A hot water unit coil arrangement which is easy to maintain
By introducing structures such as insulation boxes, return pipes, and insulation pipes into the hot water heater coil unit, the problem of energy waste caused by the natural cooling of hot water is solved, and efficient circulation and convenient maintenance of hot water are achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HAOYANG NEW ENERGY CO LTD
- Filing Date
- 2025-08-06
- Publication Date
- 2026-06-23
AI Technical Summary
Existing easy-to-maintain hot water heater coil devices cause hot water to remain in the pipes and cool down naturally, resulting in energy waste.
A device comprising an insulation box, a water storage tank, a return pipe, a heater, and an insulation pipe is designed. The insulation box reduces heat exchange efficiency, the return pipe draws cold water back to the heater for reheating, the insulation pipe assists in keeping hot water warm, and an inlet pipe, a drain pipe, and a check valve are provided to ensure stable operation of the circulation system.
It reduces energy waste, improves water comfort, ensures the continuity and stability of hot water supply, and the device is easy to maintain and replace.
Smart Images
Figure CN224398022U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of circulating water heaters, and in particular relates to a water heater coil device that is easy to maintain. Background Technology
[0002] A circulating water heater is a device that provides hot water instantly through circulating heating. Its core principle is to use a circulating pump to draw cold water from the pipes back to the water heater for reheating, thus avoiding waste of cold water and improving the comfort of using water. Existing water heater coil devices, which are easy to maintain, leave hot water in the pipes and allow it to cool down naturally, resulting in energy waste. Utility Model Content
[0003] This invention provides a water heater coil device that is easy to maintain, aiming to solve the problem mentioned in the background art where the hot water in the existing easy-to-maintain water heater coil devices cools down naturally in the pipes, resulting in energy waste.
[0004] To solve the above problems, this utility model is implemented as follows: a water heater coil device that is easy to maintain, comprising: a base; an insulation box fixed on the top of the base to reduce heat exchange efficiency; a water storage tank disposed in the insulation box for storing hot water; a return pipe installed on the water storage tank for outputting cold water; a heater fixed on the base for heating cold water, the heater being connected to the return pipe; and an insulation pipe detachably installed on the return pipe and wrapped around the outside of the water storage tank for auxiliary hot water insulation, the insulation pipe being located inside the insulation box.
[0005] Preferably, the heater is provided with an inlet pipe for providing a replenishment channel, a drain pipe is provided between the heater and the water storage tank, a one-way valve is provided on the return pipe, a valve for adjusting the opening and closing of the replenishment channel is provided on the inlet pipe, and a guide pipe for outputting hot water is provided on the top of the water storage tank.
[0006] Preferably, the return pipe is equipped with a first hot water pump for drawing low-temperature water, the liquid guide pipe is equipped with a second hot water pump for drawing out hot water, the top of the water storage tank is equipped with an exhaust pipe for discharging water vapor, and the exhaust pipe is equipped with a pressure relief valve.
[0007] Preferably, the insulation box has an opening on one side for providing a maintenance and operation passage, and a protective door for closing the opening is installed on the insulation box by fixing bolts. The protective door is provided with a clamping plate for clamping and stabilizing the exhaust pipe.
[0008] Preferably, the return pipes are arranged in groups and installed on the water storage tank and the heater respectively. The heat insulation pipe is located between the two return pipes. A threaded cylinder is rotatably installed on each of the two return pipes. A threaded block is threadedly installed inside each of the two threaded cylinders. The two threaded blocks are respectively connected to the two ends of the heat insulation pipe.
[0009] Preferably, a sealing ring is installed on the inner wall of the threaded cylinder to prevent leakage and contacts the threaded block; the outer wall of the threaded cylinder is provided with anti-slip texture to increase grip friction; and a connecting plate is provided between the water storage tank and the insulation box to stabilize the water storage tank.
