A new type of anticorrosion coating gas water heater heat exchanger

By introducing a filtration system into the gas water heater, using filter screens, PP cotton, activated carbon filter cotton, and KDF filter cartridges to filter tap water and hot water, the problems of skin itching and shower head scale caused by tap water hardness are solved, improving the user experience.

CN224365096UActive Publication Date: 2026-06-16CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU SHIHAO ELECTRIC APPLIANCE CO LTD
Filing Date
2025-07-03
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

In some areas, tap water has high hardness, which can cause dry and itchy skin after being heated by a gas water heater, and limescale can easily form at the showerhead nozzles.

Method used

A preliminary filter tank and a hot water filter tank are introduced into the gas water heater. The preliminary filter tank is equipped with a filter screen, PP cotton and activated carbon filter cotton, and the hot water filter tank is equipped with a KDF filter element to filter impurities and residual chlorine in tap water and hot water.

Benefits of technology

It effectively removes impurities and residual chlorine from tap water, preventing itchy skin and limescale buildup in showerhead nozzles, thus enhancing the user experience.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224365096U_ABST
    Figure CN224365096U_ABST
Patent Text Reader

Abstract

The utility model relates to heat exchanger technical field, propose a kind of novel anticorrosive coating gas water heater heat exchanger, comprising: shell;The upper surface of the shell is equipped with smoke exhaust component, the bottom of the shell is fixedly connected with sealing component, the inside of the shell is equipped with hot water pipe;The outer surface of the hot water pipe is fixedly connected with multiple fins, one end of the fin is equipped with inlet pipe, one end of the hot water pipe is equipped with transfer pipe, one end of the transfer pipe is equipped with outlet pipe.The structure of the present application is reasonable, the external water pipeline is connected with metal hose, the external tap water enters the preliminary filter tank inside through the metal hose, then, the straight water is filtered and treated through filter screen, PP cotton and activated carbon filter cotton, in addition, the residual chlorine in hot water is filtered through KDF filter element in hot water filter tank, to avoid the problem that skin is dry and itchy after bathing and the spray hole of shower is prone to scale after long time use.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of heat exchanger technology, specifically to a novel anti-corrosion coated gas water heater heat exchanger. Background Technology

[0002] Gas water heaters are characterized by fast hot water output, good temperature stability, and high energy efficiency. They are increasingly popular among families in modern life. Gas water heaters mainly consist of three systems: water system, gas system, and electrical control system. The water system includes heat exchangers and inlet / outlet water connectors.

[0003] In some areas, tap water has high hardness. When gas water heaters heat tap water, users experience dry and itchy skin after showering due to the high hardness of the water. After prolonged use, scale easily forms on the spray nozzles of the showerhead. Therefore, a new type of anti-corrosion coated heat exchanger for gas water heaters is proposed. Utility Model Content

[0004] This utility model proposes a novel anti-corrosion coated heat exchanger for gas water heaters, which solves the problems in related technologies where tap water hardness is high in some areas, causing users to experience dry and itchy skin after showering due to the high hardness of the tap water, and the easy formation of limescale at the spray nozzles of the showerhead after prolonged use.

[0005] The technical solution of this utility model is as follows: A novel anti-corrosion coated gas water heater heat exchanger, comprising: a shell;

[0006] The upper surface of the outer casing is provided with a smoke exhaust component, the bottom of the outer casing is fixedly connected with a sealing component, and the interior of the outer casing is provided with a hot water pipe;

[0007] The outer surface of the hot water pipe is fixedly connected with multiple fins. One end of each fin is provided with a water inlet pipe, one end of the hot water pipe is provided with a transfer pipe, and one end of the transfer pipe is provided with a water outlet pipe.

[0008] The vertical section of the inlet pipe is equipped with a preliminary filter tank, and the vertical section of the outlet pipe is equipped with a hot water filter tank.

[0009] The inner wall of the primary filter tank is fixedly connected with a filter screen, PP cotton and activated carbon filter cotton, and the inner wall of the hot water filter tank is equipped with a KDF filter element.

[0010] Optionally, the smoke exhaust component includes a smoke exhaust pipe fixedly connected to the sealing cover plate, a smoke exhaust pipe fixedly connected to the center of the surface of the sealing cover plate, and a connector that matches the sealing cover plate.

