WO2024022040A1 - 燃气热水器 - Google Patents

燃气热水器 Download PDF

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Publication number
WO2024022040A1
WO2024022040A1 PCT/CN2023/105407 CN2023105407W WO2024022040A1 WO 2024022040 A1 WO2024022040 A1 WO 2024022040A1 CN 2023105407 W CN2023105407 W CN 2023105407W WO 2024022040 A1 WO2024022040 A1 WO 2024022040A1
Authority
WO
WIPO (PCT)
Prior art keywords
water
heat exchange
functional
exchange chamber
gas
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.)
Ceased
Application number
PCT/CN2023/105407
Other languages
English (en)
French (fr)
Inventor
苟光明
熊晓俊
史晓煜
王丽利
辛森森
梁国荣
潘桂荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Original Assignee
Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from CN202210919875.6A external-priority patent/CN117515890A/zh
Priority claimed from CN202222013645.1U external-priority patent/CN218210110U/zh
Application filed by Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd filed Critical Wuhu Midea Smart Kitchen Appliance Manufacturing Co Ltd
Publication of WO2024022040A1 publication Critical patent/WO2024022040A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H15/00—Control of fluid heaters
    • F24H15/30—Control of fluid heaters characterised by control outputs; characterised by the components to be controlled
    • F24H15/305—Control of valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H8/00—Fluid heaters characterised by means for extracting latent heat from flue gases by means of condensation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/20—Arrangement or mounting of control or safety devices

Definitions

  • This application relates to the technical field of water heaters, especially gas water heaters.
  • the main purpose of this application is to propose a gas water heater, aiming to provide a water pump of the gas water heater that provides functional water for pressure relief.
  • this application proposes a gas water heater, including:
  • the main body of the water heater has a first heat exchange chamber and a second heat exchange chamber that are interconnected with each other.
  • the flue gas discharged from the combustion chamber of the gas water heater passes through the first heat exchange chamber and the second heat exchange chamber in sequence.
  • the main body of the water heater has a heat exchange pipe connected with a cold water inlet pipe and a hot water outlet pipe.
  • the heat exchange pipe includes a first heat exchange pipe section located in the first heat exchange chamber, and a heat exchange pipe section located in the second heat exchange chamber.
  • the second heat exchange tube section in the cavity; and,
  • a functional water treatment system includes a functional water treatment pipeline connecting the second heat exchange chamber and the cold water inlet pipe, and a functional water treatment device disposed on the functional water treatment pipeline, so that the gas water heater can Add functional water to the incoming water to the cold water inlet pipe.
  • the water inlet of the functional water treatment pipeline is connected to the drain outlet of the second heat exchange chamber, and the water outlet of the functional water treatment pipeline is connected to the cold water inlet pipe.
  • the functional water treatment pipeline is located below the second heat exchange chamber
  • a water pump is also provided on the functional water treatment pipeline, and the water pump is located on one side of the water outlet of the functional water treatment device.
  • the functional water treatment system further includes a controller and a first detection component.
  • the first detection component is used to monitor the water level of the condensed water in the second heat exchange chamber.
  • the controller and The first detection component is electrically connected to the water pump, and is used to control the operation of the water pump according to the water level of the condensed water.
  • the functional water treatment pipeline is also provided with a liquid collection box, and the liquid collection box is located between the functional water treatment device and the water pump;
  • the functional water treatment system also includes a second detection part, the second detection part is used to monitor the water level of the functional water in the liquid collecting box, and the controller communicates with the second detection part and the water pump electrical A sexual connection is used to control the operation of the water pump according to the water level of the functional water in the liquid collecting box.
  • the functional water treatment pipeline is further provided with a one-way valve, and the one-way valve is located on one side of the water outlet of the water pump.
  • the gas water heater further includes a circulation pipeline that communicates with the cold water inlet pipe and the hot water outlet pipe to communicate with the heat exchange pipe and at least part of the cold water inlet pipe. Together with at least part of the hot water outlet pipe, a circulation flow path is formed.
  • a circulation pump is further provided on the circulation flow path.
  • the water heater body further includes a combustion chamber located below the first heat exchange chamber, and the heat exchange tube has a coil section surrounding the circumference of the combustion chamber;
  • the first heat exchange chamber and the second heat exchange chamber are arranged horizontally at intervals, and the functional water treatment system is provided below the first heat exchange chamber and the second heat exchange chamber.
  • the water heater body further includes a combustion chamber located below the first heat exchange chamber;
  • the first heat exchange chamber and the second heat exchange chamber are spaced apart in the horizontal direction, and the functional water treatment system and the first heat exchange chamber are spaced apart in the longitudinal direction and are located in the second heat exchange chamber. below.
  • the gas water heater further includes a pressure relief device connected to the water pump to relieve pressure on the water pump.
  • the pressure relief device includes a control valve and a pressure relief pipe, and the solenoid valve is disposed between the water pump and the pressure relief pipe.
  • the pressure relief device is connected to the water pump and the second heat exchange chamber respectively to release the pressure in the water pump to the second heat exchange chamber.
  • the functional water treatment pipeline is further provided with a liquid collection box, and the liquid collection box is located between the functional water treatment device and the water pump.
  • the water inlet of the functional water treatment pipeline is connected to the water outlet of the second heat exchange chamber, and the water outlet of the functional water treatment pipeline is connected to the first heat exchange chamber and the water outlet of the second heat exchange chamber. between the second heat exchange chamber.
  • the water inlet of the functional water treatment pipeline is connected to the drain outlet of the second heat exchange chamber, and the water outlet of the functional water treatment pipeline is connected to the hot water outlet pipe.
  • the conduction direction of the one-way valve is from the water outlet of the water pump to the water outlet of the functional water treatment pipeline.
  • the high-temperature flue gas discharged from the combustion chamber of the gas water heater passes through the first heat exchange chamber and the second heat exchange chamber in sequence, because the high-temperature flue gas interacts with the second heat exchange chamber.
  • the functional water treatment pipeline will convert the second heat exchange chamber into Connected to the cold water inlet pipe, the functional water treatment device located on the functional water treatment pipeline neutralizes, filters and functionally converts the condensed water discharged from the second heat exchange chamber.
  • Figure 1 is a schematic diagram of a first embodiment of a gas water heater provided by this application.
  • Figure 2 is a schematic diagram of a second embodiment of a gas water heater provided by this application.
  • Figure 3 is a schematic diagram of a third embodiment of a gas water heater provided by this application.
  • Figure 4 is a schematic diagram of the fourth embodiment of the gas water heater provided by this application.
  • FIG. 5 is a schematic diagram of the fifth embodiment of the gas water heater provided by this application.
  • Figure 6 is a schematic diagram of the sixth embodiment of the gas water heater provided by this application.
  • Figure 7 is a schematic diagram of the seventh embodiment of the gas water heater provided by this application.
  • FIG. 8 is a schematic diagram of the eighth embodiment of the gas water heater provided by this application.
  • Figure 9 is a schematic diagram of the internal structure of a coilless water tank gas water heater
  • Figure 10 is a schematic diagram of the internal structure of a gas water heater with a coiled water tank.
  • condensing gas water heaters have higher energy efficiency and can help save energy and reduce emissions. Condensing hot gas water heaters are also becoming more and more popular, and the market demand is huge.
  • FIG. 1 to 10 are specific embodiments of the gas water heater 100 provided by this application.
  • a general first-level energy-efficiency condensing gas water heater includes a burner 8, a first-level heat exchanger and a second-level heat exchanger.
  • a water tank is installed above the burner 8, and the first-level heat exchanger is connected above the water tank.
  • the burner 8 is ignited and burned.
  • the high-temperature flue gas discharged from the combustion chamber is discharged into the heat exchange chamber of the primary heat exchanger.
