CN216204336U - Low-nitrogen condensation wall-mounted furnace - Google Patents
Low-nitrogen condensation wall-mounted furnace Download PDFInfo
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- CN216204336U CN216204336U CN202122686137.5U CN202122686137U CN216204336U CN 216204336 U CN216204336 U CN 216204336U CN 202122686137 U CN202122686137 U CN 202122686137U CN 216204336 U CN216204336 U CN 216204336U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model relates to the field of wall-mounted furnaces, in particular to a low-nitrogen condensation wall-mounted furnace, which comprises a shell and further comprises: the combustion assembly is fixedly arranged in the shell and used for providing heat energy for the heat exchange assembly; the heat exchange assembly is fixedly arranged in the shell and is used for heat exchange between cold water and hot water; a flue gas recirculation assembly mounted within the housing for recirculation combustion of flue gas; and the two ends of the smoke exhaust assembly are respectively connected with the combustion assembly and the shell, and the smoke exhaust assembly is used for exhausting smoke generated by combustion. The low-nitrogen condensation wall-mounted boiler provided by the utility model is provided with the combustion assembly, the heat exchange assembly, the flue gas recirculation assembly and the smoke exhaust assembly, so that the combustion efficiency and the heat exchange efficiency are improved, the formation of NOx is also inhibited, and the emission of NOx is greatly reduced.
Description
Technical Field
The utility model relates to the field of wall-mounted furnaces, in particular to a low-nitrogen condensation wall-mounted furnace.
Background
The wall-mounted boiler is a gas wall-mounted boiler, is called as a gas wall-mounted heating boiler for short, is a water heater taking natural gas as energy, and has various safety protection measures such as anti-freezing protection, anti-dry heating protection, accidental flameout protection, over-temperature protection, water pump anti-blocking protection and the like. The gas hanging stove has powerful family central heating function, can satisfy the heating demand in many rooms, and comfortable temperature can be set for at will according to the demand in each room, also can decide certain room as required and close the heating alone to can provide large-traffic constant temperature sanitary hot water, supply places such as family's shower, kitchen to use, economical and practical.
The existing wall-mounted furnace often has incomplete combustion products in the discharged flue gas because of insufficient combustion, so that a large amount of NOx products are discharged to pollute the environment and air. Therefore, in view of the above situation, there is a need to develop a low-nitrogen condensation wall-hanging stove to overcome the shortcomings of the current practical application.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a low-nitrogen condensation wall-mounted boiler to solve the problems in the background art.
In order to achieve the purpose, the utility model provides the following technical scheme:
the utility model provides a low nitrogen condensation hanging stove, includes the casing, still includes: the combustion assembly is fixedly arranged in the shell and used for providing heat energy for the heat exchange assembly; the heat exchange assembly is fixedly arranged in the shell and is used for heat exchange between cold water and hot water; a flue gas recirculation assembly mounted within the housing for recirculation combustion of flue gas; and the two ends of the smoke exhaust assembly are respectively connected with the combustion assembly and the shell, and the smoke exhaust assembly is used for exhausting smoke generated by combustion.
As a further scheme of the utility model: the combustion assembly comprises a fuel mixing chamber, a fire row, an ignition needle, a fire detection needle and a combustion chamber, wherein two ends of the fuel mixing chamber are respectively connected with the fire row and the smoke recirculation assembly, the ignition needle and the fire detection needle are respectively arranged on the fire row, and the combustion chamber is arranged at the bottom of the fire row.
As a further scheme of the utility model: the heat exchange assembly comprises a main heat exchanger, a condensation heat exchanger and a plate heat exchanger, the main heat exchanger is installed in the combustion chamber, the condensation heat exchanger is installed on the side wall of one end in the shell, and the plate heat exchanger is installed in the shell.
As a further scheme of the utility model: the smoke exhaust component comprises a first fan, a wind pressure switch, a first smoke exhaust pipeline, a second smoke exhaust pipeline and a smoke filtering component, wherein the first fan is connected with the wind pressure switch and the first smoke exhaust pipeline respectively, the first smoke exhaust pipeline and the second smoke exhaust pipeline are connected with a condensation heat exchanger respectively, and the smoke filtering component is installed in the second smoke exhaust pipeline.
