A new type of condensing water heater

Abstract

The utility model discloses a novel condensing water heater, which relates to the technical field of water heaters. The novel condensing water heater comprises an outer shell, and also comprises: an enamel inner tank, the enamel inner tank is located in the outer shell, and the enamel inner tank is used for water storage, and a polyurethane fluorine-free integral foaming insulation layer is provided between the enamel inner tank and the outer shell; a concave tray, the concave tray is embedded in the upper end of the outer shell; a burner, the burner is located between the upper end of the enamel inner tank and the upper end of the outer shell; a variable frequency fan, the variable frequency fan is installed in the concave tray, and the air inlet end of the variable frequency fan is provided with a combustible gas inlet pipe, and the air inlet end of the variable frequency fan is provided with a venturi tube. The flue gas in the spiral smoke pipe of the inner tank of the utility model can exchange heat with water through the pipe wall, especially when the flue gas descends to the lower part of the inside of the enamel inner tank, it exchanges heat with the cold water in the lower part of the enamel inner tank, and the flue gas in the spiral tube can be quickly condensed, and the component integration effect is good, the assembly is convenient, and the space occupied is small.

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a novel condensing water heater. Background Art

[0002] A water heater is a device that uses various physical principles to increase the temperature of cold water into hot water within a certain period of time. According to different principles, it can be divided into electric water heaters, gas water heaters, solar water heaters, magnetic water heaters, air water heaters, heating water heaters, etc.

[0003] The components of the gas water heater in the prior art are not well integrated and are not easy to assemble. Summary of the invention

[0004] The utility model provides a novel condensing water heater, which has the advantage of good condensation effect and solves the problem of poor integration effect of working parts in the prior art.

[0005] In order to achieve the purpose of keeping the smoke exhaust process in a condensed state and achieving a good integration effect, the utility model provides the following technical solutions: a new type of condensing water heater, comprising an outer shell, and also comprising: an enamel inner tank, the enamel inner tank is located in the outer shell, and the enamel inner tank is used to store water, and a polyurethane fluorine-free integral foaming insulation layer is provided between the enamel inner tank and the outer shell; a concave tray, the concave tray is embedded in the upper end of the outer shell; a burner, the burner is located between the upper part of the enamel inner tank and the upper end of the outer shell; a variable frequency fan, the variable frequency fan is installed in the concave tray, and the air inlet end of the variable frequency fan is provided with a combustible gas inlet pipe, and the air inlet end of the variable frequency fan is provided with a venturi tube, The venturi tube is used to let in air, and an exhaust pipe is fixed to the exhaust end of the variable frequency fan, the lower end of the exhaust pipe enters the burner, and an electromagnetic valve is provided on the combustible gas intake pipe; an air intake filter is installed on the side of the concave tray close to the venturi tube, and an air inlet is provided on the upper cover at a position opposite to the air intake filter; an ignition needle, the ignition needle is arranged at the lower part of the concave tray, and the ignition needle is used to ignite the combustible gas in the burner; a fire viewing hole, the fire viewing hole is opened in the middle of the concave tray, and the fire viewing hole is used to observe the flame in the burner; an ion needle, the ion needle is installed at the lower part of the concave tray, and the ion needle is used to control the opening and closing of the electromagnetic valve.

[0006] As a preferred technical solution of the utility model, cold water inlets are provided at the lower sides of the outer shell and the enamel inner tank, and hot water outlets are provided at the upper sides of the outer shell and the enamel inner tank.

[0007] As a preferred technical solution of the utility model, a positioning plate is installed on one side of the concave tray, and an ignition high-voltage package and a controller are integrated on the positioning plate; the controller controls the ignition of the ignition needle through the ignition high-voltage package to make the combustible gas in the combustion chamber burn; cold water temperature sensors are installed on both sides of the outer shell and the enamel inner tank near the cold water inlet, and the cold water temperature sensor is used to detect the temperature of the lower cold water in the enamel inner tank; hot water temperature sensors are installed on both sides of the outer shell and the enamel inner tank near the cold water inlet, and the hot water temperature sensor is used to detect the temperature of the upper hot water in the enamel inner tank.

