Gas water heater with drying function
By integrating air ducts, fans, and heating devices into a gas water heater, and utilizing waste heat from the flue pipe for drying, the problem of unused waste heat is solved, achieving the dual satisfaction of hot water supply and drying functions, improving energy efficiency and reducing costs.
Patent Information
- Application Number
- CN202423275378.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-27
- Publication Date
- 2025-11-25
- Estimated Expiration
- 2034-12-27
AI Technical Summary
Existing gas water heaters do not effectively utilize the waste heat generated during operation, and their functions are limited, failing to meet the diverse needs of users.
Design a gas water heater with drying function, integrating air duct, fan, heating device and heat exchanger. It uses waste heat in the flue to heat the air and blows hot air out through the hot air outlet to dry the items. At the same time, a PTC heater and centrifugal fan are used to ensure the stability of temperature and air speed, realizing the secondary utilization of energy.
It achieves the dual functions of hot water supply and item drying, improves energy efficiency, reduces energy waste, lowers operating costs, and has a compact structure to meet diverse needs.
Smart Images

Figure CN223596207U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to water heater technical field, especially a kind of gas water heater with drying function. BACKGROUND
[0002] The existing gas water heater produces a lot of waste heat during operation, which is usually directly discharged to the outside through the exhaust pipe without effective utilization, causing energy waste. In addition, the existing gas water heater only provides hot water function and cannot meet the diverse needs of users.
[0003] Therefore, it is necessary to provide an improved technical solution to overcome the above-mentioned deficiencies of the prior art. UTILITY MODEL CONTENT
[0004] The utility model aims to provide a kind of gas water heater with drying function, which can not only meet the demand of hot water supply, but also realize effective drying of goods by utilizing the heat generated during operation.
[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions:
[0006] A kind of gas water heater with drying function, comprising a housing and a combustion heat exchange mechanism and a drying mechanism arranged in the housing;The combustion heat exchange mechanism is provided with an exhaust pipe;The drying mechanism includes an air duct and a fan arranged in the air duct;The exhaust pipe is arranged in the air duct, and the housing is provided with a hot air outlet corresponding to the air outlet of the air duct.
[0007] According to one embodiment of the utility model, a heating device is arranged in the air duct.
[0008] According to one embodiment of the utility model, the heating device is a PTC heater.
[0009] According to one embodiment of the utility model, the exhaust pipe is provided with heat exchange fins, and the heat exchange fins are located in the air duct.
[0010] According to one embodiment of the utility model, the air outlet of the air duct is connected to a horizontal drying pipe, and the outer wall of the drying pipe is provided with a plurality of drying holes.
[0011] According to one embodiment of the utility model, the hot air outlet is arranged at the bottom of the housing, and the bottom of the housing is provided with a hanger corresponding to the position of the hot air outlet.
[0012] According to one embodiment of the utility model, the housing is in the shape of a rectangular parallelepiped, and the horizontal dimension of the housing is greater than the vertical dimension.
[0013] According to one embodiment of the present invention, the bottom of the outer casing is provided with a hot water pipe, a cold water pipe and a gas pipe, and the bottom of the outer side of the outer casing is provided with a display control board, which covers the hot water pipe, the cold water pipe and the gas pipe.
[0014] According to one embodiment of the present invention, the top of the outer shell is provided with a drying air inlet and a combustion air inlet.
[0015] According to one embodiment of the present invention, a guide plate is provided inside the hot air outlet.