As a further scheme of the utility model: the smoke recycling assembly comprises a smoke inlet pipe, a filtering assembly, a second fan, a smoke outlet pipe, an air valve and a smoke nozzle, the smoke inlet pipe is connected with the smoke exhaust pipeline, the filtering assembly is installed in the smoke inlet pipe, two ends of the second fan are respectively connected with the smoke inlet pipe and the smoke outlet pipe, the air valve is installed on the smoke outlet pipe in a penetrating mode, and the smoke nozzle is installed on the end head of one side of the smoke outlet pipe.
As a further scheme of the utility model: and a condensed water outlet, a heating water outlet, a hot water outlet, a cold water inlet, a heating water inlet and a fuel gas inlet are arranged at the bottom of the shell.
As a further scheme of the utility model: the condensate outlet is connected with a condensate pipeline, a condensate neutralizer is installed on the condensate pipeline, and one side end of the condensate pipeline is connected with the condensing heat exchanger.
As a further scheme of the utility model: the heating water supply system is characterized in that an electric three-way valve, a heating water outlet pipeline, a heating water outlet temperature sensing probe and a limit temperature controller are arranged on the heating water outlet, a water replenishing valve, a safety relief valve, a circulating water pump and a heating water inlet pipeline are arranged on the heating water inlet, and an expansion water tank is connected to the heating water inlet pipeline.
As a further scheme of the utility model: the hot water outlet is provided with a hot water outlet temperature sensing probe and a hot water outlet pipeline, the cold water inlet is provided with a cold water outlet pipeline, and the cold water outlet pipeline and the hot water outlet pipeline are respectively connected with the plate heat exchanger.
As a further scheme of the utility model: the fuel gas mixing device is characterized in that a fuel gas proportional valve, a fuel gas inlet pipeline and a fuel gas nozzle are installed on the fuel gas inlet, the fuel gas proportional valve is installed on the fuel gas inlet pipeline in a penetrating mode, and two ends of the fuel gas inlet pipeline are connected with the fuel gas inlet and the fuel mixing chamber respectively.
Compared with the prior art, the utility model has the beneficial effects that:
1) through the structural arrangement of the combustion assembly and the flue gas recirculation assembly, fuel gas and incompletely combusted flue gas in equal proportion can be mixed in the fuel mixing chamber and then enter the combustion chamber to be combusted to generate heat, and the arrangement obviously reduces incomplete combustion products in the flue gas, improves the combustion efficiency, inhibits the formation of NOx and greatly reduces the NOx emission;
2) through the structural arrangement of the heat exchange assembly, the main heat exchanger can absorb heat generated by combustion, and the condensing heat exchanger can absorb heat in smoke during smoke exhaust, so that the arrangement improves the use efficiency of heat energy, reduces heat loss and improves the heat exchange efficiency;
3) through the structure setting of the subassembly of discharging fume, through fan one and the wind pressure switch that is provided with, can the automatic adjustment wind pressure size, let the flue gas that produces can be timely enter into the condensation heat exchanger in, improved heat exchange efficiency, and through being provided with flue gas filtering component, can filter the impurity that discharges in the flue gas, prevent the polluted environment.
In summary, the utility model is a low-nitrogen condensation wall-mounted boiler, which overcomes the defects in the current practical application, improves the combustion efficiency and the heat exchange efficiency by arranging the combustion assembly, the heat exchange assembly, the flue gas recirculation assembly and the smoke exhaust assembly, and inhibits the formation of NOx, thereby greatly reducing the discharge amount of NOx.
Drawings
Fig. 1 is a schematic view of the internal structure of the low-nitrogen condensation wall-hanging furnace of the utility model.