[0008] As a preferred technical solution of the utility model, a wind pressure switch is also integrated on the positioning plate; the wind pressure switch controls the speed of the variable frequency fan through a controller to adjust the air supply of the variable frequency fan.

[0009] As a preferred technical solution of the utility model, an upper cover is embedded in the upper end of the concave tray, and a bottom cover is embedded in the lower end of the shell.

[0010] As a preferred technical solution of the utility model, a sewage pipe is arranged in the shell, a sewage outlet adapted to the sewage pipe is opened on the shell, and the upper end of the sewage pipe is inserted into the bottom of the enamel inner tank.

[0011] As a preferred technical solution of the utility model, a smoke exhaust port is provided on the lower side of the shell, and at least two smoke exhaust pipes are provided in the enamel inner tank. The upper end of the smoke exhaust pipe is connected to the burner, and the lower end of the smoke exhaust pipe is fixedly connected to the smoke exhaust port.

[0012] As a preferred technical solution of the utility model, a smoke exhaust temperature sensor is installed on the upper side of the smoke exhaust port, and the smoke exhaust temperature sensor is used to detect the temperature of the smoke exhausted from the smoke exhaust port.

[0013] As a preferred technical solution of the utility model, a T / P safety valve interface is provided above one side of the outer shell and the enamel inner tank, and the T / P safety valve interface is used to install a pressure relief valve.

[0014] As a preferred technical solution of the utility model, a touch display screen is installed on the upper end of one side of the shell, and an opening button is provided on one side of the touch display screen.

[0015] Compared with the prior art, the utility model provides a new condensing water heater, which has the following beneficial effects:

[0016] 1. This new condensing water heater integrates the combustible gas inlet pipe, variable frequency fan, ignition needle, fire viewing hole and ion needle into a concave tray at the upper end of the equipment, with good integration effect, convenient assembly and less space.

[0017] 2. This new condensing water heater is equipped with multiple smoke exhaust pipes, which has a better condensation effect on smoke. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is the appearance diagram of the utility model from the first perspective;

[0019] Figure 2 It is a schematic diagram of the utility model without the upper cover assembled;

[0020] Figure 3 This is a schematic diagram of the internal structure of the concave tray of the utility model;

[0021] Figure 4 This is the appearance diagram of the utility model from the second viewing angle;

[0022] Figure 5 This is an exploded view of the air intake filter element of the utility model;

[0023] Figure 6 This is a second viewing angle diagram of the present invention.

[0024] In the figure: 1. Touch screen; 101. Start button; 2. Hot water outlet; 3. Hot water temperature sensor; 4. Cold water temperature sensor; 5. Cold water inlet; 6. T / P safety valve interface; 7. Smoke exhaust temperature sensor; 8. Smoke exhaust port; 9. Sewage outlet; 10. Solenoid valve; 11. Combustible gas inlet pipe; 12. Magnesium rod interface; 13. Ignition needle; 14. Fire viewing hole; 15. Ion needle; 16. Wind pressure switch; 17. Ignition high-voltage package; 18. Controller; 19. Relay; 20. Frequency conversion fan; 21. Polyurethane fluorine-free integral foam insulation layer; 22. Shell; 221. Upper cover; 223. Bottom cover; 23. Enamel liner; 24. Concave tray; 25. Exhaust pipe; 26. Venturi tube; 27. Air inlet; 28. Intake filter element. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] Below through Figure 1 - Figure 5 A novel condensing water heater according to an embodiment of the utility model is described.

[0027] like Figure 1 and Figure 2As shown, the utility model provides a novel condensing water heater, including an outer shell 22 and an enamel inner tank 23. The enamel inner tank 23 is located in the outer shell 22 and is used to store water. The enamel inner tank 23 has strong corrosion resistance and can extend the service life of the entire machine.

[0028] A concave tray 24 and a burner are also provided. The concave tray 24 is embedded in the upper end of the outer shell 22. The burner is located between the upper part of the enamel inner pot 23 and the upper end of the outer shell 22. When the burner is burning, it can radiate 360° heat to the enamel inner pot 23, thereby heating the water in the enamel inner pot 23, so that the temperature of the upper part of the enamel inner pot 23 is higher, while the temperature of the lower part is lower.