[0016] Compared with the prior art, the advantages and beneficial effects of the embodiments of this utility model are as follows:
[0017] The gas water heater with drying function provided in this embodiment of the invention not only meets the demand for hot water supply but also effectively dries items using the heat generated during operation, satisfying diverse user needs, improving energy efficiency, and reducing energy waste. The gas water heater provided by this invention adopts an integrated design, combining the drying function with the gas water heater function, resulting in a compact structure that avoids the need for users to install multiple devices, thus reducing operating costs. Attached Figure Description
[0018] The accompanying drawings, which form part of this specification, are used to provide a further understanding of this utility model. The illustrative embodiments of this utility model and their descriptions are used to explain this utility model and do not constitute an undue limitation of this utility model. Wherein:
[0019] Figure 1 This is a schematic diagram of the internal structure of a gas water heater with drying function provided in an embodiment of the present utility model;
[0020] Figure 2 A front view of a gas water heater with drying function provided in an embodiment of this utility model;
[0021] Figure 3 A perspective view of a gas water heater with drying function provided for an embodiment of this utility model;
[0022] Figure 4 A side view of a gas water heater with drying function provided in an embodiment of this utility model;
[0023] Figure 5 A top view of a gas water heater with drying function provided in an embodiment of this utility model;
[0024] Figure 6 A bottom view of a gas water heater with drying function provided in an embodiment of this utility model;
[0025] Figure 7Another perspective view of the gas water heater with drying function provided by the embodiment of the present utility model;
[0026] Figure 8 The installation structure schematic diagram of the gas water heater with drying function provided by the embodiment of the present utility model.
[0027] Mark explanation:
[0028] 1, shell; 11, hot air port; 12, drying air inlet hole; 13, combustion air inlet hole; 14, display control panel; 2, combustion heat exchange mechanism; 21, smoke exhaust pipe; 22, heat exchange fin; 3, drying mechanism; 31, air duct; 32, fan; 33, heating device; 34, drying pipe; 4, hanger; 5, hot water pipe; 6, cold water pipe; 7, gas pipe; 8, washing machine; 9, hanging cabinet. Specific implementation
[0029] The present utility model will be described in detail below with reference to the drawings and in combination with embodiments. Each example is provided by way of explanation of the present utility model rather than limiting the present utility model. In fact, those skilled in the art will appreciate that modifications and variations can be made in the present utility model without departing from the scope or spirit of the present utility model. For example, features shown as or described as part of one embodiment can be used in another embodiment to produce yet another embodiment. Therefore, it is intended that the present utility model encompass such modifications and variations as fall within the scope of the appended claims and their equivalents.
[0030] In the description of the present utility model, "first", "second" and similar words do not represent any order, quantity or importance, but are only used to distinguish different components, "include" or "contain" and similar words mean that the elements or objects appearing before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects, and the orientations or positional relationships indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and do not require the present utility model to be constructed and operated in a particular orientation, so they cannot be understood as limiting the present utility model. The terms "connected", "connected", "provided" used in the present utility model should be understood broadly, for example, it can be fixed connection, or detachable connection; it can be directly connected, or indirectly connected through intermediate components; it can be wired electrical connection, wireless electrical connection, or wireless communication signal connection, and those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.
[0031] As Figures 1-4 ,Figures 6-7 As shown, this utility model embodiment provides a gas water heater with a drying function, including a shell 1 and a combustion heat exchange mechanism 2 and a drying mechanism 3 disposed within the shell 1. The combustion heat exchange mechanism 2 is a conventional combustion heat exchange mechanism for gas water heaters, including a burner and a heat exchanger, etc., which is prior art and will not be described in detail. The combustion heat exchange mechanism 2 is provided with a flue pipe 21 for discharging flue gas and waste heat generated during gas combustion. The drying mechanism 3 includes an air duct 31 and a fan 32 disposed within the air duct 31. Under the action of the fan 32, air enters at one end of the air duct 31 and exits at the other end. In this embodiment, air enters at the upper end of the air duct 31 and exits at the lower end. The flue pipe 21 passes through the air duct 31, and the shell 1 is provided with a hot air outlet 11 corresponding to the air outlet of the air duct 31.
[0032] like Figure 1 , Figure 3 As shown in the figure, the gas water heater with drying function provided in this embodiment of the present invention discharges the flue gas and waste heat generated during gas combustion to the outside through the flue pipe 21. During this process, since the flue pipe 21 passes through the air duct 31, it can heat the air in the air duct 31. The heated air is drawn in by the fan 32 and blown out from the air outlet of the air duct 31, and then blown out from the hot air outlet 11 of the outer casing 1 to dry external items, such as towels and clothes. The gas water heater with drying function provided by the present invention can not only meet the demand for hot water supply, but also effectively dry items by utilizing the heat generated during operation, meeting the diverse needs of users, improving energy utilization efficiency, and reducing energy waste. The gas water heater provided by the present invention adopts an integrated design, integrating the drying function with the gas water heater function, with a compact structure, avoiding the need for users to install multiple devices and reducing operating costs.
