CN218993671U - Dual-purpose gas water heater - Google Patents
Dual-purpose gas water heater Download PDFInfo
- Publication number
- CN218993671U CN218993671U CN202223451836.2U CN202223451836U CN218993671U CN 218993671 U CN218993671 U CN 218993671U CN 202223451836 U CN202223451836 U CN 202223451836U CN 218993671 U CN218993671 U CN 218993671U
- Authority
- CN
- China
- Prior art keywords
- water
- storage tank
- heater
- gas
- water storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The utility model belongs to the technical field of gas water heaters, and discloses a dual-purpose gas water heater which comprises a gas water heater, a controller and a drinking water system, wherein the drinking water system comprises a secondary heat exchanger, a water storage tank, a water pump and an electric heater, and the secondary heat exchanger is connected with a discharge flue of the gas water heater and can exchange heat with high-temperature flue gas; the water storage tank is used for storing drinking water, the water outlet of the water storage tank is communicated with the water outlet pipe, and the water inlet of the water storage tank is communicated with the water inlet pipe; the secondary heat exchanger comprises a heat exchange tube, and two ends of the heat exchange tube are respectively communicated with a water inlet and a water outlet of the water storage tank to form a preheating circulation pipeline; the water pump is arranged on the preheating circulation pipeline and is positioned between the water outlet of the water storage tank and the secondary heat exchanger; the electric heater is configured to heat drinking water, and the water pump and the electric heater are electrically connected with the controller. According to the utility model, the recycling of high-temperature flue gas energy and the preheating of drinking water are realized through the heat exchange between the secondary heat exchanger and the high-temperature flue gas, and the problem of high energy consumption is solved.
Description
Technical Field
The utility model relates to the technical field of gas water heaters, in particular to a dual-purpose gas water heater.
Background
The gas water heater uses gas as energy, has the advantages of high electric power and capability of providing rapid large-flow hot water, and is commonly installed in a kitchen or a bathroom. Potable water systems use electricity as an energy source and are commonly used to provide potable hot water.
The gas water heater and the drinking water system are used as water treatment equipment and are commonly and independently installed when being installed as household appliances, and the gas heating and the electric heating respectively provide bathroom hot water and drinking hot water. The gas water heater can discharge high temperature flue gas in the use, and the water storage tank of drinking water system needs heat preservation and heating water purification, therefore a scheme that can combine the two to the energy saving consumption is needed urgently.
Disclosure of Invention
The utility model aims to provide a dual-purpose gas water heater, which can effectively solve the problem of large energy consumption caused by independent installation of a gas water heater and a drinking water system.
The technical problems are solved by the following technical scheme:
the dual-purpose gas water heater comprises a gas water heater and a controller, wherein high-temperature flue gas of the gas water heater is discharged through a discharge flue; the dual-purpose gas water heater still includes drinking water system, drinking water system includes:
the secondary heat exchanger is connected with the exhaust flue of the gas water heater and can exchange heat with high-temperature flue gas in the exhaust flue;
the water storage tank is used for storing drinking water, the water outlet of the water storage tank is communicated with the water outlet pipe, and the water inlet of the water storage tank is communicated with the water inlet pipe; the two-stage heat exchanger comprises a heat exchange tube, and two ends of the heat exchange tube are respectively communicated with a water inlet and a water outlet of the water storage tank to form a preheating circulation pipeline;
the water pump is arranged on the preheating circulation pipeline and is positioned between the water outlet of the water storage tank and the secondary heat exchanger so as to provide circulation power for drinking water;
the electric heater is configured to heat the drinking water in the water storage tank, and the water pump and the electric heater are electrically connected with the controller.
