Water heater

Abstract

The utility model provides a kind of water heater, it is related to water heater technical field.The water heater includes primary heat exchange device, secondary heat exchange device, flow guide piece and condensate water treatment device, primary heat exchange device and secondary heat exchange device are sequentially arranged along the flow direction of flue gas.The condensate water treatment device includes water storage part, heating part and water level detection part, water storage part is used to store the condensate water condensed by secondary heat exchange device, heating part is used to heat the condensate water stored in water storage part, and water level detection part is used to detect the water level in water storage part to control the opening or closing of heating part.The flow guide piece is arranged between the secondary heat exchange device and water storage part, and the shape of the flow guide piece is set to guide the condensate water condensed by secondary heat exchange device to water storage part.

Description

Technical Field

[0001] This utility model relates to the field of water heater technology, and in particular to a water heater. Background Technology

[0002] Condensing gas water heaters gradually produce condensate during operation. This acidic condensate is corrosive and requires specific materials to neutralize its acidity. Furthermore, the condensate cannot be reused within the water heater and must be drained outside.

[0003] Currently, most gas water heaters use a neutralizing agent box to neutralize the acidity of condensate. The materials in the neutralizing agent box need to be replaced regularly, increasing the operating cost of the water heater. Additionally, the neutralizing agent box increases the size of the water heater. Draining the condensate requires adding a drain pipe to the bottom of the water heater, which necessitates pre-installing the pipe during home renovation, or leaving the drain pipe exposed, affecting its appearance. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology, such as complex condensate treatment structure, large size, and high cost, and to provide a water heater.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] This utility model provides a water heater, which includes a primary heat exchange device, a secondary heat exchange device, a flow guide, and a condensate treatment device. The primary heat exchange device and the secondary heat exchange device are arranged sequentially along the flow direction of the flue gas.

[0007] The condensate treatment device includes a water storage section, a heating section, and a water level detection section. The water storage section is used to store the condensate from the secondary heat exchanger. The heating section is used to heat the condensate stored in the water storage section. The water level detection section is used to detect the water level in the water storage section to control the heating section to turn on or off.

[0008] The flow guide is disposed between the secondary heat exchange device and the water storage section, and the shape of the flow guide is configured to guide the condensate from the secondary heat exchange device to the water storage section.

[0009] In this design, flue gas first flows through a primary heat exchanger for main heat exchange, then through a secondary heat exchanger for auxiliary heat exchange, where condensate is produced. A flow guide located between the secondary heat exchanger and the water storage section guides the condensate into the water storage section of a condensate treatment device. The condensate treatment device also includes a heating section and a water level detection section. The heating section heats the condensate stored in the water storage section, causing it to vaporize. The water level detection section detects the water level in the water storage section; when the water level is higher than a preset level, the heating section is activated; when the water level is lower than the preset level, the heating section is deactivated. This design eliminates the need for a neutralizing agent box and drain pipe in the water heater, resulting in a simpler structure, smaller size, and reduced manufacturing costs.

[0010] Preferably, at least a portion of the flow guide is disposed on the path of the flue gas flowing from the primary heat exchanger to the secondary heat exchanger.

[0011] In this solution, by placing at least a portion of the guide element in the path of the flue gas flowing from the primary heat exchanger to the secondary heat exchanger, the condensate on the guide element can be heated and vaporized when the flue gas flows through it, thereby further improving the vaporization effect of the condensate.

[0012] Preferably, the guide member includes a first part and a second part, the first part extending obliquely toward the water storage section, and the second part extending in a direction perpendicular to the flow direction of the flue gas.

[0013] In this design, by extending the first section at an angle towards the water storage section, the condensate can be better guided towards the water storage section, making it easier for the condensate to flow into the water storage section. Furthermore, by extending the second section perpendicular to the flow direction of the flue gas, the flue gas can flow more fully through the second section and heat it to vaporize the condensate, further improving the vaporization effect of the condensate.

[0014] Preferably, the secondary heat exchange device includes multiple heat exchange tubes, which are arranged alternately in the direction of flue gas flow.

[0015] In this scheme, by staggering multiple heat exchange tubes in the direction of flue gas flow, the flue gas can come into more full contact with the multiple heat exchange tubes, resulting in better heat exchange effect.