[0029] In addition, a polyurethane fluorine-free integral foaming insulation layer 21 is provided between the enamel liner 23 and the outer shell 22, which has a good insulation effect.

[0030] Preferably, the outer shell 22 and the enamel inner tank 23 are configured to be circular, which can increase the internal water capacity and reduce the floor space.

[0031] In addition, the volume of the enamel inner container 23 is set to 450L.

[0032] like Figure 2 -and Figure 3 As shown, the concave tray 24 is used to close the upper end of the housing 22 on the one hand, and to carry electronic components on the other hand. The reason why it is set to be concave is to expand its overall assembly area and provide more assembly positions for assembling electronic components.

[0033] Preferably, a magnesium rod interface 12 is provided on the concave tray 24 so that the magnesium rod can be assembled in the enamel inner tank 23. The magnesium rod absorbs impurities in the water, thereby improving the cleanliness of the water.

[0034] like Figure 2 - Figure 4 In order to supply gas to the combustion chamber (combustible gas, preferably natural gas), a variable frequency fan 20 is installed in the concave tray 24, and a combustible gas inlet pipe 11 is provided at the air inlet end of the variable frequency fan 20 for delivering the combustible gas into the variable frequency fan 20, and a venturi tube 26 is provided at the air inlet end of the variable frequency fan 20 for introducing air, and an exhaust pipe 25 is fixed at the exhaust end of the variable frequency fan 20, and the lower end of the exhaust pipe 25 is embedded in the combustion chamber, so that the gas in the variable frequency fan 20 is delivered into the combustion chamber through the exhaust pipe 25, and the air and the combustible gas are fully premixed in the combustion chamber.

[0035] In addition, an electromagnetic valve 10 is provided on the combustible gas intake pipe 11, and the electromagnetic valve 10 can control the on-off of the combustible gas intake pipe 11 and the intake volume per unit time.

[0036] Reference Figure 2 and Figure 3 An air intake filter 28 is installed on one side of the upper cover 221 close to the venturi tube 26. The air intake filter 28 can filter the air sucked in by the variable frequency fan 20 to reduce impurities generated by combustion. An air inlet 27 is provided on the upper cover 221 at a position opposite to the air intake filter 28 to allow air to enter the air intake filter 28.

[0037] like Figure 5 The preferred air intake filter element 28 should include a filter element shell and a pleated fiber filter element located in the filter element shell.

[0038] like Figure 2 and Figure 3 An ignition needle 13, a fire viewing hole 14 and an ion needle 15 are also provided. The ignition needle 13 is arranged at the lower part of the concave tray 24. When the ignition needle 13 is working, it can ignite the combustible gas in the combustion chamber, so that the inside of the combustion chamber can burn; the fire viewing hole 14 is opened in the middle of the concave tray 24, and the fire viewing hole 14 is used to observe the combustion situation in the combustion chamber; the ion needle 15 is installed at the lower part of the concave tray 24, and the ion needle 15 is used to control the opening and closing of the electromagnetic gas valve 10. Specifically, when the ignition needle 13 is ignited, the ion needle 15 uses the positive and negative ions in the flame to form an electric current, and the electric current acts on the electromagnetic gas valve 10 to keep it open. When the flame is extinguished, the current disappears, and the electromagnetic gas valve 10 cuts off the gas source. The ion sensing sensitivity is slightly higher than that of the thermocouple, so the sensing effect is better.

[0039] Using a fully premixed combustion method, the combustible gas ignites and burns in a closed combustion chamber, with a faster combustion speed and higher efficiency.

[0040] In order to discharge the smoke generated by the combustion in the combustion chamber, a smoke exhaust port 8 is provided on one side of the lower side of the outer shell 22, and at least two smoke exhaust pipes are provided in the enamel inner tank 23. The upper end of the smoke exhaust pipe is connected to the burner, and the lower end of the smoke exhaust pipe is fixedly connected to the smoke exhaust port 8, so that the waste smoke generated after the combustion in the combustion chamber can be discharged from the smoke exhaust pipe, and the smoke in the smoke exhaust pipe can exchange heat with water through the pipe wall. In particular, when the smoke descends in the smoke exhaust pipe to the bottom of the enamel inner tank 23, it exchanges heat with the cold water in the lower part of the enamel inner tank 23, which can quickly condense the smoke in the smoke exhaust pipe. On the one hand, it reduces the humidity of the smoke, and on the other hand, it can reduce the temperature of the exhausted smoke. In addition, the temperature of the water can be increased during the heat exchange between the smoke and water, thereby further improving the heat utilization efficiency.