Compared with the background technology, the dual-purpose gas water heater has the following beneficial effects:
the dual-purpose gas water heater comprises the gas water heater, the controller and the drinking water system, wherein the secondary heat exchanger of the drinking water system is connected with the exhaust flue of the gas water heater, so that the secondary heat exchanger can exchange heat with the waste heat of high-temperature flue gas, the power consumption for heating drinking water by using an electric heater only is reduced, the recycling of the heat of the high-temperature flue gas is realized, and the problem of high energy consumption when the gas water heater and the drinking water system are independently heated respectively is solved; the drinking water system and the gas water heater are integrally installed, so that the problem of large occupied space existing in the independent installation of the gas water heater and the drinking water system is solved.
In one embodiment, the electric heater is disposed on the preheating circulation line between the water storage tank and the water pump, or is disposed inside the water storage tank.
In one embodiment, the potable water system further comprises a filter element disposed on the water inlet pipe.
In one embodiment, the drinking water system further comprises a bypass pipe, wherein two ends of the bypass pipe are respectively communicated with the water inlet pipe and the water outlet pipe of the outlet end of the filter element.
In one embodiment, the potable water system further comprises a solenoid valve electrically connected to the controller, the solenoid valve being disposed on the bypass pipe.
In one embodiment, the potable water system further comprises a first one-way valve disposed on the water inlet pipe between the outlet end of the filter cartridge and the water storage tank, the first one-way valve configured to unidirectionally conduct potable water from the outlet end of the filter cartridge to the water storage tank.
In one embodiment, the potable water system further comprises a second temperature sensor electrically connected to the controller, the second temperature sensor being disposed on the inlet tube at the outlet end of the filter cartridge to detect a first water temperature of potable water entering the water storage tank.
In one embodiment, the drinking water system further comprises a second one-way valve, the second one-way valve is arranged on the preheating circulation pipeline and is positioned at the outlet of the water pump, and the second one-way valve can conduct the drinking water in the water storage tank to flow to the secondary heat exchanger in a one-way mode.
In one embodiment, the water storage tank is provided with a first temperature sensor electrically connected with the controller, and the first temperature sensor is used for detecting a second water temperature of drinking water in the water storage tank.
In one embodiment, the outer wall of the water storage tank is in direct contact with the outer wall of the combustion chamber of the gas water heater for heat exchange, and/or at least part of the outer wall of the preheating circulation line is in direct contact with the outer wall of the combustion chamber for heat exchange.
In one embodiment, the drinking water system further comprises a water return pipe, two ends of the water return pipe are respectively communicated with the water outlet pipe and the water inlet pipe, one end of the heat exchange pipe, which is away from the water inlet of the water storage tank, is communicated with the water inlet pipe, and the water outlet pipe, the water return pipe, the water inlet pipe and the heat exchange pipe are sequentially connected between the water outlet and the water inlet of the water storage tank to form the preheating circulation pipeline.
Drawings
FIG. 1 is a schematic diagram of a dual-purpose gas water heater according to an embodiment of the present utility model;
fig. 2 is a schematic diagram of a dual-purpose gas water heater according to an embodiment of the present utility model.
Description of the reference numerals:
100. a gas water heater; 101. a combustion chamber; 102. a primary heat exchanger; 103. a blower; 104. a discharge flue; 105. a water flow sensor;
200. a potable water system; 201. a secondary heat exchanger; 202. a water storage tank; 203. a water pump; 204. an electric heater; 205. a filter element; 206. an electromagnetic valve; 207. a first one-way valve; 208. a second one-way valve; 209. a first temperature sensor; 210. a second temperature sensor; 211. a water inlet pipe; 212. a water outlet pipe; 213. a bypass pipe; 214. a heat exchange tube; 215. a water return pipe;
A. a tap water inlet; B. a bathroom hot water outlet; C. a drinking water inlet; D. and a drinking water outlet.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The embodiment of the utility model provides a dual-purpose gas water heater, as shown in fig. 1, which comprises a gas water heater 100 and a controller, wherein the gas water heater 100 comprises a combustion chamber 101, a primary heat exchanger 102, a fan 103 and a discharge flue 104, the primary heat exchanger 102 is positioned between a tap water inlet A and a bathroom hot water outlet B to provide bathroom hot water, after tap water passes through the tap water inlet A and generates a water flow signal through a water flow sensor 105, the controller starts the gas water heater 100 to work, and high-temperature flue gas generated by the gas water heater 100 is discharged into the discharge flue 104 from an outlet of the fan 103 after heat exchange of the primary heat exchanger 102, and finally discharged. In order to fully utilize the waste heat of the high-temperature flue gas in the exhaust flue 104 and the integrated installation space, the embodiment of the utility model integrates the gas water heater 100 and the drinking water system 200 to obtain the dual-purpose gas water heater, the waste heat of the high-temperature flue gas in the exhaust flue 104 can be recycled to preheat the drinking water so as to save energy consumption, and the gas water heater 100 and the drinking water system 200 are integrally installed to save the installation space.
