CN219656320U - Condensing type wall-mounted boiler using methanol fuel - Google Patents

Abstract

The utility model discloses a condensing type hanging stove using methanol fuel, which comprises a hanging stove shell, a controller, a sanitary hot water plate heat exchanger, a phase change generator, a main heat exchanger, an expansion tank, a fuel pump, a fan, an ignition needle pressure gauge, a safety valve, a sensor and the like.

Description

Condensing type wall-mounted boiler using methanol fuel

Technical Field

The utility model relates to a methanol wall-mounted furnace, in particular to a condensing wall-mounted furnace using methanol fuel.

Background

In places where natural gas does not reach and power grid load is insufficient, a methanol wall-mounted furnace has a larger market opportunity, however, in the prior art, due to the fact that an atomization combustion technology is used, problems of insufficient combustion, low thermal efficiency, high combustion noise and the like exist, so that operation cost is higher, user experience is poor, development of the methanol wall-mounted furnace is limited, and the utility model provides a condensing wall-mounted furnace using methanol fuel, which has the characteristics of low noise, sufficient combustion, high thermal efficiency and the like, and meets user requirements.

Disclosure of Invention

The technical problems to be solved by the utility model are as follows:

the utility model provides a condensing type wall-mounted furnace using methanol fuel, which mainly solves the problems of high noise, low thermal efficiency and the like of the wall-mounted furnace in the prior art.

The utility model provides an use condensing hanging stove of methanol fuel, includes hanging stove casing, controller, health hot water plate heat exchanger, phase change generator, main heat exchanger, expansion tank, fuel pump, variable frequency fan, ignition needle, manometer, relief valve, sensor, air/gas mixing conveyer pipe, heating return water pipe, heating outlet water pipe, three-way valve with motor, combustor are constituteed, condensing hanging stove inner space adopts the baffle to separate into upper and lower two parts, the fuel pump is fixed in on the casing intermediate baffle and sealed the processing, fuel pump inlet pipeline connection hanging stove casing bottom fuel inlet, fuel pump outlet pipeline connection phase change generator import, phase change generator is fixed in hanging stove casing bottom, phase change generator outlet pipeline connection air/gas mixing conveyer pipe lower part, the junction is located the upper 5-20cm in air/gas mixing conveyer pipe bottom, prevents that phase change generator output gaseous state methanol temperature is too high, damages the variable frequency fan; the air/gas mixing conveying pipe is positioned at the upper part of the inner partition plate of the wall-mounted furnace, the bottom of the air/gas mixing conveying pipe is connected with the variable frequency fan, a passive gas mixing driver is arranged between the air/gas mixing conveying pipe and the variable frequency fan, an outlet at the upper part of the air/gas mixing conveying pipe is connected with a burner, an ignition needle and a flame detection electrode are arranged near the burner, a power line of the ignition needle is connected with a high-voltage igniter, and the high-voltage igniter and the flame detection electrode are electrically connected with a controller; the main heat exchanger is fixed at the upper part of the wall-mounted furnace shell, is connected with a smoke outlet of the wall-mounted furnace shell, and is externally connected with a chimney, so that combustion smoke is discharged; the smoke outlet is provided with a temperature sensor and an electric appliance is connected with a controller for monitoring the smoke exhaust temperature; the burner is positioned in a space formed in the main heat exchanger and is used for sealing the connecting part, and the burner burns and heats the cooling medium in the main heat exchanger; one end of the heating return water pipeline is connected with a shell bottom heating return water inlet, the other end of the heating return water pipeline is connected with a main heat exchanger cold medium inlet, a heated cold medium is connected with a heating outlet water pipeline through a main heat exchanger outlet, the heating outlet water pipeline is connected with a wall-mounted boiler shell bottom heating hot water outlet, the heating outlet water pipeline and the heating return water pipeline are arranged at front ends of interfaces of the wall-mounted boiler shell bottom heating return water inlet and the heating hot water outlet, a bypass pipeline is arranged, and a drain valve, a water pressure sensor and a check valve are sequentially arranged on the bypass pipeline along the medium flowing direction so as to prevent water system faults and lead to wall-mounted boiler faults; the heating water outlet pipeline is provided with a three-way valve with a motor above the bypass pipeline interface, one end of the three-way valve with the motor is connected with a high-temperature medium inlet of the sanitary hot water plate heat exchanger through a pipeline, and an electric appliance is connected with a controller, and after the high-temperature medium exchanges heat through the sanitary hot water plate heat exchanger, the high-temperature medium is converged into the heating water return pipeline through a high-temperature medium outlet of the plate heat exchanger; the low-temperature medium inlet pipeline of the sanitary hot water plate heat exchanger is connected with the sanitary cold water inlet at the bottom of the shell, and the low-temperature medium outlet is connected with the sanitary hot water outlet at the bottom of the wall-mounted boiler shell; the heating return water pipeline is sequentially provided with a bypass interface, an inlet which is communicated with the sanitary hot water plate heat exchanger, a pressure gauge, a safety valve, a circulating pump, an expansion water tank and a heating return water NTC sensor along the water flow direction, and an electric appliance is connected with the controller; the heating water outlet pipeline is sequentially provided with a heating water outlet NTC sensor, a three-way valve with a motor and a bypass interface along the water flow direction, and the heating water outlet NTC sensor is electrically connected with a controller through the three-way valve with the motor.

