Gas wall-hanging stove with condensing heat exchanger

Abstract

The invention discloses a fuel gas wall-hanging stove with a condensation heat exchanger, and relates to the technical field of heat energy engineering and energy conservation, the fuel gas wall-hanging stove comprises a wall-hanging stove body used for heating and domestic hot water supply, a combustion chamber is arranged in the wall-hanging stove body, through arrangement of a collecting device, condensate water generated by the heat exchanger can drip into a collecting hopper, and the collecting hopper is communicated with the combustion chamber; condensed water enters a neutralizing tank through a collecting hopper, calcium carbonate and other related media are added into an adding groove, the condensed water is firstly shunted through a flow guide plate, and when the condensed water enters the neutralizing tank, if the condensed water directly impacts a grid plate, if the condensed water directly impacts the grid plate, water flow concentration, short contact time with calcium carbonate and insufficient acidity neutralization in partial areas are easily caused by uneven water flow speed; the marginal area is sparse in water flow and low in calcium carbonate utilization rate and then reacts with a medium, condensate water is weakly acidic and can corrode a metal pipeline or a drainage system after being directly discharged for a long time, the pH value is adjusted to be neutral or weakly alkaline by reacting with the medium, and acid harm is reduced.

Description

Technical Field

[0001] The present invention relates to the field of thermal energy engineering and energy-saving technology, in particular to a gas wall-mounted boiler with a condensing heat exchanger. Background Art

[0002] Traditional gas wall-mounted boilers have low thermal efficiency and only utilize the sensible heat of flue gas. A large amount of latent heat is discharged with the high-temperature flue gas, and nitrogen oxide emissions are high, making it difficult to meet the needs of energy conservation and environmental protection upgrades. In order to break through the bottleneck, condensation heat exchange technology was introduced. In the early days, it was limited by problems such as condensate corrosion of the heat exchanger and high resistance of the heat exchange structure. Later, it was gradually solved through acid-resistant materials, optimized heat exchange structure and intelligent control technology, and became a high-efficiency equipment to replace traditional models. However, there are still problems such as easy blockage of condensate discharge and frosting at low temperatures that need to be improved.

[0003] The patent with patent announcement number CN215259902U involves the field of thermal energy engineering and energy-saving technology. The utility model discloses a smoke heat recovery structure of a condensing gas wall-mounted boiler, which belongs to the technical field of related devices of condensing gas wall-mounted boilers. It includes a casing, a main heat exchanger is detachably installed on the upper part of the inner wall of the casing, a gas intake pipe and an air intake pipe are connected to one side of the main heat exchanger, a condensation pan is installed at the bottom of the main heat exchanger, a water outlet of the condensation pan is connected to a water storage tank through a pipe, a valve is installed at the water outlet of the water storage tank, a first filter baffle is installed at the upper part of the inner wall of the water storage tank, a filter drawer is connected to the top of the first filter baffle, the bottom of the first filter baffle is connected to the filter element, and the bottom of the filter element is connected to the second filter baffle. The exhaust heat recovery structure of the condensing gas wall-mounted boiler of the utility model can recycle the condensed water condensed from the condensation pan, saving water resources. The exhaust heat recovery structure of the condensing gas wall-mounted boiler of the utility model can filter the flue gas and discharge it, improving the environment.

[0004] In the above patent, however, the current equipment has the following problems: if the acidic condensate is directly discharged into the external pipe or sewer, long-term contact with the acidic water will accelerate the aging of the material, causing the pipe to become brittle and cracked, especially the joints are prone to loosening due to corrosion of the sealant, and the metal pipe will undergo oxidation and rust, and the inner wall will gradually be corroded to form holes. Summary of the Invention