Specifically, the dual-purpose gas water heater of the embodiment comprises a gas water heater 100, a controller and a drinking water system 200, wherein the drinking water system 200 comprises a secondary heat exchanger 201, a water storage tank 202, a water pump 203 and an electric heater 204, and the secondary heat exchanger 201 is connected with a flue 104 of the gas water heater 100 and can exchange heat with the waste heat of high-temperature flue gas in the flue 104; the water storage tank 202 is used for storing drinking water, the water outlet of the water storage tank 202 is connected with the water outlet pipe 212, the water inlet of the water storage tank 202 is connected with the water inlet pipe 211, the secondary heat exchanger 201 comprises a heat exchange pipe 214, two ends of the heat exchange pipe 214 are respectively communicated with the water inlet and the water outlet of the water storage tank 202 to form a preheating circulation pipeline, the water pump 203 is arranged on the preheating circulation pipeline and is positioned between the water outlet of the water storage tank 202 and the secondary heat exchanger 201 to provide circulating power for drinking water, the electric heater 204 is configured to heat drinking water in the water storage tank 202, and the water pump 203 and the electric heater 204 are electrically connected with the controller.
As shown in fig. 1, the secondary heat exchanger 201 comprises a heat exchange tube 214, wherein a water inlet of the water storage tank 202 is arranged at the top end of the water storage tank 202, a water outlet is arranged at the bottom end, and a water outlet end of the heat exchange tube 214 is communicated with the water inlet of the water storage tank 202 so that preheated drinking water flows back to the water storage tank 202 under the action of gravity; the water outlet of the water storage tank 202 is communicated with the water inlet end of the heat exchange tube 214 of the secondary heat exchanger 201, the water pump 203 is arranged at the water outlet of the water storage tank 202, and drinking water is circulated between the water storage tank 202 and the secondary heat exchanger 201 under the action of the water pump 203 to achieve preheating. According to the dual-purpose gas water heater, the secondary heat exchanger 201 of the drinking water system 200 is connected with the exhaust flue 104 of the gas water heater 100, so that the secondary heat exchanger 201 can exchange heat with the waste heat of high-temperature flue gas, the heat of the high-temperature flue gas is recycled, the electric heater 204 heats the preheated drinking water, the using power of the electric heater 204 is greatly reduced, the problem of high energy consumption caused by independent installation of the gas water heater 100 and the drinking water system 200 is solved, the heat waste of the high-temperature flue gas is reduced, and the heating power of the drinking water system 200 is saved. When the gas water heater 100 starts to work, the controller controls the water pump 203 to be started, the drinking water circulates between the water storage tank 202 and the secondary heat exchanger 201, heat exchange is realized between the drinking water and the waste heat of high-temperature flue gas in the secondary heat exchanger 201, and the heated drinking water is stored in the water storage tank 202. When the gas water heater 100 stops working, the controller controls the water pump 203 to be turned off, and the drinking water stops circulating, and meanwhile, the controller can judge whether the electric heater 204 is turned on according to the requirement so as to heat the drinking water in the water storage tank 202 to the required temperature.
