Anti-corrosion gas water heater

Abstract

The utility model discloses an anti-corrosion gas water heater which comprises a controller, a heat exchanger and a heating sleeve, a water inlet temperature probe is arranged on a water inlet pipe of the heat exchanger to detect the water inlet temperature, the heating sleeve is arranged on the water inlet pipe of the heat exchanger, an electric heating wire is arranged in the heating sleeve, and the electric heating wire is connected with the controller. The electric heating wire and the water inlet temperature probe are electrically connected with the controller. The controller controls the heating state of the electric heating wire according to the water inlet temperature detected by the water inlet temperature probe.

Description

Technical Field

[0001] The utility model relates to the technical field of gas water heaters, in particular to an anti-corrosion gas water heater. Background Art

[0002] Combustion requires air to participate in the reaction. When the gas water heater is operating, the blower sucks in air through the air inlet on the bottom shell. The air participates in combustion in the combustion chamber to generate heat. Due to thermal radiation, the air inside the gas water heater cabinet is heated. When used in winter, the inlet water temperature is low. When the cold water in the inlet pipe of the heat exchanger encounters the hot air inside the cabinet, condensed water will form on the surface of the inlet pipe. The condensed water drips down onto some components inside the cabinet, which will corrode the components and the inlet pipe. Content of the Utility Model

[0003] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an anti-corrosion gas water heater.

[0004] The anti-corrosion gas water heater according to an embodiment of the utility model includes a controller, a heat exchanger and a heating sleeve. An inlet water temperature probe is provided on the inlet pipe of the heat exchanger to detect the inlet water temperature. The heating sleeve is arranged on the inlet pipe of the heat exchanger. An electric heating wire is arranged in the heating sleeve. The electric heating wire and the inlet water temperature probe are respectively electrically connected to the controller. The controller controls the heating state of the electric heating wire according to the inlet water temperature detected by the inlet water temperature probe to evaporate the condensed water on the surface of the inlet pipe.

[0005] The anti-corrosion gas water heater according to an embodiment of the utility model has at least the following beneficial effects: When the gas water heater is used in winter, the inlet water temperature is low. When the cold water in the inlet pipe of the heat exchanger encounters the hot air inside the cabinet, condensed water will form on the surface of the inlet pipe, which will form verdigris and corrode the inlet pipe. At this time, when the controller senses that the inlet water temperature is lower than a preset value according to the inlet water temperature probe, it controls the electric heating wire to work. While heating the water in the inlet pipe, it evaporates the condensed water on the surface of the inlet pipe, preventing the inlet pipe from being corroded and also preventing the condensed water from dripping onto other components.

[0006] The additional aspects and advantages of the utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the utility model. Description of the Drawings

[0007] The following further illustrates the specific implementation manners of the utility model with reference to the drawings;

[0008] Figure 1 is the overall structure diagram of the anti-corrosion gas water heater;

[0009] Figure 2It is a structural diagram of a heating sleeve. Specific embodiments

[0010] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the drawings. The function of the drawings is to supplement the description of the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present invention, but it cannot be understood as a limitation on the protection scope of the present invention.

[0011] In the description of the present invention, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation on the present invention.

[0012] In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the number itself, and above, below, within, etc. are understood as including the number itself. If there is a description of first and second, it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0013] Referring to Figures 1 to 2 , an anti-corrosion gas water heater of the present invention includes a controller 10, a heat exchanger 20, and a heating sleeve 30. An inlet water temperature probe 22 is provided on the inlet pipe 21 of the heat exchanger 20 to detect the inlet water temperature. The heating sleeve 30 is arranged on the inlet pipe 21 of the heat exchanger 20. An electric heating wire 31 is provided in the heating sleeve 30. The electric heating wire 31 and the inlet water temperature probe 22 are respectively electrically connected to the controller 10; the controller 10 controls the heating state of the electric heating wire 31 according to the inlet water temperature detected by the inlet water temperature probe 22. When using this gas water heater in winter, the inlet water temperature is low. When the cold water in the inlet pipe 21 of the heat exchanger 20 meets the hot air in the box, condensed water will form on the surface of the inlet pipe 21, resulting in copper green corrosion of the inlet pipe 21. At this time, when the controller 10 senses that the inlet water temperature is lower than a preset value according to the inlet water temperature probe 22, it controls the electric heating wire 31 to work. While heating the water in the inlet pipe 21, it evaporates the condensed water on the surface of the inlet pipe 21, preventing the corrosion of the inlet pipe 21 and also preventing the condensed water from dripping onto other components.

[0014] Furthermore, the heating sleeve 30 includes a housing 33. The electric heating wire 31 is arranged in the housing 33. An insulating filler 32 is also provided in the housing 33. Both the housing 33 and the insulating filler 32 play a role in heat conduction, increasing the heating area.

[0015] Further, the cross-section of the heating sleeve 30 is in a superior arc shape, which is convenient for clamping on the water inlet pipe 21.

[0016] Those skilled in the art can easily understand that on the premise of no conflict, the above preferred modes can be freely combined and superimposed.

[0017] The above are only the preferred embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structural transformation made by using the content of the specification and drawings of the present invention under the inventive concept of the present invention, or directly or indirectly applied to other related technical fields, is included in the patent protection scope of the present invention.

Claims

1. An anti-corrosion gas water heater, characterized in that, Comprising: A controller (10), a heat exchanger (20) and a heating sleeve (30). An inlet water temperature probe (22) is provided on the inlet water pipe (21) of the heat exchanger (20) to detect the inlet water temperature. The heating sleeve (30) is arranged on the inlet water pipe (21) of the heat exchanger (20). An electric heating wire (31) is provided in the heating sleeve (30). The electric heating wire (31) and the inlet water temperature probe (22) are respectively electrically connected to the controller (10). The controller (10) controls the heating state of the electric heating wire (31) according to the inlet water temperature detected by the inlet water temperature probe (22) to evaporate the condensed water on the surface of the inlet water pipe (21).

2. The anti-corrosion gas water heater according to claim 1, characterized in that: The heating sleeve (30) includes a housing (33). The electric heating wire (31) is arranged in the housing (33). An insulating filler (32) is also provided in the housing (33).

3. The anti-corrosion gas water heater according to claim 2, wherein: The cross-section of the heating sleeve (30) is in a superior arc shape.

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