Gas water heater

Abstract

This utility model discloses a gas water heater, relating to the field of water heater technology. The gas water heater includes a main body, a water collection box, and a water-absorbing resin structure. The main body has a condensate channel; the water collection box is located at the bottom of the main body and is configured to collect condensate flowing out of the condensate channel; the water-absorbing resin structure is located inside the water collection box. This utility model eliminates the need for a drainage pipe, extends the user's replacement cycle, and reduces the frequency of user operation.

Description

Technical Field

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

[0002] In condensing gas water heaters of relevant technologies, the condensate produced by the condensing heat exchanger is discharged outside the machine through a drain pipe. However, some gas water heaters are installed near a drain pipe, making it difficult to drain the condensate. In other cases, where a drain pipe is nearby, the drain pipe extends from the gas water heater to the drain pipe. This results in a large number and mess of pipes (gas pipe, inlet pipe, outlet pipe, drain pipe, etc.) under the gas water heater, leading to poor installation coordination and a poor user experience. Utility Model Content

[0003] The main purpose of this utility model is to propose a gas water heater that eliminates the need for drainage pipes, thereby reducing the frequency of user replacement operations and improving the user experience.

[0004] To achieve the above objectives, the gas water heater proposed in this utility model includes:

[0005] The main body of the equipment has a condensate channel;

[0006] A water collection box, located at the bottom of the main body of the device, is configured to collect condensate flowing out of the condensate channel; and

[0007] A water-absorbing resin structure is disposed inside the water collection box.

[0008] In one embodiment of this application, the mass m of the water-absorbing resin structure satisfies: 180g ≤ m ≤ 350g.

[0009] In one embodiment of this application, the water absorption ratio K of the water-absorbing resin structure satisfies: 300 times ≤ K ≤ 500 times.

[0010] In one embodiment of this application, the water-absorbing resin structure is laid flat on the bottom wall of the inner cavity of the water collection box.

[0011] In one embodiment of this application, the main body of the device includes a housing, and the water collection box is disposed below the housing; the housing has a rectangular box structure, the projected area of ​​the housing along the vertical direction is S0, and the upper surface area of ​​the water-absorbing resin structure is S, satisfying: 0.5S0≤S≤S0.

[0012] In one embodiment of this application, the water collection box has a rectangular box structure; the width of the water collection box is the same as the width of the housing.

[0013] In one embodiment of this application, the main body of the device further includes a combustion heat exchange component and a condensing heat exchanger disposed within the casing. The condensing heat exchanger is disposed on one side of the combustion heat exchange component, the water collection box is located directly below the condensing heat exchanger, and the condensate channel extends vertically from the condensing heat exchanger into the water collection box.

[0014] In one embodiment of this application, the main body of the device further includes a fan, the fan being located above the combustion heat exchange assembly, and the condensing heat exchanger being located on one side of the fan;

[0015] The condensate channel is a water pipe that extends from the condenser heat exchanger downwards past the combustion heat exchange assembly and into the water collection box.

[0016] In one embodiment of this application, the main body of the device further includes a fan, which is located below the combustion heat exchange assembly;

[0017] The condensate channel is a water pipe that extends from the condenser heat exchanger, passing sequentially from top to bottom past the combustion heat exchange component and the fan, and then into the water collection box.

[0018] In one embodiment of this application, the gas water heater further includes a base installed at the bottom of the device body, the base having an installation groove opening towards the front of the device body, and the water collection box being detachably inserted into the installation groove via the opening.

[0019] In one embodiment of this application, the gas water heater further includes a fan configured to blow air toward the water-absorbing resin structure.

[0020] In one embodiment of this application, the gas water heater further includes a heating structure configured to heat the water-absorbing resin structure.