In general, the drinking water system 200 is limited by a household electrical plug, and generally only has 2kW of power, while the power of a more common 16L machine in the gas water heater 100 is generally 30kW, and the water production capacity of the secondary heat exchanger 201 generally accounts for about 10% of the total water production capacity, which is converted into 3kW of heating power, and the maximum power value of the heater of the drinking water system 200 is improved by 50% compared with that of the general drinking water system 200, so that the dual-purpose gas water heater not only recovers the high-temperature flue gas waste heat, but also greatly improves the heating power of the drinking water system 200. By connecting the secondary heat exchanger 201 of the drinking water system 200 with the exhaust flue 104 of the gas water heater 100, the integrated installation of the drinking water system 200 and the gas water heater 100 is realized, and the problem of large occupied space in the prior art that the gas water heater 100 and the drinking water system 200 are respectively and independently installed is solved.
In the dual-purpose gas water heater system, the high-temperature flue gas preheats drinking water. When the electric heater 204 is used for heating the drinking water, compared with the heating by using the electric heater 204 alone, the consumed power of the electric heater 204 is greatly reduced, the heating speed of the drinking water can be greatly accelerated, the electric energy is saved, and the high-temperature flue gas energy recovery is realized. When the gas water heater 100 is in the non-operating period, the electric heater 204 serves as a basic electric heating element to heat the drinking water in the water storage tank 202 so as to provide drinking hot water for the drinking water outlet D at the end of the water outlet pipe 212, which is a heating mode of conventional drinking water.
In one embodiment, the electric heater 204 may be disposed inside the water storage tank 202 to heat the drinking water in the water storage tank 202, and when the second water temperature of the drinking water in the water storage tank 202 meets the water outlet temperature requirement, the water storage tank 202 can directly output the drinking hot water. After the water level in the water storage tank 202 drops, since the two ends of the water inlet pipe 211 are communicated with the drinking water inlet C and the water storage tank 202, drinking water can be directly supplemented to the water storage tank 202, and it can be understood that the drinking water provided by the water inlet pipe 211 can also be used for adjusting the water temperature in the water storage tank 202 so as to meet the needs of users.
In one embodiment, the electric heater 204 is disposed on the preheating circulation pipeline between the water storage tank 202 and the water pump 203, meanwhile, the electric heater 204 is located between the water outlet of the water storage tank 202 and the drinking water outlet D, and when the drinking water flows out from the water outlet of the water storage tank 202, the drinking water can be heated immediately or directly supplied to the drinking water outlet D; when the drinking water outlet D is closed, the water pump 203 and the electric heater 204 are turned on by the controller to perform cyclic electric heating of the drinking water so as to heat the temperature of the drinking water in the water storage tank 202 to a designated temperature.
In one embodiment, the potable water system 200 further comprises a filter cartridge 205, the filter cartridge 205 being disposed on the water inlet tube 211, the outlet end of the filter cartridge 205 being capable of providing filtered potable water to the water storage tank 202.
As shown in fig. 1, in this embodiment, the filter element 205 is used to provide filtered drinking water, also called purified water, for the drinking water system 200, one end of the water inlet pipe 211 is connected to the drinking water inlet C, the other end is connected to the water inlet of the water storage tank 202, and the filter element 205 is disposed on the water inlet pipe 211 between the drinking water inlet C and the water storage tank 202, and is used to filter tap water to obtain purified water. The cartridge 205 may be specifically secured to the housing of the gas water heater 100 to facilitate replacement of the cartridge 205. The drinking water system 200 is integrally arranged in the outer cover of the gas water heater 100, so that the heat preservation of drinking water in the water storage tank 202 is facilitated, the integrated installation of the gas water heater 100 and the drinking water system 200 is realized, the integral independent installation space is saved, and the power supply and the pipeline are simpler and more convenient to arrange relative to the independent installation. It should be noted that, in this embodiment, the drinking water system 200 and the gas water heater 100 share the tap water inlet a, and tap water is respectively guided to the drinking water system 200 or the gas water heater 100 through the three-way valve, so that the pipeline is integrally arranged, which is beneficial to layout and simplifies the layout space. It should be noted that, the selective conduction by providing a three-way valve at the branch of the pipeline is a common known technique, and is not specifically described in this embodiment.