[0010] Preferably, the water storage tank is provided with a cleaning port, and a connecting piece is detachably installed on the outer wall of the water storage tank. A baffle for sealing the cleaning port is fixed on the connecting piece, and a silicone pad for preventing leakage is provided on the side of the baffle near the water storage tank.
[0011] Preferably, both the first hot water pump and the second hot water pump are fitted with a protective shell for collision prevention, and the protective shell is fitted with a shock-absorbing sleeve. The protective shell has heat dissipation holes, and the shock-absorbing sleeve is mesh. Both the water storage tank and the heater are equipped with temperature sensors for detecting water temperature.
[0012] Compared with related technologies, the easy-to-maintain hot water heater coil device provided by this utility model has the following beneficial effects:
[0013] Compared with existing technologies, the water heater coil device provided by this solution reduces heat exchange efficiency by setting up an insulation box, slowing down heat loss and reducing energy waste. It also uses a return pipe to draw cold water back to the heater for reheating, avoiding waste and improving water comfort. The insulation pipe assists in hot water insulation, reducing energy consumption and is removable for easy maintenance and replacement. The liquid inlet pipe provides a liquid replenishment channel to ensure a continuous hot water supply. The drain pipe allows heated liquid to enter the storage tank for storage. The one-way valve prevents liquid backflow and ensures stable operation of the circulation system. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the main sectional view of a water heater coil device that is easy to maintain, provided by this utility model.
[0015] Figure 2 This is a rear view structural diagram of a water heater coil device that is easy to maintain, provided by this utility model;
[0016] Figure 3 This is a schematic diagram of the assembly structure of the threaded connector in this utility model;
[0017] Figure 4This is a schematic diagram of the main structure of the water storage tank in this utility model.
[0018] Reference numerals: 1. Base; 2. Insulation box; 3. Water storage tank; 4. Heater; 5. Inlet pipe; 6. Drain pipe; 7. Return pipe; 8. Insulation pipe; 9. Check valve; 10. First hot water pump; 11. Second hot water pump; 12. Exhaust pipe; 13. Pressure relief valve; 14. Opening; 15. Fixing bolt; 16. Protective door; 17. Clamping plate; 18. Threaded cylinder; 19. Threaded block; 20. Connecting piece; 21. Baffle. Detailed Implementation
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] This utility model embodiment provides a water heater coil device that is easy to maintain, such as... Figure 1-4 As shown, the easy-to-maintain hot water heater coil assembly includes: a base 1; an insulation box 2 fixed to the top of the base 1 to reduce heat exchange efficiency; a water storage tank 3 disposed inside the insulation box 2 for storing hot water; a return pipe 7 installed on the water storage tank 3 for outputting cold water; a heater 4 fixed to the base 1 for heating cold water, the heater 4 being connected to the return pipe 7; and an insulation pipe 8 detachably installed on the return pipe 7 and wrapped around the water storage tank 3 for auxiliary hot water insulation, the insulation pipe 8 being located inside the insulation box 2.
[0022] In this embodiment, the insulation box 2 reduces heat exchange efficiency, slows down the heat loss rate of hot water in the storage tank 3, and reduces energy waste. The return pipe 7 allows cold water in the pipe to be pumped back to the heater 4 for reheating, avoiding waste of cold water and improving water comfort. The insulation pipe 8, wrapped around the storage tank 3, further assists in hot water insulation, reducing energy loss caused by the natural cooling of hot water in the pipe. At the same time, the insulation pipe 8 can be detachably installed on the return pipe 7, facilitating maintenance and replacement of the insulation pipe 8, and improving the convenience and flexibility of equipment use.
[0023] In a further preferred embodiment of this utility model, the heater 4 is provided with an inlet pipe 5 for providing a replenishment channel, a drain pipe 6 is provided between the heater 4 and the water storage tank 3, a one-way valve 9 is provided on the return pipe 7, a valve for adjusting the opening and closing of the replenishment channel is provided on the inlet pipe 5, and a guide pipe for outputting hot water is provided on the top of the water storage tank 3.
