when the device needs maintenance and cleaning, the two sets of connectors 5 are disassembled from the heat exchange outer cylinder 1 by loosening the locking bolts 7. After the counterclockwise spiral blades 14 are pulled out from one side of the heat exchange outer cylinder 1 along with one set of connectors 5, the heat-conducting plate 10 is taken out from the heat exchange outer cylinder 1 on the same side. Then, the clockwise spiral blades 12 are pulled out from the other side of the heat exchange outer cylinder 1 along with the other set of connectors 5, which facilitates maintenance and cleaning to reduce scaling. After cleaning, the two sets of connectors 5 are assembled with the heat exchange outer cylinder 1 in reverse order. Through the silicone sealing gasket 9 embedded in the slot 8, after the two sets of connectors 5 are installed and connected to the heat exchange outer cylinder 1, the heat-conducting plate 10 will be squeezed between the two sets of connectors 5, thereby filling the assembly gap between the connectors 5 and realizing quick maintenance of the equipment.
[0034] The above is the entire working process of the device, and all contents not described in detail in this specification are existing technologies known to those skilled in the art.
[0035] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A silicon-aluminum-magnesium heat exchange device comprising a heat exchange outer cylinder (1), characterized in that: A support base (2) is welded and fixed to the outside of the heat exchange outer cylinder (1). Flanges (3) are symmetrically welded and fixed to the outside of both ends of the heat exchange outer cylinder (1). Mounting holes (4) are opened on the side of the flanges (3). Connecting heads (5) are symmetrically connected and installed on both sides of the heat exchange outer cylinder (1). Connecting holes (6) are opened on the side of the connecting heads (5). The mounting holes (4) and connecting holes (6) are interconnected. Locking bolts (7) are threadedly connected to the inner walls of the mounting holes (4) and connecting holes (6).
2. A silicon-aluminum-magnesium heat exchanger according to claim 1, characterized in that: The support base (2) is symmetrically distributed on the outside of the heat exchange outer cylinder (1). The flange (3) and the heat exchange outer cylinder (1) are an integral structure. The mounting holes (4) are distributed at equal angles on the flange (3). The connector (5) fits against the side of the flange (3). The connecting holes (6) are distributed at equal angles on the connector (5). The connector (5) is connected and fixed to the flange (3) by locking bolts (7).
3. The silicon-aluminum-magnesium heat exchanger according to claim 1, characterized in that: The connector (5) has a slot (8) on its side. A sealing gasket (9) is installed on the inner wall of the slot (8). A heat-conducting plate (10) is engaged with the inner wall of the slot (8). The heat-conducting plate (10) is disposed between the two sets of connectors (5).
4. A silicon-aluminum-magnesium heat exchanger according to claim 3, characterized in that: A first annular cavity (11) is provided between the inner wall of the heat exchange outer cylinder (1) and the outer surface of the heat-conducting plate (10). A clockwise spiral blade (12) is provided inside the first annular cavity (11). A second annular cavity (13) is provided inside the heat-conducting plate (10). A counterclockwise spiral blade (14) is provided inside the second annular cavity (13).
5. A silicon-aluminum-magnesium heat exchanger according to claim 4, characterized in that: One end of the clockwise spiral blade (12) is fixedly connected to the inner side of a set of connectors (5). The clockwise spiral blade (12) is in contact with the inner wall of the heat exchange outer cylinder (1) and the outer surface of the heat-conducting plate (10). One end of the counterclockwise spiral blade (14) is fixedly connected to the inner side of another set of connectors (5). The counterclockwise spiral blade (14) is in contact with the inner wall of the heat-conducting plate (10).
6. A silicon-aluminum-magnesium heat exchanger according to claim 4, characterized in that: The outer side of one end of the heat exchange outer cylinder (1) is fixedly connected to a first feed pipe (15), and the outer side of the other end of the heat exchange outer cylinder (1) is fixedly connected to a first discharge pipe (16). The first feed pipe (15) and the first discharge pipe (16) are in communication with the first annular cavity (11).
7. A silicon-aluminum-magnesium heat exchanger according to claim 6, characterized in that: A second feed pipe (17) is fixedly connected to the outside of one set of connectors (5), and the second feed pipe (17) is located near the first discharge pipe (16). A second discharge pipe (18) is fixedly connected to the outside of another set of connectors (5), and the second discharge pipe (18) is located near the first feed pipe (15). The second feed pipe (17) and the second discharge pipe (18) communicate with the second annular cavity (13).