Plasma flame wall-hung stove and water heater device

Abstract

The application provides a kind of plasma flame type wall-hanging stove, belongs to heating equipment technical field, the wall-hanging stove includes water outlet pipe, flue, combustion stove main body and pump water component, combustion stove main body includes stove shell, heat exchange pipe, heat conduction fin, wiping assembly and plasma torch generator;Plasma torch generator is located at the bottom of stove shell, for generating high-temperature plasma flame;Heat exchange pipe is S-shaped coiled in the position close to the top of stove shell, and its two ends are connected with water outlet pipe and pump water component respectively, and heat conduction fin is arranged at the interval in the gap of heat exchange pipe;Wiping assembly is arranged at the lower side of heat conduction fin, and is in contact with the lower surface of heat exchange pipe.The application effectively removes attached soot by wiping assembly sliding wiping the lower surface of heat exchange pipe when the wall-hanging stove is stopped, avoids dust layer to reduce heat exchange efficiency, and at the same time, S-shaped heat exchange pipe and heat conduction fin synergistically act to significantly increase heat exchange area, improve heat energy utilization rate.

Description

Technical Field

[0001] This invention relates to the field of heating equipment technology, and in particular to a plasma flame wall-hung boiler and water heater device. Background Technology

[0002] Plasma flame wall-hung boilers are a new type of heating equipment that uses a plasma torch to generate a high-temperature flame and heats circulating water through heat exchange. Compared with traditional gas wall-hung boilers, plasma flame wall-hung boilers have advantages such as high flame temperature, rapid start-up, wide fuel adaptability (e.g., direct ionization of air or some process gases), and clean combustion products, and are gradually gaining attention in the fields of residential and industrial heating.

[0003] An existing plasma flame wall-hung boiler typically includes a combustion chamber, heat exchange tubes, a flue, and a water pump assembly. The combustion chamber houses a plasma torch generator to ionize gas and produce a high-temperature plasma jet. The heat exchange tubes are located at the top of the boiler and are arranged in a serpentine or coiled pattern. The water pump assembly introduces cold water into the heat exchange tubes, where it absorbs heat from the flame and high-temperature flue gas before being output as hot water through an outlet pipe. To enhance heat transfer, some designs also add heat-conducting fins between the heat exchange tubes.

[0004] However, this type of wall-hung boiler has the following technical defects in actual operation: First, the flue gas produced during combustion usually contains a certain amount of soot particles. When these particles rise with the flue gas and flow over the surface of the heat exchange tubes, they easily adhere to and gradually accumulate on the lower surface of the heat exchange tubes and in the gaps between the fins, forming a thermal resistance layer, which significantly reduces heat exchange efficiency and leads to increased energy consumption. Second, existing equipment lacks an effective online or offline cleaning structure for dust accumulation on the surface of the heat exchange tubes. It usually requires disassembling the boiler body for manual cleaning, which results in short maintenance cycles, cumbersome operation, and long-term dust accumulation will also accelerate the corrosion of the heat exchange tubes and shorten the service life of the equipment. Summary of the Invention

[0005] The purpose of this invention is to provide a plasma flame wall-hung boiler and water heater device to solve the technical problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A plasma flame wall-mounted boiler and water heater device includes a water outlet pipe, a flue, a combustion furnace body, and a water pump assembly. The combustion furnace body includes a furnace shell, heat exchange tubes, heat-conducting fins, a wiping assembly, and a plasma torch generator. The plasma torch generator is located at the bottom of the furnace shell and is used to generate a high-temperature plasma flame inside the furnace shell. The heat exchange tubes are located near the top of the furnace shell, with both ends connected to the water outlet pipe and the water pump assembly, respectively. The water pump assembly is connected to an external water supply system and introduces cold water into the heat exchange tubes. The water outlet pipe is connected to an external water outlet system and is used to discharge heated hot water. The heat exchange tubes are S-shaped coiled, and the heat-conducting fins are evenly spaced within the gaps of the heat exchange tubes. The wiping assembly is located below the heat-conducting fins, contacts the lower surface of the heat exchange tubes, and can slide along the depth direction of the outer shell to wipe away soot particles from the surface of the heat exchange tubes. The flue is located at the top of the furnace shell and is used to discharge the hot gas generated by the flame.