In the figure: 1-furnace body, 2-combustion assembly, 21-fuel mixing chamber, 22-fire grate, 23-ignition needle, 24-fire detection needle, 25-combustion chamber, 3-heat exchange assembly, 31-main heat exchanger, 32-condensing heat exchanger, 33-plate heat exchanger, 4-flue gas recirculation assembly, 41-flue gas inlet pipe, 42-filter assembly, 43-second fan, 44-flue gas outlet pipe, 45-air valve, 46-flue gas nozzle, 5-smoke exhaust assembly, 51-first fan, 52-air pressure switch, 53-first smoke exhaust pipe, 54-second smoke exhaust pipe, 55-flue gas filter assembly, 6-expansion water tank, 7-condensed water outlet, 71-condensed water pipe, 72-condensed water neutralizer, 8-a heating water outlet, 81-an electric three-way valve, 82-a heating water outlet pipeline, 83-a heating water outlet temperature sensing probe, 84-a limit temperature controller, 9-a hot water outlet, 91-a hot water outlet temperature sensing probe, 92-a hot water outlet pipeline, 10-a cold water inlet, 101-a cold water inlet pipeline, 11-a heating water inlet, 111-a water supplementing valve, 112-a safety pressure relief valve, 113-a circulating water pump, 114-a heating water inlet pipeline, 12-a fuel gas inlet, 121-a fuel gas proportional valve, 122-a fuel gas inlet pipeline and 123-a fuel gas nozzle.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The technical solution of the present invention will be described in further detail with reference to specific embodiments.
As shown in fig. 1, a low-nitrogen condensation wall-mounted boiler provided as an embodiment of the present invention includes a housing 1, and further includes: the combustion assembly 2 is fixedly arranged in the shell 1, and the combustion assembly 2 is used for providing heat energy for the heat exchange assembly 3; the heat exchange component 3 is fixedly arranged in the shell 1, and the heat exchange component 3 is used for heat exchange between cold water and hot water; a flue gas recirculation assembly 4, the flue gas recirculation assembly 4 being mounted within the housing 1, the flue gas recirculation assembly 4 being for recirculated combustion of flue gas; the two ends of the smoke exhaust assembly 5 are respectively connected with the combustion assembly 2 and the shell 1, the smoke exhaust assembly 5 is used for exhausting smoke generated by combustion, the combustion efficiency and the heat exchange efficiency are improved by arranging the combustion assembly 2, the heat exchange assembly 3, the smoke recirculation assembly 4 and the smoke exhaust assembly 5, NOx is inhibited from being formed, and therefore the NOx emission amount is greatly reduced.
As shown in fig. 1, as a preferred embodiment of the present invention, the combustion assembly 2 includes a fuel mixing chamber 21, a fire grate 22, an ignition needle 23, a fire detection needle 24 and a combustion chamber 25, wherein both ends of the fuel mixing chamber 21 are respectively connected to the fire grate 22 and the flue gas recirculation assembly 4, the ignition needle 23 and the fire detection needle 24 are respectively mounted on the fire grate 22, and the combustion chamber 25 is mounted at the bottom of the fire grate 22.
As shown in fig. 1, as a preferred embodiment of the present invention, the heat exchange assembly 3 includes a main heat exchanger 31, a condensing heat exchanger 32 and a plate heat exchanger 34, the main heat exchanger 31 is installed in the combustion chamber 25, the condensing heat exchanger 32 is installed on a side wall of one end in the housing 1, the plate heat exchanger 34 is installed in the housing 1, heat generated by combustion can be absorbed by the main heat exchanger 31, and heat in flue gas during smoke exhaust can be absorbed by the condensing heat exchanger 32, so that the arrangement improves the use efficiency of heat energy, reduces heat loss, and improves heat exchange efficiency.
As shown in fig. 1, as a preferred embodiment of the present invention, the smoke exhaust assembly 5 includes a first fan 51, a wind pressure switch 52, a first smoke exhaust pipeline 53, a second smoke exhaust pipeline 54 and a smoke filter assembly 56, the first fan 51 is respectively connected to the wind pressure switch 52 and the first smoke exhaust pipeline 53, the first smoke exhaust pipeline 53 and the second smoke exhaust pipeline 54 are respectively connected to the condensing heat exchanger 32, the smoke filter assembly 56 is installed in the second smoke exhaust pipeline 54, and the wind pressure can be automatically adjusted by the first fan 51 and the wind pressure switch 52, so that the generated smoke can timely enter the condensing heat exchanger 32, thereby improving the heat exchange efficiency, and the smoke filter assembly 56 can filter impurities in the discharged smoke to prevent environmental pollution.