[0005] In view of the deficiencies in the prior art, the present invention provides a gas wall-mounted boiler with a condensing heat exchanger, which solves the problems raised in the above background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a gas wall-mounted boiler with a condensing heat exchanger, comprising a hanging fireplace body, for heating and supplying domestic hot water, a combustion chamber is provided inside the hanging fireplace body, a heat exchanger is provided inside the hanging fireplace body, a collection device, an alarm device and a processing device are provided inside the hanging fireplace body, wherein the collection device comprises a neutralization tank, a collection hopper, a guide plate, a grid plate, a U-shaped pipe, a hollow plate, a push plate and an adding trough, the neutralization tank is fixedly mounted on the inner wall of the hanging fireplace body, the collection hopper is fixedly mounted on the circumferential surface of the neutralization tank, the guide plate is fixedly mounted on the inner wall of the neutralization tank, the grid plate is fixedly mounted on the inner wall of the neutralization tank, and the The plate is fixedly mounted on the inner wall of the neutralization tank, the U-shaped pipe is arranged at the bottom of the neutralization tank, the hollow plate is fixedly mounted on the inner wall of the hanging fireplace body, the push plate is slidably mounted on the inner wall of the hollow plate, the adding groove is fixedly mounted on the inner wall of the hollow plate, the neutralization tank is connected with the U-shaped pipe, the adding groove is connected with the hollow plate, and the surface of the heat exchanger is provided with inclined fins. When the high-temperature flue gas generated in the combustion chamber enters the heat exchanger and is cooled by the heat exchanger, the water vapor in the flue gas condenses into liquid water and adheres to the surface of the heat exchanger. When the condensed water condenses, it will drip along the inclined fins due to gravity. The condensed water will drip into the collection bucket and enter the neutralization tank through the collection bucket for neutralization.

[0007] According to the above technical solution, a fan is provided inside the hanging fireplace body, a smoke exhaust pipe is provided on the top of the hanging fireplace body, and a smoke collection hood is provided inside the hanging fireplace body. The smoke exhaust pipe is connected to the smoke collection hood through the fan, and the combustion chamber is connected to the smoke collection hood. After the gas burns in the combustion chamber, the high-temperature smoke generated will diffuse to the surroundings. The smoke collection hood, through its closed or semi-closed cavity structure, gathers the scattered smoke into a concentrated airflow, thereby preventing the smoke from leaking or staying inside the wall-mounted boiler.

[0008] According to the above technical solution, a gas pipeline is provided at the bottom of the combustion chamber, and a gas valve is provided on the surface of the gas pipeline. There is a risk of leakage at the connection between the gas pipeline and the gas valve. After the installation of the two is completed, a sealing cover is installed around them for sealing protection.

[0009] According to the above technical solution, the warning device includes a partition, a sealing cover, an air intake cover and a driving fan. The partition is fixedly installed on the inner wall of the hanging fireplace body, the sealing cover is arranged on the circumferential surface of the gas pipeline, the air intake cover is fixedly installed on the right side of the partition, and the driving fan is rotatably installed on the inner wall of the air intake cover. When entering the air intake cover, the thrust generated by the flow of gas drives the driving fan to rotate.

[0010] According to the above technical solution, the warning device also includes a driven gear, a driving gear rod, a rotating rod and a shift rod. The driven gear is fixedly mounted on the output end of the driving fan, the driving gear rod is rotatably mounted on the right side of the air intake cover, the driven gear is meshed with the driving gear rod, the rotating rod is rotatably mounted on the right side of the partition, the shift rod is fixedly mounted on the circumferential surface of the rotating rod, the driven gear is in contact with the shift rod, and the rotation of the driving fan drives the driving gear rod to rotate. The rotation of the driving gear rod causes the driven gear to rotate. Through the set gear ratio, the driven gear continues to rotate, and the rotation of the driven gear will contact the shift rod.

[0011] According to the above technical solution, the warning device also includes a knocking rod, an alarm and a sound amplifying cover. The knocking rod is fixedly installed on the right side of the rotating rod, the alarm is arranged at the bottom of the inner wall of the hanging fireplace body, and the sound amplifying cover is fixedly installed on the inner wall of the hanging fireplace body, so that the driving rod drives the rotating rod to rotate, and the rotation of the rotating rod drives the knocking rod to rotate.

[0012] According to the above technical solution, the processing device includes a gas pipe, a main valve, a switch button, a reciprocating screw and a sliding button. The gas pipe is arranged on the inner wall of the hanging fireplace body, the main valve is arranged on the surface of the gas pipe, the switch button is rotatably installed on the movable end of the main valve, the reciprocating screw is fixedly installed on the right side of the driving gear rod, and the sliding button is threadedly installed on the circumferential surface of the reciprocating screw. When the driving gear rod rotates, the reciprocating screw is driven to rotate. The rotation of the reciprocating screw causes the sliding button to move, and the movement of the sliding button causes one side of the lever to move.