[0008] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0009] In one alternative: the heat-conducting fins are arranged side by side, with one end connected together by a fixing plate. The fixing plate is fixed to the inner wall of the furnace shell by bolts. Each heat-conducting fin has a flow-guiding protrusion on both sides to guide the flue gas to flow to the surface of the heat exchange tube.

[0010] In one alternative embodiment: the wiping assembly includes a scraping frame, a wiping cylinder, and two scraping rods. The scraping frame is vertically slidable on the inner wall of the furnace shell, with both ends extending to the outermost heat-conducting fins. The two heat exchange tubes are parallel to each other and arranged along the width of the furnace shell. The scraping rods are provided with multiple arc-shaped wiping blades that contact the straight sections of the heat exchange tubes. The ends of the scraping frame are movably connected to the ends of the scraping rods via wiping connecting rods. The wiping cylinder is located at the top of the furnace shell, and its telescopic end is fixedly connected to the scraping frame.

[0011] In one alternative embodiment: the plasma torch generator includes a microwave generator and discharge tubes. The microwave generator is located on the bottom wall inside the furnace shell and is connected to the gas supply main body located at the bottom of the furnace shell. There are multiple discharge tubes, which are installed on the microwave generator in a rectangular and evenly distributed manner.

[0012] In one alternative: a rectifier plate is further provided inside the furnace shell, the rectifier plate being a porous flow equalization plate and located at the flame outlet end face of the microwave generator.

[0013] In one alternative: a first temperature sensor is provided on the outer wall of the flue, the first temperature sensor being used to monitor the internal temperature of the flue.

[0014] In one alternative embodiment: the water pump assembly includes a water inlet pipe and a thermally conductive insulation sleeve. One end of the water inlet pipe is connected to the water inlet end of the heat exchange tube, and the other end is connected to the water outlet end of the water pump unit. The water pump unit is connected to an external water source and is used to pump the external water source into the heat exchange tube and monitor the flow rate of the water pump. The outside of the water inlet pipe is wrapped with a thermally conductive insulation sleeve, and the side wall of the thermally conductive insulation sleeve is provided with thermally conductive ribs extending to the inner wall of the furnace shell.

[0015] In one alternative embodiment: a rear discharge port is provided on the back wall of the furnace shell near the bottom. A receiving assembly is provided inside the furnace shell, including a receiving movable plate, a switching shaft, an extension guide plate, and a switching motor. The lower side of the receiving movable plate is rotatably connected to the back wall of the furnace shell via the switching shaft. The receiving movable plate is opposite to the rear discharge port, and can seal the rear discharge port when the receiving movable plate is in a vertical state. The switching motor is located on the side wall of the furnace shell, and its output end is connected to one end of the switching shaft. An extension guide plate is provided on the end face of the receiving movable plate facing the rear discharge port, and the extension guide plate extends out from the switching motor.

[0016] In one alternative: the receiving plate has a heat insulation layer attached to the surface of the furnace shell.

[0017] A water heater device includes a housing and the aforementioned plasma flame wall-mounted boiler. A control panel is mounted on the outer wall of the housing, and the plasma flame wall-mounted boiler is located inside the housing and is electrically connected to the control panel.

[0018] By adopting the above technical solution, the present invention has the following beneficial effects:

[0019] This invention features a wiping component that contacts the lower surface of the heat exchange tube and slides along the depth of the furnace shell. When the wall-mounted boiler stops operating, this effectively removes dust particles adhering to the lower surface of the heat exchange tube, preventing dust accumulation and the formation of a thermal resistance layer. This maintains the cleanliness of the heat exchange tube surface, ensuring long-term heat exchange efficiency and reducing equipment energy consumption. The heat exchange tube employs an S-shaped coiled structure with evenly spaced heat-conducting fins within its gaps. Adjacent heat-conducting fins form a heat exchange space, increasing the contact time between the high-temperature flue gas and the heat exchange tube, significantly expanding the heat exchange area, enhancing the heat transfer effect, and improving the utilization efficiency of plasma flame thermal energy. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the overall structure of a water heater device according to one embodiment of the present invention.