[0021] In this utility model's gas water heater, a water collection box is installed at the bottom of the main body of the device to collect condensate, eliminating the need for a drain pipe. This also serves to shield the pipes below the main body, improving installation coordination. A water-absorbing resin structure is installed inside the water collection box. This structure quickly absorbs the condensate and forms a gel, preventing liquid condensate from accumulating and reducing bacterial growth. Furthermore, the water-absorbing resin structure has a high absorption capacity; compared to related technologies with the same capacity but without a water-absorbing resin structure, this application can absorb more condensate, extending the user's replacement cycle, reducing user operation frequency, and improving the user experience. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of an embodiment of the gas water heater of this utility model;

[0024] Figure 2 This is an external view of the gas water heater of this utility model;

[0025] Figure 3 This is an exploded view of the main body of the gas water heater and the water collection box of this utility model.

[0026] Explanation of icon numbers:

[0027] 100 Equipment body 300 Water-absorbing resin structure 110 chassis 400 base 120 Combustion heat exchange components 401 Mounting slot 130 Condensing heat exchanger 510 Inlet pipe 140 Condensate channel 520 water outlet pipe 200 Water collection box 600 gas pipe

[0028] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0031] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0032] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0033] In condensing gas water heaters, to address the issue of inconvenient drainage, a condensate recovery device is installed to collect and treat the condensate, preventing its discharge. However, this recovery module is costly, and some users remain concerned about the health effects of condensate. Other gas water heaters have collection boxes to collect condensate. If the collection time is long, the accumulated condensate can easily breed bacteria; if the collection time is short, frequent emptying is required, making the process cumbersome for users.

[0034] Therefore, this utility model proposes a gas water heater that eliminates the need for a drain pipe. By incorporating a water-absorbing resin structure within the water collection box, the high water absorption capacity of the resin reduces or eliminates liquid condensation within the box, preventing bacterial growth, extending the user's operating cycle, reducing the frequency of user operation, and improving the user experience. For ease of explanation, this specification assumes the gas water heater is installed on a wall or mounted on a wall surface. The height direction refers to the vertical direction, the width direction refers to the horizontal direction facing the gas water heater, and the thickness direction refers to the front-to-back direction facing the gas water heater.

[0035] In the embodiments of this utility model, such as Figure 1 As shown, the gas water heater includes a main body 100, a water collection box 200, and a water-absorbing resin structure 300.

[0036] The main body of the equipment 100 has a condensate channel 140; a water collection box 200 is located at the bottom of the main body of the equipment 100 and is configured to receive the condensate flowing out of the condensate channel 140; and a water-absorbing resin structure 300 is located inside the water collection box 200.

[0037] In this embodiment, the main body 100 is the main structure of a gas water heater, which may include a fan, a combustion heat exchange component 120, a condensing heat exchanger 130, and a flue, etc. It is understood that the main body 100 will generate condensate during operation. Its specific internal structure can be referenced from a conventional condensing gas water heater, and will not be described in detail here. One end of the condensate channel 140 is connected to the condensing heat exchanger 130 inside the main body 100, and the other end is connected to the water collection box 200, used to guide the condensate into the water collection box 200. The water collection box 200 is located at the bottom of the main body 100, which facilitates the collection of condensate and also provides some shielding for the pipes below the main body 100 (gas pipe 600, water inlet pipe 510, water outlet pipe 520, etc.). Optionally, the water collection box 200 can be a box structure with an open top, such as a rectangular box, a circular box, or other irregularly shaped box.

[0038] By installing a water-absorbing resin structure 300 inside the water collection box 200, when condensate flows into the water collection box 200 during water heater operation, the water-absorbing resin structure 300 can quickly absorb the condensate and form a gel structure, preventing liquid condensate from accumulating in the water collection box 200. When the water heater is not working, the water-absorbing resin structure 300 can evaporate the absorbed water appropriately. When the water heater is working again, the water-absorbing resin structure 300 can continue to absorb condensate and form a gel. This cycle repeats continuously, which can prevent or significantly reduce the accumulation of liquid condensate in the water collection box 200, reduce bacterial growth, and extend the water emptying and replacement cycle for users, reducing the frequency of user operations.

[0039] It should be noted that the absorbent resin structure 300 can typically absorb hundreds to thousands of times its own weight in water. Therefore, compared to a water collection box 200 of the same capacity without the absorbent resin structure 300, the water collection box 200 of this application with the absorbent resin structure 300 can collect a larger volume of condensate. Moreover, the condensate forms a gel structure after being absorbed, which is less prone to bacterial growth than liquid condensate. The absorbent resin structure 300 only needs to be replaced when it is saturated with water, thus extending the user's operating cycle, for example, only requiring replacement every six months or a year, thereby improving the user experience.