[0013] According to the above technical solution, the processing device also includes a fixed rod, a lever, a connecting rod and an exhaust fan. The fixed rod is fixedly installed on the inner wall of the hanging fireplace body, the lever is rotatably installed on the circumferential surface of the fixed rod, one side of the connecting rod is rotatably installed on the surface of the switch button, and the other side of the connecting rod is rotatably installed on the surface of the lever close to the main valve. The exhaust fan is fixedly installed on the right side of the reciprocating screw. One side of the lever moves under the action of the lever principle, causing the other side of the lever to rotate, which causes the connecting rod to move. The movement of the connecting rod causes the switch button to rotate, so that the main valve is closed, and then the exhaust fan is driven to rotate while the reciprocating screw rotates, so that the leaked gas is quickly discharged to the outside.

[0014] The present invention provides a gas wall-mounted boiler with a condensing heat exchanger. It has the following beneficial effects: (1) In this invention, by setting up a collecting device, the condensed water generated by the heat exchanger will drip into the collecting bucket and enter the neutralization tank through the collecting bucket. By adding calcium carbonate and other related media to the adding tank, the condensed water is first diverted through the guide plate. When the condensed water enters the neutralization tank, if it directly impacts the grid plate, it will easily lead to water concentration in some areas due to uneven water flow speed, short contact time with calcium carbonate, and insufficient neutralization of acidity; while the water flow in the edge area is sparse, the utilization rate of calcium carbonate is low, and then the condensed water reacts with the medium. The condensed water is weakly acidic, and long-term direct discharge will corrode metal pipes or drainage systems. By reacting with the medium, the pH value is adjusted to neutral or weakly alkaline, thereby reducing the acidic hazards.

[0015] (2) This invention, through the setting of the collecting device, allows the condensed water after the reaction to enter the U-shaped pipe. The curved structure of the U-shaped pipe will naturally retain a portion of the condensed water, and the sealing property of the water is used to prevent the gas generated in the neutralization tank from flowing upward into the hanging fireplace body or the heat exchanger, thereby avoiding gas accumulation leading to increased system pressure or corrosion inside the heat exchanger.

[0016] (3) This invention, through the setting of the warning device, has the risk of leakage at the connection between the gas pipeline and the gas valve. After the installation of the two is completed, a sealing cover is installed around them. If the gas leaks, the gas will gradually fill the sealing cover and then enter the air intake cover. When entering the air intake cover, the thrust generated by the gas flow drives the fan to rotate, and then the knock rod rotates to continuously contact the alarm bell and generate a sound. The sound is amplified and spread through the sound amplification cover. This process does not require electricity and only relies on the flow kinetic energy of the gas itself. Therefore, it can trigger mechanical movement at the early stage of leakage. Compared with electronic alarms that rely on batteries or circuits, it reduces the risk of power failure and responds more directly.

[0017] (4) This invention, through the setting of the processing device, automatically closes the main valve after the warning device is triggered, so that the gas pipeline stops supplying gas. The main valve is the upstream main switch of the gas pipeline. The processing device can force the main valve to be closed in a short time, directly blocking the flow of gas from the source of the pipeline to the leakage point, realizing fully automatic processing from leak detection to gas source cutting off without the need for intermediate links. This closed-loop design upgrades passive warnings to active intervention, and improves the safety protection level from reminding users to handle to system autonomous resolution, greatly reducing the accident rate.

[0018] (5) This invention, through the setting of the processing device, then drives the exhaust fan to rotate while the reciprocating screw rotates, so that the leaked gas is quickly discharged to the outside. Compared with natural ventilation, the directional exhaust of the exhaust fan can reduce the diffusion time of the gas in the room and accelerate the replacement of indoor and outdoor air. By combining with the warning device, the risk is completely eliminated from cutting off the supply to clearing the residue, avoiding the hidden dangers caused by the residual gas not being treated after a single valve is closed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the internal cross-sectional structure of the hanging fireplace body of the present invention; Figure 3 This is a structural diagram of the heat exchanger and the neutralization tank of the present invention; Figure 4 This is a schematic structural diagram of the collecting device of the present invention; Figure 5 This is a schematic structural diagram of the warning device of the present invention; Figure 6 This is a structural diagram of the fixing rod and the gas pipe of the present invention; Figure 7 For the present invention Figure 6 A schematic diagram of the enlarged structure of part A.