  • the high-temperature flue gas passing through the primary heat exchanger is pumped into the secondary heat exchanger through fan 7, but the sequence of cold water heat exchange is to first exchange heat with the secondary heat exchanger, and then with the primary heat exchanger.
  • Heat exchange that is, before the cold water enters the primary heat exchanger, it first conducts heat exchange and preheating with the secondary heat exchanger.
  • the flue gas undergoes heat exchange in the secondary heat exchanger, its temperature is relatively high. Low, the moisture in the flue gas gradually forms condensed water, but the pH value of the condensed water is low. Generally, the pH value is around 3.0 and it is corrosive to a certain extent.
  • the general solution is to connect another condensate drain pipe to drain it out of the gas water heater.
  • the problem with this method is that if the condensate water treatment effect is not good, it will have a corrosive effect on the sewer pipes.
  • connecting another drainage pipe complicates the pipeline, which is not only troublesome but also limits the installation environment of the condensing gas water heater and affects the user's aesthetic experience.
  • the gas water heater 100 provided by this application includes a water heater main body 1 and a functional water treatment system 2 .
  • the water heater main body 1 has a first water heater connected to each other. Heat exchange chamber 11 and second heat exchange chamber 12.
  • the flue gas discharged from the combustion chamber of the gas water heater 100 passes through the first heat exchange chamber 11 and the second heat exchange chamber 12 in sequence.
  • the water heater body 1 has The heat exchange pipe 15 connects the cold water inlet pipe 13 and the hot water outlet pipe 14.
  • the functional water treatment system 2 includes a functional water treatment pipeline 21 connecting the second heat exchange chamber 12 and the cold water inlet pipe 13, and The functional water treatment device 22 is provided on the functional water treatment pipeline 21 to add functional water to the inlet water of the gas water heater 100 to the cold water inlet pipe 13 .
  • the high-temperature flue gas discharged from the combustion chamber of the gas water heater 100 passes through the first heat exchange chamber 11 and the second heat exchange chamber 12 in sequence. Since the high-temperature flue gas interacts with the second heat exchange chamber, When heat exchange occurs in the heat exchange tube section in the heat exchange chamber 12, condensed water will be formed, and the condensed water will be deposited in the second heat exchange chamber 12.
  • the functional water treatment pipeline 21 connects the second heat exchange chamber 12 and the heat exchange pipe 15.
  • the functional water treatment device 22 located on the functional water treatment pipeline 21 neutralizes, filters and functions the condensed water discharged from the second heat exchange chamber 12. Conversion processing.
  • the condensed water discharged from the second heat exchange chamber 12 is converted into functional water with functions such as skin cleansing, anti-itching or anti-oxidation, and functional water is added to the inlet water of the gas water heater to the cold water inlet pipe to provide a A gas water heater 100 that can provide functional water.
  • Applying the functional water treatment system 2 to a forced condensing gas water heater can not only ensure that the gas water heater reaches the first level of energy efficiency, but also realize the function of saving water, energy and gas, and also completely solve the troublesome problem of condensate water removal.
  • the functional water treatment pipeline 21 recovers functional water to the heat exchange tube 15
  • the functional water may be recovered to the water inlet of the heat exchange tube 15, so that the recovered functional water is mixed with the heat exchange tube 15.
  • the cold water flowing into the cold water inlet pipe 13 undergoes heat exchange through the two heat exchange chambers, and then is discharged from the hot water outlet pipe 14 together; of course, the functional water can also be recovered to the middle of the heat exchange pipe, and the functional water can Without preheating, directly participate in the first-level heat exchange, and then discharge it together from the hot water outlet pipe 14; of course, the functional water can also be recovered between the hot water outlet pipes 14, and the functional water does not need to participate in the exchange.
  • the heat is directly mixed with the reheated hot water in the heat exchange tube 15 and then discharged through the hot water outlet pipe 14 .
  • the water inlet of the functional water treatment pipeline 21 is directly connected to the drainage outlet of the second heat exchange chamber 12, and the water outlet of the functional water treatment pipeline 21 is connected to the cold water inlet.
  • the water pipe 13 is connected, so that the functional water discharged from the drain outlet of the heat exchange chamber and the cold water flowing in from the cold water inlet pipe 13 are exchanged together through the second heat exchange chamber 12 and the first heat exchange chamber 11 in sequence. After heating, it is discharged together from the hot water outlet pipe 14, so that the recycled functional water participates in common heat exchange and will not affect the outlet water temperature.
  • the functional water treatment pipeline 21 is located below the second heat exchange chamber 12.
  • the drain outlet of the second heat exchange chamber 12 is disposed below the second heat exchange chamber 12. The bottom of the cavity 12, so that the functional water in the second heat exchange cavity 12 can flow to the functional water treatment pipeline 21 through its own gravity.
  • the second The second heat exchange chamber 12 is located above the functional water treatment pipeline 21. The functional water in the functional water treatment pipeline 21 needs to return to the heat exchange tube 15 and can be transported upward to the heat exchange tube 15.
  • the functional water treatment pipeline 21 is also provided with a water pump 23, and the water pump 23 is located at the water outlet of the functional water treatment device 22. On one side, the pumping and drainage of the water pump 23 provides a certain power, so that the functional water in the functional water treatment pipeline 21 can smoothly flow back to the heat exchange tube 15 .
  • the gas water heater 100 also includes a pressure relief device.
  • the pressure relief device is connected to the water pump 23 to relieve the pressure of the water pump 23.
  • the pressure relief device can be a control valve 5.
  • the control valve 5 is used to control the rear end of the water pump 23, thereby releasing the high pressure in the water pump 23 to a low pressure environment. The simplest way, it can be directly The high pressure in the water pump 23 is released into the air.
  • control valve 5 can be a solenoid valve, which controls the communication between the water pump 23 and the low-pressure environment through electromagnetism.
  • the control valve 5 can also be a spring-type pressure relief valve. By adjusting the length of the spring force in the valve, To adjust the pressing force, when the pressure in the water pump 23 is higher than the set value, the spring is compressed in the opposite direction, so that the sealing thimble opens and the water releases pressure and flows out, which protects the water pump 23 and regulates the system pressure, which is not done here. limited.
  • a water pump 23 is added as a power device to discharge the treated functional water from the system, and a pressure relief device is provided to release the larger pressure of the water pump 23 to promote the normal operation of the system.
  • the pressure relief device includes a control valve 5 and a pressure relief pipe 6.
  • the solenoid valve is arranged between the water pump 23 and the pressure relief pipe 6, so that the pressure in the water pump 23 reaches the set value, When the pressure of the water pump 23 needs to be relieved or the air in the water pump 23 needs to be discharged, the control valve 5 is opened to transfer the pressure in the water pump 23 to a low-pressure environment through the pressure relief pipe.
  • the pressure relief pipe 6 can be directly connected to the air, thereby directly discharging the gas in the water pump 23 into the air. Such an arrangement is the simplest and most stable, but will have an impact on the environment. Of course, the pressure relief pipe 6 can It is connected to the second heat exchange chamber 12.
  • the pressure relief device is connected to the water pump 23 and the second heat exchange chamber 12 respectively to release the pressure in the water pump 23 to the second heat exchange chamber 12. It is necessary to It should be noted that the second heat exchange chamber 12 is connected to the air and has a low-pressure environment. Therefore, when it is necessary to relieve the pressure of the water pump 23, the pressure relief device is opened, thereby directly releasing the high-pressure water vapor in the water pump. Pressed into the second heat exchange chamber 12, with this arrangement, the entire gas water heater will not discharge water vapor to the outside, and has no impact on the environment. Moreover, when high-pressure water vapor is injected into the second heat exchange chamber 12, it will have an impact on the second heat exchange chamber. The chamber 12 is pressurized to a certain extent, which accelerates the discharge of condensed water in the second heat exchange chamber 12 .
