Gas water heater with air cooling function

Abstract

The utility model relates to the technical field of hot water supply equipment, and discloses a gas water heater with a cold air function. The gas water heater with the cold air function comprises a machine shell, a water inlet pipe, a heat exchanger and a cold air heat exchanger, the water inlet pipe, the heat exchanger and the cold air heat exchanger are arranged in the machine shell, one end of the water inlet pipe is provided with a cold water inlet, and the other end of the water inlet pipe is communicated with the heat exchanger. The water inlet pipe partially extends into the shell to form a cold air heat exchange pipe, and the shell is provided with a first air inlet, a first cold air outlet and an air flow channel located between the first air inlet and the first cold air outlet. The cold air heat exchanger is integrated on the gas water heater, hot air is subjected to heat exchange to form cold air through the cold air heat exchange pipe formed by the water inlet pipe, additional refrigeration equipment is not needed, the single equipment can meet the dual requirements of hot water supply and kitchen cooling at the same time, the kitchen space is fully utilized while cold air output is achieved, and the energy-saving and environment-friendly effects are achieved. The installation is convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of hot water supply equipment, in particular to a gas water heater with a cool air function. Background Art

[0002] Gas hot water equipment is a device that uses gas as an energy source to heat water. Gas hot water equipment is widely used in household, commercial and industrial fields for hot water supply. Common types of gas hot water equipment include gas water heaters, gas wall-hung boilers, etc.

[0003] In the prior art, the high temperature problem in the kitchen in summer has become increasingly prominent, especially during the cooking process. To address this challenge, various kitchen refrigeration solutions have emerged on the market. However, although traditional wall-mounted air conditioners or dedicated kitchen air conditioners have good refrigeration effects, they occupy kitchen space and may also affect the overall aesthetics and usage efficiency of the kitchen. In contrast, some new kitchen refrigeration products, such as kitchen coolers, although they have advantages in terms of space occupation and can save space, the blowing temperature is actually still hot air, and the refrigeration effect is not ideal, making it difficult to meet the needs of users for cooking in a high-temperature environment. Therefore, current kitchen refrigeration products often have difficulty in providing good refrigeration while minimizing the installation space requirements. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide a gas water heater with a cool air function, which effectively solves the limitations of kitchen refrigeration products, integrates a cold air heat exchanger on the gas water heater, realizes the output of cold air while making full use of the kitchen space, and is convenient to install.

[0005] The above technical problem is solved by the following technical solutions:

[0006] A gas water heater with a cool air function, comprising:

[0007] A casing and a water inlet pipe, a heat exchanger and a cold air heat exchanger arranged in the casing. One end of the water inlet pipe is provided with a cold water inlet, and the other end is communicated with the heat exchanger. A water pump is arranged on the pipeline of the water inlet pipe between the cold air heat exchanger and the heat exchanger. The cold air heat exchanger includes a casing and cold air heat exchange pipes and a cold air fan arranged in the casing. A part of the water inlet pipe extends into the casing to form the cold air heat exchange pipes. The casing is provided with a first air inlet, a first cold air outlet and an air flow passage located between the first air inlet and the first cold air outlet. The cold air heat exchange pipes and the cold air fan are located in the air flow passage. The casing is provided with a second air inlet corresponding to the first air inlet and a second cold air outlet corresponding to the first cold air outlet.

[0008] Compared with the background technology, the gas water heater with cool air function described in the utility model has the following beneficial effects: when the user turns on the cool air function, the cold air fan starts to operate, and the hot air in the kitchen is sucked into the first air inlet from the second air inlet through the cold air fan, and then the hot air enters the air flow channel of the cold air heat exchanger. Since a cold air heat exchange pipe formed by a water inlet pipe part is provided in the air flow channel, the air temperature in the air flow channel is lowered by low-temperature tap water inside the cold air heat exchange pipe, so that the hot air in the air flow channel is converted into cold air after heat exchange through the cold air heat exchange pipe, and the cold air in the air flow channel is blown out from the first cold air outlet by the cold air fan, and then the cold air is blown out from the second cold air outlet toward the user. In high temperatures in summer, the cool air function can effectively reduce the temperature in the kitchen.

[0009] To summarize, the cold air heat exchanger is integrated into the gas water heater, and the hot air is exchanged into cold air through the cold air heat exchange tube formed by the water inlet pipe. There is no need to set up additional refrigeration equipment, so that a single device can meet the dual needs of hot water supply and kitchen cooling at the same time, realize cold air output while making full use of the kitchen space, and is easy to install.