[0040] In practical applications, the specific material of the absorbent resin structure 300 can be determined according to the actual situation. For example, it can be sodium polyacrylate, starch-grafted acrylate, polyvinyl alcohol, etc. The way the absorbent resin structure 300 is placed in the water collection box 200 can be determined according to the actual situation. For example, it can be laid flat at the bottom of the water collection box 200, piled up in a certain area of ​​the bottom wall of the water collection box 200, or irregularly placed in the water collection box 200, etc.

[0041] In summary, the gas water heater of this utility model, by setting a water collection box 200 at the bottom of the main body 100 to collect condensate, eliminates the need for a drain pipe and also serves to shield the pipes below the main body 100, improving installation coordination; by setting a water-absorbing resin structure 300 inside the water collection box 200, the water-absorbing resin structure 300 can quickly absorb condensate and form a gel structure, preventing liquid condensate from accumulating in the water collection box 200 and reducing bacterial growth; moreover, the water-absorbing resin structure 300 has a high water absorption ratio. Compared with water collection boxes 200 of the same capacity in related technologies that do not have a water-absorbing resin structure 300, this application can absorb more condensate, which can extend the user's replacement cycle, reduce the frequency of user operation, and improve the user experience.

[0042] In one embodiment of this application, the mass m of the water-absorbing resin structure 300 satisfies: 180g≤m≤350g.

[0043] Understandably, the mass of the water-absorbing resin structure 300 should not be too large or too small. If the mass is too small, the water absorption capacity of the water-absorbing resin structure 300 may be weakened, and the replacement frequency of the water-absorbing resin structure 300 may be too high, leading to excessive user operation. If the mass is too large, it may result in an excessively large volume of the water-absorbing resin structure 300, causing the overall size of the water heater to be too large. Based on this, this embodiment sets the mass m of the water-absorbing resin structure 300 to satisfy 180g ≤ m ≤ 350g, which can effectively reduce the frequency of user operation while avoiding an excessively large water heater. Preferably, the mass m of the water-absorbing resin structure 300 satisfies 200g ≤ m ≤ 300g, which can roughly meet the user's replacement frequency of once every six months or once a year. Optionally, the mass m of the water-absorbing resin structure 300 can be 200g, 205g, 210g, 213g, 215g, 220g, 230g, 235g, 240g, 250g, 255g, 258g, 260g, 266g, 270g, 275g, 278g, 280g, 283g, 290g, or 300g, etc.

[0044] In one embodiment of this application, the water absorption ratio K of the water-absorbing resin structure 300 satisfies: 300 times ≤ K ≤ 500 times.

[0045] Understandably, the water absorption ratio of the water-absorbing resin structure 300 should not be too high or too low. If the water absorption ratio is too low, the water absorption capacity of the water-absorbing resin structure 300 may decrease, and the replacement frequency of the water-absorbing resin structure 300 may be too high, resulting in excessive user operation. If the water absorption ratio is too high, it may lead to an excessively large volume of the water-absorbing resin structure 300 and higher costs. Based on this, this embodiment selects the water absorption ratio K of the water-absorbing resin structure 300 to satisfy 300 times ≤ K ≤ 500 times, which can effectively reduce the frequency of user operation while avoiding an excessively large water heater, and can roughly meet the user's operation frequency of replacing it once every six months or once a year.

[0046] Please see Figure 1 In one embodiment of this application, the water-absorbing resin structure 300 is laid flat on the bottom wall of the inner cavity of the water collection box 200.

[0047] This design increases the contact area between the water-absorbing resin structure 300 and the condensate, thereby increasing the water absorption area and improving the water absorption efficiency.

[0048] Please see Figure 1 and Figure 2 In one embodiment of this application, the main body of the device 100 includes a housing 110 and a water collection box 200 disposed below the housing 110. The housing 110 has a rectangular box structure, and the projected area of ​​the housing 110 along the vertical direction is S0. The upper surface area of ​​the water-absorbing resin structure 300 is S, satisfying: 0.5S0≤S≤S0.