[0016] Preferably, the secondary heat exchange device further includes a plurality of heat exchange fins, which are spaced apart on the heat exchange tube, and a plurality of heat exchange channels are formed between the heat exchange tube and the heat exchange fins, and the plurality of heat exchange channels are interconnected.

[0017] In this design, by installing multiple spaced heat exchange fins on the heat exchange tubes, the heat exchange efficiency of the secondary heat exchange device can be further improved. Multiple heat exchange channels are formed between the heat exchange tubes and the heat exchange fins, allowing the condensate generated during heat exchange to flow in the interconnected channels, thus facilitating the collection of the condensate.

[0018] Preferably, the secondary heat exchange device further includes at least one main channel, and the condensate in the plurality of heat exchange channels is collected in the main channel, with the output end of the main channel facing the guide member.

[0019] In this scheme, the condensate in the heat exchange channel is collected in the main channel, and the output end of the main channel is set towards the condensate treatment device, which makes it easier to guide the condensate collected in the main channel to the guide element, and then guide it into the water storage section.

[0020] Preferably, the water storage section is a water storage tank, and the opening of the water storage tank gradually widens in the direction toward the secondary heat exchange device.

[0021] In this solution, by setting up a tank-shaped water storage section and gradually widening the opening of the water storage tank in the direction towards the secondary heat exchange device, it is easier for the water storage section to receive and store the condensate from the secondary heat exchange device, and it is also easier for the condensate to be vaporized when heated, thus further improving the effect of condensate treatment.

[0022] Preferably, the water level detection unit includes a sensing needle, which is disposed on the side wall of the water storage unit.

[0023] In this solution, by setting the sensing part as a needle and placing the sensing needle on the side wall of the water storage part, the water level height can be detected more accurately.

[0024] Preferably, the water heater further includes a fan for removing the condensate that has been heated and vaporized by the heating element.

[0025] In this solution, the fan can extract the condensate that has been heated and vaporized by the heating element, accelerating the vaporization rate of the condensate and thus further increasing the efficiency of condensate treatment.

[0026] Preferably, the heating part is a heating rod, which extends along the length of the water storage part.

[0027] In this solution, by setting the heating element as a rod and extending the heating rod along the length of the water storage section, the contact area between the heating rod and the condensate is increased, thereby heating the condensate more fully and further accelerating the vaporization rate of the condensate.

[0028] The positive and progressive effects of this utility model are as follows:

[0029] This utility model provides a water heater comprising a primary heat exchanger, a secondary heat exchanger, a flow guide, and a condensate treatment device. Flue gas first flows through the primary heat exchanger for main heat exchange, then through the secondary heat exchanger for auxiliary heat exchange, where condensate is produced. The flow guide, located between the secondary heat exchanger and the water storage section, guides the condensate into the water storage section of the condensate treatment device. The condensate treatment device also includes a heating section and a water level detection section. The heating section heats the condensate stored in the water storage section, causing it to vaporize. The water level detection section detects the water level in the water storage section; when the water level is higher than a preset level, the heating section is activated; when the water level is lower than the preset level, the heating section is deactivated. This design eliminates the need for a neutralizing agent box and drain pipe, resulting in a simpler structure, smaller size, and reduced manufacturing costs. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of the condensing heat exchange structure of a water heater according to an embodiment of the present invention.

[0031] Figure 2 This is a schematic diagram of a two-stage heat exchange device according to an embodiment of the present invention.

[0032] Explanation of reference numerals in the attached figures:

[0033] 100 primary heat exchangers

[0034] Secondary heat exchanger 200

[0035] Heat exchanger tube 210

[0036] Replace the heating fins 220

[0037] Heat exchanger flow channel 230

[0038] Mainstream Road 240

[0039] 300 flow guide

[0040] Part 1 310

[0041] Part Two 320

[0042] Condensate treatment unit 400

[0043] Water storage section 410

[0044] Heating unit 420

[0045] Water level detection unit 430

[0046] Fan 500

[0047] Condensate flows to x

[0048] Smoke flow direction y Detailed Implementation

[0049] The present invention will be further described below by way of embodiments, but the present invention is not limited to the scope of the following embodiments.