[0010] In one of the embodiments, the cold air heat exchange pipe is arranged in a circuitous manner along the length direction of the air flow channel.

[0011] In one of the embodiments, a wind direction adjusting blade is provided at the second cold air outlet.

[0012] In one embodiment, the first air inlet is arranged at the lower end of the shell, the first cold air outlet is arranged at the upper end of the shell, the cold air blower is arranged on one side of the air flow channel close to the first air inlet, and the cold air heat exchange pipe is arranged between the cold air blower and the first cold air outlet.

[0013] In one of the embodiments, a controller is further included, which is electrically connected to the cold air blower and the water pump respectively, and is used to control the cold air blower to turn on according to a cool air start signal, and control the water pump to turn on for a preset time interval and then turn off after a set time.

[0014] In one of the embodiments, a temperature sensor is further included, wherein the temperature sensor is used to detect the temperature of the cold air heat exchange pipe. The controller is electrically connected to the temperature sensor, and is used to control the cold air blower to turn on according to a cool air start signal, and to control the water pump to turn off after running for a set period of time according to the temperature value detected by the temperature sensor reaching a preset temperature value.

[0015] In one embodiment, it further includes a branch pipe connected in parallel with the water inlet pipe. The branch pipe is arranged inside the casing. The upper end of the branch pipe is communicated with the water inlet pipe located between the water pump and the heat exchanger. The lower end of the branch pipe is communicated with the cold water inlet of the water inlet pipe. An electric control switch valve is arranged on the branch pipe.

[0016] It further includes a controller. The electric control switch valve is electrically connected with the controller. Based on the opening signal of the cold air blower, the controller controls the opening of the electric control switch valve and the water pump based on the opening of the cold air blower.

[0017] In one embodiment, it further includes a first one-way valve. The first one-way valve is arranged on the branch pipe. The inlet of the first one-way valve is communicated with the upper end of the branch pipe. The outlet of the first one-way valve is communicated with the lower end of the branch pipe.

[0018] In one embodiment, it further includes a cold water tank and a semiconductor refrigeration module arranged on the cold water tank. The cold water inlet is arranged at the lower end of the cold water tank and is communicated with the cold water tank. The lower end of the cold air heat exchange pipe is communicated with the upper end of the cold water tank. The lower end of the branch pipe is communicated with the lower end of the cold water tank.

[0019] In one embodiment, it further includes at least one filter element. The filter element is arranged at the first air inlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic structural diagram of a gas water heater with a cold air function according to an embodiment of the present invention;

[0022] Figure 2 It is a schematic structural principle diagram of a gas water heater with a cold air function according to an embodiment of the present invention;

[0023] Figure 3 It is a schematic flow diagram of a gas water heater with a cold air function according to an embodiment of the present invention;

[0024] Figure 4 It is a schematic structural diagram of another gas water heater with a cold air function according to an embodiment of the present invention;

[0025] Figure 5Schematic diagram of the structural principle of another gas water heater with a cool air function according to an embodiment of the present utility model;

[0026] Figure 6 Flow chart of another gas water heater with a cool air function according to an embodiment of the present utility model.

[0027] Explanation of reference numerals:

[0028] 1. Cabinet; 2. Heat exchanger; 3. Water inlet pipe; 301. Cold water inlet; 4. Water pump; 5. Cold air heat exchanger; 501. Housing; 5011. Air flow channel; 502. First air inlet; 503. First cold air outlet; 504. Cold air blower; 505. Cold air heat exchange tube; 6. Controller; 7. Branch pipe; 8. Electric control switch valve; 9. First check valve; 10. Cold water tank; 11. Semiconductor refrigeration module; 12. Filter element; 13. Water inlet temperature sensor; 14. Water outlet temperature sensor; 15. Flow sensor; 16. Second check valve; 17. Water outlet pipe. Detailed implementation mode

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.

[0030] In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present application 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, and therefore should not be construed as a limitation to the present application.

[0031] The terms "first" and "second" are only used for descriptive purposes, and cannot be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present application, unless otherwise specified, the meaning of "plurality" is two or more.

[0032] In the description of the present application, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0033] In the related art, the high-temperature problem in the summer kitchen has become increasingly prominent, especially during the cooking process. To address this challenge, various kitchen refrigeration solutions have emerged in the market. However, although traditional wall-mounted air conditioners or dedicated kitchen air conditioners have good refrigeration effects, they occupy kitchen space and may also affect the overall aesthetics and usage efficiency of the kitchen. In contrast, some new kitchen refrigeration products, such as kitchen coolers, although they have advantages in terms of space occupation and can save space, the blown air is actually hot air, and the refrigeration effect is not ideal, making it difficult to meet the needs of users for cooking in a high-temperature environment. Therefore, current kitchen refrigeration products often have difficulty in providing good refrigeration while minimizing the installation space requirements.