[0033] like Figure 1 As shown, in order to actively dry external items, rather than only achieving the drying function when the gas water heater is running, a heating device 33 is installed inside the air duct 31. Activating the heating device 33 heats the air inside the air duct 31. The heated air is drawn in by the fan 32 and blown out from the air outlet of the air duct 31, and then blown out from the hot air vent 11 of the outer casing 1, thus drying the external items. In one embodiment of this utility model, the heating device 33 is a PTC heater. The PTC heater consists of multiple PTC thermistors arranged in an array, which can rapidly heat up in a short time. PTC thermistors have a positive temperature coefficient characteristic; when the temperature rises to a certain level, the resistance value automatically increases, thereby limiting the current flow and achieving automatic temperature control, ensuring temperature stability and safety during the drying process. The fan 32 in this embodiment of the utility model is a centrifugal fan, which can ensure stable operation at high speeds.
[0034] As Figure 1 shown, in order to improve the heat exchange efficiency, make full use of the waste heat in the exhaust pipe 21, the exhaust pipe 21 is provided with a heat exchange fin 22, which is located in the air duct 31. The heat exchange fin 22 is provided with a plurality of layers of fin heat exchange structure. When the exhaust gas generated by combustion is discharged through the exhaust pipe 21, the heat carried by the exhaust gas is transferred to the fins of the heat exchanger, and the residual waste heat in the exhaust gas is recovered by heat exchange, and is transferred to the drying mechanism 3 to provide an additional heat source for drying, realizing energy secondary utilization and improving the energy utilization rate of the gas water heater.
[0035] As Figure 1 shown, in order to realize uniform air outlet at the hot air outlet 11, in an embodiment of the present application, the air outlet of the air duct 31 is connected with a horizontal drying pipe 34, the outer wall of the drying pipe 34 is provided with a plurality of drying holes, and the hot air is blown out of the plurality of drying holes, so that the hot air outlet is uniform and the drying effect is improved. The drying pipe 34 adopts a streamline design to reduce the resistance and turbulence of the hot air in the conveying process. The wall of the drying pipe 34 is made of heat insulating material to reduce heat loss and improve thermal efficiency. The drying pipe 34 is provided with a temperature sensor and a wind speed sensor to monitor the temperature and wind speed of the hot air in real time and feed back the data to the control system. The control system adjusts the speed of the fan 32 and the power of the heating device 33 according to the sensor feedback data to ensure that the hot air always maintains within the set temperature and wind speed range, realizing stable and efficient drying effect.
[0036] As Figures 1-4 , Figures 6-7 shown, in an embodiment of the present application, the hot air outlet 11 is arranged at the bottom of the shell 1, and the bottom of the shell 1 is provided with a hanger 4 corresponding to the position of the hot air outlet 11. The articles to be dried, such as towels and clothes, can be hung on the hanger 4 and dried by the hot air blown out of the hot air outlet 11. The hanger 4 can be made of metal, and the shape of the hanger 4 is designed according to the clothes hanging mode, so that it has sufficient width and length and can accommodate a plurality of small clothes at the same time. The opening direction of the hot air outlet 11 is towards the hanger 4 to ensure that the hot air can cover the clothes at the best angle. At the same time, the hot air outlet 11 can be provided with a guide plate (not shown) with adjustable wind direction to adjust the flow direction of the hot air and realize more uniform drying effect.
[0037] As Figure 3 , Figure 5 shown, in an embodiment of the present application, the top of the shell 1 is provided with a drying air inlet hole 12 and a combustion air inlet hole 13.