[0022] Figure 2 This is a schematic diagram of the internal structure of a water heater device according to one embodiment of the present invention.

[0023] Figure 3 This is a schematic diagram of the combustion furnace body from one perspective in one embodiment of the present invention.

[0024] Figure 4 This is a schematic diagram of the combustion furnace body from another perspective in one embodiment of the present invention.

[0025] Figure 5 This is a schematic diagram of a heat exchange tube structure in one embodiment of the present invention.

[0026] Figure 6 This is a schematic diagram of the heat-conducting fin structure in one embodiment of the present invention.

[0027] Figure 7 This is a schematic diagram of the wiping assembly structure in one embodiment of the present invention.

[0028] Figure 8 This is a schematic diagram of the interface component structure in one embodiment of the present invention.

[0029] Reference numerals in the attached drawings: outer casing 100, control panel 200, water outlet pipe 300, flue 400, first temperature sensor 410, combustion furnace body 500, furnace shell 510, heat exchange tube 520, heat-conducting fins 530, flow-guiding protrusion 531, fixing connecting plate 532, wiping assembly 540, scraper frame 541, scraper rod 542, arc-shaped wiping plate 543, wiping cylinder 544, wiping connecting rod 545, microwave generator 550, discharge tube 560, rectifier plate 570, rear discharge port 580, air supply body 600, water pump assembly 700, water inlet pipe 710, heat-conducting insulation sleeve 720, water pumping part 730, heat-conducting rib 740, receiving assembly 800, receiving movable plate 810, switching shaft 820, insulation layer 830, extension guide plate 840, switching motor 850. Detailed Implementation

[0030] The technical solution of the present invention will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] The left, right, up, and down positions of the various components shown in the attached diagram are just one arrangement method; the specific positions should be set according to specific needs.

[0032] In one embodiment, such as Figures 2-5 As shown, a plasma flame wall-mounted boiler includes a water outlet pipe 300, a flue 400, a combustion furnace body 500, and a water pump assembly 700. The combustion furnace body 500 includes a furnace shell 510, heat exchange tubes 520, heat-conducting fins 530, a wiping assembly 540, and a plasma torch generator. The plasma torch generator is located at the bottom of the furnace shell 510 and is used to generate a high-temperature plasma flame inside the furnace shell 510. The heat exchange tubes 520 are located near the top of the furnace shell 510, and their two ends are connected to the water outlet pipe 300 and the water pump assembly 700, respectively. The water pump assembly 700 is connected to an external water supply system and introduces cold water into the heat exchange tube 520. The water outlet pipe 300 is connected to an external water outlet system and is used to export the heated hot water. The heat exchange tube 520 is S-shaped and coiled. The heat-conducting fins 530 are evenly spaced in the gaps of the heat exchange tube 520. The wiping assembly 540 is located on the lower side of the heat-conducting fins 530, which contacts the lower surface of the heat exchange tube 520 and can slide along the depth direction of the outer shell 100 to wipe away the soot particles on the surface of the heat exchange tube 520. The flue 400 is located at the top of the furnace shell 510 and is used to export the hot air generated by the flame.