[0020] In the figure: 1. hanging fireplace body; 2. fan; 3. exhaust pipe; 4. smoke collection hood; 5. combustion chamber; 6. heat exchanger; 7. gas pipeline; 8. gas valve; 10. neutralization tank; 11. collecting hopper; 12. guide plate; 13. grid plate; 14. U-shaped pipe; 15. hollow plate; 16. push plate; 17. adding slot; 20. partition; 21. sealing cover; 22. air intake hood; 23. driving fan; 24. driven gear; 25. driving gear rod; 26. rotating rod; 27. shift lever; 28. knocking rod; 29. ​​alarm; 210. sound amplification cover; 30. gas pipe; 31. main valve; 32. switch button; 33. reciprocating screw; 34. sliding button; 35. fixing rod; 36. lever; 37. connecting rod; 38. exhaust fan. DETAILED DESCRIPTION

[0021] The following will provide a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0022] See also Figures 1-4, one embodiment of the present invention is: a gas wall-mounted boiler with a condensing heat exchanger, including a hanging fireplace body 1, for heating and domestic hot water supply, the hanging fireplace body 1 is provided with a combustion chamber 5, the hanging fireplace body 1 is provided with a heat exchanger 6, the hanging fireplace body 1 is provided with a collecting device, wherein the collecting device includes a neutralization tank 10, a collecting bucket 11, a guide plate 12, a grid plate 13, a U-shaped pipe 14, a hollow plate 15, a push plate 16 and an adding trough 17, the neutralization tank 10 is fixedly mounted on the inner wall of the hanging fireplace body 1, the collecting bucket 11 is fixedly mounted on the circumferential surface of the neutralization tank 10, and the guide plate 12 is fixedly mounted on the inner wall of the neutralization tank 10, the condensed water is first diverted by the guide plate 12, when the condensed water enters the neutralization tank 10, if it directly impacts the grid plate 13, it is easy to cause the water flow to concentrate in some areas due to uneven water flow velocity, the contact time with calcium carbonate is short, and the acid is not fully neutralized; while the water flow in the edge area is sparse, and the utilization rate of calcium carbonate is low. The grating plate 13 is fixedly mounted on the inner wall of the neutralization tank 10, the U-shaped pipe 14 is arranged at the bottom of the neutralization tank 10, the hollow plate 15 is fixedly mounted on the inner wall of the hanging fireplace body 1, the push plate 16 is slidably mounted on the inner wall of the hollow plate 15, and the adding groove 17 is fixedly mounted on the inner wall of the hollow plate 15. It then reacts with the medium. The condensed water is weakly acidic. Long-term direct discharge will corrode metal pipes and concrete drainage systems. The pH value is adjusted to neutral or weakly alkaline by reacting with the medium to reduce the acidic hazards. The neutralization tank 10 is connected to the U-shaped pipe 14, and the adding groove 17 is connected to the hollow plate 15. The surface of the heat exchanger 6 is provided with inclined fins. The condensed water after the reaction will enter the U-shaped pipe 14. The curved structure of the U-shaped pipe 14 will naturally retain a part of the condensed water. The water sealing property is used to prevent the gas generated in the neutralization tank 10 from rushing upward into the hanging fireplace body 1 or the heat exchanger 6, so as to avoid gas accumulation leading to increased system pressure or corrosion inside the heat exchanger 6.

[0023] A fan 2 is provided inside the hanging fireplace body 1, and the impeller is driven by a motor to rotate to generate a pressure difference, thereby realizing the forced transportation of smoke, while taking into account the supply of air required for combustion. A smoke exhaust pipe 3 is provided on the top of the hanging fireplace body 1, and a smoke collection hood 4 is provided inside the hanging fireplace body 1. The smoke exhaust pipe 3 is connected to the smoke collection hood 4 through the fan 2, and the combustion chamber 5 is connected to the smoke collection hood 4, so that the dispersed smoke is efficiently collected through the smoke collection hood 4.

[0024] A gas pipeline 7 is provided at the bottom of the combustion chamber 5 , and a gas valve 8 is provided on the surface of the gas pipeline 7 . There is a risk of leakage at the connection between the gas pipeline 7 and the gas valve 8 .