[0049] Understandably, the moisture inside the water-absorbing resin structure 300 evaporates through its upper surface. Therefore, the upper surface area of ​​the water-absorbing resin structure 300 should not be too small or too large. If it is too small, the evaporation rate of the moisture in the water-absorbing resin structure 300 will be too slow, reducing the amount of water absorbed by the water-absorbing resin structure 300 and potentially leading to excessive replacement frequency of the water-absorbing resin structure 300, resulting in too much user operation. Conversely, if it is too large, it may result in a larger area for the water collection box 200, leading to an excessively large overall size of the water heater. Based on this, in this embodiment, by setting the upper surface area S of the water-absorbing resin structure 300 to be no less than half of the vertically projected area S0 of the casing 110 and no greater than the vertically projected area S0 of the casing 110, the frequency of user operation can be effectively reduced while avoiding an excessively large water heater.

[0050] Furthermore, the water collection box 200 has a rectangular box structure, which is regular in structure, reduces manufacturing difficulty, and is easy for users to operate.

[0051] Please see Figure 1 and Figure 2In one embodiment of this application, the width of the water collection box 200 is the same as the width of the housing 110. This design can increase the upper surface area of ​​the water-absorbing resin structure 300, improve the water evaporation rate, and at the same time ensure the overall appearance of the gas water heater, improve the user experience, and reduce the customer complaint rate.

[0052] Please see Figure 1 and Figure 2 In one embodiment of this application, the main body 100 of the device further includes a combustion heat exchange component 120 and a condensing heat exchanger 130 disposed in the housing 110. The condensing heat exchanger 130 is disposed on one side of the combustion heat exchange component 120, the water collection box 200 is located directly below the condensing heat exchanger 130, and the condensing water channel 140 extends vertically from the condensing heat exchanger 130 into the water collection box 200.

[0053] This design, by placing the water collection box 200 directly below the condensing heat exchanger 130 and extending the condensate channel 140 vertically, allows the condensate to flow quickly into the water collection box 200 under its own gravity, further accelerating the condensate collection efficiency and preventing the condensate from corroding other internal structures of the main body 100.

[0054] In one embodiment, the main body 100 of the device also includes a fan, which is located above the combustion heat exchange component 120, and the condenser heat exchanger 130 is located on one side of the fan; the condenser water channel 140 is a water pipe that extends from the condenser heat exchanger 130 downwards across the combustion heat exchange component 120 and into the water collection box 200.

[0055] In this embodiment, the gas water heater is a forced-draft type. The water collection box 200 is located at the bottom of the entire unit. The condensate channel 140 extends from top to bottom past the combustion heat exchange component 120 and into the water collection box 200. It can be understood that the condensate channel 140 can pass through the thickness direction of the combustion heat exchange component 120 or it can pass through the width direction of the combustion heat exchange component 120. This arrangement can make full use of the width or thickness space inside the water heater, reducing the overall size of the unit.

[0056] In one embodiment, the main body of the device also includes a fan located below the combustion heat exchange component; the condensate channel is a water pipe that extends from the condensate heat exchanger, passing through the combustion heat exchange component and the fan in sequence from top to bottom, and then into the water collection box.

[0057] In this embodiment, the gas water heater is a forced-draft model. The water collection box 200 is located at the bottom of the entire unit. The condensate channel 140 extends from top to bottom, passing over the combustion heat exchange component 120 and the fan, and then into the water collection box 200. It can be understood that the condensate channel 140 can pass through the thickness direction of the combustion heat exchange component 120, or it can pass through the width direction of the combustion heat exchange component 120. This arrangement can fully utilize the width or thickness space inside the water heater, reducing the overall size of the unit.

[0058] Please see Figure 2 and Figure 3 In one embodiment of this application, the gas water heater further includes a base 400 installed at the bottom of the device body 100. The base 400 is provided with an installation groove 401 that opens toward the front of the device body 100. The water collection box 200 is detachably inserted into the installation groove 401 through the opening.