Further, hanging stove casing is cuboid structure, and the bottom is equipped with comdenstion water export, heating hot water export, sanitary hot water export, fuel inlet, sanitary cold water import, heating return water import, drain valve and adopts sealed processing between trompil position and the hanging stove casing, connected mode bolt or silk or welding, hanging stove casing openly is equipped with hanging stove controller operating panel, controller operating panel with hanging stove casing inside controller electrical apparatus is connected, hanging stove casing upper portion is equipped with the exhaust port, hanging stove casing back upper portion is equipped with hanging stove couple for be fixed in the wall on, the inside sound insulation cotton that is equipped with all around of hanging stove casing of cuboid wall, the casing openly can be disassembled, adopts lock joint or silk to connect with the casing.

Further, the inside of the shell is separated by a baffle plate, the baffle plate is made of metal, the inner part of the shell is divided into an upper part and a lower part, the bottom of the shell is provided with a connecting pipeline, a sanitary hot water plate heat exchanger and a controller, the upper part of the shell is provided with a phase change generator, an expansion water tank, a variable frequency fan, an air/gas mixed conveying pipe, a burner and a main heat exchanger, the fuel pump is fixed on the baffle plate in the shell of the wall-mounted furnace, a power supply of the fuel pump is connected with the frequency converter, the frequency converter is electrically connected with the controller, an inlet pipeline of the fuel pump is connected with a fuel inlet of the shell of the bottom wall-mounted furnace, the periphery of the fuel pump is provided with a metal package to form a square sound-proof cover, the square sound-proof cover is fixed on the baffle plate and is sealed, resonance phenomenon is prevented, sound-proof cotton is arranged in the square sound-proof cover and is attached to the square sound-proof cover, so that noise is eliminated when part of the fuel pump works, an outlet pipeline of the fuel pump is connected with the phase change generator, the other end of the phase change generator is connected with the air/gas mixed conveying pipe, and the interface is positioned at the bottom 5-20cm of the air/gas mixed conveying pipe, so that the temperature of the output by the generator is prevented from being too high, and damaging the variable frequency fan at the lower part. The bottom of the air/gas mixing conveying pipe is connected with a variable frequency fan, a passive gas mixing driver is arranged between the air/gas mixing conveying pipe and the variable frequency fan, and the variable frequency fan is electrically connected with a controller.

The passive gas mixing driver is a stainless steel sheet, the thickness is between 2 and 5mm, baffle holes with different directions are formed in the sheet, the baffle holes are used for effectively premixing gasified high-temperature methanol gas and combustion air, the combustion air enters an air/gas mixing conveying pipe at different angles in operation, the air/gas mixing conveying pipe is similar to tornado and is used for fully mixing the combustion air and fuel, the other end of the air/gas mixing conveying pipe is connected with a burner, the burner is a circular tube type burner, the circular tube type surface burner is made of a heat-resistant metal sheet, the radial length of the circular tube type surface burner is between 5 and 30cm, the diameter of the circular tube type surface burner is between 5 and 20cm, the radial length and the diameter of the circular tube type surface burner can be adjusted according to the rated power of a heating furnace, tiny fire holes are distributed on the circumferential surface, the far-end openings of the fire holes are larger, so that materials sprayed out of the single fire holes are kept approximately uniform, the premixed air and the gaseous methanol fuel are sprayed out from the fire holes, the premixed air and the gaseous methanol fuel are distributed at 360 degrees in the radial direction, the flame distribution area is large, the flame is uniform, the running noise is low, the burner is provided with an ignition needle and the gas detector and the flame detector is used for detecting and flame electrodes and controlling flame signals.