[0034] To solve the above problems, the embodiments of the present utility model will be described below in conjunction with Figures 1 to 6 ,

[0035] According to an embodiment of the present utility model, on the one hand, as Figures 1 to 6 shown, a gas water heater with a cool air function is provided, which includes a housing 1, a water inlet pipe 3, a heat exchanger 2, and a cold air heat exchanger 5.

[0036] Specifically, as Figure 1 and Figure 2 shown, the water inlet pipe 3, the heat exchanger 2, and the cold air heat exchanger 5 are arranged inside the housing 1. Among them, one end of the water inlet pipe 3 is provided with a cold water inlet 301, and the other end of the water inlet pipe 3 is communicated with the heat exchanger 2.

[0037] Specifically, as Figure 1 and Figure 2 shown, a water pump 4 is provided on the water inlet pipe 3, and the water pump 4 is located on the water inlet pipe 3 between the cold air heat exchanger 5 and the heat exchanger 2.

[0038] Specifically, as Figure 1 and Figure 2 shown, the cold air heat exchanger 5 includes a housing 501, cold air heat exchange tubes 505, and a cold air fan 504. Among them, the cold air heat exchange tubes 505 and the cold air fan 504 are arranged inside the housing 501, and a part of the water inlet pipe 3 extends into the housing 501 to form the cold air heat exchange tubes 505.

[0039] Specifically, asFigure 1 and Figure 2 As shown, there is an air flow channel 5011 left inside the housing 501. A first air inlet 502 and a first cold air outlet 503 that are communicated with the air flow channel 5011 are provided on the housing 501. The cold air heat exchange tube 505 and the cold air fan 504 are installed in the air flow channel 5011.

[0040] Specifically, as Figure 1 and Figure 2 shown, a second air inlet (not shown in the figure) is provided on the casing 1 corresponding to the first air inlet 502, and a second cold air outlet (not shown in the figure) is provided on the casing 1 corresponding to the first cold air outlet 503.

[0041] For this gas water heater with a cold air function, when the user turns on the cold air function, the cold air fan 504 starts to operate. The hot air in the kitchen is sucked from the second air inlet to the first air inlet 502 through the cold air fan 504, and then the hot air enters the air flow channel 5011 of the cold air heat exchanger 5. Since the cold air heat exchange tube 505 formed by a part of the water inlet pipe 3 is provided in the air flow channel 5011, the low-temperature tap water inside the cold air heat exchange tube 505 is used to reduce the air temperature in the air flow channel 5011, so that the hot air in the air flow channel 5011 becomes cold air after heat exchange through the cold air heat exchange tube 505. The cold air in the air flow channel 5011 is blown out from the first cold air outlet 503 by the cold air fan 504, and then the cold air is blown out from the second cold air outlet towards the user direction. In summer at high temperatures, the cold air function can effectively reduce the kitchen temperature.

[0042] In summary, by integrating the cold air heat exchanger 5 on the gas water heater, the hot air is heat-exchanged into cold air through the cold air heat exchange tube 505 formed by the water inlet pipe 3. There is no need to set up additional refrigeration equipment, so that a single device can simultaneously meet the dual needs of hot water supply and kitchen cooling, realize cold air output while making full use of the kitchen space, and is convenient to install.

[0043] Specifically, the cold air fan 504 can promote the air flow in the air flow channel 5011, accelerate the heat exchange process, improve the cooling efficiency, and ensure the rapid cooling of the kitchen environment. Among them, the cold air fan 504 can be an axial flow fan, a centrifugal fan, etc. In the embodiment of the present application, the type of the cold air fan 504 is not specifically limited.

[0044] Specifically, the cold air fan 504 can be provided with multiple adjustment gears to facilitate the user to adjust the wind speed according to personal needs.

[0045] Specifically, a second air inlet and a second cold air outlet are provided on the casing 1, ensuring that external air can smoothly enter and, after being cooled, is discharged back to the kitchen again. The positions of the second air inlet and the second cold air outlet can correspond to the positions of the first air inlet 502 and the first cold air outlet 503 respectively. Similarly, the second air inlet and the second cold air outlet can be set in any existing shape. In the embodiments of the present application, the shapes and positions of the second air inlet and the second cold air outlet are not specifically limited.

