Energy-gathering low-temperature-rise stainless steel water tank
Through the design of 'Π'-shaped box shell assembly and heat exchange fins, the flue gas is gathered for heat exchange, which solves the problems of high production costs and ineffective heat utilization of existing stainless steel heat exchange tanks, and achieves more efficient heat exchange and Equipment protection.
Patent Information
- Application Number
- CN202420931154.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-30
- Publication Date
- 2024-12-20
- Estimated Expiration
- 2034-04-30
AI Technical Summary
During the production process, the existing stainless steel heat exchange water tanks have high costs and complex assembly due to the combination of multiple sheet metal parts, and the flue gas heat cannot be effectively utilized, resulting in an increase in the box shell temperature and affecting the equipment life.
The box shell assembly and heat exchange fin design are adopted in the shape of the ‘Π’. The first partition flange is used to form a coherent wall structure, gather the flue gas for heat exchange, reduce heat transfer to the box shell wall and reduce temperature rise.
It effectively reduces the number of parts and assembly complexity, reduces production costs, improves heat exchange efficiency, protects other components in the water heater, and extends the equipment life.
Smart Images
Figure CN222210788U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of water heater accessories, in particular to an energy-gathering low-temperature-rise stainless steel water tank. Background Art
[0002] The existing gas water heater water exchanger tank is generally made of copper material. Cold water passes through the heat exchange copper tube, enters the heat exchange tube inside the heat exchanger through the coil outside the heat exchanger for heat exchange, and the heated water is discharged from the heat exchange tube to the outlet pipe. During the process, the water tank, heat exchange tube and other equipment have the opportunity to produce condensed water. Carbon dioxide dissolves and ionizes in the condensed water, making the condensed water acidic and corrosive. Long-term use will cause corrosion and damage to the equipment, reducing the service life of the product. Therefore, a stainless steel water exchanger tank with strong corrosion resistance has been launched on the market; for example, a stainless steel heat exchanger for a household gas water heater disclosed in patent number CN202120536021.0.
[0003] However, the existing stainless steel water exchanger tanks usually use a combination of multiple sheet metal parts with different shapes to form a tank shell assembly, which requires the production of multiple sheet metal molds, with many types of materials to prepare, and it is difficult to reduce production costs; and the heat exchanger plate adopts a flat sheet structure aligned with the inner wall of the tank shell, which does not rationally optimize the flue gas energy gathering effect. At the same time, the heat of the flue gas is easily transferred to the wall of the tank shell, and the heat of the flue gas is not reasonably utilized. In addition, the temperature rise of the tank shell is high, which poses a risk of affecting other components in the water heater tank. Therefore, further improvements are needed. Utility Model Content
[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes an energy-gathering low-temperature-rise stainless steel water tank.
[0005] The technical solution adopted by an embodiment of the utility model to solve the technical problem is: an energy-gathering low-temperature rise stainless steel water tank, comprising: a tank shell assembly, heat exchange fins, heat exchange tubes and a port conversion head;
[0006] The box shell assembly includes a first box shell and a second box shell in a "Π" shape; the first box shell and the second box shell can be relatively assembled and enclosed to form a heat exchange cavity; a plurality of the heat exchange fins are arranged side by side to form a heat exchange fin group, which is located in the heat exchange cavity; a plurality of the heat exchange tubes are passed through the heat exchange fin group, and the ends of two adjacent heat exchange tubes are connected through the port conversion head;
[0007] The heat exchange fin includes a main base plate, a heat exchange port and a first partition flange; the heat exchange tube is inserted into the heat exchange port; two first partition flanges are provided, and the flanges are formed at opposite ends of the main base plate; the upper parts of the two first partition flanges extend inwardly and form a trapezoidal structure; the first partition flange can fit the first partition flange of another heat exchange fin and form a first partition wall structure connected along the heat exchange tube; the two first partition wall structures on opposite sides can gather the rising flue gas of the heat exchange cavity toward the middle.
[0008] Optionally, a plurality of the heat exchange ports are staggered in two rows, and the number of the heat exchange ports in the lower row is greater than the number of the heat exchange ports in the upper row; the heat exchange ports in the lower row are arranged near the middle of the first dividing flange, and the heat exchange ports in the upper row are arranged near the top of the first dividing flange.
[0009] Optionally, a first welding process hole is provided below the heat exchange ports in the lower row; a second welding process groove is provided between two adjacent heat exchange ports in the lower row, and the second welding process groove extends toward the bottom of the heat exchange ports in the upper row.
[0010] Optionally, the main substrate is provided with a flow-blocking protrusion by pressing, and the flow-blocking protrusion is arranged between two adjacent heat exchange ports in the upper row.