[0033] In this embodiment of the invention, the plasma torch generator produces a flame by generating a high-temperature and high-energy-density plasma jet from ionized gas. The high-temperature flue gas generated by the flame flows upward. When it passes through the heat exchange tube 520 and the heat-conducting fins 530, cold water guided by the pump water assembly 700 flows inside the heat exchange tube 520 to exchange heat with it. The heat exchange tube 520 is S-shaped and coiled to ensure the contact time between the water flow and the high-temperature flue gas, thereby improving the heat exchange efficiency. The heat-conducting fins 530 absorb heat simultaneously, and their own temperature rises. The straight portion of the heat exchange tube 520 is located between two adjacent heat-conducting fins. A heat exchange space is formed between the heat fins 530 and between adjacent heat-conducting fins 530, further increasing the heat exchange area and enhancing heat transfer. Since the flue gas contains a certain amount of dust particles, when it passes over the surface of the heat exchange tube 520, the dust particles will adhere to the lower surface of the heat exchange tube 520. When the wall-mounted boiler stops working, the wiping component 540 moves in the depth direction relative to the boiler shell 510, and the wiping component 540 contacts the lower surface of the heat exchange tube 520, which can remove the particulate impurities attached to the surface of the heat exchange tube 520 and reduce the impact of particulate impurities on the heat exchange efficiency of the heat exchange tube 520.

[0034] In one embodiment, such as Figures 2-6As shown, the heat-conducting fins 530 are arranged side by side, with one end connected together by a fixing plate 532. The fixing plate 532 is fixed to the inner wall of the furnace shell 510 by bolts. Each heat-conducting fin 530 has a flow-guiding protrusion 531 on both sides to guide the flue gas to flow towards the surface of the heat exchange tube 520. In this embodiment of the invention, the flow-guiding protrusion 531 is inverted triangular in shape, and its inclined surface can guide the flue gas to flow towards the heat exchange tube 520 to increase the contact between the flue gas and the surface of the heat exchange tube 520. The fixing plate 532 connects multiple heat-conducting fins 530 into one unit. Through the thermal conductivity of the fixing plate 532, the heat contained in each heat-conducting fin 530 is uniform.

[0035] In one embodiment, such as Figures 2-7 As shown, the wiping assembly 540 includes a scraping frame 541, a wiping cylinder 544, and two scraping rods 542. The scraping frame 541 is vertically slidable on the inner wall of the furnace shell 510, with both ends extending to the sides of the outermost heat-conducting fins 530. The two heat exchange tubes 520 are parallel and arranged along the width of the furnace shell 510. The scraping rods 542 are provided with multiple arc-shaped wiping blades 543 that contact the straight portions of the heat exchange tubes 520. The ends of the scraping frame 541 are movably connected to the ends of the scraping rods 542 via wiping connecting rods 545. The wiping cylinder 544 is located at the top of the furnace shell 510, and its telescopic end is connected to the scraping frame 541. Fixed connection; In this embodiment of the invention, the wiping cylinder 544 drives the scraping frame 541 to move vertically through its own telescopic action. The scraping frame 541 acts on the two scraping rods 542 respectively through two wiping connecting rods 545. The two scraping rods 542 move synchronously along the length direction of the straight part of the heat exchange tube 520. The arc-shaped wiping plate 543 moves with the scraping rods 542. By utilizing its contact with the surface of the heat exchange tube 520, it can effectively wipe the particulate impurities on the surface of the heat exchange tube 520. After wiping is completed, the wiping cylinder 544 drives the scraping frame 541 and the scraping rods 542 to move back to the initial position, and the arc-shaped wiping plate 543 is located at the end of the straight part of the heat exchange tube 520.

[0036] In one embodiment, such as Figures 2-6As shown, the plasma torch generator includes a microwave generator 550 and discharge tubes 560. The microwave generator 550 is located on the bottom wall inside the furnace shell 510 and is connected to the gas supply body 600 located at the bottom of the furnace shell 510. Multiple discharge tubes 560 are installed on the microwave generator 550 in a rectangular, evenly distributed manner. In this embodiment, the discharge tubes 560 are vertically installed on the surface of the microwave generator 550 and are made of high-temperature resistant ceramic or quartz. An ignition conductor is embedded inside the tube. When the microwave energy is sufficiently strong, air is ionized into a plasma state at this location. The discharge tubes 560 provide the initial energy required for the microwave generator 550 to generate high-frequency microwaves (similar in principle to a microwave oven magnetron) and ionize the air. The microwave generator 550 has an air inlet at its lower end and a flame outlet at its upper end, forming a directional airflow channel that guides the plasma flame upwards. The air inlet is connected to the gas supply body 600, which introduces combustion airflow into the microwave generator 550.