[0038] In the gas water heater, it is necessary to set hot water pipe, cold water pipe and gas pipe, in an embodiment of the utility model, the hot water pipe 5, cold water pipe 6 and gas pipe 7 are arranged at the bottom of the shell 1. Figure 1 、 Figure 2 、 Figure 4 As shown in the utility model discloses a display control panel 14 is arranged at the bottom of the outer side of the shell 1, the display control panel 14 shields the hot water pipe 5, the cold water pipe 6 and the gas pipe 7. The display control panel 14 can not only facilitate user operation gas water heater and display the state of gas water heater, but also can shield the hot water pipe 5, cold water pipe 6 and gas pipe 7 and other pipe fittings, improve the appearance effect of gas water heater. In addition to the traditional gas water heater control and display, the display control panel 14 adds active drying and automatic drying functions, and can set drying time and drying mode. The active drying and automatic drying function process is as follows:
[0039] Active drying process: when selecting the active drying mode, the heating device 33 in the air duct 31 starts heating, and the fan 32 starts. Air enters from the drying air inlet hole 12, and under the action of the fan 32, it is heated into hot air by the heating device 33, and the hot air flows to the drying pipe 34 through the air duct 31, and then flows out of the hot air outlet 11. The hot air blown out of the hot air outlet 11 dries the clothes hung on the hanger 4. The user can set the drying time and other parameters according to the material and humidity of the clothes through the display control panel 14. Specifically, after the user selects the active drying mode on the display control panel 14, the system first performs initialization self-checking on the heating device 33 and the fan 32. After self-checking is completed, the heating device 33 starts to heat according to the temperature parameter preset by the user or the standard temperature parameter of the system by default. During the heating process, the temperature sensor monitors the temperature of the heating device 33 in real time, and when it reaches about 90% of the set temperature, the fan 32 starts to run at a low speed, so that the air flows slowly through the heating device 33 and is heated. With the further stabilization of the temperature, the fan 32 gradually increases the speed to the normal drying speed. When the hot air flows in the air duct 31, the air speed sensor and the temperature sensor in the air duct 31 continuously feed back data to the control system. If it is detected that the local temperature is too high or the air speed is too low, the control system will adjust the speed of the fan 32 or the power of the heating device 33 to ensure that the hot air blows evenly and stably to the clothes on the hanger 4. The user can conveniently adjust the drying temperature (which can be adjusted in the range of 30-80 DEG C at intervals of 5 DEG C), drying time (which can be adjusted in the range of 15-120 minutes at intervals of 15 minutes) and air speed (low, medium and high three gears) and other parameters through the display control panel 13 to adapt to the drying needs of clothes of different materials (such as cotton, hemp, chemical fiber, etc.) and quantities.
[0040] Automatic drying process: when hot water is used, gas is burned in the combustion heat exchange mechanism 2 to generate heat for heating water (cold water enters from the cold water pipe 6 and hot water flows out from the hot water pipe 5). The exhaust gas generated by combustion is discharged through the exhaust pipe 21, and the heat exchange fin 22 collects the residual waste heat of the exhaust gas in the exhaust pipe 21 to heat the air in the air duct 31. The fan 32 delivers the heated air to the drying pipe 34, and finally blows out from the hot air outlet 11 to automatically dry the clothes on the lower hanging rack 4. This process does not require additional user intervention and is activated every time hot water is used. The automatic drying mode can be started and stopped by the display control panel 14, and the start and stop times can also be set. Specifically, in the automatic drying mode, when the gas water heater starts to use hot water, the control system will activate the heat exchange fin 22 at the same time. The exhaust gas generated by combustion starts to be discharged through the exhaust pipe 21, and the heat exchange fin 22 immediately starts to work to collect the residual waste heat of the exhaust gas. At the same time, the fan 32 starts to operate at a low speed, and the hot air generated by the waste heat is blown to the lower hanging rack 4 through the hot air outlet 11. In this process, the temperature sensor monitors the hot air temperature, and if the hot air temperature generated by the waste heat is lower than the set minimum drying temperature (such as 30℃), the heating device 33 will automatically start auxiliary heating to ensure that the drying temperature meets the requirements. When the gas water heater stops using hot water, the fan 32 and the heating device 33 will continue to operate for a period of time (the time can be automatically adjusted according to the humidity of the clothes and the drying temperature, etc., generally within 5-20 minutes) according to the drying degree of the clothes, to ensure that the clothes are fully dried. This automatic drying mode makes full use of the waste heat generated during the use of the gas water heater, without the need for additional user operation, achieving energy saving and convenience.