[0046] It should be noted that when using the gas water heater, the hot water supply function or the cool air function of the gas water heater can be used alone, or the hot water supply function and the cool air function can be used simultaneously.

[0047] Specifically, the first air inlet 502 and the first cold air outlet 503 can be set in any existing shape. For example, both of them can be set as square holes, circular holes, triangular holes, etc. Similarly, the first air inlet 502 and the first cold air outlet 503 can be set at any position on the housing 501. In the embodiments of the present application, the shapes and positions of the first air inlet 502 and the first cold air outlet 503 are not specifically limited.

[0048] In one embodiment, as Figure 1 and Figure 2 shown, the cold air heat exchange tube 505 is arranged in a meandering and bending manner along the length direction of the air flow channel 5011.

[0049] By bending the cold air heat exchange tube 505, the contact area between the cold air heat exchange tube 505 and the hot air in the air flow channel 5011 can be significantly increased. More contact area means that the hot air in the air flow channel 5011 has more opportunities to exchange heat with the low-temperature tap water in the cold air heat exchange tube 505, thereby improving the heat exchange efficiency. At the same time, the meandering and bending heat exchange tube can cause the air flow path in the air flow channel 5011 to change, forming a turbulent flow, which helps to break the air laminar flow and promote the turbulent heat exchange between the air and the surface of the cold air heat exchange tube 505, further improving the heat exchange efficiency.

[0050] Specifically, as Figure 1 and Figure 2 shown, the meandering and bending cold air heat exchange tube 505 can be formed by sequentially connecting a plurality of "U" - shaped tubes end to end. The cold air heat exchange tube 505 can also be set in a spiral tube type or a corrugated tube type, etc. In the embodiments of the present application, the structure of the cold air heat exchange tube 505 is not specifically limited.

[0051] In one embodiment, a wind direction adjusting vane (not shown in the figure) is provided at the second cold air outlet.

[0052] At the second cold air outlet, wind direction adjustment vanes are provided. By adjusting the angle of the wind direction adjustment vanes, the blowing direction of the cold air can be adjusted, enabling the user to direct the cold air to a specific area according to personal preferences or the needs of the kitchen layout, achieving directional air supply. Directional air supply can reduce unnecessary waste of cold air, ensure that the cold air blows towards the area that needs to be cooled, thereby improving energy utilization efficiency, reducing energy consumption, and achieving the energy-saving goal.

[0053] Specifically, the wind direction adjustment vanes can be arranged in a louvered, rotary or inclined manner, etc. In the embodiments of the present application, the type of the wind direction adjustment vanes is not specifically limited.

[0054] Exemplarily, taking the louvered type as an example, the louvered wind direction adjustment vanes are arranged at the second cold air outlet, and the user changes the wind direction by adjusting the angle of the vanes.

[0055] In one embodiment, as Figure 1 and Figure 2 shown, the first air inlet 502 is arranged at the lower end of the housing 501, and the first cold air outlet 503 is arranged at the upper end of the housing 501. The cold air blower 504 is located on one side of the air flow channel 5011 close to the first air inlet 502, and the cold air heat exchange tube 505 is located between the cold air blower 504 and the first cold air outlet 503.

[0056] Since hot air is lighter than cold air, it will naturally rise, while cold air will sink. Therefore, arranging the first air inlet 502 at the lower end can utilize the principle of natural convection, making it easier to inhale hot air, and the cold air naturally flows out from the first cold air outlet 503 at the upper end, improving the efficiency of air circulation.

[0057] Arranging the cold air blower 504 at the first air inlet 502 of the air flow channel 5011 can immediately inhale hot air and push the hot air through the cold air heat exchange tube 505, which helps to accelerate the heat exchange speed, ensure that the hot air is in full contact with the low-temperature tap water in the cold air heat exchange tube 505, and improve the cooling efficiency.

[0058] Arranging the cold air heat exchange tube 505 between the cold air blower 504 and the first cold air outlet 503 enables the hot air to be evenly cooled when flowing through the cold air heat exchange tube 505, avoiding local overcooling or overheating, ensuring that the air temperature coming out of the first cold air outlet 503 is uniform, and improving the comfort level. At the same time, this layout design makes the structure of the cold air heat exchanger 5 more compact, reducing the space occupied inside the housing 1.

[0059] Exemplarily, the first air inlet 502 can be arranged on the bottom wall or side wall at the lower end of the housing 501, and the first cold air outlet 503 can be arranged on the side wall at the upper end of the housing 501.