[0050] like Figure 1 As shown, this embodiment provides a water heater, which includes a primary heat exchanger 100, a secondary heat exchanger 200, a flow guide 300, and a condensate treatment device 400. The primary heat exchanger 100 and the secondary heat exchanger 200 are arranged sequentially along the flow direction of the flue gas. In this embodiment, the flue gas flows from bottom to top, and the secondary heat exchanger 200 is located above the primary heat exchanger 100. In other embodiments, those skilled in the art can set the positions of the primary heat exchanger 100 and the secondary heat exchanger 200 according to specific circumstances.

[0051] The condensate treatment device 400 includes a water storage section 410, a heating section 420, and a water level detection section 430. The water storage section 410 stores the condensate from the secondary heat exchanger 200, the heating section 420 heats the condensate stored in the water storage section 410, and the water level detection section 430 detects the water level in the water storage section 410 to control the heating section 420 to turn on or off. A flow guide 300 is disposed between the secondary heat exchanger 200 and the water storage section 410, and the shape of the flow guide 300 is configured to guide the condensate from the secondary heat exchanger 200 to the water storage section 410.

[0052] Figure 1 The diagram shows the condensate flow direction x and the flue gas flow direction y. The flue gas first flows through the primary heat exchanger 100 for main heat exchange, then through the secondary heat exchanger 200 for auxiliary heat exchange, where condensate is produced. A guide member 300 located between the secondary heat exchanger 200 and the water storage section 410 guides the condensate into the water storage section 410 of the condensate treatment device 400. The condensate treatment device 400 also includes a heating unit 420 and a water level detection unit 430. The heating unit 420 heats the condensate stored in the water storage section 410, thereby vaporizing the condensate. The water level detection unit 430 detects the water level in the water storage section 410. When the water level is higher than a preset level, the heating unit 420 is turned on; when the water level is lower than the preset level, the heating unit 420 is turned off. With the above design, the water heater does not need to have a neutralizing box and drain pipe, making the structure of the water heater simpler and smaller, thus saving production and manufacturing costs.

[0053] At least a portion of the guide member 300 is disposed in the path of the flue gas flowing from the primary heat exchanger 100 to the secondary heat exchanger 200. By disposing at least a portion of the guide member 300 in the path of the flue gas flowing from the primary heat exchanger 100 to the secondary heat exchanger 200, the condensate on the guide member 300 can be heated and vaporized when the flue gas flows through the guide member 300, thereby further improving the vaporization effect of the condensate.

[0054] The guide member 300 includes a first part 310 and a second part 320. The first part 310 extends obliquely toward the water storage section 410, and the extension direction of the second part 320 is perpendicular to the flow direction of the flue gas. By extending the first part 310 obliquely toward the water storage section 410, the condensate can be better guided toward the water storage section 410, making it easier for the condensate to flow into the water storage section 410. Furthermore, by extending the second part 320 perpendicular to the flow direction of the flue gas, the flue gas can flow more fully through the second part 320 and heat it to vaporize the condensate, further improving the vaporization effect of the condensate.

[0055] like Figure 2 As shown, the secondary heat exchange device 200 includes multiple heat exchange tubes 210, which are staggered in the direction of flue gas flow. By staggering the multiple heat exchange tubes 210 in the direction of flue gas flow, the flue gas can come into more full contact with the multiple heat exchange tubes 210, resulting in a better heat exchange effect.

[0056] The secondary heat exchanger 200 also includes multiple heat exchange fins 220, which are spaced apart on the heat exchange tubes 210. Multiple heat exchange channels 230 are formed between the heat exchange tubes 210 and the heat exchange fins 220, and these channels are interconnected. By providing multiple spaced heat exchange fins 220 on the heat exchange tubes 210, the heat exchange effect of the secondary heat exchanger 200 can be further improved. The multiple heat exchange channels 230 formed between the heat exchange tubes 210 and the heat exchange fins 220 allow the condensate generated during heat exchange to flow within the interconnected channels 230, facilitating the collection of the condensate.

[0057] The secondary heat exchanger 200 also includes at least one main channel 240, where condensate from the multiple heat exchange channels 230 is collected. The output end of the main channel 240 is positioned towards the guide element 300. The condensate from the heat exchange channels 230 is collected in the main channel 240, and the output end of the main channel 240 is positioned towards the condensate treatment device 400, thus facilitating the flow of the condensate collected in the main channel 240 to the guide element 300, and subsequently into the water storage section 410.