  • the functional water treatment system 2 also includes a controller 25 and a first detection part 26 , the first detection part 26 is used to monitor all the conditions in the second heat exchange chamber 12 To determine the water level of the functional water, the first detection part 26 has a liquid level gauge located in the second heat exchange chamber 12, and the controller 25 is electrically connected to the first detection part 26 and the water pump 23. connection, when the first detection part 26 detects that the water level of the condensed water deposit reaches the first set water level, the controller 25 controls the water pump 23 to start working and pump functional water to the functional water
  • the water in the second heat exchange chamber 12 The water level of the condensed water gradually decreases.
  • the first detection component 26 detects that the water level of the condensed water reaches the second set water level
  • the second set water level can be set to the level when the condensed water is pumped out. state, at this time, the controller 25 controls the water pump 23 to stop working.
  • the controller 25 controls the water pump 23 to stop working.
  • the controller 25 controls the water pump 23 to start working, and the above steps are repeated to achieve a continuous recovery cycle.
  • the functional water treatment pipeline 21 is also provided with a liquid collection box 27 , the liquid collection box 27 is located between the functional water treatment device 22 and the water pump 23.
  • the functional water treatment system 2 also includes a second detection part 28, and the second detection part 28 is used to monitor the
  • the controller 25 is electrically connected to the second detection part 28 and the water pump 23 to control the level of functional water in the liquid collection box 27 according to the water level of the functional water in the liquid collection box 27 .
  • the water pump 23 is working.
  • the controller 25 controls the water pump 23 to start working and pump the functional water to the cold water inlet pipe 13 , the functional water is returned to the heat exchange tube 15. At this time, it can be understood that the water level of the functional water in the liquid collecting box 27 gradually decreases.
  • the fourth set water level can be set to the state when the functional water is pumped out. At this time, the controller 25 controls the water pump 23 to stop working. As the gas water heater 100 continues to operate, the condensed water in the second heat exchange chamber 12 will accumulate and deposit again, and the water level of the functional water will rise again.
  • the controller 25 controls the water pump 23 to start working, and the water level in the liquid collecting box 27 rises from the fourth set water level. In the process of reaching the third set water level, the water pump 23 stops working, thereby reducing the continuous noise generated by the water pump 23 .
  • the pressure of the water pump 23 can also be released into the liquid collecting box 27.
  • the pressure relief device is connected to the water pump 23 and the liquid collecting box 27 respectively, so as to reduce the pressure of the water pump 23 to the liquid collecting box 27.
  • the pressure in 23 is released to the liquid collecting box 27 .
  • the functional water treatment pipeline 21 recovers functional water to the heat exchange tube 15
  • the functional water may be recovered to the water inlet of the heat exchange tube 15, so that the recovered functional water is mixed with the heat exchange tube 15.
  • the cold water flowing into the cold water inlet pipe 13 undergoes heat exchange through the two heat exchange chambers, and then is discharged from the hot water outlet pipe 14 together; of course, the functional water can also be recovered to the middle of the heat exchange pipe 15, and the functional water It can directly participate in the first-level heat exchange without preheating, and then be discharged from the hot water outlet pipe 14 together; of course, the functional water can also be recovered between the hot water outlet pipes 14, and the functional water does not need to participate.
  • the heat exchanger is directly mixed with the reheated hot water in the heat exchange tube 15 and then discharged through the hot water outlet pipe 14 .
  • the water inlet of the functional water treatment pipeline 21 is directly connected to the drainage outlet of the second heat exchange chamber 12, and the water outlet of the functional water treatment pipeline 21 is connected to the cold water inlet pipe 13.
  • the functional water discharged from the drain port of the heat exchange chamber and the cold water flowing in from the cold water inlet pipe 13 jointly undergo heat exchange through the second heat exchange chamber 12 and the first heat exchange chamber 11, and then It is discharged from the hot water outlet pipe 14 together, so that the recycled functional water participates in common heat exchange and does not affect the outlet water temperature.
  • the water inlet of the functional water treatment pipeline 21 is connected to the drain outlet of the second heat exchange chamber 12 , and the water outlet of the functional water treatment pipeline 21 is connected to the first heat exchange chamber 1 and the second heat exchange chamber 12, it is arranged that the water inlet of the functional water treatment pipeline 21 is connected with the drain outlet of the second heat exchange cavity 12, and the outlet of the functional water treatment pipeline 21 is The water inlet is connected between the first heat exchange chamber 11 and the second heat exchange chamber 12 to avoid the influence of functional water on the cold water inlet pipe.
  • the water inlet of the functional water treatment pipeline 21 is connected to the drainage outlet of the second heat exchange chamber 12, and the water outlet of the functional water treatment pipeline 21 is connected to the hot water outlet pipe 14,
  • the water inlet of the functional water treatment pipeline 21 is connected to the drainage outlet of the second heat exchange chamber 12, and the water outlet of the functional water treatment pipeline 21 is connected to the hot water outlet pipe 14, so that Keeping the functional water as close as possible to the point of use can also prevent the functional substances in the functional water from being decomposed by the high temperature in the first heat exchange chamber 11 and affecting its efficacy.
  • the functional water treatment pipeline 21 is also provided with a one-way valve 24.
  • the one-way valve 24 is located on one side of the water outlet of the water pump 23, and the one-way valve The conduction direction of 24 is from the water outlet of the water pump 23 to the water outlet of the functional water treatment pipeline 21.
  • the one-way valve 24 limits the direction of the water flow, that is, the water in the functional water treatment pipeline 21 only It can flow to the connecting pipe section 153 to prevent the cold water flowing in from the cold water inlet pipe 13 from flowing back into the functional water treatment pipeline 21 .
  • the gas water heater 100 also includes a circulation pipeline 3. 3. Connect the cold water inlet pipe 13 and the hot water outlet pipe 14 to form a circulation flow path together with the heat exchange pipe 15, at least part of the cold water inlet pipe 13 and at least part of the hot water outlet pipe 14.
  • a circulation pump 4 is also provided on the circulation flow path, and the circulation pump 4 serves as a power device for zero cold water circulation to provide power for the circulation flow path.
  • the working process of a gas water heater with a coiled water tank is: domestic tap water enters the water system through the cold water inlet pipe.
  • a water flow sensor is set at the front end of the water system to detect the water flow.
  • the domestic tap water enters the secondary heat exchanger and is The flue gas inside is preheated, and then passes through the coil on the outer wall of the water tank.
  • the lower temperature tap water cools down the wall of the water tank and at the same time increases its own temperature.
  • the tap water in the water system enters the primary heat exchanger and is The high-temperature flue gas from the water tank is heated to the applicable water temperature, and then discharged from the hot water outlet pipe into the domestic water point.
  • the combustion chamber of the coilless water tank gas water heater does not have a water pipe coil surrounding the water tank to cool the water tank. Instead, it uses a double-layer stainless steel plate combustion chamber structure.
  • the cold air passes through the outermost wall under the action of the suction of the fan 7.
  • the hole in the tank enters the interlayer between the inner and outer layers of stainless steel, and the cold air convects and heats between the interlayers to cool the water tank.
  • the water heater body 1 further includes a combustion chamber 16 located below the first heat exchange chamber 11 , and the heat exchange tube 151 has a heat exchanger pipe 151 arranged around the circumference of the combustion chamber 16 .
  • the coil section 151 that is, the gas water heater 100 is a gas water heater with a coil water tank.
  • the first heat exchange chamber 11 and the second heat exchange chamber 12 are arranged at intervals in the horizontal direction. In order to utilize the existing heat exchanger as much as possible. space, the functional water treatment system 2 can be installed below the first heat exchange chamber 11 and the second heat exchange chamber 12.