Further, the main heat exchanger is rolled into a circle in close contact by a stainless steel pipe through a rounding machine, the circle is tightly surrounded up and down according to different diameters to form a main heat exchanger main body part, a space formed inside the circle is a combustion chamber, a burner is arranged inside the combustion chamber, the outside of the circle in close contact is wrapped into a circle by a metal shell, a part close to a smoke port is not wrapped, the shape of the non-wrapped part corresponds to that of the smoke port, the smoke port is tightly connected, the connection part is sealed, and the smoke is discharged; the low point of the bottom of the outer metal wrapping shell of the main heat exchanger is provided with a condensate water outlet, water vapor generated by burning smoke is condensed, after heat exchange, liquid water flows to the low point of the bottom of the main heat exchanger along a metal circular wall, a low-point pipeline is connected with the condensate water outlet of the bottom of the wall-mounted boiler shell, and a water seal device is arranged at the condensate water position of the bottom of the main heat exchanger to prevent the burning smoke from being discharged.

Further, the smoke outlet is connected with an external chimney, the chimney is in a double-layer cylinder shape, a space between the double layers is used as an external air inlet, an inner-layer cylinder-shaped pipeline is used as a smoke outlet, and heat exchange is performed between smoke and external air, so that the heat efficiency is improved; the flue gas outlet and the main heat exchanger smoke outlet are sealed, an external inlet formed by the space between the two layers is connected with the wall-mounted boiler shell, external air enters from the wall-mounted boiler shell, and enters into the air/gas mixing conveying pipe through the variable-frequency fan.

Further, main heat exchanger import pipeline connection hanging stove casing bottom heating return water interface, heating return water pipeline is equipped with manometer, relief valve, expansion tank, circulating water pump, heating NTC sensor in proper order from hanging stove casing bottom heating return water interface to main heat exchanger import between, manometer, relief valve, circulating water pump, heating NTC sensor electrical apparatus connection director.

Further, main heat exchanger export pipeline connection hanging stove casing bottom heating hot water export, heating outlet pipe is equipped with bypass interface, the three-way valve that has the motor, heating NTC sensor, overheat protection device in proper order from hanging stove casing bottom heating hot water export to main heat exchanger export between, three-way valve, heating NTC sensor, overheat protection device electrical apparatus connection director that have the motor.

Further, the water vapor generated by the combustion of the methanol by the burner flows to the condensate water outlet at the bottom of the main heat exchanger through the metal circular wall by self-flow of the condensate water generated by the heat exchange of the main heat exchanger, and the condensate water outlet pipeline of the main heat exchanger is connected with the condensate water outlet at the bottom of the shell of the hanging stove.

Further, the sanitary hot water plate heat exchanger is positioned at the lower part of the inner partition plate of the wall-mounted boiler shell, the sanitary hot water plate heat exchanger is a conventional plate heat exchanger, wherein a sanitary cold water inlet and a sanitary hot water outlet are respectively connected with the sanitary cold water inlet and the sanitary hot water outlet at the bottom of the wall-mounted boiler shell through pipelines, and the sanitary cold water inlet is connected with an external water source; the sanitary hot water plate heat exchanger is characterized in that the other two ends of the sanitary hot water plate heat exchanger are respectively connected with a heating water outlet pipeline and a heating water return pipeline in the wall-mounted boiler through pipelines, a three-way valve with a motor is arranged at the connecting position of the sanitary hot water plate heat exchanger and the heating water outlet pipeline in the wall-mounted boiler and is used for automatically regulating hot water entering the plate heat exchanger, the connecting position is positioned at the front of the heating water outlet pipeline in the water flow direction, and after the heating hot water enters the sanitary hot water plate heat exchanger and exchanges heat, the heating hot water is converged into the heating water return pipeline.

Further, a use condensing hanging stove of methanol fuel, heating outlet pipe and heating return pipe are in hanging stove casing bottom interface front end is equipped with the bypass pipeline, the bypass is equipped with drain valve, water pressure sensor, check valve in proper order, the drain valve can also be as hanging stove and water heating system moisturizing mouth, and methanol fuel pipeline material is copper pipe or stainless steel pipe.

Drawings

Fig. 1 is a schematic structural diagram of a condensing wall-mounted boiler using methanol fuel in an embodiment.

Fig. 2 is a schematic diagram of a portion a in fig. 1 in this embodiment.

Fig. 3 is a schematic diagram of a portion B of fig. 1 in the present embodiment.