[0060] In one embodiment, asFigure 1 and Figure 2 As shown in Figure 2 , it further includes a controller 6. The controller 6 is electrically connected to the cold air blower 504 and the water pump 4 respectively, and is used to control the cold air blower 504 to turn on according to the cold air opening signal, and control the water pump 4 to turn on for a set duration at intervals of a preset time and then turn off.

[0061] The controller 6 can automatically control the operation of the water pump 4 according to a preset program or a user's instruction, without manual operation, improving the automation degree of the system, simplifying the user operation, and enhancing the user experience. For example, when the gas water heater only provides the hot water supply function, the controller 6 controls the water pump 4 to turn on. The water pump 4 transports the tap water in the water inlet pipe 3 to the heat exchanger 2, and after being heated by the heat exchanger 2, the hot water is transported to the water outlet pipe 17. When the gas water heater only provides the cold air function, since the tap water in the cold air heat exchange pipe 505 is gradually heated after being heat-exchanged by the hot air, the controller 6 can control the water pump 4 to turn on for a set duration at intervals of a preset time and then turn off, and transport the tap water in the cold air heat exchange pipe 505 to the heat exchanger 2. At this time, the controller 6 can control the heat exchanger 2 to be in the off state, ensuring that the tap water in the cold air heat exchange pipe 505 maintains a low temperature, improving the heat exchange efficiency, and ensuring the stability and effect of the cold air function.

[0062] Specifically, the controller 6 can be an existing controller 6 such as a PLC (programmable logic controller 6), a microcontroller 6, or a computer control system. The controller 6 can also be the self-control device of the gas water heater. In the embodiment of the present application, the type of the controller 6 is not specifically limited.

[0063] In one embodiment, as Figure 1 and Figure 2 shown, it further includes a temperature sensor. The temperature sensor is used to detect the temperature of the cold air heat exchange pipe 505. The controller 6 is electrically connected to the temperature sensor. The controller 6 controls the cold air blower 504 to turn on according to the cold air opening signal. The temperature sensor transmits the detected temperature value to the controller 6. When the received temperature value reaches the preset temperature value, the controller 6 controls the water pump 4 to operate for a set duration and then turn off.

[0064] The temperature sensor can monitor the temperature of the cold air heat exchange pipe 505 in real time, ensuring that the cold air function works within a preset temperature range, improving the accuracy of temperature control, and ensuring the stability and comfort of the cold air effect.

[0065] The controller 6 starts the cold air blower 504 according to the received cool air start signal. When the temperature detected by the temperature sensor reaches the preset value, the controller 6 automatically controls the water pump 4 to run for a set duration and then turn off, so that the heated tap water in the cold air heat exchange tube 505 is sent out, and new low-temperature tap water is conveyed to the cold air heat exchange tube 505 to continue heat exchange, realizing the intelligent start and stop of the equipment and avoiding the situations of insufficient refrigeration and waste of water resources.

[0066] Specifically, the temperature sensor can be a resistance temperature detector, a thermocouple or a thermistor, etc. In the embodiments of the present application, the type of the temperature sensor is not specifically limited.

[0067] Specifically, the temperature sensor can be arranged on the cold air heat exchange tube 505 or in the air flow channel 5011. In the embodiments of the present application, the position of the temperature sensor is not specifically limited.

[0068] Specifically, the controller 6 can also control the running time of the water pump 4 according to the running time of the cold air blower 504. For example, when the blower works for 10 minutes, the water pump 4 runs for 10 seconds and then turns off.

[0069] In one embodiment, as Figure 4 and Figure 5 shown, it further includes a branch pipe 7 connected in parallel with the water inlet pipe 3. The branch pipe 7 is arranged inside the housing 1. The upper end of the branch pipe 7 is communicated with the water inlet pipe 3 located between the water pump 4 and the heat exchanger 2. The lower end of the branch pipe 7 is communicated with the cold water inlet 301 of the water inlet pipe 3.

[0070] Wherein, an electric control switch valve 8 is provided on the branch pipe 7. The electric control switch valve 8 is electrically connected with the controller 6. The controller 6 controls the opening of the electric control switch valve 8 and the water pump 4 according to the start of the cold air blower 504.