  • the solenoid valve, the water pump 23, the The functional water treatment device 22 is disposed below the combustion chamber 16 , and the controller 25 , the one-way valve 24 , etc. can be disposed below the second heat exchange chamber 12 .
  • the layout can effectively utilize the existing space, make the gas water heater 100 more compact, and reduce the water path of the functional water recycling system.
  • the structure of the gas water heater 100 is also more compact and reduces functional water recycling.
  • the water path of the system the water heater body 1 also includes a combustion chamber 16 located below the first heat exchange chamber 11, the first heat exchange chamber 11 and the second heat exchange chamber 12 are arranged at intervals in the horizontal direction, so The functional water treatment system 2 is spaced apart from the first heat exchange chamber 11 in the longitudinal direction, and is located below the second heat exchange chamber 12 .
  • the solenoid valve, the water pump 23 , the functional water treatment device 22 , the controller 25 , the one-way valve 24 , etc. can be disposed below the second heat exchange chamber 12 .
  • the specific structure of the gas water heater 100 is as follows:
  • the waterway system includes a cold water inlet pipe 13.
  • a water flow sensor is installed in the cold water inlet pipe 13.
  • the heat exchange pipe 151 of the cold water inlet pipe 13 is connected to the second heat exchange pipe section 152 and the second heat exchange pipe section 152.
  • the coil section 151 and the hot water outlet pipe 14 for output; the waterway system allows domestic tap water to enter and pass through the heat exchange pipe 151 and the second heat exchange pipe section 152 and then from the hot water outlet pipe 14 The water is discharged through the road, and then reaches various domestic water points.
  • the gas supply system includes the gas input port, the proportional valve, and the gas distribution rod connected to the gas input port; the gas supply system safely and accurately transports the gas to the burner unit, and converts the chemical energy of the gas into thermal energy for domestic tap water. utilized.
  • the functional water treatment system 2 includes the functional water treatment pipeline 21 connected to the drainage outlet of the second heat exchange chamber 12, the functional water treatment device 22, and the water outlet of the functional water treatment device 22 is connected with a
  • the first three-way valve 26 has one end connected to the water pump 23, and the water outlet of the water pump 23 is directed to the cold water inlet pipe 13.
  • the water pump 23 and the cold water inlet pipe 13 The one-way valve 24 is provided in between, the other end of the second three-way valve 27 is connected to the solenoid valve, and the water outlet of the solenoid valve is connected to the second heat exchange chamber 12;
  • the burner unit is equipped with multiple fire rows
  • the fan 7 is installed, the inlet end of the fan 7 is connected to the outlet end of the heat exchanger 6, the outlet end of the fan 7 is connected to the flue gas inlet end of the secondary heat exchanger; the fan 7 is used to convert gas and air is sucked into the combustion chamber 16 for combustion, while the exhaust smoke is discharged to the secondary heat exchanger and discharged from the exhaust port.
  • the first-level heat exchanger is equipped with multiple fins, and an oxygen-free copper combustion chamber 16 is provided below it as a gas combustion chamber.
  • the temperature of the combustion chamber is very high, so there is a coil outside the oxygen-free copper combustion chamber 16. It is used to cool down the combustion chamber 16 to extend the working life of the combustion chamber 16.
  • the first heat exchange chamber 11 is formed in the first-level heat exchanger;
  • the second heat exchange chamber 12 is formed in the second heat exchanger, and the probe of the liquid level gauge is provided in the second heat exchange chamber 12; the second stage heat exchanger realizes The flue gas is cooled down again and the incoming water is preheated to reuse the waste heat of the flue gas, which is a key component to improve energy efficiency.
  • the controller 25 is the main controller used to realize the normal logic of the complete machine and all components.
  • the bottom shell has a cavity, the waterway system, the air supply system, the functional water treatment system 2, the burner 8-part installation, the fan 7-part installation, the first-stage heat exchanger, The secondary heat exchanger, the controller 25 and the hanging plate are all located in the cavity.
  • Hanging plate removable or fixable on the bottom shell; used for hanging and fixing the entire machine installation.
  • the working principle of the gas water heater 100 is as follows:
  • the gas is ignited by the pulse ignition device, and after burning in the combustion chamber 16, high-temperature flue gas is generated and enters the first heat exchange chamber 11 of the primary heat exchanger, and the living gas in the heat exchange tube 15 is Heat water to appropriate temperature. Then, it is sucked into the second heat exchange chamber 12 of the secondary heat exchanger under the suction force of the fan 7, and then discharged from the smoke exhaust port.
  • the waterway working process of the gas water heater 100 Domestic tap water enters the waterway system through the cold water inlet pipe 13.
  • a water flow sensor is provided at the front end of the waterway system to detect the water flow rate, and then the domestic tap water enters the secondary level.
  • the heat exchanger is preheated by the flue gas in it, and then passes through the coil section 151 on the outer wall of the combustion chamber 16.
  • the lower temperature tap water cools the wall of the combustion chamber 16, and at the same time itself The temperature increases. Afterwards, it enters the primary heat exchanger and is heated by the high-temperature flue gas transmitted from the combustion chamber 16 to reach the applicable water temperature, and is then discharged from the water outlet pipe into the domestic water point.
  • the gas water heater 100 cools the combustion chamber 16 by using a water pipe to surround the combustion chamber 16 to form a coil.
  • the lower temperature tap water in the pipe cools the combustion chamber 16 to ensure that the temperature of the combustion chamber 16 is within its normal performance range.
  • the working process of the functional water treatment system 2 is as follows: the functional water treatment pipeline 21 is connected to the second heat exchange chamber 12, and a liquid level gauge is provided outside the second heat exchange chamber 12.
  • the water pump 23 serves as a power device to pump functional water back to the heat exchange pipe 15 after treatment.
  • the one-way valve 24 is connected between the water pump 23 and the cold water inlet pipe 13 to prevent the heat exchange pipe from The cold water flows back within 15 seconds.
  • the liquid level gauge, the water pump 23 and the electronic control board of the controller 25 are electrically connected.
  • the controller 25 controls the water pump 23 to start working and pump the condensed water to the functional water treatment pipe.
  • the functional water is returned to the heat exchange tube 15. At this time, the water level of the functional water in the second heat exchange chamber 12 gradually decreases.
  • the controller 25 controls the water pump 23 to stop working. As the gas water heater 100 continues to work, the functional water in the second heat exchange chamber 12 will accumulate and deposit again, and the water level of the functional water will rise again.
  • the controller 25 controls the water pump 23 to start working.