[0041] Preferably, a smoke exhaust temperature sensor 7 is installed on the upper side of the smoke exhaust port 8. The smoke exhaust temperature sensor 7 is used to detect the temperature of smoke exhausted from the smoke exhaust port 8, thereby obtaining the smoke exhaust temperature and knowing whether it has reached the required exhaust temperature.

[0042] In addition, the water vapor in the flue gas is recovered and condensed during condensation, which lowers the flue gas temperature, reduces the generation of particulate matter, and thereby reduces the emission of waste gases such as CO and nitrogen oxides. The nitrogen oxide emissions meet the national standard Level 5 and comply with Beijing's energy-saving emission standards.

[0043] Furthermore, the preferred power of this water heater is 99kw, with high thermal efficiency, large capacity and power, fast heating speed and high hot water yield, which can meet the requirements of large-scale, multi-point, centralized and continuous supply of hot water. The closed design has its own volume, silent combustion, low noise, fully automatic operation, stable performance, energy saving and gas saving, and long service life.

[0044] Furthermore, due to the cooling of the smoke, the subsequent smoke exhaust port 8 can be connected to a PVC smoke pipe for smoke exhaust.

[0045] like Figure 1 , Figure 2 and Figure 4 As shown, in order to achieve the in and out flow of water, cold water inlets 5 are provided at the lower sides of the outer shell 22 and the enamel inner tank 23. The two cold water inlets 5 can speed up the speed of cold water entering, and hot water outlets 2 are provided at the upper sides of the outer shell 22 and the enamel inner tank 23 to speed up the speed of hot water outflow.

[0046] Combination Figure 3 - Figure 5 As shown, the new condensing water heater provided by the embodiment of the utility model is provided with a positioning plate on one side of the concave tray 24, and the positioning plate is integrated with a wind pressure switch 16, an ignition high-voltage package 17, a controller 18 and a relay 19.

[0047] The controller 18 controls the ignition needle 13 to ignite through the ignition high-voltage package 17 to make the combustible gas in the combustion chamber burn. In order to achieve automatic ignition, Figure 1 A cold water temperature sensor 4 is installed on both sides of the outer shell 22 and the enamel inner tank 23 near the cold water inlet 5. The cold water temperature sensor 4 is used to detect the cold water temperature at the bottom of the enamel inner tank 23. A hot water temperature sensor 3 is installed on both sides of the outer shell 22 and the enamel inner tank 23 near the cold water inlet 5. The hot water temperature sensor 3 is used to detect the hot water temperature at the upper part of the enamel inner tank 23.

[0048] The reason why two groups of temperature sensors are set in this embodiment is to better trigger heating, that is, in actual use, when the drainage temperature detected by the upper hot water temperature sensor 3 is still relatively high, the temperature below the enamel inner tank 23 is already very low, so it is far from enough to rely solely on the upper hot water temperature sensor 3 to trigger the combustion heating of the combustion chamber. Therefore, a cold water temperature sensor 4 is set. When the temperature of the bottom cold water temperature sensor 4 and the hot water temperature sensor 3 are both lower than the corresponding threshold value, the combustion chamber starts the combustion operation. The two groups of temperature sensors here should be electrically connected to the input end of the controller 18, and then the controller 18 can control the ignition needle 13 to ignite through the ignition high-voltage package 17.

[0049] The wind pressure switch 16 controls the speed of the variable frequency fan 20 through the controller 18 to adjust the air supply of the variable frequency fan 20, thereby adjusting the intensity of combustion to achieve the required water temperature, and the relay 19 is used to turn the power on and off the equipment.

[0050] like Figure 1 An upper cover 221 is embedded in the upper end of the concave tray 24, and a bottom cover 223 is embedded in the lower end of the shell 22. It is best to set supporting feet under the bottom cover 223.

[0051] The total height of the upper cover 221, the outer shell 22, the bottom cover 223 and the supporting feet is 1959 mm, and the outer diameter of the outer shell 22 is 850 mm.

