Preheating equipment of water heater

By using a preheating device with heat conductors and energy storage materials, the problem of low inlet water temperature in water heaters during winter in northern regions has been solved, achieving a comfortable and safe bathing experience with a constant water volume during bathing, and avoiding the risk of overheating of electrical wires.

CN224261950UActive Publication Date: 2026-05-19杨勇
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
杨勇
Filing Date
2025-06-19
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

In the cold winters of the north, the low inlet water temperature of water heaters leads to insufficient hot water for bathing. Existing technical solutions suffer from problems such as low water volume, reduced comfort, or safety hazards.

Method used

The preheating equipment, designed with heat conductors and energy storage materials, uses the finned and heating tube spatial structure to store heat in advance, thereby increasing the inlet water temperature and ensuring that the water volume remains constant and safe and reliable during the bathing process.

Benefits of technology

It achieves a comfortable bathing experience with a constant water volume during the bathing process, avoids safety hazards such as overheating of electrical wires, and improves the safety and comfort of water heaters.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224261950U_ABST
    Figure CN224261950U_ABST
Patent Text Reader

Abstract

The utility model relates to preheating equipment of a water heater. The preheating equipment is characterized by comprising a heat conductor, a plurality of fins and heating pipe spaces are respectively arranged on the heat conductor, a heat conduction space is arranged between every two adjacent fins, and the heating pipe spaces are located beside the fins; a heating pipe and a water guide coil pipe; the heating pipe is arranged in the heating pipe space, and the water guide coil pipe is wound on the outer side of the heat conductor or wound in the heat conduction space of the heat conductor; a sealing plate; the sealing plate is arranged at the end part of the heating pipe space to completely seal the heating pipe space; a shell and an energy storage material; the shell is arranged on the outer side of the heat conductor and the outer side of the water guide coil pipe to wrap the heat conductor and the water guide coil pipe, a water inlet and a water outlet of the water guide coil pipe extend out of the shell to be communicated with the outside, the energy storage material is arranged in the shell, and gaps among the shell, the heat conductor and the water guide coil pipe are filled with the energy storage material. The water heater is characterized in that heat is stored in advance through the energy storage material to increase the water inlet temperature of the water heater, and the heat conduction effect of preheating equipment is good; the water quantity is not changed in the bathing process of a user, bathing is comfortable, the phenomena of electric wire overheating and the like are avoided, and safety and reliability are achieved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to a preheating device for a water heater. Background Technology

[0002] Taking a hot shower can relieve fatigue, relax muscles, and promote metabolism. However, in the cold winters of northern regions, the low inlet water temperature may prevent the hot water from reaching the desired temperature. Currently, two solutions are generally used in this situation: First, reduce the water flow to achieve the desired shower temperature; second, place a heating element before the water heater inlet for simultaneous heating. The disadvantages of these two solutions are: 1. Low water flow reduces shower comfort; 2. Placing a heating element before the water heater inlet, especially with an instantaneous water heater, can lead to overheating of the wiring, short circuits, or even fires if the water heater has high instantaneous power. Summary of the Invention

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and provide a preheating device for water heaters. By storing heat in advance through energy storage materials, the inlet water temperature of the water heater is increased, and the preheating device has good thermal conductivity. During the bathing process, the water volume remains unchanged, the bathing is comfortable, and there will be no overheating of the wires, etc., making it safe and reliable.

[0004] To achieve the above objectives, this utility model is implemented as follows: it is a preheating device for a water heater, including a heat conductor; a plurality of fins and heating tube spaces are respectively provided on the heat conductor, a heat conduction space is provided between adjacent fins, and the heating tube space is located next to the fins.

[0005] Heating tube and water guide coil; the heating tube is disposed in the heating tube space, and the water guide coil is wrapped around the outside of the heat conductor or wrapped around the heat conduction space of the heat conductor;

[0006] A sealing plate; the sealing plate is located at the end of the heating tube space to completely seal the heating tube space;

[0007] The shell and energy storage material are provided on the outside of the heat conductor and the water guide coil, which enclose the heat conductor and the water guide coil. The water inlet and outlet of the water guide coil extend out of the shell and communicate with the outside. The energy storage material is provided inside the shell and fills the gaps between the shell, the heat conductor and the water guide coil.