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Abstract

一种燃气热水器（100），所述燃气热水器（100）包括热水器主体（1）以及功能水处理系统（2）。热水器主体（1）具有相互连通设置的第一换热腔（11）和第二换热腔（12），所述燃气热水器（100）的燃烧室（16）排出的烟气依次经所述第一换热腔（11）和所述第二换热腔（12），所述热水器主体（1）具有连通冷水进水管（13）和热水出水管（14）的换热管（15）。功能水处理系统（2）包括连通所述第二换热腔（12）和所述冷水进水管（13）的功能水处理管路（21）、以及设于所述功能水处理管路（21）上的功能水处理装置（22），以在所述燃气热水器（100）的进水中增加功能水至所述冷水进水管（13）。

Description

燃气热水器
本申请要求于2022年7月29日申请的、申请号为202222013645.1以及于2022年7月29日申请的、申请号为202210919875.6的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本申请涉及热水器技术领域，尤其涉及燃气热水器。
 背景技术
现有热水器中冷凝式燃气热水器能效较高，有助节能减排。冷凝式热燃气热水器也越来越普及，市场需求量巨大。但是，现有热水器的工作特性以及泵的工作寿命仍然有待提高。
 技术问题
本申请的主要目的是提出一种燃气热水器，旨在提供一种提供功能水的燃气热水器的水泵进行泄压。
 技术解决方案
为实现上述目的，本申请提出的一种燃气热水器，包括：
热水器主体，具有相互连通设置的第一换热腔和第二换热腔，所述燃气热水器的燃烧室排出的烟气依次经所述第一换热腔和所述第二换热腔，所述热水器主体具有连通冷水进水管和热水出水管的换热管，所述换热管包括设于所述第一换热腔内的第一换热管段、以及设于所述第二换热腔内的第二换热管段；以及，
功能水处理系统，包括连通所述第二换热腔和所述冷水进水管的功能水处理管路、以及设于所述功能水处理管路上的功能水处理装置，以在所述燃气热水器的进水中增加功能水至所述冷水进水管。
在一实施例中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口与所述冷水进水管连通。
在一实施例中，所述功能水处理管路位于所述第二换热腔的下方；所述
所述功能水处理管路上还设有水泵，所述水泵位于所述功能水处理装置的出水口的一侧。
在一实施例中，所述功能水处理系统还包括控制器和第一检测件，所述第一检测件用以监测所述第二换热腔内的冷凝水的水位，所述控制器与所述第一检测件和所述水泵电性连接，用以根据所述冷凝水的水位，控制所述水泵工作。
在一实施例中，所述功能水处理管路上还设有集液盒，所述集液盒位于所述功能水处理装置和所述水泵之间；
所述功能水处理系统还包括第二检测件，所述第二检测件用以监测所述集液盒内的功能水的水位，所述控制器与所述第二检测件和所述水泵电性连接，用以根据所述集液盒内的功能水的水位，控制所述水泵工作。
在一实施例中，所述功能水处理管路上还设有单向阀，所述单向阀位于所述水泵的出水口的一侧。
在一实施例中，所述燃气热水器还包括循环管路，所述循环管路连通所述冷水进水管和所述热水出水管，以与所述换热管、至少部分所述冷水进水管和至少部分所述热水出水管共同形成循环流路。
在一实施例中，所述循环流路上还设有循环泵。
在一实施例中，所述热水器主体还包括位于所述第一换热腔下方的燃烧室，所述换热管具有绕设于所述燃烧室的周侧的盘管段；
所述第一换热腔和所述第二换热腔在横上间隔布设，所述功能水处理系统设于所述第一换热腔和所述第二换热腔的下方。
在一实施例中，所述热水器主体还包括位于所述第一换热腔下方的燃烧室；
所述第一换热腔和所述第二换热腔在横上间隔布设，所述功能水处理系统与所述第一换热腔在纵向上间隔布设，且位于所述第二换热腔的下方。
在一实施例中，所述燃气热水器还包括泄压装置，所述泄压装置连通于所述水泵，以对所述水泵进行泄压。
在一实施例中，所述泄压装置包括控制阀和泄压管，所述电磁阀设置于所述水泵和所述泄压管之间。
在一实施例中，所述泄压装置分别连接于所述水泵和所述第二换热腔，以将所述水泵内的压力泄至所述第二换热腔。
在一实施例中，所述功能水处理管路上还设有集液盒，所述集液盒位于所述功能水处理装置和所述水泵之间。
在一实施例中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口连通于所述第一换热腔和所述第二换热腔之间。
在一实施例中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口连通于所述热水出水管。
在一实施例中，所述单向阀的导通方向为自所述水泵的出水口到所述功能水处理管路的出水口。
 有益效果
本申请提供的技术方案中，燃气热水器的燃烧室排出的高温烟气依次经所述第一换热腔和所述第二换热腔，因高温烟气与设于所述第二换热腔内的第二换热管段发生热交换时，会形成冷凝水，所述冷凝水沉积于所述第二换热腔内，通过设置功能水处理系统，功能水处理管路将第二换热腔和冷水进水管连通，处于所述功能水处理管路上的功能水处理装置将第二换热腔内排出的冷凝水进行中和、过滤和功能转化处理。使第二换热腔内排出的功能水转化为具有净肤、止痒或抗氧化等功效的功能水，在所述燃气热水器的进水中增加功能水至所述冷水进水管，与此同时，增加水泵作动力装置将处理后的功能水从该系统排出，并且设置泄压装置，释放水泵的较大压力以促进系统的正常运行。
 附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请提供的燃气热水器第一实施例的示意图；
图2为本申请提供的燃气热水器第二实施例的示意图；
图3为本申请提供的燃气热水器第三实施例的示意图；
图4为本申请提供的燃气热水器第四实施例的示意图；
图5为本申请提供的燃气热水器第五实施例的示意图；
图6为本申请提供的燃气热水器第六实施例的示意图；
图7为本申请提供的燃气热水器第七实施例的示意图；
图8为本申请提供的燃气热水器第八实施例的示意图；
图9为无盘管水箱燃气热水器的内部结构示意图；
图10为有盘管水箱燃气热水器的内部结构示意图。
附图标号说明：
标号 名称 标号 名称
100 燃气热水器 21 功能水处理管路
1 热水器主体 22 功能水处理装置
11 第一换热腔 23 水泵
12 第二换热腔 24 单向阀
13 冷水进水管 25 控制器
14 热水出水管 26 第一检测件
15 换热管 27 集液盒
151 盘管段 28 第二检测件
16 燃烧室 3 循环管路
2 功能水回收系统 4 循环泵
5 控制阀 6 泄压管
7 风机 8 燃烧器
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，若本申请实施例中有涉及方向性指示（诸如上、下、左、右、前、后……），则该方向性指示仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，若本申请实施例中有涉及“第一”、“第二”等的描述，则该“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，全文中出现的“和/或”的含义，包括三个并列的方案，以“A和/或B”为例，包括A方案、或B方案、或A和B同时满足的方案。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
现有热水器中冷凝式燃气热水器能效较高，有助节能减排。冷凝式热燃气热水器也越来越普及，市场需求量巨大。
在冷凝式燃气热水器普及率提高的同时，冷凝式燃气热水器同质性愈发严重。在这种情况下，通过单独设立一套利用冷凝水的功能水处理系统，通过泵作动力装置将处理后的冷凝水从该系统排出。但是，泵工作时，系统中产生的较大压力需要释放以促进系统的正常运行。否则影响系统的工作特性以及泵的工作寿命。