Fig. 4 is a front view of a condensing wall-mounted boiler using methanol fuel.

1. The air conditioner comprises a smoke outlet 2, a room temperature sensor 3, a heating NTC sensor 4, an overheat protection 5, a phase change generator 6, a sanitary hot water plate heat exchanger 7, a three-way valve 8 with a motor, a water discharge valve 9, a sanitary hot water NTC sensor 10, a water pressure sensor 11, a check valve 12, a main heat exchanger 13, an ignition needle 14, a burner 15, a flame detection electrode 16, an air/gas mixing and conveying pipe 17, a heating NTC sensor 18, a fan 19, an expansion tank 20, a fuel pump 21, a circulating water pump 22, a safety valve 23, a pressure gauge 24, a water flow sensor 25, a boiler water injection valve 26, a controller 27, a condensed water outlet 28, a heating hot water outlet 29, a sanitary hot water outlet 30, a fuel inlet 31, a sanitary cold water inlet 32, a heating backwater inlet 33, a heating backwater pipe 34, a wall-hanging boiler housing 35, an operation panel 36 and a wall-hanging boiler hook

A1, a flue gas outlet A2, a flue inner wall A3, a flue pipe seat A4, a wall hanging stove shell A5 flame-retardant heat-insulation cotton B1, a burner shell B2, an ignition device B3, a combustion chamber B4, a heating stove heat exchange device B5, a surface burner fire hole B6, a circular tube type surface burner B7, a flame detection device B8, a passive gas mixing driver B9, a combustion-supporting centrifugal fan B10, a phase-change generator B11 methanol liquid inlet pipe B11 methanol gas outlet pipe B13, a methanol gas deceleration nozzle B14 and a premixing chamber.

Detailed Description

The utility model will now be described in further detail with reference to the drawings and examples, which are simplified schematic illustrations showing only the basic structure of the utility model and therefore showing only the structures that are relevant to the utility model.

In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "left", "upper", "lower", "left", "inner", "outer", "upper", "lower", etc. are based on the directions and positional relationships shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements to be referred to must have a specific direction to be constructed and operated in a specific direction, and thus are not to be construed as limitations of the present utility model.