[0058] In this embodiment, the water storage section 410 is a water storage tank, and the opening of the water storage tank gradually widens in the direction toward the secondary heat exchanger 200. By providing a tank-shaped water storage section 410 and gradually widening the opening of the water storage tank in the direction toward the secondary heat exchanger 200, it is easier for the water storage section 410 to receive and store condensate from the secondary heat exchanger 200, and it is also easier for the condensate to be vaporized during heating, further improving the condensate treatment effect. In other embodiments, other specific structures of the water storage section 410 that are deemed suitable by those skilled in the art can also be selected.

[0059] In this embodiment, the water level detection unit 430 includes a sensing needle disposed on the side wall of the water storage unit 410. By configuring the sensing unit as a needle and disposing of the sensing needle on the side wall of the water storage unit 410, the water level height can be detected more accurately. In other embodiments, other specific structures of the water level detection unit 430 that are deemed suitable by those skilled in the art may also be selected.

[0060] The water heater also includes a fan 500, which is used to remove the condensate vaporized by the heating element 420. The fan 500 removes the condensate vaporized by the heating element 420, accelerating the vaporization rate and further increasing the efficiency of condensate treatment. In this embodiment, the fan 500 is located above the condensate treatment device 400, allowing for better removal of water vapor. In other embodiments, the fan 500 can be located in other positions deemed suitable by those skilled in the art.

[0061] The heating element 420 is a heating rod that extends along the length of the water storage element 410. By setting the heating element 420 in a rod shape and extending it along the length of the water storage element 410, the contact area between the heating rod and the condensate is increased, thereby heating the condensate more thoroughly and further accelerating the vaporization rate of the condensate. The heating rod can be made of ceramic or other materials deemed suitable by those skilled in the art.

[0062] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship of the device or component during normal use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation at any time, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model in this respect.

[0063] While specific embodiments of this utility model have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of this utility model is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of this utility model, but all such changes and modifications fall within the scope of protection of this utility model.

Claims

1. A water heater, characterized by, The water heater includes a primary heat exchange device, a secondary heat exchange device, a flow guide, and a condensate treatment device, wherein the primary heat exchange device and the secondary heat exchange device are arranged sequentially along the flow direction of the flue gas. The condensate treatment device includes a water storage section, a heating section, and a water level detection section. The water storage section is used to store the condensate from the secondary heat exchanger. The heating section is used to heat the condensate stored in the water storage section. The water level detection section is used to detect the water level in the water storage section to control the heating section to turn on or off. The flow guide is disposed between the secondary heat exchange device and the water storage section, and the shape of the flow guide is configured to guide the condensate from the secondary heat exchange device to the water storage section.

2. The water heater of claim 1, wherein At least a portion of the flow guide is disposed on the path of the flue gas flowing from the primary heat exchanger to the secondary heat exchanger.

3. The water heater of claim 2, wherein the controller is configured to: The flow guide includes a first part and a second part, the first part extending obliquely toward the water storage section, and the second part extending in a direction perpendicular to the flow direction of the flue gas.

4. The water heater of claim 1, wherein The secondary heat exchange device includes multiple heat exchange tubes, which are staggered in the direction of flue gas flow.

5. The water heater of claim 4, wherein the controller is configured to: The secondary heat exchange device further includes multiple heat exchange fins, which are spaced apart on the heat exchange tube. Multiple heat exchange channels are formed between the heat exchange tube and the heat exchange fins, and the multiple heat exchange channels are interconnected.

6. The water heater of claim 5, wherein the controller is configured to: The secondary heat exchange device further includes at least one main channel, and the condensate in the multiple heat exchange channels is collected in the main channel, with the output end of the main channel facing the guide member.

7. The water heater of claim 1, wherein The water storage section is a water storage tank, and the opening of the water storage tank gradually widens in the direction toward the secondary heat exchange device.

8. The water heater of claim 1, wherein The water level detection unit includes a sensing needle, which is disposed on the side wall of the water storage unit.

9. The water heater of claim 1, wherein The water heater also includes a fan, which is used to remove the condensate that has been heated and vaporized by the heating element.

10. The water heater of claim 1, wherein The heating element is a heating rod that extends along the length of the water storage section.

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