为了解决上述问题，本申请提供一种燃气热水器100，图1至图10为本申请提供的燃气热水器100的具体实施例。
发明人发现，在冷凝式燃气热水器普及率提高的同时，冷凝式燃气热水器同质性愈发严重，在这种情况下，通过单独设立一套利用冷凝水的功能水处理系统，通过泵作动力装置将处理后的冷凝水从该系统排出。但是，泵工作时，系统中产生的较大压力需要释放以促进系统的正常运行，否则影响系统的工作特性以及泵的工作寿命。
一般的一级能效冷凝式燃气热水器包括燃烧器8、一级换热器和二级换热器，在燃烧器8的上方安装有水箱，水箱上方连接一级换热器，燃烧器8点火燃烧从燃烧室排出的高温烟气排至一级换热器的换热腔内，从冷水进水管流入的冷水经一级换热器时发生热交换，可将冷水进行加热，进而温度得以升高。而经一级换热器的高温烟气经风机7抽至二级换热器中，但是冷水换热的顺序却是先与二级换热器进行换热后，再与一级换热器换热，也即冷水还未进入一级换热器的时候，先与二级换热器进行换热预热，同时，因烟气在二级换热器处进行换热时，其温度较低，烟气中的水分逐步形成冷凝水，但冷凝水pH值较低，一般pH值在3.0左右而具备一定的腐蚀性。一般处理方式是另接冷凝水排水管将其排出燃气热水器外。该方式带来的问题就是如果冷凝水处理效果不好，会对下水管道的产生腐蚀的影响。此外，另接一根排水管使得管路复杂化，不仅麻烦而且限制了冷凝式燃气热水器的安装环境，也影响用户美观体验。
请参阅图1至图8，针对上述现有的燃气热水器100，本申请所提供的所述燃气热水器100包括热水器主体1和功能水处理系统2，所述热水器主体1具有相互连通设置的第一换热腔11和第二换热腔12，所述燃气热水器100的燃烧室排出的烟气依次经所述第一换热腔11和所述第二换热腔12，所述热水器主体1具有连通冷水进水管13和热水出水管14的换热管15，所述功能水处理系统2包括连通所述第二换热腔12和所述冷水进水管13的功能水处理管路21、以及设于所述功能水处理管路21上的功能水处理装置22，以在所述燃气热水器100的进水中增加功能水至所述冷水进水管13。
本申请提供的技术方案中，燃气热水器100的燃烧室排出的高温烟气依次经所述第一换热腔11和所述第二换热腔12，因高温烟气与设于所述第二换热腔12内的换热管段发生热交换时，会形成冷凝水，所述冷凝水沉积于所述第二换热腔12内，通过设置功能水处理系统2，所述功能水处理管路21将第二换热腔12和换热管15连通，处于所述功能水处理管路21上的功能水处理装置22将第二换热腔12内排出的冷凝水进行中和、过滤和功能转化处理。使第二换热腔12内排出的冷凝水转化为具有净肤、止痒或抗氧化等功效的功能水，在所述燃气热水器的进水中增加功能水至所述冷水进水管，提供一种可以提供功能水的燃气热水器100。将所述功能水处理系统2应用于强抽冷凝燃气热水器上，既能保证燃气热水器达到一级能效，又实现了节水节能省气的功能，还彻底解决了冷凝水排除麻烦的问题。
具体的，所述功能水处理管路21将功能水回收至所述换热管15时，可以是将功能水回收至所述换热管15的进水口处，使得回收的功能水与所述冷水进水管13流入的冷水共同经两个换热腔进行换热后，再从所述热水出水管14一起排出；当然也可以将功能水回收至所述换热管的中部，功能水可以不经预热，直接参与一级换热后，再从所述热水出水管14一起排出；当然也可以时将功能水回收至所述热水出水管14之间，功能水可以不参与换热，直接与所述换热管15内二次加热后的热水一起混合后，经所述热水出水管14排出。而在本实施例中，所述功能水处理管路21的进水口直接与所述第二换热腔12的排水口连通设置，所述功能水处理管路21的出水口与所述冷水进水管13连通，这样从所述换热腔的排水口排出的功能水与所述冷水进水管13流入的冷水共同依次经所述第二换热腔12和所述第一换热腔11进行换热后，再从所述热水出水管14一起排出，这样回收的功能水参与共同换热，不会影响出水温度。
具体的，为了使得所述第二换热腔12内的冷凝水能够顺利的排出，并且方便经所述功能水处理管路21处理后形成的功能水又能重新流回至所述换热管15，在本实施例中，所述功能水处理管路21位于所述第二换热腔12的下方，相应的，所述第二换热腔12的排水口设置于所述第二换热腔12的底部，这样所述第二换热腔12内的功能水通过自身的重力作用就能够流至所述功能水处理管路21，但是因燃气热水器100的位置布置关系原因，所述第二换热腔12处于所述功能水处理管路21的上方，所述功能水处理管路21内的功能水需要重新回至所述换热管15并能够向上输送至所述换热管15，则需要一定的向上的压力驱动功能水活动，在本实施例中，所述功能水处理管路21上还设有水泵23，所述水泵23位于所述功能水处理装置22的出水口的一侧，通过所述水泵23的抽排水提供一定的动力，使得所述功能水处理管路21内的功能水可以顺利的流回至所述换热管15。
与此同时，泵工作时，系统中产生的较大压力需要释放以促进系统的正常运行。否则影响系统的工作特性以及水泵23的工作寿命，因此，所述燃气热水器100还包括泄压装置，所述泄压装置连通于所述水泵23，以对所述水泵23进行泄压，具体的，所述泄压装置可以是控制阀5，所述控制阀5用于控制所述水泵23的后端，从而将所述水泵23内的高压释放到低压环境中，最简单的，可以直接将所述水泵23中的高压释放到空气中。更具体的，所述控制阀5可以是电磁阀，通过电磁控制所述水泵23与低压环境的连通，所述控制阀5还可以是弹簧式泄压阀，通过调整阀门中的弹簧力长短，来调节压紧力，当水泵23中压力高于设定值时，弹簧被反向压迫，从而密封顶针打开，水泄压流出，起到保护水泵23，调节系统压力的作用，在此不做限定。
在本实施例中的方案，增加水泵23作动力装置将处理后的功能水从该系统排出，并且设置泄压装置，释放水泵23的较大压力以促进系统的正常运行。
具体的，所述泄压装置包括控制阀5和泄压管6，所述电磁阀设置于所述水泵23和所述泄压管6之间，从而在水泵23中的压力达到设定值，或者需要对水泵23进行泄压，或者需要将水泵23内的空气排出时，控制阀5打开，将水泵23内的压力通过所述泄压管转移到低压环境中。
具体的，泄压管6可以是直接连通空气的，从而直接将水泵23中的气体排出至空气中，如此设置，最为简单稳定，但是会对环境造成影响，当然，所述泄压管6可以是连通第二换热腔12。
为了消除对环境的影响，所述泄压装置分别连接于所述水泵23和所述第二换热腔12，以将所述水泵23内的压力泄至所述第二换热腔12，需要说明的是，第二换热腔12是和空气相连通的，具有低压环境，因此，在需要对水泵23进行泄压时，所述泄压装置开启，从而直接将水泵中的高压水气泄压至第二换热腔12中，如此设置，整个燃气热水器不会对外排出水气，对环境没有影响，而且，高压水气加注至第二换热腔12中，会对第二换热腔12有一定程度的加压，加速第二换热腔12内的冷凝水的排出。
进一步地，在本实施例中，所述功能水处理系统2还包括控制器25、以及第一检测件26，所述第一检测件26用以监测所述第二换热腔12内的所述功能水的水位，所述第一检测件26具有设于所述第二换热腔12内的液位计，所述控制器25与所述第一检测件26、所述水泵23电性连接，在所述第一检测件26监测到所述冷凝水沉积的水位达到第一设定水位时，所述控制器25控制所述水泵23开始工作，将功能水抽吸至所述功能水处理管路21，在经所述功能水处理装置22处理后，并将功能水送回至所述换热管15中，此时，可以理解的是，所述第二换热腔12内的冷凝水的水位逐步降低，在所述第一检测件26监测到所述冷凝水的水位达到第二设定水位时，所述第二设定水位可以设置为所述冷凝水被抽完时的状态，此时所述控制器25控制所述水泵23停止工作。随着所述燃气热水器100继续工作时，所述第二换热腔12内的冷凝水又会再次聚集沉积，所述冷凝水的水位再次重新升高，当所述第一检测件26再次监测到所述冷凝水沉积的水位达到第一设定水位时，所述控制器25又控制所述水泵23开始工作，如此反复上述的步骤实现持续的回收循环。