[0052] A sewage pipe is arranged in the shell 22, the upper end of which is inserted into the bottom of the enamel inner tank 23, the shell 22 is provided with a sewage outlet 9 adapted to the sewage pipe, and a sewage valve is arranged on the sewage pipe.

[0053] like Figure 4 A T / P safety valve interface 6 is provided above one side of the outer shell 22 and the enamel inner tank 23. The T / P safety valve interface 6 is used to install a pressure relief valve to reduce the pressure in the enamel inner tank 23 to avoid explosion.

[0054] A touch screen 1 should also be installed on the upper end of one side of the housing 22 to facilitate manual control of the opening and closing of the relay 19 and the threshold of the temperature sensor detection result, so as to obtain the required water temperature. An open button 101 is provided on one side of the touch screen 1 to facilitate opening the entire machine.

[0055] The new condensing water heater provided in this embodiment can be used alone or in parallel to accurately supply hot water. It can automatically start and stop according to the change of demand load, save operating costs, and the hot water supply is accurate and sufficient. It is neither a household water heater nor a boiler, and does not require human supervision, saving invisible investment and costs. The precise parallel direct supply method does not require a water tank, the installation location is flexible, the occupied area is small, and the load-bearing requirements of the equipment installation base are easy to meet, saving space, saving foundation and reinforcement initial investment; less installation materials and water tank control system initial investment; less water tank control system failure hidden dangers and maintenance costs; no water tank, no need for long-term preheating and water storage, no hot water tank and circulating pipe heat dissipation, energy saving and gas saving, avoiding waste caused by water tank heat dissipation and insulation; no water tank, no full-load design, can be selected according to the actual use of hot water One or more units can be used, saving and no waste, the hot water pressure only comes from the tap water network, which is exactly the same as the cold water pressure, achieving hot and cold water pressure balance, and avoiding the problem of "hot and cold" at the water point. The temperature of the entire hot water system is adjustable, the operation is stable and reliable, the fully automatic operation is easy to operate, and the comprehensive investment cost. Therefore, it has the core advantage of low comprehensive energy consumption cost and meets the national requirements for energy conservation and environmental protection.

[0056] In addition, this new condensing water heater can be adapted to remote control systems, mobile phone APP control, and remote control.

[0057] The working principle and use process of the utility model are as follows: when in use, the whole machine is turned on by pressing the start button 101, and two groups of temperature sensors detect the water temperature. When the detected temperatures of the two sensors reach the minimum threshold, the relay 19 is turned on, and the controller 18 ignites the ignition needle 13 in the combustion chamber by igniting the high-voltage package 17. When the ignition needle 13 is ignited, the ion needle 15 forms an electric current with the help of the positive and negative ions in the flame, and the current acts on the electromagnetic valve 10 to keep it in an open state. At this time, the combustible gas can enter the combustion chamber through the combustible gas intake pipe 11, the variable frequency fan 20 and the exhaust pipe 25, and the air can enter the combustion chamber through the variable frequency fan 20 and the exhaust pipe 25, so that the air and the combustible gas can be fully premixed in the combustion chamber, and continuous combustion in the combustion chamber is realized, so that the water temperature in the enamel inner tank 23 is increased, and the hot water is discharged through the hot water outlet 2, and the smoke after combustion is gradually discharged through the exhaust pipe. When sewage needs to be discharged, the sewage valve can be opened for sewage discharge.

[0058] When the temperature in the enamel inner container 23 reaches the required temperature, the controller 18 controls the ignition needle 13 to stop igniting, the flame is extinguished, the current on the ion needle 15 disappears, the electromagnetic gas valve 10 cuts off the gas source, and the heating stops.

[0059] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the existence of other identical elements in the process, method, article or device including the element.