[0011] Optionally, the inner edge of the heat exchange port is turned toward one side to form a heat exchange extension turndown, and the heat exchange extension turndown can abut against the main substrate of another heat exchange fin.
[0012] Optionally, second partition flanges are further provided on opposite sides above the main substrate; the lower end of the second partition flange is close to the upper end of the first partition flange, and the upper end is inclined and extends outward; the second partition flange can be fitted with the second partition flange of another heat exchange fin, and form a second partition wall structure connected along the heat exchange tube; the first partition wall structure, the second partition wall structure and the shell wall of the first box shell or the second box shell are arranged to form an insulating cavity.
[0013] Optionally, the first partition flange and the second partition flange are welded to the shell wall of the first box shell or the second box shell.
[0014] Optionally, the port conversion head comprises a conversion head inner shell and a conversion head outer shell which are separately arranged; the conversion head inner shell is welded to the port of the heat exchange port, and the conversion head outer shell is welded to the conversion head inner shell.
[0015] Optionally, the conversion head inner shell and the conversion head outer shell are provided with matching conversion lap ring edge structures.
[0016] Optionally, mutually matching overlapping step structures are provided at opposite ends of the first box shell and the second box shell.
[0017] The beneficial effects of the utility model are as follows: the box shell assembly can form a heat exchange chamber by relatively assembling the first box shell and the second box shell in a "Π" shape, which effectively reduces the number of parts, simplifies the assembly process, and effectively reduces the production cost. In addition, the first partition flange can fit the first partition flange of another heat exchange fin, and form a first partition wall structure that is continuous along the heat exchange tube; the first partition wall structure can, on the one hand, gather the rising flue gas toward the middle, so as to effectively gather the flue gas at the heat exchange tube and the heat exchange fin in the middle for heat exchange, thereby improving the heat exchange efficiency; on the other hand, it can block the flue gas from flowing toward the shell wall of the box shell assembly, avoid heat transfer toward the shell wall of the box shell assembly, reduce the dissipation of flue gas heat, and effectively reduce the temperature rise change of the box shell, thereby effectively protecting other components in the water heater box.
[0018] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0020] Figure 1 This is a structural schematic diagram of the stainless steel water tank of the utility model;
[0021] Figure 2 for Figure 1 Exploded diagram of the stainless steel water tank;
[0022] Figure 3 for Figure 1 Cross-sectional view of the stainless steel water tank;
[0023] Figure 4 for Figure 1 Schematic diagram of the structure of the heat exchange fins.
[0024] Description of main component symbols:
[0025] 10. Box shell assembly; 11. First box shell; 12. Second box shell; 13. Heat exchange cavity; 20. Heat exchange fins; 21. Main base plate; 22. Heat exchange port; 23. First partition flange; 24. First welding process hole; 25. Second welding process groove; 26. Flow blocking protrusion; 27. Heat exchange extension flange; 28. Second partition flange; 30. Heat exchange tube; 40. Port conversion head; 41. Conversion head inner shell; 42. Conversion head outer shell; 50. Insulation cavity. DETAILED DESCRIPTION
[0026] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.
[0027] In the description of the present utility model, the meaning of "more than" is more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.
[0028] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.
[0029] In the present invention, unless otherwise clearly defined, the words "set", "install", "connect" and the like should be understood in a broad sense, for example, they can be directly connected or indirectly connected through an intermediate medium; they can be fixedly connected or detachably connected or integrally formed; they can be mechanically connected; they can be the internal connection of two elements or the interaction relationship between two elements. Those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.
[0030] Example
[0031] Reference Figures 1 to 4 The utility model proposes a low-temperature-rise stainless steel water tank with concentrated energy, comprising: a tank shell assembly 10, a heat exchange fin 20, a heat exchange tube 30 and a port conversion head 40;
[0032] The housing assembly 10 includes a first housing 11 and a second housing 12 in a "Π" shape; the first housing 11 and the second housing 12 can be relatively assembled and enclosed to form a heat exchange cavity 13; a plurality of heat exchange fins 20 are arranged side by side to form a heat exchange fin group, which is located in the heat exchange cavity 13; a plurality of heat exchange tubes 30 are passed through the heat exchange fin group, and the ends of two adjacent heat exchange tubes 30 are connected through a port conversion head 40;
[0033] The heat exchange fin 20 includes a main substrate 21, a heat exchange port 22 and a first partition flange 23; the heat exchange tube 30 is inserted into the heat exchange port 22; two first partition flanges 23 are provided, and the flanges are formed at opposite ends of the main substrate 21; the upper parts of the two first partition flanges 23 extend inwardly and form a trapezoidal structure; the first partition flange 23 can fit the first partition flange 23 of another heat exchange fin 20, and form a first partition wall structure that is continuous along the heat exchange tube 30; the two first partition wall structures on opposite sides can gather the rising flue gas of the heat exchange cavity 13 toward the middle.