[0025] When the embodiment is working, the high-temperature flue gas generated by the combustion chamber 5 enters the heat exchanger 6. After being cooled by the heat exchanger 6, the water vapor in the flue gas condenses into liquid water and adheres to the surface of the heat exchanger 6. When the condensed water condenses, it will drip along the inclined fins due to gravity. The condensed water will drip into the collection bucket 11 and enter the neutralization tank 10 through the collection bucket 11. At this time, by adding calcium carbonate and other related media to the adding tank 17, these media will eventually move to the inside of the hollow plate 15, and then manually press the push plate 16 to make it move. The push plate 16 pushes the medium into the neutralization tank 10. On the grid plate 13, the condensed water is first diverted by the guide plate 12. When the condensed water enters the neutralization tank 10, if it directly impacts the grid plate 13, it is easy to cause the water flow to concentrate in some areas due to uneven water flow speed, resulting in a short contact time with calcium carbonate and insufficient neutralization of the acidity; while the water flow in the edge area is sparse and the utilization rate of calcium carbonate is low. Subsequently, the condensed water reacts with the medium, and is weakly acidic. Long-term direct discharge will corrode metal pipes and concrete drainage systems. The pH value is adjusted to neutral or weakly alkaline by reacting with the medium, reducing the acidic hazard. The condensed water after the reaction will enter the U-shaped pipe 14. The curved structure of the U-shaped pipe 14 will naturally retain a portion of the condensed water, and the water sealing property will be used to prevent the gas generated in the neutralization tank 10 from flowing upward into the fireplace body 1 or the heat exchanger 6, thereby avoiding gas accumulation leading to increased system pressure or corrosion inside the heat exchanger 6.

[0026] See also Figure 1-Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a warning device and a processing device are provided inside the hanging fireplace body 1. The warning device includes a partition 20, a sealing cover 21, an air intake cover 22 and a driving fan 23. The partition 20 is fixedly mounted on the inner wall of the hanging fireplace body 1, the sealing cover 21 is arranged on the circumferential surface of the gas pipeline 7, the air intake cover 22 is fixedly mounted on the right side of the partition 20, and the driving fan 23 is rotatably mounted on the inner wall of the air intake cover 22. The sealing cover 21 is installed around it. If the gas leaks, the gas will gradually fill the sealing cover 21 and then enter the air intake cover 22.

[0027] The warning device also includes a driven gear 24, a driving gear rod 25, a rotating rod 26 and a shift lever 27. The driven gear 24 is fixedly mounted on the output end of the drive fan 23, the driving gear rod 25 is rotatably mounted on the right side of the air intake hood 22, the driven gear 24 is engaged with the driving gear rod 25, the rotating rod 26 is rotatably mounted on the right side of the partition 20, the shift lever 27 is fixedly mounted on the circumferential surface of the rotating rod 26, the driven gear 24 is in contact with the shift lever 27, and the driven gear 24 is continuously rotated by setting the gear ratio.

[0028] The warning device also includes a knocking rod 28, an alarm bell 29 and a sound amplifying cover 210. The knocking rod 28 is fixedly installed on the right side of the rotating rod 26, the alarm bell 29 is set at the bottom of the inner wall of the hanging fireplace body 1, and the sound amplifying cover 210 is fixedly installed on the inner wall of the hanging fireplace body 1. When the knocking rod 28 rotates, it will continue to contact the alarm bell 29 and produce sound, and the sound is amplified and spread through the sound amplifying cover 210. This process does not require electricity and only relies on the flow kinetic energy of the gas itself. Therefore, it can trigger mechanical movement at the early stage of leakage. Compared with electronic alarms that rely on batteries or circuits, it reduces the risk of power failure and has a more direct response.

[0029] The processing device includes a gas pipe 30, a main valve 31, a switch button 32, a reciprocating screw 33 and a sliding button 34. The gas pipe 30 is arranged on the inner wall of the hanging fireplace body 1, the main valve 31 is arranged on the surface of the gas pipe 30, the switch button 32 is rotatably installed on the movable end of the main valve 31, the reciprocating screw 33 is fixedly installed on the right side of the driving gear rod 25, and the sliding button 34 is threadedly installed on the circumferential surface of the reciprocating screw 33, so that the gas pipe 30 stops supplying gas. The main valve 31 is the upstream main switch of the gas pipe 30. Through the above method, the main valve 31 can be forced to close in a short time, directly blocking the flow of gas from the pipeline source to the leakage point, realizing fully automatic processing from leak detection to gas source cutting off, without the need for intermediate links. This closed-loop design upgrades passive warnings to active intervention, and the safety protection level is improved from reminding users to handle to system autonomous resolution, greatly reducing the accident rate.