[0024] In this embodiment, by setting a heater 4 with an inlet pipe 5 (taking JKG-10 as an example), the effect of providing a liquid replenishment channel is achieved, which can replenish the system with liquid in a timely manner and ensure the continuity of hot water supply. By setting a drain pipe 6 between the heater 4 and the water storage tank 3, the heated liquid can smoothly enter the water storage tank 3 for storage. A one-way valve 9 is set on the return pipe 7 to prevent liquid backflow and ensure the stable operation of the circulation system. By setting a valve on the inlet pipe 5 to adjust the opening and closing of the liquid replenishment channel, the liquid replenishment operation is easy to control. By setting a guide pipe on the top of the water storage tank 3, the stored hot water can be smoothly output for use.
[0025] In a further preferred embodiment of the present invention, the return pipe 7 is provided with a first hot water pump 10 for drawing low-temperature water, the liquid guide pipe is provided with a second hot water pump 11 for drawing and outputting hot water, the top of the water storage tank 3 is provided with an exhaust pipe 12 for discharging water vapor, and the exhaust pipe 12 is provided with a pressure relief valve 13.
[0026] In this embodiment, by installing a first hot water pump 10 (the first hot water pump 10 and the second hot water pump 11 are of the same model, both taking the 200QJH type hot water pump as an example) on the return pipe 7, the purpose of effectively extracting low-temperature water is achieved. It can quickly draw the low-temperature cold water in the pipe back for reheating, avoid waste of cold water, and improve the instant hot water effect. By installing a second hot water pump 11 on the liquid guide pipe, the hot water in the storage tank 3 can be powerfully extracted and stably output, ensuring the smooth supply of hot water. By installing an exhaust pipe 12 on the top of the storage tank 3, it plays the role of venting water vapor and preventing excessive pressure in the tank. A pressure relief valve 13 is installed on the exhaust pipe 12 so that when the pressure in the tank exceeds the safe value, it can automatically release pressure to avoid danger and improve the safety and stability of the circulating hot water machine operation.
[0027] In a further preferred embodiment of the present invention, an opening 14 for providing a maintenance operation channel is provided on one side of the heat preservation box 2, and a protective door 16 for closing the opening 14 is installed on the heat preservation box 2 by fixing bolts 15, and a clamping plate 17 for clamping and stabilizing the exhaust pipe 12 is provided on the protective door 16.
[0028] In this embodiment, by providing an opening 14 on one side of the insulation box 2, a maintenance operation channel is provided, which facilitates the staff to inspect and maintain the water storage tank 3, insulation pipe 8 and other components inside the insulation box 2, thereby improving the convenience of equipment maintenance. The protective door 16 is installed on the insulation box 2 by fixing bolts 15, which seals the opening 14 and effectively prevents heat loss, maintains the temperature inside the insulation box 2, and reduces energy waste. At the same time, the fixing bolts 15 facilitate the disassembly and installation of the protective door 16. The protective door 16 is equipped with a clamping plate 17, which allows the exhaust pipe 12 to be stably clamped, preventing the exhaust pipe 12 from shaking or shifting, and ensuring the normal operation of the exhaust pipe 12.
[0029] In a further preferred embodiment of this utility model, the return pipes 7 are arranged in groups and respectively installed on the water storage tank 3 and the heater 4. The heat insulation pipe 8 is located between the two return pipes 7. A threaded cylinder 18 is rotatably installed on each of the two return pipes 7. A threaded block 19 is threadedly installed inside each of the two threaded cylinders 18. The two threaded blocks 19 are respectively connected to both ends of the heat insulation pipe 8.