In the description of the present utility model, it should be noted that the term "connected" should be interpreted broadly, unless explicitly stated and defined otherwise, for example, the connection may be a detachable connection, or an integral connection; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communicated with the inside of 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 utility model provides a use condensation type hanging stove of methanol fuel, by hanging stove casing 34, controller 26, health hot water plate heat exchanger 6, phase change generator 5, main heat exchanger 12, expansion tank 19, fuel pump 20, variable frequency fan 18, ignition needle 13, manometer 23, relief valve 22, sensor, controller 26 etc. constitute, condensation type hanging stove inner space adopts the baffle to separate, divide into upper and lower two parts, fuel pump 20 is fixed on the casing intermediate baffle and sealed, fuel pump 20 inlet pipeline is connected wall hanging stove casing 34 bottom fuel inlet 30, fuel pump 20 outlet pipeline is connected phase change generator 5 import, phase change generator 5 is fixed in wall hanging stove casing 34 bottom, phase change generator 6 outlet pipeline is connected the lower part in the air/gas mixing conveyer pipe 16, the junction is located air/gas mixing conveyer pipe 16 bottom is 5-20cm upwards, prevents that phase change generator 5 from exporting gaseous state methanol temperature is too high, damages variable frequency fan 18; the air/gas mixing and conveying pipe 16 is positioned at the upper part of an inner partition plate of the wall-mounted furnace, the bottom of the air/gas mixing and conveying pipe 16 is connected with a variable frequency fan 18, a passive gas mixing driver B8 is arranged between the air/gas mixing and conveying pipe 16 and the variable frequency fan 18, an outlet at the upper part of the air/gas mixing and conveying pipe 16 is connected with a combustor 14, an ignition needle 13 and a flame detection electrode 15 are arranged near the combustor 14, a power line of the ignition needle 13 is connected with a high-voltage igniter, and the high-voltage igniter and the flame detection electrode 15 are electrically connected with a controller 26; the main heat exchanger 12 is fixed on the upper part of the wall-mounted furnace shell 34, is connected with the smoke outlet 1 of the wall-mounted furnace shell 34, and the smoke outlet 1 is externally connected with a chimney, so that combustion smoke is discharged; a temperature sensor is arranged at the smoke outlet 1, and an electric appliance is connected with a controller for monitoring the smoke outlet temperature; the burner 14 is positioned in the space formed in the main heat exchanger 12 and the connection part is sealed, and the burner 14 burns and heats the cooling medium in the main heat exchanger 12; one end of the heating return water pipeline is connected with a shell bottom heating return water inlet, the other end of the heating return water pipeline is connected with a main heat exchanger 12 cold medium inlet, a heated cold medium is connected with a heating outlet water pipeline through a main heat exchanger 12 outlet, the heating outlet water pipeline is connected with a wall-mounted boiler shell bottom heating hot water outlet 28, the heating outlet water pipeline and the heating return water pipeline are arranged at the front end of a wall-mounted boiler shell 34 bottom interface, a bypass pipeline is arranged, and the bypass pipeline is sequentially provided with a drain valve 8, a water pressure sensor 10 and a check valve 11 along the medium flowing direction, so that the wall-mounted boiler is prevented from being broken down due to the water system failure; the heating water outlet pipeline is provided with a three-way valve 7 with a motor above the bypass pipeline interface, one end of the three-way valve 7 with the motor is connected with a high-temperature medium inlet of the sanitary hot water plate heat exchanger 6 through a pipeline, and an electric appliance is connected with a controller 26, and after the high-temperature medium exchanges heat through the sanitary hot water plate heat exchanger 6, the high-temperature medium is converged into the heating water return pipeline through a high-temperature medium outlet of the plate heat exchanger; the low-temperature medium inlet pipeline of the sanitary hot water plate heat exchanger 6 is connected with the sanitary cold water inlet 31 at the bottom of the shell, and the low-temperature medium outlet is connected with the sanitary hot water outlet 29 at the bottom of the wall-mounted boiler shell; the heating return water pipeline is sequentially provided with a bypass interface, a pressure gauge 23, a safety valve 22, a circulating pump 21, an expansion water tank 19 and a heating NTC sensor 17 along the water flow direction, and an electric appliance is connected with a controller 26; the heating outlet water pipeline is sequentially provided with a heating NTC sensor 3, an overheat protection 4, a three-way valve 7 with a motor and a bypass interface along the water flow direction, and the heating outlet water NTC sensor 3, the overheat protection 4 and the three-way valve electrical appliance 7 with the motor are connected with a controller 26.

Further, the wall-mounted boiler shell 34 is of a cuboid-like structure, a condensate water outlet 27, a heating hot water outlet 28, a sanitary hot water outlet 29, a fuel inlet 30, a sanitary cold water inlet 31, a heating return water inlet 32 and a perforated part are sealed with the wall-mounted boiler shell 34, the wall-mounted boiler shell 34 is bolted or screwed or welded in a connecting mode, a wall-mounted boiler controller operation panel 35 is arranged on the front surface of the wall-mounted boiler shell 34, the controller operation panel 35 is electrically connected with an internal controller 26 of the wall-mounted boiler shell 34, a smoke outlet 1 is arranged on the upper portion of the wall-mounted boiler shell 34, wall-mounted boiler hooks 36 are arranged on the upper portion of the back surface of the wall-mounted boiler shell 34 and used for fixing the wall-mounted boiler on a wall surface, soundproof cotton is arranged around the inner portion of the wall-mounted boiler shell 34, and the front surface of the wall-mounted boiler shell can be disassembled, and the wall-mounted boiler shell is fastened or screwed.

Further, the inner part of the shell is divided into an upper part and a lower part, the bottom is provided with a connecting pipeline, a sanitary hot water plate heat exchanger 6 and a controller 26, the upper part is provided with a phase change generator 5, an expansion tank 19, a variable frequency fan 18, an air/gas mixing and conveying pipe 16, a combustor 14, a main heat exchanger 12 and the like, the fuel pump 20 is fixed on a partition plate inside the wall-mounted furnace shell 34, a power supply of the fuel pump 20 is connected with a frequency converter, the frequency converter is electrically connected with the controller 26, an inlet pipeline of the fuel pump 20 is connected with a fuel inlet 30 of the bottom wall-mounted furnace shell 34, the periphery of the fuel pump 20 is provided with a metal package to form a square sound-proof housing, the square sound-proof housing is fixed on the partition plate and is sealed, resonance phenomenon is prevented, sound-proof cotton is arranged inside the square sound-proof housing and is attached to the square sound-proof housing, noise is eliminated when part of the fuel pump 20 works, an outlet pipeline of the fuel pump 20 is connected with the phase change generator 5, the other end of the phase change generator 5 is connected with the air/gas mixing and conveying pipe 16, and the interface is positioned at the position 5-20cm below the air/gas mixing and conveying pipe 16, so that the methanol output temperature of the generator 5 is prevented from damaging the lower part due to overhigh temperature; the bottom of the air/gas mixing conveying pipe 16 is connected with a variable frequency fan 18, a passive gas mixing driver B8 is arranged between the air/gas mixing conveying pipe 16 and the variable frequency fan 18, and the variable frequency fan is electrically connected with a controller 26.