In one embodiment, the potable water system 200 further includes a bypass pipe 213, and two ends of the bypass pipe 213 are respectively connected to the water inlet pipe 211 and the water outlet pipe 212 of the outlet end of the filter element 205.
As shown in fig. 1, the bypass pipe 213 can directly supply the purified water at the outlet end of the filter element 205 to the drinking water outlet D to supply cold water.
In one embodiment, the potable water system 200 further includes a solenoid valve 206 electrically connected to the controller, the solenoid valve 206 being disposed on the bypass 213.
As shown in fig. 1, the bypass pipe 213 is connected to the outlet end of the filter element 205 and the outlet pipe 212, so that the drinking water at the drinking water inlet C can be directly supplied to the drinking water outlet D after being filtered by the filter element 205. Meanwhile, since the water outlet pipe 212 is communicated with the water outlet of the water storage tank 202, the bypass pipe 213 can also mix the low-temperature drinking water and the high-temperature drinking water at the drinking water outlet D to obtain a proper water temperature. By providing the solenoid valve 206 on the bypass pipe 213, the two water supply modes can be realized by controlling the opening or closing of the solenoid valve 206 by the controller.
In one embodiment, the potable water system 200 further comprises a first one-way valve 207, the first one-way valve 207 being disposed at the inlet pipe 211 between the outlet end of the filter cartridge 205 and the water storage tank 202, the first one-way valve 207 being configured to unidirectionally conduct potable water from the outlet end of the filter cartridge 205 to the water storage tank 202.
As shown in fig. 1, the filter element 205 of the drinking water system 200 is used as a purified water source of the drinking water system 200, and provides purified water for the drinking water system 200, the filter element 205 filters tap water to obtain purified water, and the purified water enters the electromagnetic valve 206 and reaches the drinking water outlet D to obtain drinking cold water; purified water enters the water storage tank 202, and the water storage tank 202 can be supplemented with drinking water. The first check valve 207 is arranged, so that when the electromagnetic valve 206 is conducted, the backflow of the drinking water in the water storage tank 202 can be avoided, and the filter element 205 is protected. It can be understood that the outlet end of the filter element 205 is provided with a three-way valve to realize the diversion of the purified water, if the three-way valve is an electromagnetic valve and is electrically connected with the controller, the conduction direction of the purified water can be controlled by the controller, which is a diversion manner commonly known in the art, and this embodiment is not described in detail.
In one embodiment, the drinking water system 200 further includes a second one-way valve 208, where the second one-way valve 208 is disposed in the preheating circulation line and is located at the outlet of the water pump 203, and the second one-way valve 208 can unidirectional conduct the drinking water in the water storage tank 202 to the secondary heat exchanger 201.
As shown in fig. 1, the preheating circulation line is a closed line for exchanging heat with the residual heat of the high-temperature flue gas of the gas water heater 100; when the electric heater 204 is disposed on the preheating circulation line, the circulation heating of the drinking water in the water storage tank 202 by the electric heater 204 can also be achieved. It will be appreciated that the gas water heater 100 and the potable water system 200 are not typically operated simultaneously, so storing heat exchange energy in the water storage tank 202 by heating the purified water while the gas water heater 100 is operated can save the electric energy of the potable water system 200 for heating the purified water. Therefore, when the potable water system 200 is not in operation and the gas water heater 100 is in operation, the water pump 203 is required to heat the purified water in the water storage tank 202 by exchanging heat at the secondary heat exchanger 201; when the gas water heater 100 is not in operation, the electric heater 204 of the drinking water system 200 is started to work to heat the purified water in the water storage tank 202, or the water pump 203 and the electric heater 204 are started to work simultaneously to rapidly heat the purified water in the water storage tank 202, at this time, the second one-way valve 208 is arranged to ensure the unidirectional circulation flow of the purified water in the preheating circulation pipeline, namely, the purified water flows to the secondary heat exchanger 201 from the water outlet at the bottom end of the water storage tank 202 through the water pump 203, and the second one-way valve 208 can avoid the backflow of the drinking water when the water pump 203 is not in operation.