[0034] In the utility model, the box shell assembly 10 can form a heat exchange chamber 13 by relatively assembling the first box shell 11 and the second box shell 12 in a "Π" shape, which effectively reduces the number of parts, simplifies the assembly process, and effectively reduces the production cost. In addition, the first partition flange 23 can fit the first partition flange 23 of another heat exchange fin 20, and form a first partition wall structure that is continuous along the heat exchange tube 30; the first partition wall structure, on the one hand, can gather the rising flue gas toward the middle, so as to effectively gather the flue gas at the heat exchange tube 30 and the heat exchange fin in the middle for heat exchange, thereby improving the heat exchange efficiency; on the other hand, it can block the flue gas from flowing toward the shell wall of the box shell assembly 10, avoid heat transfer toward the shell wall of the box shell assembly 10, reduce the heat dissipation of the flue gas, and effectively reduce the temperature rise change of the box shell, thereby effectively protecting other components in the water heater box.
[0035] In this embodiment, in order to match the smoke trapping effect of the first partition wall structure of the shrinking tower type, the heat exchange tube 30 can effectively exchange heat with the gathered rising smoke; a plurality of heat exchange ports 22 are arranged in two rows in an upper and lower staggered manner, and the number of heat exchange ports 22 in the lower row exceeds the number of heat exchange ports 22 in the upper row; the heat exchange ports 22 in the lower row are arranged near the middle of the first partition flange 23, and the heat exchange ports 22 in the upper row are arranged near the top of the first partition flange 23.
[0036] In this embodiment, in order to facilitate the welding and fixing of the heat exchange fin group and the heat exchange tube 30, a first welding process hole 24 is provided below the lower row of heat exchange ports 22; a second welding process groove 25 is provided between two adjacent heat exchange ports 22 in the lower row, and the second welding process groove 25 extends toward the bottom of the upper row of heat exchange ports 22. The first welding process hole 24 and the second welding process groove 25 are used to prevent the welding rod from spreading to the contact area between the heat exchange port 22 and the heat exchange tube 30 through hot melting welding liquid.
[0037] In this embodiment, the main substrate 21 is provided with a flow blocking protrusion 26 by pressing, and the flow blocking protrusion 26 is arranged between two adjacent heat exchange ports 22 in the upper row. The flow blocking protrusion 26 can divert the flue gas rising between the upper row of heat exchange ports 22 to both sides again and release the upper area of the upper row of heat exchange tubes 30, thereby improving the contact heat exchange effect between the flue gas and the heat exchange tubes 30.
[0038] Specifically, the inner edge of the heat exchange port 22 is turned toward one side to form a heat exchange extension turndown 27 , and the heat exchange extension turndown 27 can abut against the main substrate 21 of another heat exchange fin 20 .
[0039] In this embodiment, second partition flanges 28 are further provided on opposite sides above the main substrate 21; the lower end of the second partition flange 28 is close to the upper end of the first partition flange 23, and the upper end is inclined and extended outward; the second partition flange 28 can fit the second partition flange 28 of another heat exchange fin 20, and form a second partition wall structure that is continuous along the heat exchange tube 30; the first partition wall structure, the second partition wall structure and the shell wall of the first box shell 11 or the second box shell 12 are surrounded to form a heat insulation cavity 50. The heat insulation cavity 50 forms an air insulation layer, which can effectively prevent the heat of the flue gas from being transferred to the shell wall of the box shell assembly 10, thereby reducing the temperature rise of the shell wall of the box shell assembly 10.
[0040] Specifically, the first partition flange 23 and the second partition flange 28 are welded to the shell wall of the first box shell 11 or the second box shell 12 .
[0041] In this embodiment, the port conversion head 40 includes a conversion head inner shell 41 and a conversion head outer shell 42 which are separately arranged; the conversion head inner shell 41 is welded to the port of the heat exchange port 22, and the conversion head outer shell 42 is welded to the conversion head inner shell 41. The conversion head inner shell 41 and the conversion head outer shell 42 which are separately arranged are convenient for stamping and are sleeved on the port of the heat exchange tube 30 to achieve a fixed connection by welding.
[0042] Specifically, in order to facilitate the welding connection between the conversion head inner shell 41 and the conversion head outer shell 42, the conversion head inner shell 41 and the conversion head outer shell 42 are provided with matching conversion overlap ring edge structures.