进一步地，因所述水泵23工作时会产生持续的噪音，使得用户的使用舒适度受影响，故，在另一实施例中，所述功能水处理管路21上还设有集液盒27，所述集液盒27位于所述功能水处理装置22和所述水泵23之间，所述功能水处理系统2还包括第二检测件28，所述第二检测件28用以监测所述集液盒27内的功能水的水位，所述控制器25与所述第二检测件28和所述水泵23电性连接，用以根据所述集液盒27内的功能水的水位，控制所述水泵23工作。在所述第二检测件28监测到所述功能水沉积的水位达到第三设定水位时，所述控制器25控制所述水泵23开始工作，将功能水抽吸至所述冷水进水管13，将功能水送回至所述换热管15中，此时，可以理解的是，所述集液盒27内的功能水的水位逐步降低，在所述第二检测件28监测到所述功能水的水位达到第四设定水位时，所述第四设定水位可以设置为所述功能水被抽完时的状态，此时所述控制器25控制所述水泵23停止工作。随着所述燃气热水器100继续工作时，所述第二换热腔12内的冷凝水又会再次聚集沉积，同时所述功能水的水位再次重新升高，当所述第二检测件28再次监测到所述功能水沉积的水位达到第三设定水位时，所述控制器25又控制所述水泵23开始工作，在所述集液盒27内的水位从所述第四设定水位上升至所述第三设定水位的过程中，所述水泵23停止工作，从而减少所述水泵23持续产生噪音。
与此同时，还可以将水泵23的压力泄压至所述集液盒27中，具体的，所述泄压装置分别连接于所述水泵23和所述集液盒27，以将所述水泵23内的压力泄至所述集液盒27。
具体的，所述功能水处理管路21将功能水回收至所述换热管15时，可以是将功能水回收至所述换热管15的进水口处，使得回收的功能水与所述冷水进水管13流入的冷水共同经两个换热腔进行换热后，再从所述热水出水管14一起排出；当然也可以将功能水回收至所述换热管15的中部，功能水可以不经预热，直接参与一级换热后，再从所述热水出水管14一起排出；当然也可以是将功能水回收至所述热水出水管14之间，功能水可以不参与换热，直接与所述换热管15内二次加热后的热水一起混合后，经所述热水出水管14排出。
具体的，所述功能水处理管路21的进水口直接与所述第二换热腔12的排水口连通设置，所述功能水处理管路21的出水口与所述冷水进水管13连通，这样从所述换热腔的排水口排出的功能水与所述冷水进水管13流入的冷水共同依次经所述第二换热腔12和所述第一换热腔11进行换热后，再从所述热水出水管14一起排出，这样回收的功能水参与共同换热，不会影响出水温度。
还可以是，所述功能水处理管路21的进水口与所述第二换热腔12的排水口连通，所述功能水处理管路21的出水口连通于所述第一换热腔1和所述第二换热腔12之间，如此设置，所述功能水处理管路21的进水口与所述第二换热腔12的排水口连通，所述功能水处理管路21的出水口连通于所述第一换热腔11和所述第二换热腔12之间，从而避免功能水对冷水进水管的影响。
还可以是，所述功能水处理管路21的进水口与所述第二换热腔12的排水口连通，所述功能水处理管路21的出水口连通于所述热水出水管14，如此设置，所述功能水处理管路21的进水口与所述第二换热腔12的排水口连通，所述功能水处理管路21的出水口连通于所述热水出水管14，从而使得功能水尽可能靠近用水点，也能避免其中功能性物质不被第一换热腔11中的高温所分解而影响其功效。
进一步地，在本实施例中，所述功能水处理管路21上还设有单向阀24，所述单向阀24位于所述水泵23的出水口的一侧，且所述单向阀24的导通方向为自所述水泵23的出水口到所述功能水处理管路21的出水口，所述单向阀24限制水流方向，即所述功能水处理管路21中的水只能流向所述连接管段153，以避免所述冷水进水管13流入的冷水倒流至所述功能水处理管路21中。
当然，在具有零冷水系统的燃气热水器上，也可以采用上升的功能水处理系统来增加功能水，在另一实施例中，所述燃气热水器100还包括循环管路3，所述循环管路3连通所述冷水进水管13和所述热水出水管14，以与所述换热管15、至少部分所述冷水进水管13和至少部分所述热水出水管14共同形成循环流路。
进一步地，在该实施例中，所述循环流路上还设有循环泵4，所述循环泵4作为零冷水循环的动力装置为所述循环流路提供动力。
需要说明的是，请参阅图9和图10，因现有的燃气热水器100分为有盘管水箱燃气热水器和无盘管水箱热水器。
有盘管水箱燃气热水器的工作过程为：生活自来水经过冷水进水管进入水路系统，在水路系统的前端设置有水流量传感器可检测水流量大小，随后生活自来水进入到二级换热器内被其内的烟气进行预热，之后经过水箱外壁面的盘管，该较低温度的自来水对水箱壁面进行降温，同时本身温度提高，之后水路系统中的自来水进入到一级换热器中被从水箱传来的高温烟气加热达到适用水温，随后从热水出水管排出进入生活用水点。
而无盘管水箱燃气热水器的燃烧室水箱体外没有水管盘管环绕对水箱进行降温，而是采用双层不锈钢板的燃烧室结构，冷空气在风机7抽力的作用下，通过最外层壁面上的孔进入内外两层不锈钢之间的夹层，冷风在夹层之间对流换热对水箱进行冷却降温。
进一步地，在一实施例中，所述热水器主体1还包括位于所述第一换热腔11下方的燃烧室16，所述换热管151具有绕设于所述燃烧室16的周侧的盘管段151，也即所述燃气热水器100为有盘管水箱燃气热水器，所述第一换热腔11和所述第二换热腔12在横上间隔布设，为了尽可能的利用现有的空间，可将所述功能水处理系统2设于所述第一换热腔11和所述第二换热腔12的下方，具体地可将所述电磁阀、所述水泵23、所述功能水处理装置22设置于所述燃烧室16的下方，可将所述控制器25、所述单向阀24等设置于所述第二换热腔12的下方。所述布局方式可有效利用现有空间，使得所述燃气热水器100结构更为紧凑，并且减少功能水回收利用系统水路路程。
而在另一实施例中，请参阅图9和图10，在所述燃气热水器100为无盘管水箱燃气热水器时，同样为了使得所述燃气热水器100结构更为紧凑，并且减少功能水回收利用系统水路路程，所述热水器主体1还包括位于所述第一换热腔11下方的燃烧室16，所述第一换热腔11和所述第二换热腔12在横上间隔布设，所述功能水处理系统2与所述第一换热腔11在纵向上间隔布设，且位于所述第二换热腔12的下方。具体地可将所述电磁阀、所述水泵23、所述功能水处理装置22、所述控制器25、所述单向阀24等设置于所述第二换热腔12的下方。
以上述的有盘管水箱燃气热水器为例进行说明，所述燃气热水器100的具体结构如下：
水路系统，包括冷水进水管13，所述冷水进水管13件中加装有水流量传感器，连接所述冷水进水管13的所述换热管151和所述第二换热管段152、所述盘管段151、用于输出的所述热水出水管14；水路系统实现生活自来水进水并经过所述换热管151和所述第二换热管段152再从所述热水出水管14路排出，再到达到各个生活用水点。
供气系统，包括燃气输入口端，比例阀，连接燃气输入口的分气杆；供气系统将燃气安全准确地输送至燃烧器部装内，并将燃气的化学能转化为热能为生活自来水所利用。
功能水处理系统2，包括连接所述第二换热腔12的排水口的所述功能水处理管路21，所述功能水处理装置22，所述功能水处理装置22的出水口接有一个所述第一三通阀26，所述第一三通阀26的一端连接所述水泵23，所述水泵23的出水口方向至冷水进水管13，所述水泵23与所述冷水进水管13之间设置有所述单向阀24，所述第二三通阀27的另一端连接所述电磁阀，所述电磁阀的出水口与所述第二换热腔12连通；
燃烧器部装，内设多个火排；
风机7部装，所述风机7部装进口端连接热交换器6的出口端，所述风机7部装的出口端连接二级换热器的烟气进口端；风机7部装用于将燃气和空气抽吸至燃烧室16中进行燃烧，同时将排烟排至二级换热器并从排烟口中排出。