The passive gas mixing driver B8 is a stainless steel sheet, the thickness is between 2 and 5mm, the sheet is provided with 10 to 50 baffle holes with different directions, the baffle holes are used for effectively premixing gasified high-temperature methanol gas and combustion air, the combustion air enters the air/gas mixing conveying pipe 16 at different angles during operation, the baffle holes are similar to tornados, the combustion air and fuel are fully mixed, the other end of the air/gas mixing conveying pipe 16 is connected with the burner 14, the burner 14 is a circular tube type burner, the circular tube type surface burner is made of a heat-resistant metal sheet, the radial length and the diameter of the circular tube type surface burner 14 are 5 to 30cm, the diameter is 5 to 20cm, the radial length and the diameter can be adjusted according to the rated power of a heating furnace, the circumference surface is fully provided with tiny fire holes B5, the far end of each fire hole B5 is provided with a large hole so as to keep the material sprayed out of a single fire hole approximately uniform, the premixed air and the gaseous methanol fuel are sprayed out from the fire needle B2, the combustion flame is distributed in a radial 360 DEG, the distribution area is large, the noise is uniform, the burner is low, the burner 14 is provided with a flame detector and a flame detector 13 is connected with a flame detector, and a flame detector 13 is connected with a flame detector.

Further, the main heat exchanger 12 is rolled into a circle tightly contacted by a stainless steel pipe through a rounding machine, the circle tightly surrounds up and down according to different diameters to form a main heat exchanger main body part, a space formed inside the circle is a combustion chamber, the combustion chamber is internally provided with a combustor 14, the outside of the tightly contacted circle is wrapped into a circle by adopting a metal shell, a part close to a smoke port is not wrapped, the shape of the wrapping part is consistent with that of the smoke port 1, the smoke port is tightly connected, the connection part is sealed, and the smoke is discharged; the low point of the bottom of the outer metal wrapping shell of the main heat exchanger 12 is provided with a condensed water outlet, water vapor generated by burning smoke is subjected to heat exchange, and then the condensed lower part of liquid water flows to the low point of the bottom of the main heat exchanger 12 along the metal circular wall, the low point pipeline is connected with the condensed water outlet 27 at the bottom of the wall-mounted boiler shell 34, and the place at the bottom of the main heat exchanger is provided with a water seal device for preventing the burning smoke from being discharged.

Further, the smoke outlet 1 is connected with an external chimney, the chimney is in a double-layer cylinder shape, a space between the double layers is used as an external air inlet, an inner-layer cylinder-shaped pipeline is used as a smoke outlet, and heat exchange is performed between smoke and external air, so that the heat efficiency is improved; the flue gas outlet and the flue gas outlet of the main heat exchanger 12 are sealed, an external inlet formed by the space between the two layers is connected with the wall-mounted boiler shell, external air enters the wall-mounted boiler shell from the wall-mounted boiler shell, and enters the air/gas mixing conveying pipe through the fan.

Further, the inlet pipeline of the main heat exchanger 12 is connected with the wall-mounted boiler shell bottom heating backwater interface 32, a pressure gauge 23, a safety valve 22, an expansion water tank 19, a circulating water pump 21 and a heating NTC sensor 17 are sequentially arranged between the wall-mounted boiler shell bottom heating backwater interface 32 and the inlet of the main heat exchanger 12, and the pressure gauge 23, the safety valve 22, the circulating water pump 21 and the heating NTC sensor 17 are electrically connected with a controller.

Further, the outlet pipeline of the main heat exchanger 12 is connected with the bottom heating hot water outlet 28 of the wall-mounted boiler shell 34, a bypass interface, a three-way valve 7 with a motor, a heating NTC sensor 3 and an overheat protection device 4 are sequentially arranged between the bottom heating hot water outlet 28 of the wall-mounted boiler shell and the outlet of the main heat exchanger 12, and the three-way valve 7 with the motor, the heating NTC sensor 3 and the overheat protection device 4 are electrically connected with a controller.