[0037] In one embodiment, such as Figures 2-6 As shown, a rectifier plate 570 is also provided inside the furnace shell 510. The rectifier plate 570 is a porous flow equalization plate and is located at the flame outlet end face of the microwave generator 550. In this embodiment of the invention, the rectifier plate 570 utilizes the "damping" effect of the fluid to divide the originally concentrated single large flame into countless small flames, which greatly increases the contact surface area between the flame and the air / heat exchanger, making the heat flux density very uniform. The furnace shell 510 has a rear discharge port 580 on its outer wall, and the sensing head of the rear discharge port 580 extends to the upper side of the rectifier plate 570. The rear discharge port 580 can sense whether a flame is generated at the outlet of the microwave generator 550.

[0038] In one embodiment, such as Figures 2-4 As shown, a first temperature sensor 410 is installed on the outer wall of the flue 400. The first temperature sensor 410 is used to monitor the internal temperature of the flue 400. When the first temperature sensor 410 is blocked, the internal temperature of the first temperature sensor 410 continues to increase. After exceeding the threshold, the first temperature sensor 410 is activated, and the wall-hung boiler stops working.

[0039] In one embodiment, such as Figures 2-4As shown, the water pump assembly 700 includes an inlet pipe 710 and a thermally conductive insulation sleeve 720. One end of the inlet pipe 710 is connected to the inlet end of the heat exchange tube 520, and the other end is connected to the outlet end of the water pumping unit 730. The water pumping unit 730 is connected to an external water source and is used to pump external water into the heat exchange tube 520 and monitor the flow rate of the pumped water. The thermally conductive insulation sleeve 720 is wrapped on the outside, and the side wall of the thermally conductive insulation sleeve 720 is provided with a thermally conductive rib 740 extending to the inner wall of the furnace shell 510. In this embodiment of the invention, the surface of the thermally conductive insulation sleeve 720 is coated with an insulation layer. The thermally conductive rib 740 and the thermally conductive insulation sleeve 720 can transfer the heat contained in the outer wall of the furnace shell 510 to the inlet pipe 710, thereby preheating the cold water inside the inlet pipe 710.

[0040] In one embodiment, such as Figures 2-8 As shown, a rear discharge port 580 is provided on the back wall of the furnace shell 510 near the bottom. A receiving assembly 800 is installed inside the furnace shell 510, including a receiving movable plate 810, a switching shaft 820, an extension guide plate 840, and a switching motor 850. The lower side of the receiving movable plate 810 is rotatably connected to the back wall of the furnace shell 510 via the switching shaft 820. The receiving movable plate 810 is opposite to the rear discharge port 580, and when the receiving movable plate 810 is in a vertical position, it can seal the rear discharge port 580. The switching motor 850 is located on the side wall of the furnace shell 510, and its output end is connected to one end of the switching shaft 820. An extension guide plate 840 is provided on the end face of the receiving movable plate 810 facing the rear discharge port 580. The extended guide plate 840 extends out from the switching motor 850. In this embodiment of the invention, the switching motor 850 drives the switching shaft 820 to rotate, and the receiving movable plate 810 and the extended guide plate 840 rotate with the switching shaft 820 to switch the vertical and inclined states of the receiving movable plate 810. When the receiving movable plate 810 is in the vertical state, the end face of the receiving movable plate 810 facing the rear discharge port 580 contacts the back wall of the furnace shell 510 to seal the rear discharge port 580 and ensure the sealing of the furnace shell 510. When the cold water stops heating, the receiving movable plate 810 is in the inclined state, and its surface facing the rear discharge port 580 receives the particulate impurities falling from the heat exchange tube 520, and then guides them out through the receiving movable plate 810 and the extended guide plate 840.