[0008] In this technical solution, an energy storage material filling port is provided on the shell, and the energy storage material fills the gaps between the shell, the heat conductor and the water conduit through the energy storage material filling port. A sealing cap is provided on the energy storage material filling port.

[0009] In this technical solution, a temperature probe is also provided next to the outlet of the water guide coil.

[0010] In this technical solution, a mixing valve is also provided at the outlet of the water guide coil. The inlet of the mixing valve is connected to the external cold water pipe and the outlet of the water guide coil, and the outlet of the mixing valve is connected to the inlet of the water heater.

[0011] The advantages of this utility model compared with the prior art are: by storing heat in advance through energy storage materials, the inlet water temperature of the water heater is increased, the water volume remains unchanged during the bathing process, the bathing is comfortable, and there will be no overheating of the wires, etc., making it safe and reliable. Attached Figure Description

[0012] Figure 1 This is a perspective view of Embodiment 1 of this utility model;

[0013] Figure 2 yes Figure 1 A 3D view without the shell;

[0014] Figure 3 yes Figure 2 A 3D view from another angle;

[0015] Figure 4 yes Figure 3 A 3D view with the sealing plate removed;

[0016] Figure 5 yes Figure 2 The front view;

[0017] Figure 6 yes Figure 5 AA section view;

[0018] Figure 7 yes Figure 4 Exploded view;

[0019] Figure 8 This is a perspective view of Example 2;

[0020] Figure 9 yes Figure 8 A 3D view with the shell removed. Detailed Implementation

[0021] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding the invention and do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

[0022] In this description of the invention, the terms "upper" and "lower" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and are not intended to require the invention to be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the invention.

[0023] In this invention, unless otherwise explicitly specified and limited, the term "set" and other such terms should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or a detachable arrangement or an integral part; it can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances. Example

[0024] like Figures 1 to 7 As shown, it is a preheating device for a water heater, including...

[0025] Heat conductor 4; Several fins 41 and heating tube spaces 42 are respectively provided on the heat conductor 4, and a heat conduction space is provided between adjacent fins 41, and the heating tube space 42 is located next to the fins 41.

[0026] Heating tube 5 and water guide coil 2; the heating tube 5 is located in the heating tube space 42, and the water guide coil 2 is wrapped around the outside of the heat conductor 4 or wrapped around the heat conduction space of the heat conductor 4.

[0027] Sealing plate 3; the sealing plate 3 is provided at the end of the heating tube space 42 to completely seal the heating tube space 42;

[0028] The shell 1 and the energy storage material are provided on the outside of the heat conductor 4 and the water guide coil 2, which enclose the heat conductor 4 and the water guide coil 2. The water inlet and outlet of the water guide coil 2 extend out of the shell 1 and communicate with the outside. The energy storage material is provided inside the shell 1 and fills the gaps between the shell, the heat conductor 4 and the water guide coil 2.

[0029] The energy storage material is located within the heat-conducting space, encasing the water-conducting coil 2. The energy storage material conducts heat slowly, and its location within the heat-conducting space divides it into several small sections. The fins 4 conduct heat quickly, and the heating tube 5 heats and charges the energy storage material through the fins 41. The energy storage material's division into several small sections allows for rapid heat conduction and storage, also heating the water within the water-conducting coil 2. After a period of preheating, the water heater is activated for showering. The heat storage material releases heat to continue heating the water within the water-conducting coil 2, ensuring the water heater's inlet temperature, providing a good showering experience. Furthermore, the preheating equipment has low power consumption, preventing overheating of electrical wires and ensuring safety and reliability.

[0030] In this embodiment, an energy storage material filling port is provided on the shell 1. The energy storage material fills the gap between the shell, the heat conductor 4 and the water guide coil 2 through the energy storage material filling port. A sealing cap 11 is provided on the energy storage material filling port.

[0031] In this embodiment, a temperature probe is also provided next to the outlet of the water guide coil 2.