In one embodiment, the water storage tank 202 is provided with a first temperature sensor 209 electrically connected to the controller, the first temperature sensor 209 being configured to detect a second water temperature of the potable water within the water storage tank 202.
As shown in fig. 1, the first temperature sensor 209 is used to detect a second water temperature of the drinking water in the water storage tank 202, when the temperature of the second water temperature reaches a set high temperature value, the water pump 203 or the electric heater 204 may be turned off, and when the temperature reaches a set low temperature value, the water pump 203 and/or the electric heater 204 may be turned on again to heat the drinking water. It can be appreciated that the controller can receive the temperature signal of the first temperature sensor 209, and further can control the power supply of the drinking water system 200 to adjust the second water temperature in the water storage tank 202, so as to achieve the effects of energy saving and flexible control.
In one embodiment, the potable water system 200 further includes a second temperature sensor 210 electrically connected to the controller, the second temperature sensor 210 being disposed on a water inlet tube 211 at the outlet end of the filter cartridge 205 to detect a first water temperature of potable water entering the water storage tank 202.
As shown in fig. 1, the second temperature sensor 210 is configured to detect a temperature of purified water or potable water at the outlet end of the filter element 205, which is referred to as a first water temperature, so as to calculate a temperature difference between the cold water temperature in the water storage tank 202 and the desired hot water temperature, and further facilitate the controller to adjust the working power of the electric heater 204, so as to save energy.
In one of the embodiments, the outer wall of the water storage tank 202 is in direct contact with the outer wall of the combustion chamber 101 of the gas water heater 100 to exchange heat and/or the pipe outer wall of at least part of the pre-heating circulation line is in direct contact with the outer wall of the combustion chamber 101 to exchange heat.
As shown in fig. 1, the drinking water system 200 is integrally installed with the gas water heater 100 in the housing of the gas water heater 100, and the housing has a heat insulation function and a protection function, and the water storage tank 202 is a device for storing drinking hot water, so that when the gas water heater 100 works, the outer wall surface of the combustion chamber 101 forms a high temperature panel, and as long as part of the heat exchange tubes 214 in the preheating circulation pipeline and/or the outer wall of the water storage tank 202 are tightly attached to the outer wall of the combustion chamber 101, the heating of the drinking water in the part of the heat exchange tubes 214 and the water storage tank 202 can be realized, and the heating speed of the drinking water in the water storage tank 202 can be further accelerated, and the energy is further saved.
In one embodiment, the drinking water system further comprises a water return pipe 215, two ends of the water return pipe 215 are respectively communicated with the water outlet pipe 212 and the water inlet pipe 211, one end of the heat exchange pipe 214, which is away from the water inlet of the water storage tank 202, is communicated with the water inlet pipe 211, and the water outlet pipe 212, the water return pipe 215, the water inlet pipe 211 and the heat exchange pipe 214 are sequentially connected between the water outlet and the water inlet of the water storage tank 202 to form a preheating circulation pipeline.