[0043] In this embodiment, in order to facilitate alignment of the first box shell 11 and the second box shell 12 and to perform welding and fixing, the first box shell 11 and the second box shell 12 are provided with overlapping step structures that cooperate with each other at opposite ends.
[0044] Of course, the present invention is not limited to the above-mentioned embodiments, and technicians familiar with the field may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.
Claims
1. A low-temperature stainless steel water tank, characterized in that: include: A casing assembly (10), a heat exchange fin (20), a heat exchange tube (30) and a port conversion head (40); The box shell assembly (10) comprises a first box shell (11) and a second box shell (12) in a "Π" shape; the first box shell (11) and the second box shell (12) can be relatively assembled and enclosed to form a heat exchange cavity (13); a plurality of the heat exchange fins (20) are arranged side by side to form a heat exchange fin group, which is located in the heat exchange cavity (13); a plurality of the heat exchange tubes (30) are inserted through the heat exchange fin group, and the ends of two adjacent heat exchange tubes (30) are connected through the port conversion head (40); The heat exchange fin (20) comprises a main base plate (21), a heat exchange port (22) and a first partition flange (23); the heat exchange tube (30) is inserted through the heat exchange port (22); two first partition flanges (23) are provided, and the flanges are formed at two opposite ends of the main base plate (21); the upper sides of the two first partition flanges (23) extend inwardly and form a trapezoidal structure; the first partition flange (23) can be attached to the first partition flange (23) of another heat exchange fin (20) to form a first partition wall structure that is continuous along the heat exchange tube (30); the two first partition wall structures on opposite sides can gather the rising smoke of the heat exchange cavity (13) toward the middle.
2. The energy-gathering low-temperature-rise stainless steel water tank according to claim 1 is characterized by: The plurality of heat exchange ports (22) are arranged in two rows in an upper and lower staggered manner, and the number of the heat exchange ports (22) in the lower row is greater than the number of the heat exchange ports (22) in the upper row; the heat exchange ports (22) in the lower row are arranged near the middle of the first partition flange (23), and the heat exchange ports (22) in the upper row are arranged near the top of the first partition flange (23).
3. The energy-gathering low-temperature-rise stainless steel water tank according to claim 2 is characterized in that: A first welding process hole (24) is provided below the heat exchange ports (22) in the lower row; a second welding process groove (25) is provided between two adjacent heat exchange ports (22) in the lower row, and the second welding process groove (25) extends toward the bottom of the heat exchange ports (22) in the upper row.
4. The energy-gathering low-temperature-rise stainless steel water tank according to claim 2 is characterized in that: The main substrate (21) is provided with a flow-blocking protrusion (26) by pressing, and the flow-blocking protrusion (26) is arranged between two adjacent heat exchange ports (22) in the upper row.
5. The energy-gathering low-temperature-rise stainless steel water tank according to claim 2 is characterized in that: The inner edge of the heat exchange port (22) is turned toward one side to form a heat exchange extension turndown (27), and the heat exchange extension turndown (27) can abut against the main base plate (21) of another heat exchange fin (20).
6. The energy-gathering low-temperature-rise stainless steel water tank according to claim 1, characterized in that: Second partition flanges (28) are also provided on opposite sides above the main substrate (21); the lower end of the second partition flange (28) is close to the upper end of the first partition flange (23), and the upper end is inclined and extends outward; the second partition flange (28) can fit the second partition flange (28) of another heat exchange fin (20) to form a second partition wall structure that is continuous along the heat exchange tube (30); the first partition wall structure, the second partition wall structure and the shell wall of the first box shell (11) or the second box shell (12) are arranged to form an insulation cavity (50).
7. The energy-gathering low-temperature-rise stainless steel water tank according to claim 6 is characterized by: The first partition flange (23) and the second partition flange (28) are welded to the shell wall of the first box shell (11) or the second box shell (12).
8. The energy-gathering low-temperature-rise stainless steel water tank according to claim 1 is characterized by: The port conversion head (40) comprises a conversion head inner shell (41) and a conversion head outer shell (42) which are separately arranged; the conversion head inner shell (41) is welded to the port of the heat exchange port (22), and the conversion head outer shell (42) is welded to the conversion head inner shell (41).
9. The energy-gathering low-temperature-rise stainless steel water tank according to claim 8, characterized in that: The conversion head inner shell (41) and the conversion head outer shell (42) are provided with matching conversion overlap ring edge structures.
10. The energy-gathering low-temperature-rise stainless steel water tank according to claim 1, characterized in that: The opposite ends of the first box shell (11) and the second box shell (12) are provided with overlapping step structures that match each other.