[0041] The receiving plate 810 has a heat insulation layer 830 attached to the surface of the furnace shell 510 facing the material receiving plate 810. The heat insulation layer 830 can isolate the flame inside the furnace shell 510 from the influence of the material receiving plate 810.

[0042] The above embodiment provides a plasma flame wall-hung boiler, the working principle of which is as follows:

[0043] This plasma flame wall-mounted boiler uses a plasma torch as a heat source and achieves efficient heating through a water-electricity separation heat exchange structure. During operation, the gas supply unit 600 supplies working gas (such as air, nitrogen, or argon) to the bottom of the combustion furnace body 500. The plasma torch generator (including microwave generator 550 and discharge tube 560) generates a high-temperature, high-energy-density plasma jet at the bottom of the furnace shell 510, forming a continuously burning flame.

[0044] The high-temperature flue gas generated by the flame flows naturally upward inside the furnace shell 510, passing through the top heat exchange zone. In this zone, the heat exchange tubes 520 are coiled in an S-shape, and cold water introduced from the external water supply system by the water pump assembly 700 flows through them. The cold water comes into full contact with the high-temperature flue gas in the long S-shaped path, and the heat transfer is enhanced by the heat-conducting fins 530, causing the water temperature to rise rapidly. The heated hot water is then transported to the external heating or domestic hot water system through the outlet pipe 300. The flue gas, after heat exchange, is discharged from the top flue 400. The control panel 200 is responsible for monitoring various parameters and controlling the start-up, shutdown, and power adjustment of the entire unit.

[0045] During the heat exchange process, dust particles in the flue gas easily adhere to the lower surface of the heat exchange tube 520. When the wall-mounted boiler stops working, the wiping component 540 is activated, sliding along the depth direction of the outer casing 100 and making frictional contact with the lower surface of the heat exchange tube 520 to effectively remove the attached dust and prevent scale buildup from reducing heat exchange efficiency.

[0046] This equipment employs microwave-driven plasma torch technology. A microwave generator 550 produces high-frequency electromagnetic waves, which are transmitted through a waveguide to the discharge tube 560. A working gas is introduced into the discharge tube 560, and under the influence of the high-frequency electric field, the gas is ionized, forming a non-equilibrium plasma. Due to the extremely high electron temperature and relatively controllable gas temperature, instantaneous ignition and adjustable flame temperature can be achieved. A rectifier plate 570 is positioned above the discharge tube 560, ensuring uniform distribution of the plasma jet and preventing backflow of flue gas from interfering with discharge stability. This method eliminates the need for preheating electrodes, resulting in rapid start-up and no carbon smoke generated in the flame, reducing particulate matter generation at the source.

[0047] The heat exchange tube 520 is coiled in an S-shape, significantly extending the heat exchange path within a limited space. Heat-conducting fins 530 are evenly spaced within the straight sections of the heat exchange tube 520, forming independent micro-heat exchange channels between adjacent fins. The surface of the heat-conducting fins 530 also features flow-guiding protrusions 531, which disrupt the flue gas flow boundary layer, creating localized turbulence and significantly improving the convective heat transfer coefficient. A fixing plate 532 connects multiple heat-conducting fins 530 into a single unit, enhancing structural strength and ensuring consistent fin spacing.

[0048] To further reduce heat loss, the water inlet pipe 710 of the pump assembly 700 is covered with a thermally conductive insulation sleeve 720, which uses the waste heat from the flue outlet to preheat the incoming water. At the same time, a thermally conductive rib 740 is provided between the pump section 730 and the furnace shell 510, which can conduct the heat generated by the pump itself to the water inlet pipe, realizing the reuse of waste heat.

