Gas wall-hanging stove and using method thereof

Abstract

The invention discloses a fuel gas wall-hanging stove and a using method thereof, and relates to the technical field of fuel gas wall-hanging stoves, the fuel gas wall-hanging stove comprises a shell and a combustion chamber; comprising a premixer, a combustor, a main heat exchanger and a fan; comprising a condensation chamber, a condensation piece and a smoke exhaust pipe. The water heater has the beneficial effects that when water flow is heated, the combustor ignites fuel gas and generates flue gas carrying high temperature, and when the flue gas passes through the main heat exchanger, the flue gas is circularly heated through the water channel wound outside the main heat exchanger so as to prolong the heating time of the water flow and ensure that the temperature of the water flow is fully increased; the discharged flue gas is cooled through the arranged condensation assembly, so that the temperature of the flue gas discharged into the outside air is low, and potential safety hazards are avoided; the condensation piece is communicated with the combustion chamber, so that smoke which is still high in temperature after passing through the main heat exchanger preheats water flow just entering the water channel, the water flow is heated twice, and the temperature of the water flow is fully increased.

Description

Technical Field

[0001] The invention relates to the technical field of gas wall-mounted boilers, and in particular to a gas wall-mounted boiler and a use method thereof. Background Art

[0002] A gas wall-mounted boiler is a household appliance that can provide heating and domestic hot water. It heats water by burning natural gas or liquefied petroleum gas, and then delivers the hot water to the radiator or floor heating system for heating. It can also provide domestic hot water. Traditional gas wall-mounted boilers have the following problems during operation: First, the flue gas exhaust temperature is relatively high (usually 160℃~250℃), resulting in insufficient recovery of the sensible heat and latent heat of water vapor in the flue gas, and generally low thermal efficiency; second, the flue is prone to dust accumulation or scaling after long-term use, which affects the heat exchange efficiency and has high manual cleaning costs; third, scale is easily generated on the inner wall of the heat exchange pipe, which hinders heat transfer and reduces system energy efficiency.

[0003] For example, the patent with the authorization announcement number CN118687259B and the authorization announcement date January 21, 2025, and the name of "A Condensing Gas Wall-mounted Boiler", includes a combustion heating area and a condensing heat exchange area. The combustion heating area includes a burner and a combustion heating assembly. A flue gas channel is arranged between the combustion heating area and the condensing heat exchange area. A fan wheel driven by a fan wheel driving motor is installed at the flue gas channel; the fan wheel driving motor of the condensing gas wall-mounted boiler is used to automatically drive the rotating rod and the scraper to realize automatic cleaning of the inner wall of the heat pipe, thereby reducing the need and cost of manual cleaning; improving thermal efficiency, automatically and regularly removing scale on the inner wall of the heat pipe, ensuring heat exchange efficiency, and avoiding heat loss caused by scale accumulation; easy maintenance, the design allows quick disassembly and assembly of the first heat pipe joint and the second heat pipe joint, which is convenient for maintenance and replacement of parts.

[0004] The prior art generally cleans the scale and the like inside the heat pipe by adding a mechanism of a driving component, thereby improving the heat exchange efficiency of the gas wall-mounted boiler. However, the prior art rarely collects and reuses the waste heat of the flue gas after combustion, and the gas of the gas wall-mounted boiler in the prior art is difficult to fully burn, so that the flue gas after combustion and heating the heat pipe is directly cooled and discharged, resulting in large energy loss and waste of resources. Therefore, there is an urgent need for a gas wall-mounted boiler that integrates efficient waste heat utilization and scale treatment to improve thermal efficiency, reduce maintenance costs and extend equipment life. Summary of the invention

[0005] The object of the present invention is to provide a gas wall-mounted boiler and a method of using the same to solve the above-mentioned deficiencies in the prior art.

[0006] In order to achieve the above object, the present invention provides the following technical solutions:

[0007] A gas wall-mounted boiler comprises a shell, a combustion chamber is arranged in the middle of the shell, a combustion assembly is arranged in the combustion chamber, and the gas wall-mounted boiler further comprises:

[0008] A shell, the shell comprising a water inlet pipe, a water outlet pipe, a water channel and a gas pipe, the water inlet pipe and the water outlet pipe are arranged inside the shell, and joints between the water inlet pipe and the water outlet pipe and the outside are arranged on both sides of the lower end of the shell, the joint between the gas pipe and the outside is arranged between the water inlet pipe and the water outlet pipe, and the water inlet pipe and the water outlet pipe are connected through the water channel;

[0009] A combustion assembly, the combustion assembly comprising a premixer, a burner, a main heat exchanger and a fan, the premixer is connected to the gas pipe and the air pipe, the premixer is communicated with the burner, the main heat exchanger is arranged above the burner, the water channel is wound around the outside of the main heat exchanger, and the burner is communicated with the fan;

[0010] A condensation component, the condensation component includes a condensation chamber, a condensation element and a smoke exhaust pipe, the condensation chamber is arranged on the upper side of the inner part of the shell, the condensation element is communicated with the combustion chamber, the condensation element is arranged in the condensation chamber, the water channel winds through the condensation chamber, and the condensation element is arranged on the outside of the water channel, the smoke exhaust pipe is arranged on one side of the condensation chamber, and the smoke exhaust pipe is communicated with the condensation chamber.