[0030] The processing device also includes a fixed rod 35, a lever 36, a connecting rod 37 and an exhaust fan 38. The fixed rod 35 is fixedly mounted on the inner wall of the hanging fireplace body 1, the lever 36 is rotatably mounted on the circumferential surface of the fixed rod 35, one side of the connecting rod 37 is rotatably mounted on the surface of the switch button 32, and the other side of the connecting rod 37 is rotatably mounted on the surface of the lever 36 close to the main valve 31. The exhaust fan 38 is fixedly mounted on the right side of the reciprocating screw 33, so that the leaked gas is quickly discharged to the outside. Compared with natural ventilation, the directional exhaust of the exhaust fan 38 can reduce the diffusion time of the gas in the room, and can accelerate the replacement of indoor and outdoor air. By combining with the warning device, the risk is completely eliminated from cutting off the supply to clearing the residue, avoiding the hidden dangers caused by the untreated residual gas after a single valve closing.

[0031] When the present embodiment is in operation, there is a risk of leakage at the connection between the gas pipeline 7 and the gas valve 8. After the two are installed, a sealing cover 21 is installed around them. If gas leaks, the gas will gradually fill the sealing cover 21 and then enter the air intake cover 22. When entering the air intake cover 22, the thrust generated by the gas flow drives the driving fan 23 to rotate. The rotation of the driving fan 23 drives the driving gear rod 25 to rotate. The rotation of the driving gear rod 25 causes the driven gear 24 to rotate. The set gear ratio causes the driven gear 24 to rotate continuously. The rotation of the driven gear 24 will contact the shift lever 27, so that the shift lever 27 drives the rotating lever 26 to rotate. The rotation of the rotating lever 26 drives the knocking lever 28 to rotate. The rotation of the knocking lever 28 will continuously contact the alarm bell 29 and generate a sound. The sound is amplified and propagated through the sound amplification cover 210. This process does not require electricity and only relies on the kinetic energy of the gas flow itself. Therefore, the mechanical movement can be triggered at the early stage of the leakage. Compared with electronic alarms that rely on batteries or circuits, the risk of power failure is reduced and the response is more direct. When the driving gear rod 25 rotates, the reciprocating screw rod 33 is driven to rotate. The rotation of the reciprocating screw rod 33 causes the sliding button 34 to move. The movement of the sliding button 34 causes one side of the lever 36 to move. Under the action of the lever principle, the movement of one side of the lever 36 causes the other side of the lever 36 to rotate, which causes the connecting rod 37 to move. The movement of the connecting rod 37 causes the switch button 32 to rotate, so that the main valve 31 is closed, so that the gas supply pipe 30 stops supplying gas. The main valve 31 is the upstream main switch of the gas pipe 30. The above method can force the main valve 31 to be closed in a short time, directly blocking the gas from flowing from the pipeline source to the leakage point. , realizing fully automatic processing from leak detection to gas source cutting off without the need for intermediate links. This closed-loop design upgrades passive warnings to active intervention, and the safety protection level is improved from reminding users to handle to system autonomous resolution, which greatly reduces the accident rate. Subsequently, while the reciprocating screw 33 rotates, it drives the exhaust fan 38 to rotate, so that the leaked gas is quickly discharged to the outdoors. Compared with natural ventilation, the directional exhaust of the exhaust fan 38 can reduce the diffusion time of gas in the room and accelerate the replacement of indoor and outdoor air. By combining with the warning device, the risk is completely eliminated from cutting off the supply to clearing the residue, avoiding the hidden dangers caused by the untreated residual gas after a single valve is closed.

[0032] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A gas wall-mounted boiler with a condensing heat exchanger, comprising a hanging fireplace body (1), characterized in that: For heating and domestic hot water supply, a combustion chamber (5) is provided inside the hanging fireplace body (1), a heat exchanger (6) is provided inside the hanging fireplace body (1), and a collection device, a warning device, and a processing device are provided inside the hanging fireplace body (1); The collecting device comprises a neutralization tank (10), a collecting hopper (11), a guide plate (12), a grid plate (13), a U-shaped pipe (14), a hollow plate (15), a push plate (16) and an adding trough (17), wherein the neutralization tank (10) is fixedly mounted on the inner wall of the hanging fireplace body (1), the collecting hopper (11) is fixedly mounted on the circumferential surface of the neutralization tank (10), the guide plate (12) is fixedly mounted on the inner wall of the neutralization tank (10), and the grid plate (13) is fixedly mounted on the inner wall of the neutralization tank (10). The inner wall of the tank (10), the U-shaped pipe (14) is arranged at the bottom of the neutralization tank (10), the hollow plate (15) is fixedly installed on the inner wall of the hanging fireplace body (1), the push plate (16) is slidably installed on the inner wall of the hollow plate (15), the adding groove (17) is fixedly installed on the inner wall of the hollow plate (15), the neutralization tank (10) is communicated with the U-shaped pipe (14), the adding groove (17) is communicated with the hollow plate (15), and the surface of the heat exchanger (6) is provided with inclined fins.