[0049] The wiping assembly 540 consists of a scraper frame 541, multiple scraper rods 542, arc-shaped wiping pads 543, a wiping cylinder 544, and a wiping connecting rod 545. The wiping cylinder 544 drives the wiping connecting rod 545 to move the scraper frame 541 reciprocally along the depth direction of the outer shell 100. The arc-shaped wiping pads 543 on the scraper rods 542 are made of high-temperature resistant elastic material, and their curvature is in close contact with the lower surface of the heat exchange tube 520 switching motor 850. When the equipment stops and cools down, this assembly automatically operates for 1-2 strokes to push the dust to the collection area below.

[0050] The dust, wiped off, falls by gravity and enters the dust collection assembly 800 through the gap on the side of the rectifier plate 570 switching motor 850. The dust collection assembly 800 includes a receiving movable plate 810, a switching shaft 820, a heat insulation layer 830, an extension guide plate 840, and a switching motor 850. During normal operation, the receiving movable plate 810 is horizontal, catching dust. When cleaning is required, the switching motor 850 drives the receiving movable plate 810 to tilt via the switching shaft 820, allowing the dust to slide along the extension guide plate 840 to the rear discharge port 580. The user can then remove the dust collection box from the back of the equipment for centralized disposal. The heat insulation layer 830 prevents heat from the high-temperature area from being conducted to the motor, ensuring long-term operational reliability.

[0051] The first temperature sensor 410 is installed inside the flue 400 to monitor the exhaust gas temperature in real time. The control logic is as follows:

[0052] If the flue gas temperature rises sharply (exceeding the set threshold), it indicates that the heat exchange tube surface may be severely dusty, and the system will issue a cleaning prompt and limit power output.

[0053] If the exhaust gas temperature is lower than the normal range, it may be due to malfunction of the plasma torch generator or insufficient gas supply. The system will automatically alarm and shut down.

[0054] Combined with the control panel 200 setting to switch motors 850, the "stop-clean-restart" program can be automatically executed at fixed times every day to ensure that efficient heat exchange is maintained during long-term operation.

[0055] Start-up: The user turns on the switch motor 850 via the control panel 200 → the switch motor 850 water pump assembly 700 starts, water inlet pipe 710 starts to enter the system → the switch motor 850 air supply unit 600 supplies air → the switch motor 850 microwave generator 550 and discharge tube 560 work to generate plasma flame.

[0056] Stable heat exchange: Flame heats flue gas → flue gas rises and flows through S-shaped heat exchange tube 520 and heat-conducting fins 530 → cold water is heated → hot water is output through water outlet pipe 300 → flue gas is discharged through flue 400 (first temperature sensor 410 monitors in real time).

[0057] Shutdown cleaning: User turns off the machine or triggers a timer → flame goes out, water pump shuts off after a delay to cool → switch motor 850 and wiping cylinder 544 to push wiping assembly 540 to reciprocate, removing smoke and dust from the surface of heat exchange tube 520 → dust falls into collection assembly 800.

[0058] Regular dust removal: Maintenance / user operation switch motor 850 → switch motor 850 receiving movable plate 810 flips → dust is discharged from the rear discharge port 580.

[0059] like Figure 1 and Figure 2 As shown, the present invention also provides a water heater device, which includes an outer shell 100 and a plasma flame wall-mounted boiler as described in the above embodiment. A control panel 200 is provided on the outer wall of the outer shell 100, and the plasma flame wall-mounted boiler is located inside the outer shell 100 and is electrically connected to the control panel 200.

[0060] In the description of this invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

Claims

1. A plasma flame wall-hung boiler, comprising a water outlet pipe, a flue, a combustion furnace body, and a water pump assembly, characterized in that, The main body of the combustion furnace includes a furnace shell, heat exchange tubes, heat-conducting fins, wiping components, and a plasma torch generator; The plasma torch generator is located at the bottom of the furnace shell and is used to generate a high-temperature plasma flame inside the furnace shell. The heat exchange tube is located near the top of the furnace shell, with its two ends connected to the water outlet pipe and the water pump assembly, respectively. The water pump assembly is connected to the external water supply system and introduces cold water into the heat exchange tube. The water outlet pipe is connected to the external water outlet system and is used to export the heated hot water. The heat exchange tube is coiled in an S-shape, and the heat-conducting fins are evenly spaced in the gaps of the heat exchange tube. The wiping assembly is located on the underside of the heat-conducting fins, contacts the lower surface of the heat exchange tube, and can slide along the depth direction of the outer shell to wipe away soot particles on the surface of the heat exchange tube; the flue is located at the top of the furnace shell and is used to exhaust the hot gas generated by the flame.