一级换热器，内设多个翅片，其下方设有无氧铜燃烧室16作为燃气燃烧室，燃烧室温度很高，所以在所述无氧铜燃烧室16外部饶有盘管，用于对燃烧室16进行降温，以延长燃烧室16工作寿命，所述一级换热器内形成所述第一换热腔11；
二级换热器，所述二级换热器内形成所述第二换热腔12，所述第二换热腔12内设有所述液位计的探针；二级换热器实现烟气的再次降温同时对进水进行预热，实现烟气余热的再利用，是提高能效的关键部件。
所述控制器25；用于整机和所有部装工作正常逻辑实现的主控制器。
底壳，其具有容腔，所述水路系统、所述供气系统、所述功能水处理系统2、所述燃烧器8部装、所述风机7部装、所述一级热换器、所述二级换热器、所述控制器25、所述挂板均设于所述容腔内。
挂板，可拆卸或可固定于所述底壳之上；用于悬挂和固定整机安装。
所述燃气热水器100的工作原理，其工作原理如下：
所述燃气热水器100气路工作过程：燃气从燃气输入口端进入，所述比例阀可根据负荷大小进行调节，随后经过所述分气杆后再进入燃烧器8部装。通过脉冲点火装置引燃燃气，在所述燃烧室16内燃烧后产生高温烟气进入所述一级换热器的所述第一换热腔11中，将所述换热管15内的生活用水加热到适用温度。随后在所述风机7的抽吸力下抽吸至二级换热器的所述第二换热腔12中，之后从排烟口排出。
所述燃气热水器100水路工作过程：生活自来水经过所述冷水进水管13进入所述水路系统，所述水路系统的前端设置有水流量传感器可检测水流量大小，随后生活自来水进入到所述二级换热器内被其内的烟气进行预热，之后经过所述燃烧室16外壁面的所述盘管段151，该较低温度的自来水对所述燃烧室16的壁面进行降温，同时本身温度提高。之后进入到所述一级换热器中被从燃烧室16传来的高温烟气加热达到适用水温，随后从出水管部排出进入生活用水点。
所述燃气热水器100对燃烧室16的冷却方式是采用水管在燃烧室16外环绕形成盘管，管内较低温度的自来水对燃烧室16进行降温，从而保证燃烧室16温度处于其正常性能范围之内。
所述功能水处理系统2工作过程：通过所述功能水处理管路21连通所述第二换热腔12，所述第二换热腔12外设有液位计。所述水泵23作为动力装置将功能水处理后泵回至所述换热管15，所述水泵23与所述冷水进水管13之间连接有所述单向阀24以避免所述换热管15内冷水倒流。所述液位计、所述水泵23和所述控制器25的电控板电性连接。在所述第一检测件26监测到所述冷凝水沉积的水位达到第一设定水位时，所述控制器25控制所述水泵23开始工作，将冷凝水抽吸至所述功能水处理管路21，在经所述功能水处理装置22处理后，并将功能水送回至所述换热管15中，此时所述第二换热腔12内的功能水的水位逐步降低，在所述第一检测件26监测到所述功能水的水位达到第二设定水位时，所述第二设定水位可以设置为所述功能水被抽完时的状态，此时所述控制器25控制所述水泵23停止工作，随着所述燃气热水器100继续工作时，所述第二换热腔12内的功能水又会再次聚集沉积，所述功能水的水位再次重新升高，当所述第一检测件26再次监测到所述功能水沉积的水位达到第一设定水位时，所述控制器25又控制所述水泵23开始工作。
以上所述仅为本申请的优选实施例，并非因此限制本申请的专利范围，凡是在本申请的实用新型构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (18)

  1. 一种燃气热水器，其中，包括：
    热水器主体，具有相互连通设置的第一换热腔和第二换热腔，所述燃气热水器的燃烧室排出的烟气依次经所述第一换热腔和所述第二换热腔，所述热水器主体具有连通冷水进水管和热水出水管的换热管；以及，
    功能水处理系统，包括连通所述第二换热腔和所述冷水进水管的功能水处理管路、以及设于所述功能水处理管路上的功能水处理装置，以在所述燃气热水器的进水中增加功能水至所述冷水进水管。
  2. 如权利要求1所述的燃气热水器，其中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口与所述冷水进水管连通。
  3. 如权利要求1或2所述的燃气热水器，其中，所述功能水处理管路位于所述第二换热腔的下方；
    所述功能水处理管路上还设有水泵，所述水泵位于所述功能水处理装置的出水口的一侧。
  4. 如权利要求3所述的燃气热水器，其中，所述功能水处理系统还包括控制器和第一检测件，所述第一检测件用以监测所述第二换热腔内的冷凝水的水位，所述控制器与所述第一检测件和所述水泵电性连接，用以根据所述冷凝水的水位，控制所述水泵工作。
  5. 如权利要求4所述的燃气热水器，其中，所述功能水处理管路上还设有集液盒，所述集液盒位于所述功能水处理装置和所述水泵之间；
    所述功能水处理系统还包括第二检测件，所述第二检测件用以监测所述集液盒内的功能水的水位，所述控制器与所述第二检测件和所述水泵电性连接，用以根据所述集液盒内的功能水的水位，控制所述水泵工作。
  6. 如权利要求3至5中任意一项所述的燃气热水器，其中，所述功能水处理管路上还设有单向阀，所述单向阀位于所述水泵的出水口的一侧。
  7. 如权利要求1至6中任意一项所述的燃气热水器，其中，所述燃气热水器还包括循环管路，所述循环管路连通所述冷水进水管和所述热水出水管，以与所述换热管、至少部分所述冷水进水管和至少部分所述热水出水管共同形成循环流路。
  8. 如权利要求7所述的燃气热水器，其中，所述循环流路上还设有循环泵。
  9. 如权利要求1至8中任意一项所述的燃气热水器，其中，所述热水器主体还包括位于所述第一换热腔下方的燃烧室，所述换热管具有绕设于所述燃烧室的周侧的盘管段；
    所述第一换热腔和所述第二换热腔在横上间隔布设，所述功能水处理系统设于所述第一换热腔和所述第二换热腔的下方。
  10. 如权利要求1至9中任意一项所述的燃气热水器，其中，所述热水器主体还包括位于所述第一换热腔下方的燃烧室；
    所述第一换热腔和所述第二换热腔在横上间隔布设，所述功能水处理系统与所述第一换热腔在纵向上间隔布设，且位于所述第二换热腔的下方。
  11. 如权利要求3所述的燃气热水器，其中，所述燃气热水器还包括：
    泄压装置，所述泄压装置连通于所述水泵，以对所述水泵进行泄压。
  12. 如权利要求11所述的燃气热水器，其中，所述泄压装置包括控制阀和泄压管，所述控制阀设置于所述水泵和所述泄压管之间。
  13. 如权利要求11或12所述的燃气热水器，其中，所述泄压装置分别连接于所述水泵和所述第二换热腔，以将所述水泵内的压力泄至所述第二换热腔。
  14. 如权利要求3至13中任意一项所述的燃气热水器，其中，所述功能水处理管路上还设有集液盒，所述集液盒位于所述功能水处理装置和所述水泵之间。
  15. 如权利要求14所述的燃气热水器，其中，所述泄压装置分别连接于所述水泵和所述集液盒，以将所述水泵内的压力泄至所述集液盒。
  16. 如权利要求1至15中任意一项所述的燃气热水器，其中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口连通于所述第一换热腔和所述第二换热腔之间。
  17. 如权利要求1至16中任意一项所述的燃气热水器，其中，所述功能水处理管路的进水口与所述第二换热腔的排水口连通，所述功能水处理管路的出水口连通于所述热水出水管。
  18. 如权利要求6所述的燃气热水器，其中，所述单向阀的导通方向为自所述水泵的出水口到所述功能水处理管路的出水口。
PCT/CN2023/105407 2022-07-29 2023-06-30 燃气热水器 Ceased WO2024022040A1 (zh)

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