[0071] By arranging the branch pipe 7 on the water inlet pipe 3, a circulating water path is formed by the water inlet pipe 3, the cold air heat exchange tube 505 and the branch pipe 7. The connection between the electric control switch valve 8 and the controller 6 realizes the automatic control of the system. When the controller 6 receives the cool air start signal, it not only controls the start of the cold air blower 504, but also synchronously opens the electric control switch valve 8 and starts the water pump 4. The water pump 4 pumps the tap water in the cold air heat exchange tube 505 into the branch pipe 7. When the tap water in the branch pipe 7 passes through the cold water inlet 301 of the water inlet pipe 3, it will be mixed with the tap water in the water inlet pipe 3, reducing the temperature of the tap water, and continuing to convey the tap water with a lower temperature to the cold air heat exchange tube 505, ensuring the timely supply of cold water to the cold air heat exchange tube 505, so as to quickly respond to the user's demand and provide instant cool air.

[0072] It should be noted that after the water pump 4 is started, the water flow will preferentially enter the branch pipe 7 with less resistance for circulation. Since the entire branch pipe 7 is arranged inside the casing 1, the water inlet pipe 3 is communicated with the water outlet pipe 17, and the length of the branch pipe 7 is smaller than the total length of the water inlet pipe 3 and the water outlet pipe. Therefore, the resistance of the branch pipe 7 is smaller than that of the water inlet pipe 3.

[0073] In one embodiment, as Figure 4 and Figure 5 shown, it further includes a first one-way valve 9. The first one-way valve 9 is arranged on the branch pipe 7. The inlet of the first one-way valve 9 is communicated with the upper end of the branch pipe 7, and the outlet of the first one-way valve 9 is communicated with the lower end of the branch pipe 7, and is used to control the water flow in the branch pipe 7 to flow from the upper end of the branch pipe 7 to the lower end of the branch pipe 7.

[0074] Setting the first one-way valve 9 on the branch pipe 7 ensures that the water flow in the branch pipe 7 can only flow from the upper end to the lower end, that is, from the water inlet pipe 3 located between the water pump 4 and the heat exchanger 2 to the cold water inlet 301 of the water inlet pipe 3, preventing the water flow from flowing back to the heat exchanger 2, ensuring the correct circulation of the water path, avoiding the water pressure imbalance and water flow chaos in the system, avoiding the unnecessary back-and-forth flow of water in the branch pipe 7, improving the efficiency of the water cycle, ensuring the sufficient supply of cold water in the cold air heat exchange tube 505, and further improving the heat exchange efficiency, making the cool air function stronger and more effective.

[0075] Specifically, the first one-way valve 9 can be selected from a spherical one-way valve, a butterfly one-way valve or a needle-type one-way valve, etc. In the embodiment of the present application, the type of the first one-way valve 9 is not specifically limited.

[0076] In one embodiment, as Figure 4 and Figure 5 shown, it further includes a cold water tank 10 and a thermoelectric refrigeration module 11. Among them, the thermoelectric refrigeration module 11 is arranged on the cold water tank 10. The cold water inlet 301 is arranged at the lower end of the cold water tank 10 and is communicated with the cold water tank 10. The lower end of the cold air heat exchange tube 505 is communicated with the upper end of the cold water tank 10. The lower end of the branch pipe 7 is communicated with the lower end of the cold water tank 10.

[0077] The cold water tank 10 serves as an intermediate water storage container and can store a certain amount of cold water. Even if the cool air function is used in large amounts in a short time, the system can respond quickly without waiting for the water temperature to decrease, improving the response speed and overall efficiency of the system.

[0078] The thermoelectric refrigeration module 11 can actively refrigerate, significantly reducing the water temperature in the cold water tank 10, thereby providing a colder water source for the cold air heat exchange tube 505, enhancing the heat exchange effect, and ensuring that the air temperature sent out from the first cold air outlet 503 is lower and the cool air effect is more obvious.

[0079] Through the combination of the cold water tank 10 and the semiconductor refrigeration module 11, the temperature of the tap water in the cold air heat exchange tube 505 can be kept stable, ensuring the continuous and stable output of the cool air function, and improving the reliability of the system and the user experience.

[0080] It should be noted that since the power of the semiconductor refrigeration module 11 is relatively small and the refrigeration speed is relatively slow, the semiconductor refrigeration module 11 can be turned on in advance before use to lower the temperature of the tap water in the cold water tank 10. Among them, the semiconductor refrigeration module 11 can be connected to the user's mobile phone to facilitate the user to remotely turn on the semiconductor refrigeration module 11.

[0081] Specifically, the cold water tank 10 can be arranged on the periphery of the cold air heat exchange tube 505 to facilitate quickly pumping the tap water in the cold water tank 10 into the cold air heat exchange tube 505. In the embodiments of the present application, the position of the cold water tank 10 is not specifically limited.