2. The gas wall-mounted boiler with a condensing heat exchanger according to claim 1, characterized in that: A fan (2) is provided inside the hanging fireplace body (1), a smoke exhaust pipe (3) is provided on the top of the hanging fireplace body (1), a smoke collecting hood (4) is provided inside the hanging fireplace body (1), the smoke exhaust pipe (3) is connected to the smoke collecting hood (4) through the fan (2), and the combustion chamber (5) is connected to the smoke collecting hood (4).

3. The gas wall-mounted boiler with a condensing heat exchanger according to claim 2, characterized in that: A gas pipeline (7) is provided at the bottom of the combustion chamber (5), and a gas valve (8) is provided on the surface of the gas pipeline (7).

4. The gas wall-mounted boiler with a condensing heat exchanger according to claim 3, characterized in that: The warning device comprises a partition (20), a sealing cover (21), an air intake cover (22) and a driving fan (23); the partition (20) is fixedly mounted on the inner wall of the hanging fireplace body (1); the sealing cover (21) is arranged on the circumferential surface of the gas pipeline (7); the air intake cover (22) is fixedly mounted on the right side of the partition (20); and the driving fan (23) is rotatably mounted on the inner wall of the air intake cover (22).

5. The gas wall-mounted boiler with a condensing heat exchanger according to claim 4, characterized in that: The warning device further comprises a driven gear (24), a driving gear rod (25), a rotating rod (26) and a shifting rod (27), wherein the driven gear (24) is fixedly mounted on the output end of the driving fan (23), the driving gear rod (25) is rotatably mounted on the right side of the air intake cover (22), the driven gear (24) is meshed with the driving gear rod (25), the rotating rod (26) is rotatably mounted on the right side of the partition (20), the shifting rod (27) is fixedly mounted on the circumferential surface of the rotating rod (26), and the driven gear (24) is in contact with the shifting rod (27).

6. The gas wall-mounted boiler with a condensing heat exchanger according to claim 5, characterized in that: The warning device further comprises a knocking rod (28), an alarm bell (29) and a sound amplifying cover (210), wherein the knocking rod (28) is fixedly mounted on the right side of the rotating rod (26), the alarm bell (29) is arranged at the bottom of the inner wall of the hanging fireplace body (1), and the sound amplifying cover (210) is fixedly mounted on the inner wall of the hanging fireplace body (1).

7. The gas wall-mounted boiler with a condensing heat exchanger according to claim 6, characterized in that: The processing device comprises a gas supply pipe (30), a main valve (31), a switch button (32), a reciprocating screw rod (33) and a sliding button (34), wherein the gas supply pipe (30) is arranged on the inner wall of the hanging fireplace body (1), the main valve (31) is arranged on the surface of the gas supply pipe (30), the switch button (32) is rotatably mounted on the movable end of the main valve (31), the reciprocating screw rod (33) is fixedly mounted on the right side of the driving gear rod (25), and the sliding button (34) is threadedly mounted on the circumferential surface of the reciprocating screw rod (33).

8. The gas wall-mounted boiler with a condensing heat exchanger according to claim 7, characterized in that: The processing device further comprises a fixed rod (35), a lever (36), a connecting rod (37) and an exhaust fan (38), wherein the fixed rod (35) is fixedly mounted on the inner wall of the hanging fireplace body (1), the lever (36) is rotatably mounted on the circumferential surface of the fixed rod (35), one side of the connecting rod (37) is rotatably mounted on the surface of the switch button (32), and the other side of the connecting rod (37) is rotatably mounted on the surface of the lever (36) on the side close to the main valve (31), and the exhaust fan (38) is fixedly mounted on the right side of the reciprocating screw rod (33).

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