As shown in fig. 2, in this embodiment, the water outlet of the water storage tank 202 is connected to the water outlet pipe 212, the water return pipe 215 is connected to the water outlet pipe 212 and the water inlet pipe 211, the water inlet pipe 211 is connected to the heat exchange pipe 214 and is connected to the water inlet of the water storage tank 202 through the heat exchange pipe 214, and compared with the water inlet pipe 211 in fig. 1 which is separately connected to the water inlet of the water storage tank 202, this embodiment further simplifies the pipeline structure, and is beneficial to saving the installation space and saving the pipeline cost. As shown in fig. 2, the electric heater 204 is disposed on the water outlet pipe 212 between the water outlet of the water storage tank 202 and the water return pipe 215, so as to ensure that the electric heater 204 is located on the preheating circulation pipeline, and can perform circulation heating on the drinking water in the water storage tank 202 to obtain the drinking hot water with a required temperature. The water pump 203 and the second one-way valve 208 on the preheating circulation pipeline are both arranged on the water return pipe 215 and are used for realizing one-way circulation of the drinking water in the preheating circulation pipeline; meanwhile, the first one-way valve 207 and the second temperature sensor 210 are arranged on the water inlet pipe 211 between the outlet end of the filter element 205 and the water return pipe 215, and the first one-way valve 207 is used for one-way conducting purified water at the outlet end of the filter element 205 to enter the water storage tank 202 after sequentially passing through the water inlet pipe 211 and the heat exchange pipe 214, so that backflow is avoided. It can be understood that the two ends of the water return pipe 215 and the bypass pipe 213 can be respectively provided with three-way elements to realize selective conduction of the water path, which belongs to the conventional technology, and the embodiment does not limit or expand the description, so that the user can set the water path according to the needs.
In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.
Claims (11)
1. The dual-purpose gas water heater comprises a gas water heater (100) and a controller, wherein high-temperature flue gas of the gas water heater (100) is discharged through a discharge flue (104); the dual-purpose gas water heater is characterized by further comprising a drinking water system (200), wherein the drinking water system (200) comprises:
the secondary heat exchanger (201), the said secondary heat exchanger (201) links to each other with the said discharge flue (104) of the said gas water heater (100) and can exchange heat with the high-temperature flue gas in the said discharge flue (104);
the water storage tank (202), the water storage tank (202) is used for storing drinking water, the water outlet of the water storage tank (202) is communicated with the water outlet pipe (212), and the water inlet of the water storage tank (202) is communicated with the water inlet pipe (211); the secondary heat exchanger (201) comprises a heat exchange tube (214), and two ends of the heat exchange tube (214) are respectively communicated with a water inlet and a water outlet of the water storage tank (202) to form a preheating circulation pipeline;
a water pump (203) arranged on the preheating circulation pipeline and positioned between the water outlet of the water storage tank (202) and the secondary heat exchanger (201) to provide the circulation power of the drinking water;
an electric heater (204), the electric heater (204) configured to heat drinking water within the water storage tank (202);
the water pump (203) and the electric heater (204) are electrically connected with the controller.
2. The dual-purpose gas water heater as claimed in claim 1, wherein the electric heater (204) is provided on the preheating circulation line between the Chu Shuiguan (202) and the water pump (203) or inside the Chu Shuiguan (202).
3. The dual-purpose gas water heater as claimed in claim 1, wherein the potable water system (200) further comprises a filter cartridge (205), the filter cartridge (205) being disposed on the water inlet pipe (211).
4. A dual-purpose gas water heater as claimed in claim 3, wherein the potable water system (200) further comprises a bypass pipe (213), both ends of the bypass pipe (213) being respectively connected to the water inlet pipe (211) and the water outlet pipe (212) of the outlet end of the filter element (205).
5. The dual-purpose gas water heater as recited in claim 4, wherein the potable water system (200) further comprises a solenoid valve (206) electrically connected to the controller, the solenoid valve (206) being disposed on the bypass pipe (213).
6. A dual-purpose gas water heater as claimed in claim 3, wherein the potable water system (200) further comprises a first one-way valve (207), the first one-way valve (207) being provided on the water inlet pipe (211) between the outlet end of the filter cartridge (205) and the water storage tank (202), the first one-way valve (207) being configured to conduct potable water unidirectionally from the outlet end of the filter cartridge (205) to the water storage tank (202).