[0030] In this embodiment, by grouping the return pipes 7 and installing them on the water storage tank 3 and the heater 4 respectively, an efficient circulation loop is constructed, which can draw low-temperature cold water back for heating more quickly and improve the hot water supply efficiency. The insulation pipe 8 is located between the two return pipes 7, which plays a role in making full use of space to assist in heat preservation and reduce heat loss. The threaded cylinder 18 is rotatably installed on the two return pipes 7, and the threaded cylinder 18 is threaded with a threaded block 19. The threaded block 19 is connected to both ends of the insulation pipe 8, so that the position or tightness of the insulation pipe 8 can be easily adjusted by rotating the threaded cylinder 18, which facilitates the installation, disassembly and maintenance of the insulation pipe 8.
[0031] In a further preferred embodiment of the present invention, a sealing ring is installed on the inner wall of the threaded cylinder 18 to prevent leakage and to contact the threaded block 19; an anti-slip texture is provided on the outer wall of the threaded cylinder 18 to increase grip friction; and a connecting plate is provided between the water storage tank 3 and the insulation box 2 to stabilize the water storage tank 3.
[0032] In this embodiment, by installing a sealing ring on the inner wall of the threaded cylinder 18 that contacts the threaded block 19, an effective leak-proof effect is achieved. This prevents liquid in the return pipe 7 from leaking from the threaded connection, avoiding resource waste and potential safety hazards. The outer wall of the threaded cylinder 18 is provided with anti-slip texture, which increases the grip friction and makes it easier for workers to rotate the threaded cylinder 18 to adjust the insulation pipe 8, making operation more labor-saving. By setting a connecting plate between the water storage tank 3 and the insulation box 2, the water storage tank 3 can be stably fixed, reducing the shaking caused by equipment operation and lowering the risk of component damage.
[0033] In a further preferred embodiment of the present invention, the water storage tank 3 is provided with a cleaning port, and a connecting piece 20 is detachably installed on the outer wall of the water storage tank 3. A baffle 21 for sealing the cleaning port is fixed on the connecting piece 20, and a silicone pad for preventing leakage is provided on the side of the baffle 21 near the water storage tank 3.
[0034] In this embodiment, by providing a cleaning port on the water storage tank 3, the internal cleaning and maintenance of the water storage tank 3 can be conveniently achieved. Scale and impurities inside the tank can be cleaned regularly, ensuring the quality of hot water and extending the service life of the equipment. A detachable connecting piece 20 is installed on the outer wall of the water storage tank 3, and the connecting piece 20 is used to fix the baffle 21 to close the cleaning port. This allows the cleaning port to be opened when cleaning is needed and to be quickly closed after cleaning. By providing a silicone pad on the side of the baffle 21 near the water storage tank 3, a good leak-proof effect is achieved, effectively preventing hot water in the water storage tank 3 from leaking from the gap between the cleaning port and the baffle 21, avoiding resource waste and potential safety hazards.
[0035] In a further preferred embodiment of this utility model, both the first hot water pump 10 and the second hot water pump 11 are fitted with protective shells for collision prevention, and the protective shells are fitted with shock-absorbing sleeves. The protective shells are provided with heat dissipation holes, and the shock-absorbing sleeves are mesh-like. Both the water storage tank 3 and the heater 4 are provided with temperature sensors for detecting water temperature.
[0036] In this embodiment, by covering the first hot water pump 10 and the second hot water pump 11 with a protective shell, the effect of collision prevention is achieved, which can prevent the hot water pump from being damaged by external impact during equipment operation or transportation, and extend its service life. By setting heat dissipation holes on the protective shell, the heat generated by the hot water pump during operation can be dissipated in time, preventing performance from being affected by overheating. Temperature sensors (taking PT100 as an example) are set in the water storage tank 3 and the heater 4, which can detect the water temperature in real time, so that the system can control the heating process according to the water temperature, ensure the stability of the hot water temperature, and improve the user's water use experience.