Further, the water vapor generated by the combustion of the methanol by the burner 14, the condensed water generated by the heat exchange of the main heat exchanger 12 flows to the condensed water outlet 27 at the bottom of the main heat exchanger 12 through the metal circular wall, and the condensed water outlet pipeline of the main heat exchanger 12 is connected with the condensed water outlet 27 at the bottom of the wall-mounted boiler shell 34.

Further, the sanitary hot water plate heat exchanger 6 is located at the lower part of the inner partition plate of the wall-mounted boiler shell 34, the sanitary hot water plate heat exchanger 6 is a conventional plate heat exchanger, wherein a sanitary cold water inlet and a sanitary hot water outlet are respectively connected with a sanitary cold water inlet 31 and a sanitary hot water outlet 29 at the bottom of the wall-mounted boiler shell 34 through pipelines, and the sanitary cold water inlet 31 is connected with an external water source; the sanitary hot water plate heat exchanger 6 is connected with the wall-mounted furnace internal heating water outlet pipeline and the heating water return pipeline through pipelines respectively at the other two ends, a three-way valve with a motor is arranged at the connecting position of the sanitary hot water plate heat exchanger 6 and the wall-mounted furnace internal heating water outlet pipeline and is used for automatically regulating hot water entering the plate heat exchanger, the connecting position is positioned in front of the heating water outlet pipeline heating NTC sensor 3 along the water flow direction, and after the heating hot water enters the sanitary hot water plate heat exchanger and exchanges heat, the heating hot water is collected into the heating water return pipeline.

Further, the condensing type wall-mounted boiler using methanol fuel, the heating water outlet pipeline and the heating water return pipeline are arranged at the front end of the bottom connector of the wall-mounted boiler shell 34, a bypass pipeline is arranged, the bypass is sequentially provided with a drain valve 8, a water pressure sensor 10 and a check valve 11, and the drain valve 10 can also be used as a water supplementing port of the wall-mounted boiler and a water heating system.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (12)

1. Use condensing hanging stove of methanol fuel, its characterized in that: the wall-mounted boiler comprises a wall-mounted boiler shell, a controller, a sanitary hot water plate heat exchanger, a phase change generator, a main heat exchanger, an expansion tank, a fuel pump, a variable frequency fan, an ignition needle, a pressure gauge, a safety valve, a sensor, an air/gas mixing and conveying pipe, a heating water return pipe, a heating water outlet pipe, a three-way valve with a motor and a burner, wherein the inner space of the condensing wall-mounted boiler is divided into an upper part and a lower part by a partition plate, the fuel pump is fixed on the middle partition plate of the shell and is subjected to sealing treatment, an inlet pipeline of the fuel pump is connected with a fuel inlet at the bottom of the wall-mounted boiler shell, an outlet pipeline of the fuel pump is connected with an inlet of the phase change generator, the phase change generator is fixed at the bottom of the wall-mounted boiler shell, and the outlet pipeline of the phase change generator is connected with the middle and lower part of the air/gas mixing and conveying pipe, and the connecting part is positioned at the position 5 cm to 20cm above the bottom of the air/gas mixing and conveying pipe; the air/gas mixing conveying pipe is positioned at the upper part of the inner partition plate of the wall-mounted furnace, the bottom of the air/gas mixing conveying pipe is connected with the variable frequency fan, a passive gas mixing driver is arranged between the air/gas mixing conveying pipe and the variable frequency fan, an outlet at the upper part of the air/gas mixing conveying pipe is connected with the burner, an ignition needle and a flame detection electrode are arranged near the burner, a power line of the ignition needle is connected with the high-voltage igniter, and the high-voltage igniter and the flame detection electrode are electrically connected with the controller; the main heat exchanger is fixed at the upper part of the wall-mounted furnace shell, is connected with a smoke outlet of the wall-mounted furnace shell, and is externally connected with a chimney, so that combustion smoke is discharged; the smoke outlet is provided with a temperature sensor and is electrically connected with a controller; the burner is positioned in a space formed in the main heat exchanger and is used for sealing the connecting part, and the burner burns and heats the cooling medium in the main heat exchanger; one end of the heating return water pipeline is connected with a shell bottom heating return water inlet, the other end of the heating return water pipeline is connected with a main heat exchanger cold medium inlet, a heated cold medium is connected with a heating outlet pipeline through a main heat exchanger outlet, the heating outlet pipeline is connected with a wall hanging stove shell bottom heating hot water outlet, the heating outlet pipeline and the heating return water pipeline are arranged at the front end of a wall hanging stove shell bottom interface, a bypass pipeline is arranged, and the bypass pipeline is sequentially provided with a drain valve, a water pressure sensor and a check valve along the medium flowing direction; the heating water outlet pipeline is provided with a three-way valve with a motor above the bypass pipeline interface, one end of the three-way valve with the motor is connected with a high-temperature medium inlet of the sanitary hot water plate heat exchanger through a pipeline and is electrically connected with the controller, and the high-temperature medium is converged into the heating water return pipeline through a high-temperature medium outlet of the plate heat exchanger after heat exchange of the sanitary hot water plate heat exchanger; the low-temperature medium inlet pipeline of the sanitary hot water plate heat exchanger is connected with the sanitary cold water inlet at the bottom of the shell, and the low-temperature medium outlet is connected with the sanitary hot water outlet at the bottom of the wall-mounted boiler shell; the heating return water pipeline is sequentially provided with a bypass interface, a pressure gauge, a safety valve, a circulating pump, an expansion water tank and a heating return water NTC sensor along the water flow direction and is electrically connected with the controller; the heating outlet pipeline is sequentially provided with a heating outlet NTC sensor, a three-way valve with a motor and a bypass interface along the water flow direction, and the heating outlet NTC sensor is electrically connected with a controller through the three-way valve with the motor.

2. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the wall-mounted boiler shell is of a cuboid structure and is divided into an upper part and a lower part, the middle part of the wall-mounted boiler shell is separated by a partition plate, a condensed water outlet, a heating hot water outlet, a sanitary hot water outlet, a fuel inlet, a sanitary cold water inlet, a heating return water inlet and a drain valve are arranged at the bottom of the wall-mounted boiler shell, sealing treatment is adopted between the opening part and the shell, and the connection mode is bolting or wire-bonding or welding.

3. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the wall-mounted boiler is characterized in that a wall-mounted boiler controller operation panel is arranged on the front side of the shell and is electrically connected with the internal controller, a smoke outlet is formed in the upper portion of the wall-mounted boiler shell, and a wall-mounted boiler hook is arranged on the upper portion of the back side of the wall-mounted boiler shell and used for fixing the wall-mounted boiler on a wall surface.

4. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: soundproof cotton is arranged around the inside of the wall-mounted furnace shell, and the front surface of the wall-mounted furnace shell can be disassembled and buckled or screwed with the main body of the wall-mounted furnace shell.

5. The condensing wall-mounted boiler using methanol fuel as claimed in claim 2, wherein: the material of the partition plate is a metal material.

6. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the fuel pump is equipped with the sound-proof housing that the metal parcel becomes the square around, the square is fixed in casing bottom and sealing treatment, the inside soundproof cotton that is equipped with of square sound-proof housing just laminates with the square sound-proof housing.

7. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the bottom of the air/gas mixing conveying pipe is connected with a variable frequency fan, a passive gas mixing driver is arranged between the air/gas mixing conveying pipe and the fan, the passive gas mixing driver is a stainless steel sheet, the thickness is between 2 mm and 5mm, and the sheet is provided with baffle holes with 10-50 different directions.

8. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the burner is a circular tube type burner, the circular tube type surface burner is made of a heat-resistant metal sheet, the radial length of the circular tube type surface burner is 5-30cm, the diameter of the circular tube type surface burner is 5-20cm, the radial length and the diameter of the circular tube type surface burner can be adjusted according to the rated power of a heating furnace, fine fire holes are distributed on the circumferential surface, the holes are formed at the far ends of the fire holes, and combustion flames are distributed at 360 degrees in the radial direction.

9. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: and a water sealing device is arranged at a condensing outlet at the bottom place of the main heat exchanger.

10. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the smoke outlet is connected with an external chimney, the chimney is in a double-layer cylinder shape, a space between the double layers is used as an external air inlet, and an inner-layer cylinder-shaped pipeline is used as a smoke outlet; and the flue gas outlet of the main heat exchanger are sealed, and an external inlet formed by the space between the two layers is connected with the wall-mounted boiler shell.

11. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the heating water return pipeline, the heating water outlet pipeline and the methanol fuel pipeline are made of copper pipes or stainless steel pipes.

12. The condensing wall-mounted boiler using methanol fuel as set forth in claim 1, wherein: the fuel pump power is connected with the frequency converter, and the frequency converter is electrically connected with the controller.