[0011] Optionally, the connector includes a plurality of threaded grooves formed on the end face of the housing and bolts threadedly connected to the inner wall of the threaded grooves.

[0012] Optionally, the inner wall of the housing is fixedly connected with a sealing sheet that matches the smoke exhaust component, and the inner surface of the housing is fixedly connected with two symmetrically arranged guide vanes.

[0013] Optionally, the sealing component includes a groove fixedly connected to the sealing plate, a groove formed on one side of the sealing plate, and a sealing ring fixedly connected to the inner wall of the groove.

[0014] Optionally, a connecting piece is fixedly connected to one side of the sealing plate, and the surface of the connecting piece is provided with multiple connecting holes.

[0015] Optionally, the inner wall of the hot water filter tank is fixedly connected to a frame that matches the KDF filter element.

[0016] The working principle and beneficial effects of this utility model are as follows:

[0017] This application has a reasonable structure. The external tap water pipe is connected to a metal hose, which allows the external tap water to enter the preliminary filter tank. Then, the tap water is filtered through a filter screen, PP cotton, and activated carbon filter cotton. In addition, the KDF filter element in the hot water filter tank filters the residual chlorine in the hot water, avoiding the problems of dry and itchy skin after showering and the easy accumulation of limescale at the shower head nozzles after long-term use. Attached Figure Description

[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0019] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0020] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0021] Figure 3 This is a cross-sectional structural diagram of the outer shell in this utility model;

[0022] Figure 4 This is a schematic diagram of the preliminary filter tank in this utility model;

[0023] In the diagram: 1. Outer shell; 2. Sealing cover; 3. Outlet pipe; 4. Inlet pipe; 5. Preliminary filter tank; 6. Hot water filter tank; 7. Bolt; 8. Exhaust pipe; 9. Frame; 10. Sealing plate; 11. Connecting piece; 12. Slot; 13. Guide plate; 14. Fin; 15. Transfer pipe; 16. Hot water pipe; 17. Sealing plate; 18. Filter screen; 19. PP cotton; 20. Activated carbon filter cotton; 21. KDF filter element; 22. Sealing ring. Detailed Implementation

[0024] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0025] Example

[0026] Please see Figure 1 - Figure 4 The present invention provides a novel anti-corrosion coated gas water heater heat exchanger, comprising: a shell 1;

[0027] The upper surface of the outer casing 1 is provided with a smoke exhaust component, the bottom of the outer casing 1 is fixedly connected with a sealing component, and the inside of the outer casing 1 is provided with a hot water pipe 16;

[0028] Multiple fins 14 are fixedly connected to the outer surface of the hot water pipe 16. One end of the fin 14 is provided with a water inlet pipe 4, one end of the hot water pipe 16 is provided with a transfer pipe 15, and one end of the transfer pipe 15 is provided with a water outlet pipe 3.

[0029] The vertical section of the inlet pipe 4 is equipped with a preliminary filter tank 5, and the vertical section of the outlet pipe 3 is equipped with a hot water filter tank 6.

[0030] The inner wall of the primary filter tank 5 is fixedly connected with a filter screen 18, PP cotton 19 and activated carbon filter cotton 20, and the inner wall of the hot water filter tank 6 is provided with a KDF filter element 21.

[0031] Furthermore, the smoke exhaust component includes a smoke exhaust pipe 8 fixedly connected to the sealing cover plate 2, a smoke exhaust pipe 8 fixedly connected to the center of the surface of the sealing cover plate 2, and a connector that matches the sealing cover plate 2. The connector includes multiple threaded grooves opened on the end face of the outer casing 1 and bolts 7 threadedly connected to the inner wall of the threaded grooves.

[0032] Specifically, the sealing cover 2 is fixed by passing the bolt 7 through the reserved hole of the sealing cover 2 and threading it into the threaded groove on the end face of the outer shell 1.

[0033] Furthermore, a sealing plate 17 that matches the smoke exhaust component is fixedly connected to the inner wall of the outer casing 1, and two symmetrically arranged guide plates 13 are fixedly connected to the inner surface of the outer casing 1.

[0034] Specifically, the guide vane 13 guides the flue gas generated by combustion, and then the sealing plate 17 allows the flue gas to enter the interior of the exhaust pipe 8.