[0060] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel condensing water heater, comprising a housing (22), characterized in that: Also includes: An enamel liner (23), the enamel liner (23) being located inside the outer shell (22) and used for storing water, and a polyurethane fluorine-free integral foaming insulation layer (21) being provided between the enamel liner (23) and the outer shell (22); A concave tray (24), wherein the concave tray (24) is embedded in the upper end of the outer shell (22); A burner, the burner being located between the upper part of the enamel inner container (23) and the upper end of the outer shell (22); A variable frequency fan (20), the variable frequency fan (20) being installed in the concave tray (24), and the air inlet end of the variable frequency fan (20) being provided with a combustible gas inlet pipe (11), and the air inlet end of the variable frequency fan (20) being provided with a venturi tube (26), the venturi tube (26) being used to take in air, and the exhaust end of the variable frequency fan (20) being fixed with an exhaust pipe (25), the lower end of the exhaust pipe (25) entering the burner, and the combustible gas inlet pipe (11) being provided with an electromagnetic gas valve (10); An air intake filter element (28) is installed on one side of the concave tray (24) close to the venturi tube (26), and an air inlet (27) is provided on the upper cover (221) at a position opposite to the air intake filter element (28); an ignition needle (13), the ignition needle (13) being arranged at a lower portion of the concave tray (24), the ignition needle (13) being used to ignite the combustible gas in the burner; A flame viewing hole (14), the flame viewing hole (14) being opened in the middle of the concave tray (24), and the flame viewing hole (14) being used to observe the flame in the burner; An ion needle (15) is installed at the lower part of the concave tray (24), and the ion needle (15) is used to control the opening and closing of the electromagnetic valve (10).

2. A novel condensing water heater according to claim 1, characterized in that: Cold water inlets (5) are provided below both sides of the outer shell (22) and the enamel inner shell (23), and hot water outlets (2) are provided above both sides of the outer shell (22) and the enamel inner shell (23).

3. A novel condensing water heater according to claim 2, characterized in that: A positioning plate is installed on one side of the concave tray (24), and an ignition high-voltage package (17) and a controller (18) are integrated on the positioning plate; The controller (18) controls the ignition needle (13) to ignite via the ignition high-voltage package (17), so as to cause the combustible gas in the combustion chamber to burn; Cold water temperature sensors (4) are installed on both sides of the outer shell (22) and the enamel inner tank (23) near the cold water inlet (5), and the cold water temperature sensors (4) are used to detect the temperature of the cold water in the lower part of the enamel inner tank (23); Hot water temperature sensors (3) are installed on both sides of the outer shell (22) and the enamel inner tank (23) near the cold water inlet (5), and the hot water temperature sensors (3) are used to detect the temperature of the hot water in the upper part of the enamel inner tank (23).

4. A novel condensing water heater according to claim 3, characterized in that: The positioning plate is also integrated with a wind pressure switch (16); The wind pressure switch (16) controls the rotation speed of the variable frequency fan (20) through a controller (18) to adjust the air supply volume of the variable frequency fan (20).

5. A novel condensing water heater according to any one of claims 1 to 4, characterized in that: An upper cover (221) is embedded in the upper end of the concave tray (24), and a bottom cover (223) is embedded in the lower end of the outer shell (22).

6. A novel condensing water heater according to claim 5, characterized in that: A sewage pipe is provided in the outer shell (22), a sewage outlet (9) adapted to the sewage pipe is provided on the outer shell (22), and the upper end of the sewage pipe is inserted into the bottom of the enamel inner tank (23).

7. A novel condensing water heater according to claim 6, characterized in that: A smoke exhaust port (8) is provided on one side below the outer shell (22), and at least two smoke exhaust pipes are provided in the enamel inner tank (23), wherein the upper ends of the smoke exhaust pipes are connected to the burner, and the lower ends of the smoke exhaust pipes are fixedly connected to the smoke exhaust port (8).

8. A novel condensing water heater according to claim 7, characterized in that: A smoke exhaust temperature sensor (7) is installed on the upper side of the smoke exhaust port (8), and the smoke exhaust temperature sensor (7) is used to detect the temperature of smoke exhausted from the smoke exhaust port (8).

9. A novel condensing water heater according to any one of claims 5 to 7, characterized in that: A T / P safety valve interface (6) is provided above one side of the outer shell (22) and the enamel inner shell (23), and the T / P safety valve interface (6) is used to install a pressure relief valve.

10. A novel condensing water heater according to claim 9, characterized in that: A touch display screen (1) is mounted on an upper end of one side of the housing (22), and an opening button (101) is disposed on one side of the touch display screen (1).

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