[0082] Specifically, the shape of the cold water tank 10 can be adaptively set according to the internal structure of the casing 1. In the embodiments of the present application, the shape of the cold water tank 10 is not specifically limited.

[0083] In one embodiment, as Figure 4 and Figure 5 shown, it further includes a filter element 12. At least one filter element 12 is provided, and among them, the filter element 12 is arranged at the first air inlet 502.

[0084] By filtering out impurities such as dust and oil fume in the air through the filter element 12, the wear and blockage of internal components such as the cold air heat exchange tube 505 and the cold air fan 504 can be reduced, the service life of the equipment can be extended, and the maintenance frequency and cost can be reduced.

[0085] Specifically, the filter element 12 can be selected from a sponge filter plate, a foam filter plate or an activated carbon filter, etc. In the embodiments of the present application, the type of the filter element 12 is not specifically limited.

[0086] Specifically, when multiple filter elements 12 are provided, the multiple filter elements 12 can be arranged at intervals along the length direction of the air flow channel 5011. In the embodiments of the present application, the arrangement manner of the multiple filter elements 12 is not specifically limited.

[0087] Specifically, as Figure 4 and Figure 5 shown, a water inlet temperature sensor 13 and a flow sensor 15 can also be arranged on the water inlet pipe 3, and a water outlet temperature sensor 14 and a second one-way valve 16, etc. can also be arranged on the water outlet pipe 17.

[0088] The working principle of the gas water heater with a cool air function in this embodiment is described as follows:

[0089] AsFigures 1 to 3 As shown, to better describe the working process of the gas water heater with a cool air function, a gas water heater without a branch pipe 7 is taken as an example.

[0090] S101. When the user turns on the cool air function of the gas water heater, the cold air blower 504 is turned on.

[0091] The cold air blower 504 starts to operate, and sucks the hot air in the kitchen from the second air inlet to the first air inlet 502 through the cold air blower 504. Then, the hot air enters the air flow channel 5011 of the cold air heat exchanger 5, and the temperature of the air in the air flow channel 5011 is reduced by the cold tap water inside the cold air heat exchange pipe 505, so that the hot air in the air flow channel 5011 becomes cold air after heat exchange through the cold air heat exchange pipe 505. The cold air blower 504 blows the cold air in the air flow channel 5011 out from the first cold air outlet 503, and then the cold air blows out from the second cold air outlet towards the user direction to reduce the kitchen temperature.

[0092] S102. After the cold air blower 504 operates for a preset time, the water pump 4 is turned on for a set duration and then turned off, and the gas water heater does not ignite.

[0093] When the cold air blower 504 operates for 10 minutes, the temperature of the tap water in the cold air heat exchange pipe 505 rises. At this time, the controller 6 controls the water pump 4 to operate for 10 seconds and then turn off, and the gas water heater does not ignite. That is, the original tap water in the cold air heat exchange pipe 505 is transported to the water outlet pipe 17 through the water inlet pipe 3, so that the relatively cold tap water enters the cold air heat exchange pipe 505 to ensure that the cold air heat exchange pipe 505 can continue to conduct heat exchange treatment on the hot air.

[0094] S103. When the user turns off the cool air function of the gas water heater, the blower is turned off.

[0095] The working principle of the gas water heater with a cool air function in another embodiment is described as follows:

[0096] As Figures 4 to 6 shown, to better describe the working process of the gas water heater with a cool air function, a gas water heater with a branch pipe 7 is taken as an example.

[0097] S201. During the default kitchen usage time period, the semiconductor refrigeration module 11 is turned on to keep the water temperature in the cold water tank 10 within a preset range.

[0098] The user can turn on the semiconductor refrigeration module 11 in advance through the mobile phone APP, which can significantly reduce the water temperature in the cold water tank 10, so as to provide a colder water source for the cold air heat exchange pipe 505 and enhance the heat exchange effect.

[0099] S202. The user activates the cool air function of the gas water heater, and the cold air blower 504, the electric control switch valve 8, and the water pump 4 are turned on simultaneously.

[0100] The water pump 4 transports the tap water in the cold water tank 10 into the cold air heat exchange pipe 505 to ensure the timely supply of cold water to the cold air heat exchange pipe 505 and ensure the heat exchange efficiency of the cold air heat exchange pipe 505.

[0101] S203. After the user turns off the cool air function, turn off the cold air blower 504, the water pump 4, the electric control switch valve 8, and the semiconductor refrigeration module 11.