[0032] In this embodiment, a mixing valve is also provided at the outlet of the water guide coil 2. The inlet of the mixing valve is connected to the external cold water pipe and the outlet of the water guide coil 2, and the outlet of the mixing valve is connected to the inlet of the water heater. Example

[0033] like Figures 8 to 9 As shown, it is a preheating device for a water heater, including...

[0034] Heat conductor 4; Several fins 41 and heating tube spaces 42 are respectively provided on the heat conductor 4, and a heat conduction space is provided between adjacent fins 41, and the heating tube space 42 is located next to the fins 41.

[0035] Heating tube 5 and water guide coil 2; the heating tube 5 is located in the heating tube space 42, and the water guide coil 2 is wrapped around the outside of the heat conductor 4;

[0036] Sealing plate 3; the sealing plate 3 is provided at the end of the heating tube space 42 to completely seal the heating tube space 42;

[0037] The shell 1 and the energy storage material are provided on the outside of the heat conductor 4 and the water guide coil 2, which enclose the heat conductor 4 and the water guide coil 2. The water inlet and outlet of the water guide coil 2 extend out of the shell 1 and communicate with the outside. The energy storage material is provided inside the shell 1 and fills the gaps between the shell, the heat conductor 4 and the water guide coil 2.

[0038] The energy storage material is located within the heat-conducting space, encasing the water-conducting coil 2. The energy storage material conducts heat slowly, and its location within the heat-conducting space divides it into several small sections. The fins 41 conduct heat quickly, and the heating tube 5 heats and charges the energy storage material through the fins 41, also heating the water within the water-conducting coil 2. After a period of preheating, the water heater is started for showering. The heat storage material releases heat to continue heating the water within the water-conducting coil 2, ensuring the water heater's inlet temperature and providing a good showering experience. Furthermore, the preheating equipment has low power consumption, preventing overheating of electrical wires and ensuring safety and reliability.

[0039] In this embodiment, an energy storage material filling port is provided on the shell 1. The energy storage material fills the gap between the shell, the heat conductor 4 and the water guide coil 2 through the energy storage material filling port. A sealing cap 11 is provided on the energy storage material filling port.

[0040] In this embodiment, a temperature probe is also provided next to the outlet of the water guide coil 2.

[0041] In this embodiment, a mixing valve is also provided at the outlet of the water guide coil 2. The inlet of the mixing valve is connected to the external cold water pipe and the outlet of the water guide coil 2, and the outlet of the mixing valve is connected to the inlet of the water heater.

[0042] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations of these embodiments without departing from the principles and spirit of this utility model still fall within the protection scope of this utility model.

Claims

1. A preheating device for a water heater, characterized in that... include Heat conductor (4); Several fins (41) and heating tube space (42) are respectively provided on the heat conductor (4), and a heat conduction space is provided between adjacent fins (41), and the heating tube space (42) is located next to the fins (41); Heating tube (5) and water guide coil (2); the heating tube (5) is located in the heating tube space (42), and the water guide coil (2) is wrapped around the outside of the heat conductor (4) or in the heat conduction space of the heat conductor (4); Sealing plate (3); The sealing plate (3) is located at the end of the heating tube space (42) to completely seal the heating tube space (42); The shell (1) and energy storage material are provided on the outside of the heat conductor (4) and the water guide coil (2) to wrap the heat conductor (4) and the water guide coil (2). The inlet and outlet of the water guide coil (2) extend out of the shell (1) and communicate with the outside. The energy storage material is provided inside the shell (1) and fills the gaps between the shell, the heat conductor (4) and the water guide coil (2).

2. The preheating device for a water heater according to claim 1, characterized in that... An energy storage material filling port is provided on the shell (1). The energy storage material fills the gap between the shell, the heat conductor (4) and the water guide coil (2) through the energy storage material filling port. A sealing cap (11) is provided on the energy storage material filling port.

3. The preheating device for a water heater according to claim 1, characterized in that... A temperature probe is also installed next to the outlet of the water guide coil (2).

4. The preheating device for a water heater according to claim 1, characterized in that... A mixing valve is also provided at the outlet of the water guide coil (2). The inlet of the mixing valve is connected to the external cold water pipe and the outlet of the water guide coil (2). The outlet of the mixing valve is connected to the inlet of the water heater.