[0035] Furthermore, the sealing component includes a groove 12 fixedly connected to the sealing plate 10, a groove 12 formed on one side of the sealing plate 10, and a sealing ring 22 fixedly connected to the inner wall of the groove 12. A connecting piece 11 is fixedly connected to one side of the sealing plate 10, and a plurality of connecting holes are formed on the surface of the connecting piece 11.

[0036] Specifically, the sealing plate 10 and the outer shell 1 are fixed by passing screws through the connecting holes on the surface of the connecting piece 11.

[0037] Furthermore, the inner wall of the hot water filter tank 6 is fixedly connected to a frame 9 that matches the KDF filter element 21.

[0038] Specifically, the KDF filter element 21 is fixed by the frame 9.

[0039] The workflow for this application is as follows:

[0040] The water inlet pipe 4 is connected to the metal hose, and the external tap water pipe is connected to the metal hose. The external tap water enters the preliminary filter tank 5 through the metal hose. Then, the tap water is filtered through the filter screen 18, PP cotton 19 and activated carbon filter cotton 20. The treated tap water enters the hot water pipe 16 through the water inlet pipe 4. At the same time, the gas is used to heat multiple fins 14. The heat is conducted to the inside of the hot water pipe 16 through the roots of the multiple fins 14, thereby heating the hot water pipe 16.

[0041] After the tap water inside the hot water pipe 16 is heated, it rises into the transfer pipe 15. When hot water is used, the hot water enters the hot water filter tank 6 through the transfer pipe 15 and filters the residual chlorine in the hot water through the KDF filter element 21 in the hot water filter tank 6. The KDF filter element 21 has a temperature resistance of ≤110℃. It is connected to the outlet pipe 3 through a metal hose, and finally the hot water is discharged through the outlet pipe 3.

[0042] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A novel anti-corrosion coated heat exchanger for gas water heaters, characterized in that, include: Outer shell (1); The upper surface of the outer shell (1) is provided with a smoke exhaust component, the bottom of the outer shell (1) is fixedly connected with a sealing component, and the interior of the outer shell (1) is provided with a hot water pipe (16). The outer surface of the hot water pipe (16) is fixedly connected with multiple fins (14). One end of the fin (14) is provided with a water inlet pipe (4), one end of the hot water pipe (16) is provided with a transfer pipe (15), and one end of the transfer pipe (15) is provided with a water outlet pipe (3). The vertical section of the inlet pipe (4) is provided with a preliminary filter tank (5), and the vertical section of the outlet pipe (3) is provided with a hot water filter tank (6). The inner wall of the primary filter tank (5) is fixedly connected with a filter screen (18), PP cotton (19) and activated carbon filter cotton (20), and the inner wall of the hot water filter tank (6) is provided with a KDF filter element (21).

2. The novel anti-corrosion coated gas water heater heat exchanger according to claim 1, characterized in that: The smoke exhaust component includes a smoke exhaust pipe (8) fixedly connected to the sealing cover plate (2), a smoke exhaust pipe (8) fixedly connected to the center of the surface of the sealing cover plate (2), and a connector that matches the sealing cover plate (2).

3. The novel anti-corrosion coated gas water heater heat exchanger according to claim 2, characterized in that: The connector includes multiple threaded grooves formed on the end face of the housing (1) and bolts (7) threadedly connected to the inner wall of the threaded grooves.

4. The novel anti-corrosion coated gas water heater heat exchanger according to claim 1, characterized in that: The inner wall of the outer shell (1) is fixedly connected with a sealing plate (17) that matches the smoke exhaust component, and the inner surface of the outer shell (1) is fixedly connected with two symmetrically arranged guide plates (13).

5. A novel anti-corrosion coated gas water heater heat exchanger according to claim 1, characterized in that: The sealing component includes a groove (12) fixedly connected to the sealing plate (10), a groove (12) opened on one side of the sealing plate (10), and a sealing ring (22) fixedly connected to the inner wall of the groove (12).

6. A novel anti-corrosion coated gas water heater heat exchanger according to claim 5, characterized in that: A connecting piece (11) is fixedly connected to one side of the sealing plate (10), and the surface of the connecting piece (11) has multiple connecting holes.

7. A novel anti-corrosion coated gas water heater heat exchanger according to claim 1, characterized in that: The inner wall of the hot water filter tank (6) is fixedly connected to a frame (9) that matches the KDF filter element (21).