[0059] Compared to directly connecting the water collection box 200 to the main body 100, this design provides structural reinforcement through the base 400. The mounting slot 401 opens towards the front of the main body 100, allowing for easy front-to-back sliding and disassembly of the water collection box 200. This design also allows for the installation of a handle on the front wall of the water collection box 200 for convenient operation. Optionally, the base 400 can be integrally connected to the housing 110 or separately fixed. In practical applications, the inlet pipe 510, outlet pipe 520, and gas pipe 600 can be positioned at the rear of the base 400 to maintain a neat and orderly front appearance.

[0060] In one embodiment of this application, the gas water heater also includes a fan configured to blow air toward the water-absorbing resin structure 300.

[0061] This design allows the fan to blow air towards the water-absorbing resin structure 300, accelerating the evaporation of moisture within the resin, extending its lifespan, and further extending the user's replacement cycle. Optionally, the fan can be a fan installed inside the water collection box 200.

[0062] In one embodiment of this application, the gas water heater further includes a heating structure configured to heat the water-absorbing resin structure 300.

[0063] This design allows the heating structure to increase the temperature of the absorbent resin structure 300, accelerating the evaporation of moisture within the resin, extending its service life, and further extending the user's replacement cycle. Optionally, the heating structure can be an electric heating rod.

[0064] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. All equivalent structural transformations made under the inventive concept of the present utility model using the contents of the present utility model specification and drawings, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model.

Claims

1. A gas water heater, characterized in that, include: The main body of the equipment has a condensate channel; A water collection box, located at the bottom of the main body of the device, is configured to collect the condensate flowing out of the condensate channel; as well as A water-absorbing resin structure is disposed inside the water collection box.

2. The gas water heater as described in claim 1, characterized in that, The mass m of the water-absorbing resin structure satisfies: 180g≤m≤350g.

3. The gas water heater as described in claim 2, characterized in that, The water absorption ratio K of the water-absorbing resin structure satisfies: 300 times ≤ K ≤ 500 times.

4. The gas water heater as described in any one of claims 1 to 3, characterized in that, The water-absorbing resin structure is laid flat on the bottom wall of the inner cavity of the water collection box.

5. The gas water heater as described in claim 4, characterized in that, The main body of the equipment includes a housing, and the water collection box is located below the housing; The housing has a rectangular box structure, the projected area of ​​the housing along the vertical direction is S0, and the upper surface area of ​​the water-absorbing resin structure is S, satisfying: 0.5S0≤S≤S0.

6. The gas water heater as described in claim 5, characterized in that, The water collection box has a rectangular box structure; the width of the water collection box is the same as the width of the casing.

7. The gas water heater as described in claim 5, characterized in that, The main body of the equipment also includes a combustion heat exchange component and a condensing heat exchanger disposed within the casing. The condensing heat exchanger is disposed on one side of the combustion heat exchange component, and the water collection box is located directly below the condensing heat exchanger. The condensate channel extends vertically from the condensing heat exchanger into the water collection box.

8. The gas water heater as described in claim 7, characterized in that, The main body of the equipment also includes a fan, which is located above the combustion heat exchange assembly, and the condensing heat exchanger is located on one side of the fan; The condensate channel is a water pipe that extends from the condenser heat exchanger downwards past the combustion heat exchange assembly and into the water collection box.

9. The gas water heater as described in claim 7, characterized in that, The main body of the equipment also includes a fan, which is located below the combustion heat exchange assembly; The condensate channel is a water pipe that extends from the condenser heat exchanger, passing sequentially from top to bottom past the combustion heat exchange component and the fan, and then into the water collection box.

10. The gas water heater as described in any one of claims 1 to 3, characterized in that, The gas water heater also includes a base installed at the bottom of the main body of the device. The base has a mounting groove with an opening facing the front of the main body of the device. The water collection box is detachably inserted into the mounting groove through the opening.

11. The gas water heater as described in any one of claims 1 to 3, characterized in that, The gas water heater also includes a fan configured to blow air toward the water-absorbing resin structure; And / or, the gas water heater further includes a heating structure configured to heat the water-absorbing resin structure.

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