[0037] In summary, compared with related technologies, this device reduces heat exchange efficiency by setting up an insulation box 2, slows down heat loss, and reduces energy waste. It also avoids waste and improves water comfort by setting up a return pipe 7 to draw cold water back to the heater 4 for reheating. Furthermore, it reduces energy consumption by setting up an insulation pipe 8 to assist in hot water insulation and is detachable for easy maintenance and replacement. It provides a liquid replenishment channel by setting up an inlet pipe 5 to ensure a continuous hot water supply. It allows heated liquid to enter the storage tank 3 for storage by setting up a drain pipe 6. Finally, it prevents liquid backflow by setting up a one-way valve 9 to ensure stable operation of the circulation system.
[0038] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0039] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A water heater coil device that is easy to maintain, characterized in that, include: Base (1); An insulated box (2) fixed to the top of the base (1) to reduce heat exchange efficiency; A water storage tank (3) is installed inside the insulation box (2) for storing hot water; A return pipe (7) for outputting cold water is installed on the water storage tank (3); A heater (4) for heating cold water is fixed on the base (1), and the heater (4) is connected to the return pipe (7); A heat preservation pipe (8) is detachably installed on the return pipe (7) and wrapped around the water storage tank (3) for auxiliary hot water heat preservation. The heat preservation pipe (8) is located inside the heat preservation box (2).
2. The easy-to-maintain hot water heater coil device as described in claim 1, characterized in that, The heater (4) is provided with an inlet pipe (5) for providing a replenishment channel. A drain pipe (6) is provided between the heater (4) and the water storage tank (3). A one-way valve (9) is provided on the return pipe (7). A valve for adjusting the opening and closing of the replenishment channel is provided on the inlet pipe (5). A guide pipe for outputting hot water is provided on the top of the water storage tank (3).
3. The easy-to-maintain hot water heater coil device as described in claim 2, characterized in that, The return pipe (7) is equipped with a first hot water pump (10) for drawing low-temperature water, the liquid guide pipe is equipped with a second hot water pump (11) for drawing out hot water, the top of the water storage tank (3) is equipped with an exhaust pipe (12) for discharging water vapor, and the exhaust pipe (12) is equipped with a pressure relief valve (13).
4. The easy-to-maintain hot water heater coil device as described in claim 3, characterized in that, The insulation box (2) has an opening (14) on one side for providing a maintenance operation channel. A protective door (16) for closing the opening (14) is installed on the insulation box (2) by fixing bolts (15). The protective door (16) is provided with a clamping plate (17) for clamping and stabilizing the exhaust pipe (12).
5. The easy-to-maintain hot water heater coil device as described in claim 1, characterized in that, The return pipes (7) are arranged in groups and installed on the water storage tank (3) and the heater (4) respectively. The heat insulation pipe (8) is located between the two return pipes (7). Threaded cylinders (18) are rotatably installed on both return pipes (7). Threaded blocks (19) are threadedly installed inside both threaded cylinders (18). The two threaded blocks (19) are respectively connected to both ends of the heat insulation pipe (8).
6. The easy-to-maintain hot water heater coil device as described in claim 5, characterized in that, The inner wall of the threaded cylinder (18) is equipped with a sealing ring that contacts the threaded block (19) to prevent leakage. The outer wall of the threaded cylinder (18) is provided with anti-slip texture to increase grip friction. A connecting plate is provided between the water storage tank (3) and the heat preservation box (2) to stabilize the water storage tank (3).
7. The easy-to-maintain hot water heater coil device as described in claim 1, characterized in that, The water tank (3) is provided with a cleaning port. A connecting piece (20) is detachably installed on the outer wall of the water tank (3). A baffle (21) for sealing the cleaning port is fixed on the connecting piece (20). A silicone pad for preventing leakage is provided on the side of the baffle (21) near the water tank (3).
8. The easy-to-maintain hot water heater coil device as described in claim 3, characterized in that, Both the first hot water pump (10) and the second hot water pump (11) are fitted with protective shells for collision prevention. The protective shells are fitted with shock-absorbing sleeves, and the protective shells are provided with heat dissipation holes. The shock-absorbing sleeves are mesh.