[0041] In today's pursuit of high-quality home environment, users have increasingly high requirements for the integration of home appliances and home environment. The current traditional gas water heater cannot be integrated into the overall home environment in terms of shape and proportion, and the device feels too heavy, and it is not combined with the actual installation scene in terms of functional attributes and spatial form adaptation. There are many installation scenes for gas water heaters, and balcony scene is one of them. Drying clothes is the most common use of balcony, but it is very difficult to dry clothes naturally on rainy days, and there may be mold odor and other problems. At present, there is a lack of products specially designed for the characteristics of balcony scene for gas water heaters, and the design and installation position does not consider the combination with the function of drying clothes on the balcony. Figure 8As shown, the gas water heater with the drying function can be installed on the balcony, and clothes can be dried by using the drying function. Further, in order to adapt to the space of the balcony, the shell 1 is transversely arranged, and the transverse dimension of the shell 1 is greater than the vertical dimension. The gas water heater can be installed between the washing machine 8 and the hanging cabinet 9 of the balcony, and the space of the balcony is fully utilized without occupying additional space. The gas water heater with the drying function is designed to have a transverse long strip shape, and the length, width and thickness proportion are coordinated to adapt to the specific environment of the balcony, to be integrated into the balcony home environment, and to match the clothes hanger storage and the drying function of small clothes, so that the gas water heater is more suitable for the balcony environment in terms of space form and function. When installed, the distance between the washing machine 8 and the hanging cabinet 9 of the balcony is designed: the top of the washing machine 8 is kept at a proper distance, the user can conveniently hang and take clothes, and the installation position below the hanging cabinet 9 is compact and reasonable, the idle space below the hanging cabinet 8 is fully utilized, the overall appearance is guaranteed, the balcony space is regular and orderly.
[0042] The preferred embodiments of the utility model are described above, and the utility model is not limited to the above. Those skilled in the art can make various changes and modifications to the utility model. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.
Claims
1. A gas water heater with a drying function, characterized in that, It includes an outer shell (1) and a combustion heat exchange mechanism (2) and a drying mechanism (3) disposed within the outer shell (1); the combustion heat exchange mechanism (2) is provided with a flue pipe (21); the drying mechanism (3) includes an air duct (31) and a fan (32) disposed within the air duct (31); the flue pipe (21) passes through the air duct (31), and the outer shell (1) is provided with a hot air outlet (11) corresponding to the air outlet of the air duct (31).
2. The gas water heater with drying function according to claim 1, characterized in that, A heating device (33) is provided inside the air duct (31).
3. The gas water heater with drying function according to claim 2, characterized in that, The heating device (33) is a PTC heater.
4. The gas water heater with drying function as claimed in claim 1, 2 or 3, characterized in that, The exhaust pipe (21) is provided with heat exchange plates (22) on its outer periphery, and the heat exchange plates (22) are located inside the air duct (31).
5. The gas water heater with drying function according to claim 1, 2 or 3, characterized in that, The air outlet of the air duct (31) is connected to a horizontal drying pipe (34), and the outer wall of the drying pipe (34) is provided with multiple drying holes.
6. The gas water heater with drying function according to claim 1, 2 or 3, characterized in that, The hot air vent (11) is located at the bottom of the outer casing (1), and the bottom of the outer casing (1) is provided with a bracket (4) corresponding to the position of the hot air vent (11).
7. The gas water heater with drying function according to claim 6, characterized in that, The outer shell (1) is arranged horizontally, and the horizontal dimension of the outer shell (1) is greater than the vertical dimension.
8. The gas water heater with drying function according to claim 1, 2 or 3, characterized in that, The bottom of the outer casing (1) is provided with a hot water pipe (5), a cold water pipe (6) and a gas pipe (7). The bottom of the outer side of the outer casing (1) is provided with a display control board (14), which covers the hot water pipe (5), the cold water pipe (6) and the gas pipe (7).
9. The gas water heater with drying function according to claim 1, 2 or 3, characterized in that, The top of the outer casing (1) is provided with a drying air inlet (12) and a combustion air inlet (13).
10. The gas water heater with drying function according to claim 1, 2 or 3, characterized in that, The hot air inlet (11) is equipped with a guide plate.