2. The plasma flame wall-mounted boiler and water heater device according to claim 1, characterized in that, The heat-conducting fins are arranged side by side, with one end connected together by a fixing plate. The fixing plate is fixed to the inner wall of the furnace shell by bolts. Each heat-conducting fin has a flow-guiding protrusion on both sides to guide the flue gas to flow to the surface of the heat exchange tube.

3. The plasma flame wall-hung boiler according to claim 2, characterized in that, The wiping assembly includes a scraper frame, a wiping cylinder, and two scraper rods; The scraping frame can be vertically slidably mounted on the inner wall of the furnace shell, with its two ends extending to the side of the heat-conducting fins at the outermost edge. The two heat exchange tubes are parallel and arranged along the width of the furnace shell. The scraping rod is provided with multiple arc-shaped wiping blades that contact the straight part of the heat exchange tubes. The end of the scraping frame is movably connected to the end of the scraping rod through a wiping connecting rod. The wiping cylinder is located on the top of the furnace shell, and its telescopic end is fixedly connected to the scraping frame.

4. The plasma flame wall-hung boiler according to claim 1, characterized in that, The plasma torch generator includes a microwave generator and a discharge tube; The microwave generator is located on the bottom wall inside the furnace shell and is connected to the gas supply main body located at the bottom of the furnace shell. There are multiple discharge tubes, which are installed on the microwave generator in a rectangular and evenly distributed manner.

5. The plasma flame wall-hung boiler according to claim 4, characterized in that, The furnace shell is also equipped with a rectifier plate, which is a porous flow equalization plate and is located at the flame outlet end face of the microwave generator.

6. The plasma flame wall-mounted boiler and water heater device according to claim 1, characterized in that, A first temperature sensor is installed on the outer wall of the flue, which is used to monitor the internal temperature of the flue.

7. The plasma flame wall-hung boiler according to claim 1, characterized in that, The water pump assembly includes a water inlet pipe and a thermally conductive insulation sleeve. One end of the water inlet pipe is connected to the water inlet end of the heat exchange tube, and the other end is connected to the water outlet end of the water pump unit. The water pump unit is connected to an external water source and is used to pump the external water source into the heat exchange tube and monitor the flow rate of the water pump. The outside of the water inlet pipe is wrapped with a thermally conductive insulation sleeve, and the side wall of the thermally conductive insulation sleeve is provided with thermally conductive ribs extending to the inner wall of the furnace shell.

8. The plasma flame wall-hung boiler according to claim 1, characterized in that, The furnace body shell has a rear discharge port near the bottom on the back wall. The furnace body shell is equipped with a receiving component, which includes a receiving movable plate, a switching shaft, an extension guide plate, and a switching motor. The lower side of the receiving movable plate is rotatably connected to the back wall of the furnace shell via a switching shaft. The receiving movable plate is opposite to the rear discharge port, and can seal the rear discharge port when the receiving movable plate is in a vertical state. The switching motor is located on the side wall of the furnace shell, and its output end is connected to one end of the switching shaft. An extended guide plate is provided on the end face of the receiving movable plate facing the rear discharge port, and the extended guide plate extends out from the switching motor.

9. The plasma flame wall-hung boiler according to claim 8, characterized in that, The material receiving plate has a heat insulation layer attached to the surface of the furnace shell.

10. A water heater device, characterized in that, The invention includes an outer casing and a plasma flame wall-hung boiler as described in any one of claims 1-9, wherein a control panel is provided on the outer wall of the outer casing, and the plasma flame wall-hung boiler is located inside the outer casing and is electrically connected to the control panel.

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