[0011] As mentioned above, the main heat exchanger further includes heat exchange fins and heat exchange tubes. The heat exchange fins are evenly distributed, and a plurality of heat exchange tubes are arranged inside the heat exchange fins. The water channel is spirally wound around the outer side of the heat exchange fins.

[0012] As mentioned above, the smoke exhaust pipe includes an outer pipe and an inner pipe, the outer pipe is sleeved on the outside of the inner pipe, the outer pipe is connected to the condensation chamber, and the inner pipe is connected to the condensation element.

[0013] As mentioned above, a connecting pipe is opened on the side of the condensation chamber, and the condensation chamber is connected with the combustion chamber through the connecting pipe. A condensation pipe is arranged at the bottom of the condensation chamber, and the condensation chamber is not connected with the inside of the condensation element.

[0014] The above also includes a cleaning component, which is arranged on the inner tube and is located on the inner side of the outer tube.

[0015] As mentioned above, the cleaning component includes a rotating sleeve, fan blades, a mounting shaft, a connecting rod and a spiral scraper. A plurality of rotating sleeves are rotatably arranged on the inner tube, and each of the rotating sleeves is provided with the fan blades. The fan blades are connected by a mounting shaft, and a plurality of connecting rods are evenly arranged along the axial direction on the outer side of the mounting shaft, and a plurality of spiral scrapers are arranged on the outer side of the connecting rod.

[0016] As mentioned above, blades with a spiral direction opposite to that of the fan blades are arranged on the outer side of the rotating sleeve.

[0017] The above also includes a filter assembly, which is arranged at the joint of the water outlet pipe and is inside the shell.

[0018] As mentioned above, the filter assembly includes a filter, a filter screen is arranged on the upper side of the inside of the filter, the filter screen is in a concave disc shape and a receiving space is formed on the upper part, filter cotton is arranged in the receiving space, a replacement filter element is arranged in the middle part of the inner side of the filter, and irregular pits are arranged on the outer side of the replacement filter element.

[0019] A method for using a gas wall-mounted boiler, the method for using a gas wall-mounted boiler is applicable to the above-mentioned gas wall-mounted boiler, comprising the following steps:

[0020] Step 1: Install the gas wall-mounted boiler, connect the external water pipe with the water inlet pipe, connect the water outlet pipe with the external water outlet terminal, and connect the gas pipe with the external gas pipe through a pipeline. After the water inlet pipe, the water outlet pipe and the gas pipe are connected with the outside, power on the gas wall-mounted boiler and start it;

[0021] Step 2: After the gas wall-mounted boiler is powered on, when hot water is needed, the external water outlet terminal is opened, and water flows through the water inlet pipe to the waterway, and flows through the water outlet pipe to the external water outlet terminal. When the water flows through the water inlet pipe and the waterway, the gas wall-mounted boiler can heat the water flowing through: After the gas wall-mounted boiler is powered on, when the water flows through the water inlet pipe to the waterway, the gas and air are premixed through the premixer, and the premixed gas is transported to the burner through the fan, so that the burner sprays the premixed gas after power is turned on. and air, at which time the flue gas after combustion is pushed by the premixed gas continuously delivered by the fan to flow to the main heat exchanger, so that the flue gas after combustion flows through the heat exchange tube, so that the heat exchange tube transfers the heat to the water channel wound on the heat exchange plate through the heat exchange plate, so that the flue gas with high temperature after combustion heats the water flow in the water channel through the heat exchange plate and the heat exchange tube, and the heated water flows from the water channel to the water outlet pipe and flows out hot water from the external water outlet terminal; when the water flow heated by the main heat exchanger flows to the water outlet pipe, the water flow will flow through The filter assembly at this time filters the heated water flow through the filter screen and the filter cotton arranged on the filter screen to prevent scale in the water flow from flowing to the external water outlet terminal, ensuring that the used water flow is clean. At the same time, the fine scale in the water flow flowing through the filter can be adsorbed by the replacement filter element. The irregular pits on the surface of the replacement filter element are used to adsorb scale. After the filter cotton filters impurities for a period of time and the replacement filter element adsorbs scale for a period of time, the filter cotton can be replaced and the replacement filter element can be cleaned or replaced to ensure that the filter is clean. In addition, when the water flow is heated in the water channel at the main heat exchanger, the flue gas passing through the main heat exchanger needs to be discharged to the outside. Although the heat of the flue gas at this time has decreased, its temperature is still much higher than the water flow just entering the water channel. In this way, the flue gas after passing through the main heat exchanger flows into the condensing element, so that the condensing element preheats the water flow in the water channel wound around its outside, so that the temperature of the water flow before passing through the main heat exchanger is further increased, thereby accelerating the efficiency of the gas wall-mounted boiler in raising the water temperature and saving energy.The flue gas passing through the condensing element is discharged to the outside through the inner tube. At this time, the discharged flue gas can drive the plurality of fan blades arranged in the inner tube to rotate, so that the fan blades drive the installation shaft to rotate, so that the installation shaft drives the spiral scraper to rotate through the connecting rod, so that the spiral scraper will rotate and scrape the inner wall of the inner tube to remove the smoke formed by the flue gas in the inner tube. When the fan blades rotate, the fan blades can drive the rotating sleeve to rotate, so that the rotating sleeve drives the blades arranged on the outside thereof to rotate, so that the blades suck the outside air from the outside into the condensing chamber, so that the cold air from the outside cools the flue gas inside through the condensing element, ensuring that the temperature of the high-temperature flue gas is low when it is discharged to the outside, and the condensed water generated during condensation flows out through the condensation pipe. At the same time, the blades continue to absorb the outside air, so that the outside air flows to the combustion chamber through the connecting pipe after condensation, so that the outside air is mixed with the premixed air in the combustion chamber to ensure that the gas is fully burned;

[0022] Step 3: The external water outlet water terminal is closed, at which time the fan, the burner and the water flow stop. At this time, the fan blades and the blades still rotate due to inertia, so that the outside air enters the combustion chamber of the gas wall-mounted boiler while the smoke in the gas wall-mounted boiler continues to be discharged to avoid safety hazards caused by residual gas.

[0023] In the above technical solution, the beneficial effects of the present invention are:

[0024] 1. The present invention heats the water flow entering the gas wall-mounted boiler through a combustion assembly. When the water flow is heated, the burner ignites the gas and generates high-temperature flue gas. When the flue gas passes through the main heat exchanger, it is circulated and heated through the water channel wrapped around the outside of the main heat exchanger, thereby extending the heating time of the water flow in the water channel and ensuring that the temperature of the water flow is fully increased;

[0025] 2. The present invention cools down the discharged flue gas through the condensation component so that the temperature of the flue gas discharged into the outside air is low, thus avoiding potential safety hazards;

[0026] 3. The present invention connects the condensing element with the combustion chamber so that the high-temperature flue gas after combustion first passes through the main heat exchanger, so that the main heat exchanger heats the water flow in the water channel. At the same time, the flue gas passing through the main heat exchanger enters the condensing element, so that the flue gas with still high temperature preheats the water flow just entering the water channel, so that the water flow is heated twice in the gas wall-mounted boiler, ensuring that the temperature of the water flow flowing out of the gas wall-mounted boiler is sufficiently increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0028] Figure 1 A schematic diagram of the three-dimensional structure of a gas wall-mounted boiler provided in an embodiment of the present invention;

[0029] Figure 2 A front view of a gas wall-mounted boiler provided in another embodiment of the present invention;

[0030] Figure 3 A top view of a gas wall-mounted boiler provided in another embodiment of the present invention;

[0031] Figure 4 Another embodiment of the present invention provides Figure 3 Sectional view at AA;

[0032] Figure 5 Another embodiment of the present invention provides Figure 4 A local enlarged schematic diagram of K;

[0033] Figure 6 Another embodiment of the present invention provides Figure 4 A local enlarged schematic diagram of the M position;

[0034] Figure 7 Another embodiment of the present invention provides Figure 4 A local enlarged schematic diagram of location N.

[0035] Description of reference numerals:

[0036] 1. Shell; 10. Water inlet pipe; 11. Water outlet pipe; 12. Waterway; 13. Gas pipe; 2. Combustion chamber; 3. Combustion assembly; 30. Premixer; 31. Burner; 32. Main heat exchanger; 320. Heat exchange plate; 321. Heat exchange tube; 33. Fan; 4. Condensation assembly; 40. Condensation chamber; 41. Condensation element; 42. Smoke exhaust pipe; 420. Outer pipe; 421. Inner pipe; 400. Connecting pipe; 401. Condensation tube; 5. Cleaning assembly; 50. Rotating sleeve; 500. Blade; 51. Fan blade; 52. Mounting shaft; 53. Connecting rod; 54. Spiral scraper; 6. Filter assembly; 60. Filter; 61. Filter screen; 62. Filter cotton; 63. Replacement filter element. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0038] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "vertical", "horizontal", "side", "inside", "outside", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] like Figure 1-7 As shown, a gas wall-mounted boiler provided in an embodiment of the present invention comprises a shell 1, a combustion chamber 2 is arranged in the middle of the shell 1, a combustion assembly 3 is arranged in the combustion chamber 2, and the gas wall-mounted boiler further comprises:

[0040] A shell 1, the shell 1 comprising a water inlet pipe 10, a water outlet pipe 11, a water channel 12 and a gas pipe 13, the water inlet pipe 10 and the water outlet pipe 11 are arranged inside the shell 1, and joints between the two and the outside are arranged on both sides of the lower end of the shell 1, the joint between the gas pipe 13 and the outside is arranged between the water inlet pipe 10 and the water outlet pipe 11, and the water inlet pipe 10 and the water outlet pipe 11 are connected through the water channel 12;

[0041] The combustion assembly 3 includes a premixer 30, a burner 31, a main heat exchanger 32 and a fan 33. The premixer 30 is connected to the gas pipe 13 and the air pipe. The premixer 30 is in communication with the burner 31. The main heat exchanger 32 is arranged above the burner 31. The water channel 12 is wound around the outside of the main heat exchanger 32. The burner 31 is in communication with the fan 33.

[0042] The condensation component 4 includes a condensation chamber 40, a condensation element 41 and a smoke exhaust pipe 42. The condensation chamber 40 is arranged on the upper side of the inner part of the outer shell 1, and the condensation element 41 is communicated with the combustion chamber 2. The condensation element 41 is arranged in the condensation chamber 40, and the water channel 12 winds through the condensation chamber 40, and the condensation element 41 is arranged on the outside of the water channel 12. The smoke exhaust pipe 42 is arranged on one side of the condensation chamber 40, and the smoke exhaust pipe 42 is communicated with the inside of the condensation chamber 40.

[0043] In another embodiment provided by the present invention, the main heat exchanger 32 further includes a heat exchange fin 320 and a heat exchange tube 321, the heat exchange fin 320 is evenly arranged, and a plurality of the heat exchange tubes 321 are arranged in the heat exchange fin 320, and the water channel 12 is spirally wound around the outer side of the heat exchange fin 320;

[0044] The specific implementation is as follows: the heat exchange tube 321 connects the combustion and condensation chambers 40, and the heat exchange plates 320 are evenly arranged on the outside of the heat exchange tube 321, so that the flue gas generated after the burner 31 ignites the premixed gas and air will flow through the heat exchange tube 321, so that the heat exchange tube 321 transfers heat to the heat exchange plates 320, thereby allowing the heat exchange plates 320 to heat the water flow in the water channel 12 wound thereon.

[0045] In another embodiment provided by the present invention, the smoke exhaust pipe 42 includes an outer pipe 420 and an inner pipe 421, the outer pipe 420 is sleeved on the outer side of the inner pipe 421, the outer pipe 420 is connected to the condensation chamber 40, and the inner pipe 421 is connected to the condensation element 41;

[0046] The specific implementation is as follows: the inner tube 421 is used for the gas wall-mounted boiler to discharge the waste flue gas after combustion to the outside, the outer tube 420 can protect the inner tube 421, and at the same time, the gap between the inner tube 421 and the outer tube 420 allows the outside air to enter the condensation chamber 40 to cool the flue gas discharged from the condensation element 41 to the inner tube 421.

[0047] In another embodiment provided by the present invention, a connecting pipe 400 is provided on the side of the condensing chamber 40, and the condensing chamber 40 is connected with the combustion chamber 2 through the connecting pipe 400. A condensing pipe 401 is provided at the bottom of the condensing chamber 40, and the condensing chamber 40 is not connected with the inside of the condensing member 41;

[0048] The specific implementation method is as follows: air with low outside temperature can enter the condensation chamber 40, and cool the flue gas therein through the condensation element 41, ensuring that the temperature of the high-temperature flue gas is low when it is discharged to the outside. The condensed water generated during condensation flows out through the condensation pipe 401. At the same time, the outside air flows to the combustion chamber 2 through the connecting pipe 400 after condensation, so that the outside air is mixed with the premixed air in the combustion chamber 2 to ensure full combustion of the gas.

[0049] In another embodiment provided by the present invention, a cleaning component 5 is further included, wherein the cleaning component 5 is disposed on the inner tube 421 and is located inside the outer tube 420;

[0050] The specific implementation is as follows: the cleaning component 5 is arranged on the inner tube 421 so that when the inner tube 421 discharges the waste flue gas to the outside, it drives the cleaning component 5 to rotate, so that the cleaning component 5 can scrape and clean the smoke dust generated by the smoke on the inner wall of the inner tube 421 in a passive manner.

[0051] In another embodiment provided by the present invention, the cleaning assembly 5 includes a rotating sleeve 50, a fan blade 51, a mounting shaft 52, a connecting rod 53 and a spiral scraper 54. A plurality of rotating sleeves 50 are rotatably arranged on the inner tube 421, and each of the rotating sleeves is provided with the fan blade 51. The fan blades 51 are connected to each other through a mounting shaft 52. A plurality of connecting rods 53 are evenly arranged on the outer side of the mounting shaft 52 along its axial direction, and a plurality of spiral scrapers 54 are arranged on the outer side of the connecting rod 53.

[0052] The specific implementation is as follows: the flue gas passing through the condensing element 41 is discharged to the outside through the inner tube 421. At this time, the discharged flue gas can drive the multiple fan blades 51 arranged in the inner tube 421 to rotate, so that the fan blades 51 drive the installation shaft 52 to rotate, so that the installation shaft 52 drives the spiral scraper 54 to rotate through the connecting rod 53, so that the spiral scraper 54 will rotate and scrape the inner wall of the inner tube 421, so as to remove the smoke formed by the flue gas in the inner tube 421, ensure the cleanliness of the inner tube 421, and extend the service life of the gas wall-mounted boiler.

[0053] In another embodiment provided by the present invention, a blade 500 having a spiral direction opposite to that of the fan blade 51 is disposed on the outer side of the rotating sleeve 50;

[0054] The specific implementation is as follows: while the fan blades 51 are rotating, the fan blades 51 can drive the rotating sleeve 50 to rotate, so that the rotating sleeve 50 drives the blades 500 arranged on its outside to rotate, so that the blades 500 suck the outside air from the outside into the condensation chamber 40, so that the air with low outside temperature cools the flue gas inside through the condensation element 41, ensuring that the temperature of the high-temperature flue gas is low when it is discharged to the outside; at the same time, the external water terminal is closed, at this time the fan 33, the burner 31 are stopped, the water flow is stopped, and the fan blades 51 and the blades 500 are still rotating due to inertia, so that the outside air enters the combustion chamber 2 of the gas wall-mounted boiler while the flue gas in the gas wall-mounted boiler continues to be discharged, avoiding safety hazards caused by residual gas.

[0055] In another embodiment provided by the present invention, a filter assembly 6 is further included, wherein the filter assembly 6 is arranged at the joint of the water outlet pipe 11, and the filter assembly 6 is inside the housing 1;

[0056] The specific implementation is as follows: the heated water flow may contain impurities and scale, and the water flow will be unclean when used at the external water outlet terminal. Therefore, a filter component 6 is provided at the joint of the water outlet pipe 11 so that the filter component 6 can filter and clean the impurities and scale contained in the heated water flow to ensure that the water flow used by the external water outlet terminal is clean.

[0057] In another embodiment provided by the present invention, the filter assembly 6 includes a filter 60, a filter screen 61 is arranged on the upper side of the filter 60, the filter screen 61 is in a concave disc shape and forms a receiving space on the upper part, a filter cotton 62 is arranged in the receiving space, a replacement filter element 63 is arranged in the middle of the inner side of the filter 60, and an irregular pit is arranged on the outer side of the replacement filter element 63;

[0058] The specific implementation is as follows: the heated water flow is filtered through a filter screen 61 and a filter cotton 62 arranged on the filter screen 61 to prevent scale in the water flow from flowing to the external water outlet terminal, thereby ensuring that the water flow used by the external water outlet terminal is clean. At the same time, the fine scale in the water flow flowing through the filter 60 can be adsorbed by replacing the filter element 63. The irregular pits on the surface of the replacement filter element 63 are conducive to the adsorption of scale. After the filter cotton 62 filters impurities for a period of time and the replacement filter element 63 adsorbs scale for a period of time, the filtering effect of the filter 60 is ensured by replacing the filter cotton 62 and cleaning or replacing the filter element 63, so that the external water outlet terminal can always use clean water.

[0059] A method for using a gas wall-mounted boiler, the method for using a gas wall-mounted boiler is applicable to a gas wall-mounted boiler, comprising the following steps:

[0060] Step 1: Install the gas wall-mounted boiler, connect the external water pipe with the water inlet pipe 10, connect the water outlet pipe 11 with the external water outlet terminal, and connect the gas pipe 13 with the external gas pipe through a pipeline. After the water inlet pipe 10, the water outlet pipe 11 and the gas pipe 13 are connected with the outside, power on the gas wall-mounted boiler and start it;

[0061] Step 2: After the gas wall-mounted boiler is powered on, when hot water is needed, the external water outlet terminal is opened, and the water flows through the water inlet pipe 10 to the water channel 12, and flows through the water outlet pipe 11 to the external water outlet terminal. When the water flows through the water inlet pipe 10 and the water channel 12, the gas wall-mounted boiler can heat the water flowing through: After the gas wall-mounted boiler is powered on, when the water flows through the water inlet pipe 10 to the water channel 12, the gas and air are premixed through the premixer 30, and the premixed gas is transported to the burner 31 through the fan 33, so that the burner 31 can heat the premixed gas and air sprayed after power is turned on. The gas is ignited, and the flue gas after combustion is pushed by the premixed gas continuously delivered by the fan 33 to flow to the main heat exchanger 32, so that the flue gas after combustion flows through the heat exchange tube 321, so that the heat exchange tube 321 transfers the heat to the water channel 12 wound on the heat exchange plate 320 through the heat exchange plate 320, so that the flue gas with high temperature after combustion heats the water flow in the water channel 12 through the heat exchange plate 320 and the heat exchange tube 321, and the heated water flows from the water channel 12 to the water outlet pipe 11 and flows out hot water from the external water outlet terminal; the water heated by the main heat exchanger 32 flows to the water outlet pipe 11 When the water flows through the filter assembly 6, the filter assembly 6 filters the heated water through the filter screen 61 and the filter cotton 62 arranged on the filter screen 61 to prevent scale in the water from flowing to the external water outlet terminal, ensuring that the used water is clean. At the same time, the fine scale in the water flowing through the filter 60 can be adsorbed by the replacement filter element 63. The irregular pits on the surface of the replacement filter element 63 are used to adsorb scale. After the filter cotton 62 filters impurities for a period of time and the replacement filter element 63 adsorbs scale for a period of time, the filter cotton 62 can be replaced and the replacement filter element 63 can be cleaned or replaced. Ensure the filtering effect of the filter 60; in addition, when the water flow is heated in the water channel 12 at the main heat exchanger 32, the flue gas passing through the main heat exchanger 32 needs to be discharged to the outside, and although the heat of the flue gas at this time has decreased, its temperature is still much higher than the water flow just entering the water channel 12. In this way, the flue gas after passing through the main heat exchanger 32 flows into the condensing element 41, so that the condensing element 41 preheats the water flow in the water channel 12 wound around its outer side, so that the temperature of the water flow before passing through the main heat exchanger 32 is further increased, thereby accelerating the efficiency of the gas wall-mounted boiler in raising the water temperature and saving energy;The flue gas passing through the condensing element 41 is discharged to the outside through the inner tube 421. At this time, the discharged flue gas can drive the multiple fan blades 51 arranged in the inner tube 421 to rotate, so that the fan blades 51 drive the installation shaft 52 to rotate, so that the installation shaft 52 drives the spiral scraper 54 to rotate through the connecting rod 53, so that the spiral scraper 54 rotates and scrapes the inner wall of the inner tube 421 to remove the smoke formed by the flue gas in the inner tube 421. When the fan blades 51 rotate, the fan blades 51 can drive the rotating sleeve 50 to rotate, so that the rotating sleeve 50 drives the blades 500 arranged on the outside thereof to rotate, so that the blades 500 suck the outside air from the outside to the condensing chamber. 40, so that the cold air from the outside cools down the flue gas inside through the condensing element 41, ensuring that the temperature of the high-temperature flue gas is low when it is discharged to the outside, and the condensed water generated during condensation flows out through the condensing pipe 401, that is, the inner pipe 421 is used for the gas wall-mounted boiler to discharge the waste flue gas after combustion to the outside, and the outer pipe 420 can protect the inner pipe 421, and at the same time, the gap between the inner pipe 421 and the outer pipe 420 allows the outside air to enter the condensing chamber 40 to cool down the flue gas discharged from the condensing element 41 to the inner pipe 421, and at the same time, the blades 500 continuously absorb the outside air, so that the outside air flows to the combustion chamber 2 through the connecting pipe 400 after condensation, so that the outside air is mixed with the premixed air in the combustion chamber 2 to ensure that the gas is fully burned;

[0062] Step 3: The external water outlet terminal is closed, at which time the fan 33, the burner 31 and the water flow stop. At this time, the fan blades 51 and the blades 500 still rotate due to inertia, so that the outside air enters the combustion chamber 2 of the gas wall-mounted boiler while the smoke in the gas wall-mounted boiler continues to be discharged to avoid safety hazards caused by residual gas.

[0063] The above description is only by way of illustration of certain exemplary embodiments of the present invention. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A gas wall-mounted boiler, comprising a shell (1), a combustion chamber (2) being arranged in the middle of the shell (1), a combustion assembly (3) being arranged in the combustion chamber (2), characterized in that: The gas wall-mounted boiler also includes: A shell (1), the shell (1) comprising a water inlet pipe (10), a water outlet pipe (11), a water channel (12) and a gas pipe (13); the water inlet pipe (10) and the water outlet pipe (11) are arranged inside the shell (1), and joints between the water inlet pipe (10) and the water outlet pipe (11) and the outside are arranged on both sides of the lower end of the shell (1); the joint between the gas pipe (13) and the outside is arranged between the water inlet pipe (10) and the water outlet pipe (11); the water inlet pipe (10) and the water outlet pipe (11) are connected via the water channel (12); A combustion assembly (3), the combustion assembly (3) comprising a premixer (30), a burner (31), a main heat exchanger (32) and a fan (33), the premixer (30) being connected to the gas pipe (13) and the air pipe, the premixer (30) being in communication with the burner (31), the main heat exchanger (32) being arranged above the burner (31), the water channel (12) being wound around the outside of the main heat exchanger (32), and the burner (31) being in communication with the fan (33); A condensation component (4), the condensation component (4) comprising a condensation chamber (40), a condensation element (41) and a smoke exhaust pipe (42), the condensation chamber (40) being arranged on the upper side of the interior of the shell (1), the condensation element (41) being communicated with the combustion chamber (2), the condensation element (41) being arranged in the condensation chamber (40), the water channel (12) winding through the condensation chamber (40), and the condensation element (41) being arranged on the outside of the water channel (12), the smoke exhaust pipe (42) being arranged on one side of the condensation chamber (40), and the smoke exhaust pipe (42) being communicated with the interior of the condensation chamber (40).

2. A gas wall-mounted boiler according to claim 1, characterized in that: The main heat exchanger (32) comprises heat exchange fins (320) and heat exchange tubes (321); the heat exchange fins (320) are evenly arranged, a plurality of heat exchange tubes (321) are arranged inside the heat exchange fins (320), and the water channel (12) is spirally wound around the outer side of the heat exchange fins (320).

3. A gas wall-mounted boiler according to claim 1, characterized in that: The smoke exhaust pipe (42) comprises an outer pipe (420) and an inner pipe (421), wherein the outer pipe (420) is sleeved on the outer side of the inner pipe (421), the outer pipe (420) is connected to the condensation chamber (40), and the inner pipe (421) is connected to the condensation element (41).

4. A gas wall-mounted boiler according to claim 3, characterized in that: A connecting pipe (400) is provided on the side of the condensation chamber (40), and the condensation chamber (40) is connected to the combustion chamber (2) through the connecting pipe (400). A condensation pipe (401) is provided at the bottom of the condensation chamber (40), and the condensation chamber (40) is not connected to the inside of the condensation element (41).

5. A gas wall-mounted boiler according to claim 3, characterized in that: It also comprises a cleaning component (5), wherein the cleaning component (5) is arranged on the inner tube (421), and the cleaning component (5) is located inside the outer tube (420).

6. A gas wall-mounted boiler according to claim 5, characterized in that: The cleaning assembly (5) comprises a rotating sleeve (50), a fan blade (51), a mounting shaft (52), a connecting rod (53) and a spiral scraper (54); a plurality of rotating sleeves (50) are rotatably arranged on the inner tube (421); each of the rotating sleeves is provided with a fan blade (51); the fan blades (51) are connected to each other via a mounting shaft (52); a plurality of connecting rods (53) are evenly arranged on the outer side of the mounting shaft (52) along its axial direction; and a plurality of spiral scrapers (54) are arranged on the outer side of the connecting rod (53).

7. A gas wall-mounted boiler according to claim 6, characterized in that: The outer side of the rotating sleeve (50) is provided with a blade (500) whose spiral direction is opposite to that of the fan blade (51).

8. The gas wall-mounted boiler according to claim 1, characterized in that: It also comprises a filter assembly (6), wherein the filter assembly (6) is arranged at the joint of the water outlet pipe (11), and the filter assembly (6) is located inside the housing (1).

9. A gas wall-mounted boiler according to claim 8, characterized in that: The filter assembly (6) comprises a filter (60), a filter screen (61) is arranged on the upper side of the interior of the filter (60), the filter screen (61) is in the shape of a concave disk and forms a receiving space on the upper part, filter cotton (62) is arranged in the receiving space, a replacement filter element (63) is arranged in the middle part of the inner side of the filter (60), and an irregular pit is arranged on the outer side of the replacement filter element (63).

10. A method for using a gas wall-mounted boiler, characterized in that: The method for using a gas wall-mounted boiler is applicable to a gas wall-mounted boiler according to any one of claims 1 to 9, comprising the following steps: The first step is to install a gas wall-mounted boiler, connect an external water pipe to the water inlet pipe (10), connect the water outlet pipe (11) to an external water outlet terminal, and connect the gas pipe (13) to an external gas pipe through a pipeline. After the water inlet pipe (10), the water outlet pipe (11) and the gas pipe (13) are connected to the outside, power on the gas wall-mounted boiler and start it. Step 2: After the gas wall-mounted boiler is powered on, when hot water is needed, the external water outlet terminal is opened, and water flows through the water inlet pipe (10) to the water channel (12), and flows through the water outlet pipe (11) to the external water outlet terminal. When the water flows through the water inlet pipe (10) and the water channel (12), the gas wall-mounted boiler can heat the water flowing through it: After the gas wall-mounted boiler is powered on, when the water flows through the water inlet pipe (10) to the water channel (12), the gas and air are premixed through the premixer (30), and the premixed gas is transported to the burner (31) through the fan (33), so that the burner (31) sprays the premixed gas and air at a certain temperature after power is turned on. The smoke after combustion is pushed by the premixed gas continuously delivered by the fan (33) to flow toward the main heat exchanger (32), so that the smoke after combustion flows through the heat exchange tube (321), so that the heat exchange tube (321) transfers heat to the water channel (12) wound around the heat exchange plate (320) through the heat exchange plate (320), so that the smoke after combustion with high temperature passes through the heat exchange plate (320) and the heat exchange tube (321) to heat the water flow in the water channel (12), and the heated water flows from the water channel (12) to the water outlet pipe (11) and flows out hot water from the external water outlet terminal; the water flow heated by the main heat exchanger (32) flows to the water outlet pipe (11) 11), the water will flow through the filter assembly (6), and at this time, the filter assembly (6) filters the heated water through the filter screen (61) and the filter cotton (62) arranged on the filter screen (61), so as to prevent scale in the water from flowing to the external water outlet terminal, thereby ensuring that the used water is clean. At the same time, the fine scale in the water flowing through the filter (60) can be adsorbed by the replacement filter element (63), and the irregular pits on the surface of the replacement filter element (63) are used to adsorb scale. After the filter cotton (62) filters impurities for a period of time and the replacement filter element (63) adsorbs scale for a period of time, the filter cotton (62) is replaced and the replacement filter element (63) is cleaned or replaced. 63) ensures the filtering effect of the filter (60); in addition, when the water flow is heated in the water channel (12) at the main heat exchanger (32), the flue gas passing through the main heat exchanger (32) needs to be discharged to the outside, and although the heat of the flue gas at this time has decreased, its temperature is still much higher than the water flow just entering the water channel (12). In this way, the flue gas after passing through the main heat exchanger (32) flows into the condensing element (41), so that the condensing element (41) preheats the water flow in the water channel (12) wrapped around its outer side, so that the temperature of the water flow before passing through the main heat exchanger (32) is further increased, thereby accelerating the efficiency of the gas wall-mounted boiler in raising the water temperature and saving energy;The smoke passing through the condensing element (41) is discharged to the outside through the inner tube (421). At this time, the discharged smoke can drive the plurality of fan blades (51) arranged in the inner tube (421) to rotate, so that the fan blades (51) drive the installation shaft (52) to rotate, so that the installation shaft (52) drives the spiral scraper (54) to rotate through the connecting rod (53), so that the spiral scraper (54) rotates and scrapes the inner wall of the inner tube (421) to remove smoke dust formed by the smoke in the inner tube (421). When the fan blades (51) rotate, the fan blades (51) can drive the rotating sleeve (50) to rotate. The rotating sleeve (50) drives the blades (500) arranged on the outside thereof to rotate, so that the blades (500) draw outside air from the outside into the condensation chamber (40), so that the air with low outside temperature cools the flue gas inside through the condensation element (41), ensuring that the temperature of the high-temperature flue gas is low when it is discharged to the outside, and the condensed water generated during condensation flows out through the condensation pipe (401). At the same time, the blades (500) continue to absorb outside air, so that the outside air flows to the combustion chamber (2) through the connecting pipe (400) after condensation, so that the outside air is mixed with the premixed air in the combustion chamber (2), ensuring that the gas is fully burned; Step 3: The external water outlet terminal is closed, at which time the fan (33), the burner (31) are stopped, the water flow is stopped, and the fan blade (51) and the blade (500) continue to rotate due to inertia, so that external air enters the combustion chamber (2) of the gas wall-mounted boiler while the smoke in the gas wall-mounted boiler continues to be discharged, thereby avoiding safety hazards caused by residual gas.

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