[0102] In the specific content of the above specific embodiments, the technical features can be combined arbitrarily without contradiction. For the sake of concise description, not all possible combinations of the above technical features are described. However, as long as the combinations of these technical features do not exist in contradiction, they should be considered as the scope recorded in this specification.

[0103] The specific content of the above specific embodiments only expresses several embodiments of the present invention, and its description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention should be subject to the appended claims.

Claims

1. A gas water heater with a cool air function, characterized in that, Comprising: A housing (1), a water inlet pipe (3), a heat exchanger (2), and a cold air heat exchanger (5) disposed within the housing (1). One end of the water inlet pipe (3) is provided with a cold water inlet (301), and the other end is communicated with the heat exchanger (2). A water pump (4) is provided on the pipeline of the water inlet pipe (3) between the cold air heat exchanger (5) and the heat exchanger (2). The cold air heat exchanger (5) includes a housing (501), cold air heat exchange pipes (505), and a cold air fan (504) disposed within the housing (501). A part of the water inlet pipe (3) extends into the housing (501) to form the cold air heat exchange pipes (505). The housing (501) is provided with a first air inlet (502), a first cold air outlet (503), and an air flow path (5011) located between the first air inlet (502) and the first cold air outlet (503). The cold air heat exchange pipes (505) and the cold air fan (504) are located in the air flow path (5011). The housing (1) is provided with a second air inlet corresponding to the first air inlet (502) and a second cold air outlet corresponding to the first cold air outlet (503).

2. The gas water heater with a cool air function according to claim 1, wherein: The cold air heat exchange pipes (505) are arranged in a meandering and bending manner along the length direction of the air flow path (5011).

3. The gas water heater with a cool air function according to claim 1, characterized in that: Wind direction adjustment vanes are provided at the second cold air outlet.

4. The gas water heater with a cool air function according to claim 1, wherein: The first air inlet (502) is provided at the lower end of the housing (501), the first cold air outlet (503) is provided at the upper end of the housing (501), the cold air fan (504) is disposed on one side of the air flow path (5011) close to the first air inlet (502), and the cold air heat exchange pipes (505) are disposed between the cold air fan (504) and the first cold air outlet (503).

5. The gas water heater with a cool air function according to claim 1, characterized in that: It further includes a controller (6). The controller (6) is electrically connected to the cold air fan (504) and the water pump (4) respectively, and is used to control the cold air fan (504) to start according to a cool air opening signal, and control the water pump (4) to start for a set duration at intervals of a preset time and then close.

6. The gas water heater with a cool air function according to claim 5, characterized in that: It further includes a temperature sensor. The temperature sensor is used to detect the temperature of the cold air heat exchange pipes (505). The controller (6) is electrically connected to the temperature sensor, and is used to control the cold air fan (504) to start according to a cool air opening signal, and control the water pump (4) to run for a set duration and then close according to the temperature value detected by the temperature sensor reaching a preset temperature value.

7. The gas water heater with a cool air function according to any one of claims 1 to 4, characterized in that: It further includes a branch pipe (7) connected in parallel with the water inlet pipe (3). The branch pipe (7) is disposed within the housing (1). The upper end of the branch pipe (7) is communicated with the water inlet pipe (3) between the water pump (4) and the heat exchanger (2), the lower end of the branch pipe (7) is communicated with the cold water inlet (301) of the water inlet pipe (3), and an electrically controlled switch valve (8) is provided on the branch pipe (7); It further includes a controller (6), the electric control switch valve (8) is electrically connected to the controller (6), and based on the opening signal of the cold air blower (504), the controller (6) controls the electric control switch valve (8) and the water pump (4) to be opened.

8. The gas water heater with a cool air function according to claim 7, characterized in that: It further includes a first check valve (9), the first check valve (9) is arranged on the branch pipe (7), the inlet of the first check valve (9) is communicated with the upper end of the branch pipe (7), and the outlet of the first check valve (9) is communicated with the lower end of the branch pipe (7).

9. The gas water heater with a cool air function according to claim 8, characterized in that: It further includes a cold water tank (10) and a semiconductor refrigeration module (11) arranged on the cold water tank (10), the cold water inlet (301) is arranged at the lower end of the cold water tank (10) and is communicated with the cold water tank (10), the lower end of the cold air heat exchange pipe (505) is communicated with the upper end of the cold water tank (10), and the lower end of the branch pipe (7) is communicated with the lower end of the cold water tank (10).

10. The gas water heater with a cool air function according to any one of claims 1 to 4, characterized in that: It further includes at least one filter element (12), and the filter element (12) is arranged at the first air inlet (502).

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