7. A dual-purpose gas water heater as claimed in claim 3, wherein the potable water system (200) further comprises a second temperature sensor (210) electrically connected to the controller, the second temperature sensor (210) being disposed on the water inlet pipe (211) of the outlet end of the filter cartridge (205) to detect a first water temperature of potable water entering the water storage tank (202).
8. The dual-purpose gas water heater as claimed in any one of claims 1-6, wherein the potable water system (200) further comprises a second one-way valve (208), the second one-way valve (208) being disposed on the pre-heating circulation line and at the outlet of the water pump (203), the second one-way valve (208) being capable of one-way conducting potable water within the water storage tank (202) to the secondary heat exchanger (201).
9. A dual-purpose gas water heater as claimed in any one of claims 1-6, wherein the water storage tank (202) is provided with a first temperature sensor (209) electrically connected to the controller, the first temperature sensor (209) being arranged to detect a second water temperature of potable water within the water storage tank (202).
10. A dual-purpose gas water heater as claimed in any of claims 1-6, wherein the outer wall of the water storage tank (202) is in direct contact with the outer wall of the combustion chamber (101) of the gas water heater (100) for heat exchange and/or wherein at least part of the tube outer wall of the pre-heating circulation line is in direct contact with the outer wall of the combustion chamber (101) for heat exchange.
11. The dual-purpose gas water heater as claimed in claim 1, wherein the drinking water system (200) further comprises a water return pipe (215), two ends of the water return pipe (215) are respectively communicated with the water outlet pipe (212) and the water inlet pipe (211), one end of the heat exchange pipe (214) deviating from the water inlet of the water storage tank (202) is communicated with the water inlet pipe (211), and the water outlet pipe (212), the water return pipe (215), the water inlet pipe (211) and the heat exchange pipe (214) are sequentially connected between the water outlet and the water inlet of the water storage tank (202) to form the preheating circulation pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223451836.2U CN218993671U (en) | 2022-12-21 | 2022-12-21 | Dual-purpose gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223451836.2U CN218993671U (en) | 2022-12-21 | 2022-12-21 | Dual-purpose gas water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218993671U true CN218993671U (en) | 2023-05-09 |
Family
ID=86191492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223451836.2U Active CN218993671U (en) | 2022-12-21 | 2022-12-21 | Dual-purpose gas water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218993671U (en) |
-
2022
- 2022-12-21 CN CN202223451836.2U patent/CN218993671U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100399613C (en) | Fuel cell cogeneration system and waste heat heating system | |
| RU2496061C2 (en) | Water heater design | |
| JP5537971B2 (en) | Solar water heating system | |
| CN218993671U (en) | Dual-purpose gas water heater | |
| CN216924756U (en) | Gas heating water heater | |
| WO2004025188A1 (en) | Water heating apparatus | |
| JP5546264B2 (en) | Solar water heater | |
| CN114198904A (en) | Gas heating water heater | |
| CN213362834U (en) | Preheating water tank and dual-purpose furnace comprising same | |
| KR200446160Y1 (en) | System for automatically control heating and hot water in briquette boiler | |
| CN211290527U (en) | Wall-mounted furnace | |
| CN209840399U (en) | Water purifier preheats | |
| JP2005009747A (en) | Hot water storage type hot-water supply device | |
| CN216953564U (en) | Zero-cold water module and gas appliance | |
| CN219283618U (en) | Gas heating system | |
| CN220303868U (en) | Gas water heater | |
| CN219868479U (en) | gas water heater | |
| CN216667997U (en) | Hot water electric control circulating device applied to water heater | |
| CN221076750U (en) | Gas water heater | |
| CN215412499U (en) | Multifunctional water heater | |
| JP4867274B2 (en) | Water heater | |
| CN220931367U (en) | Water heater for purifying water | |
| CN103776156A (en) | Gas water heater capable of outputting water at constant temperature | |
| CN219656309U (en) | Water inlet and outlet assembly and gas water heater | |
| CN112648738B (en) | Zero-cold-water heater system and control method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |