Condensation type gas-fired boiler

Abstract

The invention particularly relates to a condensation type gas-fired boiler which comprises a boiler body, a box body is arranged on the right side of the boiler body, a separation bin and a condensation bin are arranged in the box body, a smoke exhaust pipeline is arranged between the boiler body and the separation bin, the boiler body conveys smoke dust into the separation bin through the smoke exhaust pipeline, and the smoke dust is separated from gas through the separation bin. The condensation bin is located on the right side of the separation bin, gas obtained after smoke and dust separation enters the condensation bin to be cooled, a smoke outlet pipeline is arranged on the box body on the right side of the condensation bin, and an exhaust fan is arranged on the smoke outlet pipeline; according to the dust removal device for the boiler, dust removal and separation can be conducted on smoke discharged by the boiler body, meanwhile, water can be sprayed to a smoke discharging pipeline to clean away the smoke attached to the pipeline, the precipitated smoke can be cleaned away, meanwhile, filtering of the smoke is achieved, and cleaning and repeated utilization of filtering cotton can be achieved; the separation bin and the condensation bin are separated, so that the low heat exchange efficiency between the water guide pipe and the gas caused by the fact that a large amount of smoke dust is adhered to the water guide pipe can be avoided; and an atomizing nozzle is arranged in the condensation bin, so that the gas can be quickly cooled.

Description

Technical Field

[0001] The present invention relates to the technical field of gas hot water boilers, and in particular to a condensing gas hot water boiler. Background Art

[0002] As a highly efficient heat conversion device, gas boilers are widely used in industrial and civil fields. However, the exhaust method of traditional gas boilers is relatively simple, and the exhaust gas containing smoke and water vapor is only discharged directly through the exhaust pipe. Due to the lack of an effective smoke dust separation mechanism, the smoke can easily adhere to the inner wall of the exhaust pipe, causing pipe blockage and reduced heat transfer efficiency. In addition, the direct discharge of untreated smoke will pollute the environment and increase the concentration of smoke (particulate matter) in the air, which does not meet the increasingly stringent environmental protection requirements.

[0003] In order to improve the thermal efficiency of gas boilers, condensing gas boilers have been widely used, which improve the utilization rate of thermal energy by recovering the sensible heat and latent heat in the flue gas. However, during the condensation process, the smoke and impurities in the exhaust gas will be deposited in the condensation bin and the water pipe, resulting in a decrease in thermal conductivity and increased difficulty in cleaning. In the prior art, although some condensing gas boilers are equipped with condensers or simple precipitation devices, they fail to effectively solve the problems of smoke adhesion and accumulation in the exhaust pipe. This not only increases the equipment maintenance cost, but also seriously affects the long-term operating performance and environmental protection effect of the boiler.

[0004] Most of the smoke treatment devices on the market currently have a single function, mainly focusing on simple filtering or precipitation functions, and lack a comprehensive smoke separation and cleaning solution. For example, disposable filter materials are difficult to reuse during the treatment process, which increases the cost of use, and the smoke precipitation device is not designed reasonably and cannot effectively remove the sediment. In addition, in the prior art, the condensation chamber and the smoke separation chamber are usually not separated, causing the smoke to directly enter the condensation chamber and adhere to the water pipe, further reducing the heat exchange efficiency.

[0005] For example, a condensing gas-fired thermal boiler with patent number CN202010774422.X comprises a boiler body, a separation chamber and a condensing water tank; the boiler body is installed on the right side of the separation chamber; a rubber partition is installed in the middle of the separation chamber, and a sponge partition is embedded on the right side of the rubber partition; a sedimentation tank is provided in the sponge partition, and the cross-section of the sedimentation tank is arc-shaped, and the sedimentation tank is spirally designed from the front end to the rear, and the cross-sectional radius of the sedimentation tank shows a decreasing trend; an air guide port is provided above the rear end of the sedimentation tank; a condensing water tank is fixedly connected to the left side of the separation chamber, and an air inlet is provided at the upper end of the right side wall of the condensing water tank, and the air inlet connects the condensing water tank and the inside of the separation chamber; an air outlet is provided on the upper surface of the condensing water tank; the present invention can realize the efficient removal of smoke dust in the flue gas, so that the discharged flue gas meets the emission requirements of low dust concentration, and the device structure is simple and the investment cost is low. Although the above structure can separate the smoke and dust, it cannot achieve heat exchange recovery of the heat in the flue gas, and cannot clean the smoke and dust accumulated in the exhaust pipe. Long-term use will cause pipe blockage. In addition, the sponge partition cannot be quickly cleaned or replaced, resulting in long downtime and affecting production.

[0006] For this purpose, we provide a condensing gas boiler that integrates smoke separation, pipeline cleaning, filtration and high-efficiency condensation. Summary of the invention

[0007] The present invention aims to overcome the deficiencies in the prior art and provide a condensing gas boiler.

[0008] The objective of the present invention is achieved as follows: a condensing gas boiler comprises a boiler body, a box body is arranged on the right side of the boiler body, a separation chamber and a condensation chamber are arranged in the box body, a smoke exhaust pipe is arranged between the boiler body and the separation chamber, the boiler body transports smoke to the separation chamber through the smoke exhaust pipe, the separation chamber separates the smoke from the gas, the condensation chamber is located on the right side of the separation chamber, the gas after the smoke is separated enters the condensation chamber for cooling, a smoke outlet pipe is arranged on the box body on the right side of the condensation chamber, and an exhaust fan is arranged on the smoke outlet pipe.

[0009] Furthermore, the smoke exhaust pipe includes a smoke exhaust pipe 1, which is located on the upper part of the boiler body, a smoke exhaust pipe 2 is arranged at the upper end of the smoke exhaust pipe 1, the smoke exhaust pipe 1 is connected to the smoke exhaust pipe 2, a smoke exhaust pipe 3 is arranged at the outer end of the smoke exhaust pipe 2, and the lower end of the smoke exhaust pipe 3 is connected to the separation chamber.

[0010] Furthermore, a connecting pipe is provided between the smoke exhaust duct 1 and the smoke exhaust duct 2, and the smoke exhaust duct 1 and the smoke exhaust duct 2 are connected through the connecting pipe.

[0011] Furthermore, a step ring is provided at the lower inner portion of the connecting pipe, an annular groove is provided on the upper surface of the step ring, and the diameter of the inner side surface of the upper portion of the connecting pipe is equal to the diameter of the inner side surface of the second smoke exhaust pipe.

[0012] Furthermore, a smoke exhaust pipe four is connected to the side of the connecting pipe, the bottom of the inner side of the smoke exhaust pipe four is connected to the bottom of the annular groove, and the lower end of the smoke exhaust pipe four is connected to the lower part of the smoke exhaust pipe three.

[0013] Furthermore, the second smoke exhaust pipe is a U-shaped structure. The second smoke exhaust pipe and the third smoke exhaust pipe are evenly provided with a plurality of first nozzles and second nozzles respectively.

[0014] When the present invention is in use, the smoke generated in the boiler body is discharged through the smoke exhaust duct one, and the smoke in the smoke exhaust duct one enters the separation chamber through the smoke exhaust duct two and the smoke exhaust duct three for smoke and dust separation. Since the smoke exhaust duct two is a U-shaped structure, the smoke and dust settled on the inner side surface of the smoke exhaust duct two will slide along the inner side surface of the smoke exhaust duct two to the left and right ends of the smoke exhaust duct two, and the smoke and dust slides through the left side of the smoke exhaust duct two to the annular groove in the connecting pipe, and the smoke and dust enters the smoke exhaust duct four through the annular groove (the upper end of the smoke exhaust duct four is connected to the bottom of the annular groove so that the smoke and dust in the annular groove can enter the smoke exhaust duct four), enters the smoke exhaust duct three through the smoke exhaust duct four, and then enters the separation chamber. The smoke and dust on the right side of the smoke exhaust duct two slides down to the smoke exhaust duct three and enters the separation chamber. The smoke and dust can be flushed by spraying water into the smoke exhaust duct two and the smoke exhaust duct four as needed, that is, water is supplied to the nozzles one and two from the outside, and the nozzles one and two spray water onto the inner sides of the smoke exhaust duct two and the smoke exhaust duct four respectively. The water sprayed in the smoke exhaust duct two flows along the left and right inner sides into the annular groove and the smoke exhaust duct three respectively. The water in the annular groove carries the smoke and dust into the smoke exhaust duct four, avoiding a large amount of water entering the smoke exhaust duct one and causing a large amount of water to enter the boiler body. The water in the smoke exhaust duct four flows into the smoke exhaust duct three and then into the separation chamber. Spraying water into the pipe through the nozzles one and two is used when the inner wall needs to be cleaned, which not only has the function of clearing the smoke and dust on the inner wall, but also has the function of reducing dust and cooling the smoke and dust.

[0015] When the smoke enters the separation bin, since the space in the separation bin is much larger than the space in the smoke exhaust duct, the fluidity of the smoke after entering the separation bin is significantly reduced, and the smoke will slowly settle in the separation bin. At the same time, guide plate 1 and guide plate 2 are provided to increase the flow distance of the smoke in the separation bin, which is beneficial to the sedimentation of the smoke. When the smoke settles to the bottom of the separation bin, since a guide plate is provided at the bottom of the separation bin, and the guide plate is a structure inclined toward the front and lower side, the smoke will slide into the sedimentation bin. The cover plate 1 can be opened regularly as needed to clean the smoke and liquid accumulated in the sedimentation bin; or a large amount of water can be injected into the sedimentation bin as needed, and the height of the water can cover the upper side of the connection between the front side of the box and the sedimentation bin to prevent smoke gas from entering the sedimentation bin from the connection between the sedimentation bin and the separation bin.

[0016] The precipitated gas is then filtered through the filter cotton to filter the gas containing a small amount of smoke and dust. The filtered smoke and dust enter the condensation chamber through the vents. When the filter cotton needs to be cleaned (when there is a lot of smoke and dust adhering to the filter cotton, its filtering performance will be hindered), air is supplied to the intake pipe, and the gas is blown to the corresponding transversely distributed vents through the strip grooves on the moving plate. The gas pressure in the strip grooves is much greater than the gas pressure in the separation chamber. Therefore, the high-speed airflow blows through the vents to the filter cotton at the corresponding position, blowing the filter cotton left and right. The smoke and dust adhering to the sides are blown off to the bottom of the separation chamber; the lifting mechanism drives the moving plate to move up and down, and the vents distributed up and down on the lifting plate are blown in reverse one by one to blow away the smoke and dust on the filter cotton; at the same time, when the filter cotton needs to be cleaned in depth, the nozzle supplies water to the filter cotton in three directions to flush the filter cotton and flush away a large amount of smoke and dust adhering to the filter cotton. The vent holes are provided with a structure tilted to the lower left, so when flushing the filter cotton, the water flow will not enter the condensation chamber through the vent holes. In this way, the filter cotton can be cleaned, and a lifting plate that can move up and down is provided so that it can be separated from the box body, and the filter cotton can be disassembled and replaced, which is simple and convenient to use.

[0017] When the gas enters the condensation chamber through the filter cotton, the gas separated from the smoke and dust enters the condensation chamber, which can greatly reduce the smoke and dust adhesion to the duct inside the condensation chamber. The smoke and dust adhesion on the duct will hinder the heat transfer efficiency between the duct and the gas. The filtered gas will flow up and down in the condensation chamber under the action of the guide plate three and the guide plate four, and the duct will circle on the flow route of the gas in the condensation chamber, which can increase the contact time between the duct and the gas and achieve cooling of the gas.

[0018] In addition, an atomizing nozzle is provided to achieve preliminary rapid spray cooling of the gas entering the condensation chamber. The water after spray cooling enters the cooling chamber on the left side of the bottom of the condensation chamber. The lower end of the water pipe is located in the cooling chamber. The water is pumped into the water pipe by a water pump. The water in the water pipe swirls in the condensation chamber and exchanges heat with the gas again.

[0019] Atomizing nozzle 2 is provided to cool the gas again when the gas is about to be discharged from the condensation chamber. Cold water is supplied through atomizing nozzle 2, and atomizing nozzle 2 sprays cold water outward to cool the gas again and condense the gas. At the same time, the sprayed water enters cooling chamber 2, and the water in cooling chamber 2 is supplied to nozzle 3 and atomizing nozzle 1 through a water supply pipe and a water pump. The water in the condensation chamber is then discharged through an exhaust fan and a smoke outlet pipe. By supplying and utilizing the above-mentioned water flow multiple times, multi-level condensation and cooling of the gas can be achieved while maximizing heat exchange with the water, so as to facilitate subsequent heat energy recovery. By opening cover plate 2, the interior of cooling chamber 1 and cooling chamber 2 can be cleaned.

[0020] Beneficial effects: The device can separate and reduce the smoke discharged from the boiler body, and can spray water on the smoke exhaust pipe to clean the smoke adhering to the pipe, clean the precipitated smoke, filter the smoke, and clean and reuse the filter cotton. The separation chamber and the condensation chamber are separated to avoid a large amount of smoke adhering to the water pipe, resulting in low heat exchange efficiency between the water pipe and the gas; an atomizing nozzle is arranged in the condensation chamber to quickly cool the gas. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the structure of the invention.

[0022] Figure 2 It is a schematic diagram of the upper structure of the invention.

[0023] Figure 3 It is a cross-sectional view of the local structure of the connecting pipe of the invention.

[0024] Figure 4 Schematic diagram of the local structure of the invention

[0025] Figure 5 It is a sectional view of the local structure of the box body of the invention.

[0026] Figure 6 It is a partial structural sectional view of the invention.

[0027] Figure 7 It is a partial structural schematic diagram of the invention.

[0028] Figure 8 It is a schematic diagram of the movable plate structure of the invention.

[0029] Description of reference numerals:

[0030] 1. Boiler body, 2. Exhaust pipe 1, 3. Connecting pipe, 4. Exhaust pipe 2, 5. Nozzle 1, 6. Nozzle 2, 7. Exhaust pipe 3, 8. Box, 9. Cover plate 1, 10. Cover plate 2, 11. Exhaust fan, 12. Smoke outlet pipe, 13. Exhaust pipe 4, 14. Annular groove, 15. Inlet pipe, 16. Nozzle 3, 17. Lifting plate, 18. Guide rod, 19. Lifting mechanism , 20. Atomizing nozzle 1, 21. Water guide pipe, 22. Water pump 1, 23. Atomizing nozzle 2, 24. Water supply pipe, 25. Water pump 2, 26. Sedimentation chamber, 27. Filter cotton, 28. Guide plate 1, 29. Guide plate 2, 30. Guide plate, 31. Vent, 32. Moving plate, 33. Guide plate 3, 34. Guide plate 4, 35. Partition, 36. Water guide pipe, 37. Cooling chamber 2. DETAILED DESCRIPTION

[0031] Embodiment 1, as Figure 1-8 As shown, the object of the present invention is achieved as follows: a condensing gas boiler includes a boiler body 1, a box body 8 is arranged on the right side of the boiler body 1, a separation chamber and a condensation chamber are arranged in the box body 8, a smoke exhaust pipe is arranged between the boiler body 1 and the separation chamber, the boiler body 1 transports smoke to the separation chamber through the smoke exhaust pipe, the separation chamber separates smoke from gas, the condensation chamber is located on the right side of the separation chamber, the gas after smoke separation enters the condensation chamber for cooling, a smoke outlet pipe 12 is arranged on the box body 8 on the right side of the condensation chamber, and an exhaust fan 11 is arranged on the smoke outlet pipe 12. The boiler body 1 is a prior art and no technical description is given.

[0032] The smoke exhaust pipe includes a smoke exhaust pipe 2, which is located on the upper part of the boiler body 1. A smoke exhaust pipe 2 4 is arranged at the upper end of the smoke exhaust pipe 2. The smoke exhaust pipe 2 is connected to the smoke exhaust pipe 2 4. A smoke exhaust pipe 3 7 is arranged at the outer end of the smoke exhaust pipe 24. The lower end of the smoke exhaust pipe 3 7 is connected to the separation chamber.

[0033] A connecting pipe 3 is provided between the smoke exhaust pipe 1 2 and the smoke exhaust pipe 2 4, and the smoke exhaust pipe 1 2 and the smoke exhaust pipe 2 4 are connected through the connecting pipe 3. A step ring is provided at the lower part of the connecting pipe 3, and an annular groove 14 is provided on the upper surface of the step ring. The diameter of the inner side surface of the upper part of the connecting pipe 3 is equal to the diameter of the inner side surface of the smoke exhaust pipe 2 4.

[0034] The side of the connecting pipe 3 is connected to a smoke exhaust pipe 4 13, the bottom of the inner side of the smoke exhaust pipe 4 13 is connected to the bottom of the annular groove 14, and the lower end of the smoke exhaust pipe 4 13 is connected to the lower part of the smoke exhaust pipe 3 7. The smoke exhaust pipe 2 4 is a U-shaped structure. A plurality of nozzles 1 5 and 2 6 are evenly arranged on the smoke exhaust pipe 2 4 and the smoke exhaust pipe 3 7.

[0035] A sedimentation bin 26 is provided at the front side of the lower part of the separation bin, and the sedimentation bin 26 is connected to the separation bin. A cover plate 9 is provided on the upper surface of the sedimentation bin 26, and a guide plate 30 is provided on the rear side of the bottom of the separation bin. The upper surface of the guide plate 30 is a slope inclined forward, and the front side of the guide plate 30 is the sedimentation bin 26.

[0036] Two guide plates 1 28 and 29 are arranged in the upper part of the separation chamber, and the guide plate 2 29 is located between the two guide plates 1 28. The upper end and the front and rear sides of the guide plate 1 28 are connected to the inner side of the separation chamber, and a certain gap is left between the upper part of the guide plate 29 and the inner side of the separation chamber, and the front and rear sides of the guide plate 2 29 are connected to the inner side of the separation chamber. The smoke exhaust pipe 3 7 is located on the left side of the separation chamber, and the lower end of the smoke exhaust pipe 3 7 is located on the left side of the guide plate 1 28 on the left side.

[0037] A filtering mechanism is arranged on the upper part of the box body 8 between the separation bin and the condensation bin and can be moved up and down. The boiler mechanism includes a lifting plate 17. The lifting plate 17 can be moved up and down and penetrates the upper surface of the box body 8. A filter groove is provided at the lower left part of the lifting plate 17. A filter cotton 27 is detachably arranged in the filter groove. A plurality of ventilation holes 31 are evenly arranged on the lifting plate 17 on the right side of the filter groove. The ventilation holes 31 are inclined downward to the left side. A plurality of nozzles 16 are evenly arranged on the left side of the lifting plate 17. The lower end of the nozzle 16 is located at the upper end of the filter cotton 27.

[0038] A movable plate 32 is provided on the right side of the lifting plate 17 to be movable up and down. A strip groove is provided on the left side of the movable plate 32. An air inlet pipe 15 is provided on the movable plate 32. The air inlet pipe 15 is connected to the strip groove. The air inlet pipe 15 is supplied with air from the outside. The air in the condensation chamber can be supplied to the air inlet pipe to realize the circulation of the air. The specific implementation method does not impose technical restrictions. The left side of the movable plate 32 fits with the right side of the lifting plate 17; guide rods 18 are fixedly provided at the front and rear ends of the upper surface of the movable plate 32, respectively. The guide rod 18 and the upper end of the air inlet pipe 15 can move up and down and penetrate the box body 8. A lifting mechanism 19 is provided on the upper surface of the box body 8. The lifting mechanism 19 drives the guide rod 18 to move up and down. The lifting mechanism 19 is a prior art and does not impose technical restrictions.

[0039] Two guide plates three 33 and guide plate four 34 are arranged in the condensing bin, and the guide plate four 34 is located between the two guide plates three 33, and the upper end and front and rear sides of the guide plate three 33 are respectively connected to the inner side of the condensing bin, and a certain gap is left between the upper part of the guide plate four 34 and the inner side of the condensing bin, and the front and rear sides of the guide plate four 34 are connected to the inner side of the condensing bin; a water guide pipe 3621 is arranged in the condensing bin, and the water guide pipe 3621 is spirally arranged in the gap between the guide plate three 33, the guide plate four 34 and the condensing bin, and the water in the water guide pipe 3621 flows from the right side to the left side, and a partition plate 35 is arranged at the bottom of the condensing bin, and the partition plate 35 divides the bottom of the condensing bin into cooling bin one and cooling bin two 37, and the lower end of the water guide pipe 3621 is located at the cooling bin one on the left side. Inside, the upper part of the water pipe 3621 passes through the box body 8, and a water pump 22 is arranged on the water pipe 3621. The water in the water pipe 3621 is pumped out by the water pump 22 to realize the flow of water; a plurality of atomizing nozzles 20 are arranged on the upper part of the box body 8 on the left side of the guide plate three 33 on the left side, and the atomizing nozzle 20 is located above the cooling bin one; an atomizing nozzle 23 is arranged on the box body 8 on the upper right side of the condensing bin, and a water supply pipe 24 is arranged on the right side of the condensing bin, and the lower end of the water supply pipe 24 is located in the cooling bin two 37, and the upper end of the water supply pipe 24 passes through the box body 8, and a water pump 25 is arranged on the water supply pipe 24, and the water supply pipe 24 supplies water to the atomizing nozzle 20 and the nozzle three 16, and supplies cold water to the atomizing nozzle 23 and the nozzles one 5 and two 6 through the outside. A water storage bin is provided at the lower front part of the condensing bin, the water storage bin is connected with the condensing bin, and a cover plate 10 is provided on the upper surface of the water storage bin.

[0040] When the present invention is in use, the smoke generated in the boiler body 1 is discharged through the smoke exhaust pipe 12, and the smoke in the smoke exhaust pipe 12 enters the separation chamber through the smoke exhaust pipe 24 and the smoke exhaust pipe 3 7 for smoke and dust separation. Since the smoke exhaust pipe 24 is a U-shaped structure, the smoke and dust precipitated on the inner side of the smoke exhaust pipe 24 will slide along the inner side of the smoke exhaust pipe 24 to the left and right ends of the smoke exhaust pipe 24, and the smoke and dust slides through the left side of the smoke exhaust pipe 24 to the annular groove 14 in the connecting pipe 3, and the smoke and dust enters the smoke exhaust pipe 4 13 through the annular groove 14 (the upper end of the smoke exhaust pipe 4 13 is connected to the bottom of the annular groove 14, so that the smoke and dust in the annular groove 14 can enter the smoke exhaust pipe 4 13), enters the smoke exhaust pipe 3 7 through the smoke exhaust pipe 4 13, and then enters the separation chamber. The smoke and dust on the right side of the smoke exhaust duct 2 4 slides down to the smoke exhaust duct 3 7 and enters the separation chamber. The smoke and dust can be flushed by spraying water into the smoke exhaust duct 2 4 and the smoke exhaust duct 4 13 as needed, that is, water is supplied to the nozzle 1 5 and the nozzle 2 6 from the outside, and the nozzle 1 5 and the nozzle 2 6 spray water onto the inner sides of the smoke exhaust duct 2 4 and the smoke exhaust duct 4 13 respectively. The water sprayed in the smoke exhaust duct 2 4 flows along the left and right inner sides into the annular groove and the smoke exhaust duct 3 7 respectively. The water in the annular groove 14 carries the smoke and dust into the smoke exhaust duct 4 13, avoiding a large amount of water entering the smoke exhaust duct 2 and causing a large amount of water to enter the boiler body 1. The water in the smoke exhaust duct 4 13 flows into the smoke exhaust duct 3 7 and then enters the separation chamber; spraying water into the pipe through the nozzle 1 5 and the nozzle 2 6 is used when the inner wall needs to be cleaned, which not only has the function of clearing the smoke and dust on the inner wall, but also has the function of reducing dust and cooling the smoke and dust.

[0041] When the smoke enters the separation bin, since the space in the separation bin is much larger than the space in the smoke exhaust duct, the fluidity of the smoke after entering the separation bin is significantly reduced, and the smoke will slowly settle in the separation bin. At the same time, guide plates 1 28 and 29 are provided to increase the flow distance of the smoke in the separation bin, which is beneficial to the sedimentation of the smoke. When the smoke settles to the bottom of the separation bin, since a guide plate 30 is provided at the bottom of the separation bin, and the guide plate 30 is a structure inclined toward the front and lower side, the smoke will slide into the sedimentation bin 26. The cover plate 1 9 can be opened regularly as needed to clean the smoke and liquid accumulated in the sedimentation bin 26; or a large amount of water can be injected into the sedimentation bin 26 as needed, and the height of the water shall be above the upper side of the connection between the front side of the box body 8 and the sedimentation bin 26 to prevent smoke gas from entering the sedimentation bin 26 from the connection between the sedimentation bin 26 and the separation bin.

[0042] The precipitated gas is then filtered through the filter cotton 27, and the gas containing a small amount of smoke and dust is filtered. The filtered smoke and dust enter the condensation chamber through the vent hole 31. When the filter cotton 27 needs to be cleaned (when there is a lot of smoke and dust adhering to the filter cotton 27, its filtering performance will be hindered), the air is supplied to the air inlet pipe 15, and the gas is blown to the corresponding transversely distributed vent holes 31 through the strip grooves on the movable plate 32. The gas pressure in the strip groove is much greater than the gas pressure in the separation chamber. Therefore, the high-speed airflow passes through the vent hole 31 and blows to the filter cotton 27 at the corresponding position, and the left side of the filter cotton 27 is adhered to the filter cotton 27. The smoke and dust are blown down to the bottom of the separation bin; the lifting mechanism 19 drives the moving plate 32 to move up and down, and the vents 31 distributed up and down on the lifting plate 17 are blown in reverse one by one to blow away the smoke and dust on the filter cotton 27; at the same time, when the filter cotton 27 needs to be cleaned in depth, the nozzle 3 16 is used to supply water to the filter cotton 27 to flush the filter cotton 27 and flush away a large amount of smoke and dust adhering to the filter cotton 27. The vents 31 are provided with a structure inclined to the lower left, so when flushing the filter cotton 27, the water flow will not enter the condensation bin through the vents 31. In this way, the filter cotton 27 is cleaned, and a lifting plate 17 that can move up and down is provided, so that it can be separated from the box body 8, and the filter cotton 27 can be disassembled and replaced, which is simple and convenient to use.

[0043] When the gas enters the condensation chamber after passing through the filter cotton 27, the gas separated from the smoke and dust can greatly reduce the smoke and dust adhesion to the duct inside the condensation chamber. The smoke and dust adhesion on the duct will hinder the heat transfer efficiency between the duct and the gas. The filtered gas will flow up and down in the condensation chamber under the action of the guide plate three 33 and the guide plate four 34, and the duct will circle on the flow route of the gas in the condensation chamber, which can increase the contact time between the duct and the gas and achieve cooling of the gas.

[0044] In addition, an atomizing nozzle 20 is provided to achieve preliminary rapid spray cooling of the gas entering the condensation bin. The water after spray cooling enters the cooling bin on the left side of the bottom of the condensation bin. The lower end of the water pipe 3621 is located in the cooling bin. The water is pumped into the water pipe 3621 by a water pump 22. The water in the water pipe 3621 swirls in the condensation bin and exchanges heat with the gas again.

[0045] A second atomizing nozzle 23 is provided to cool the gas again when the gas is about to be discharged from the condensation chamber. Cold water is supplied through the second atomizing nozzle 23, and the second atomizing nozzle 23 sprays cold water outward to cool the gas again and condense the gas. At the same time, the sprayed water enters the second cooling chamber 37, and the water in the second cooling chamber 37 is supplied to the nozzle three 16 and the atomizing nozzle one 20 through the water supply pipe 24 and the water pump. The water in the condensation chamber is then discharged through the exhaust fan 11 and the smoke outlet pipe 12. Through the multiple supply and utilization of the above-mentioned water flow, multi-level condensation and cooling of the gas can be achieved, and heat exchange of the water can be carried out to the greatest extent, so as to realize the subsequent heat energy recovery and utilization. By opening the cover plate 2 10, the inside of the cooling chamber 1 and the cooling chamber 2 37 can be cleaned.

[0046] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" 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, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A condensing gas boiler, comprising a boiler body, characterized in that: A box is provided on the right side of the boiler body, and a separation chamber and a condensation chamber are provided in the box. A smoke exhaust pipe is provided between the boiler body and the separation chamber. The boiler body transports smoke to the separation chamber through the smoke exhaust pipe, and the separation chamber separates the smoke from the gas. The condensation chamber is located on the right side of the separation chamber, and the gas after the smoke separation enters the condensation chamber for cooling. A smoke outlet pipe is provided on the box on the right side of the condensation chamber, and an exhaust fan is provided on the smoke outlet pipe.

2. A condensing gas boiler according to claim 1, characterized in that: The smoke exhaust pipe includes a smoke exhaust pipe 1, which is located on the upper part of the boiler body. A smoke exhaust pipe 2 is arranged on the upper end of the smoke exhaust pipe 1, and the smoke exhaust pipe 1 is connected to the smoke exhaust pipe 2. A smoke exhaust pipe 3 is arranged on the outer end of the smoke exhaust pipe 2, and the lower end of the smoke exhaust pipe 3 is connected to the separation chamber.

3. A condensing gas boiler according to claim 2, characterized in that: A connecting pipe is provided between the smoke exhaust pipe 1 and the smoke exhaust pipe 2, and the smoke exhaust pipe 1 and the smoke exhaust pipe 2 are connected through the connecting pipe.

4. A condensing gas boiler according to claim 3, characterized in that: A step ring is arranged at the lower inner part of the connecting pipe, and an annular groove is arranged on the upper surface of the step ring. The diameter of the inner side surface of the upper part of the connecting pipe is equal to the diameter of the inner side surface of the second smoke exhaust pipe.

5. A condensing gas boiler according to claim 4, characterized in that: The side of the connecting pipe is connected to a smoke exhaust pipe four, the bottom of the inner side of the smoke exhaust pipe four is connected to the bottom of the annular groove, and the lower end of the smoke exhaust pipe four is connected to the lower part of the smoke exhaust pipe three.

6. A condensing gas boiler according to claim 2 or 5, characterized in that: The second smoke exhaust pipe is a U-shaped structure.

7. A condensing gas boiler according to claim 6, characterized in that: The second smoke exhaust pipe and the third smoke exhaust pipe are respectively and evenly provided with a plurality of nozzles one and two.

8. A condensing gas boiler according to claim 1, characterized in that: A sedimentation bin is arranged at the front side of the lower part of the separation bin, the sedimentation bin is connected with the separation bin, a cover plate is arranged at the upper surface of the sedimentation bin, a guide plate is arranged at the rear side of the bottom of the separation bin, the upper surface of the guide plate is a slope inclined forward, and the front side of the guide plate is the sedimentation bin.

9. A condensing gas boiler according to claim 8, characterized in that: Two guide plates 1 and 2 are arranged on the upper part of the separation bin. The guide plate 2 is located between the two guide plates 1. The upper end and the front and rear side surfaces of the guide plate 1 are connected to the inner side surface of the separation bin. A certain gap is left between the upper part of the guide plate 2 and the inner side surface of the separation bin. The front and rear side surfaces of the guide plate 2 are connected to the inner side surface of the separation bin.

10. A condensing gas boiler according to claim 9, characterized in that: The smoke exhaust pipe three is located on the left side of the separation chamber, and the lower end of the smoke exhaust pipe three is located on the left side of the guide plate one on the left side.

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