As shown in fig. 1, as a preferred embodiment of the present invention, the flue gas recirculation assembly 4 includes a flue gas inlet pipe 41, a filter assembly 42, a second fan 43, a flue gas outlet pipe 44, an air valve 45 and a flue gas nozzle 46, the flue gas inlet pipe 41 is connected to a second exhaust pipe 54, the filter assembly 42 is installed in the flue gas inlet pipe 41, two ends of the second fan 43 are respectively connected to the flue gas inlet pipe 41 and the flue gas outlet pipe 44, the air valve 45 is installed on the flue gas outlet pipe 44 in a penetrating manner, the flue gas nozzle 46 is installed on one end of the flue gas outlet pipe 44, by the structural arrangement of the combustion assembly 2 and the flue gas recirculation assembly 4, fuel gas and incompletely combusted flue gas in equal proportion can be mixed in the fuel mixing chamber 21 and then enter the combustion chamber 25 to be combusted to generate heat, such arrangement significantly reduces incomplete combustion products in the flue gas, the combustion efficiency is improved, and the formation of NOx is suppressed, so that the NOx emission amount can be greatly reduced.
As shown in fig. 1, as a preferred embodiment of the present invention, a condensed water outlet 7, a heating water outlet 8, a hot water outlet 9, a cold water inlet 10, a heating water inlet 11 and a gas inlet 12 are installed at the bottom of the housing 1.
As shown in fig. 1, as a preferred embodiment of the present invention, the condensed water outlet 7 is connected to a condensed water pipe 71, a condensed water neutralizer 72 is installed on the condensed water pipe 71, and one end of the condensed water pipe 71 is connected to the condensing heat exchanger 32.
As shown in fig. 1, as a preferred embodiment of the present invention, an electric three-way valve 81, a heating water outlet pipe 82, a heating water outlet temperature sensing probe 83 and a limit temperature controller 84 are installed on the heating water outlet 8, a water replenishment valve 111, a safety relief valve 112, a circulation water pump 113 and a heating water inlet pipe 114 are installed on the heating water inlet 11, and an expansion tank 6 is connected to the heating water inlet pipe 114.
As shown in fig. 1, as a preferred embodiment of the present invention, a hot water outlet temperature sensing probe 91 and a hot water outlet pipe 92 are installed on the hot water outlet 9, a cold water outlet pipe 101 is installed on the cold water inlet 10, and the cold water outlet pipe 101 and the hot water outlet pipe 92 are respectively connected to the plate heat exchanger 33.
As shown in fig. 1, as a preferred embodiment of the present invention, a gas proportional valve 121, a gas inlet pipe 122 and a gas nozzle 123 are installed on the gas inlet 12, the gas proportional valve 121 is installed on the gas inlet pipe 122 in a penetrating manner, and both ends of the gas inlet pipe 122 are respectively connected to the gas inlet 12 and the fuel mixing chamber 21.
The working principle of the utility model is as follows: when in use, through the structural arrangement of the combustion assembly 2 and the flue gas recirculation assembly 4, equal proportion of fuel gas and incompletely combusted flue gas can be mixed in the fuel mixing chamber 21 and then enter the combustion chamber 25 for combustion and heat production; the air pressure can be automatically adjusted by the first fan 51 and the air pressure switch 52, so that the generated flue gas can timely enter the condensing heat exchanger 32, the heat exchange efficiency is improved, and impurities in the discharged flue gas can be filtered by the flue gas filtering component 56, so that the environment is prevented from being polluted; through being provided with main heat exchanger 31 can absorb the heat that the burning produced, can absorb the heat in the flue gas when discharging fume through being provided with condensation heat exchanger 32, such setting has improved the availability factor of heat energy, has reduced calorific loss, has improved heat exchange efficiency, outlet conduit and inlet channel are connected with heat exchange component respectively, reach the heat transfer function, and this is exactly the theory of operation of this low nitrogen condensation hanging stove.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. The utility model provides a low nitrogen condensation hanging stove, includes the casing, its characterized in that still includes:
the combustion assembly is fixedly arranged in the shell and used for providing heat energy for the heat exchange assembly;
the heat exchange assembly is fixedly arranged in the shell and is used for heat exchange between cold water and hot water;
a flue gas recirculation assembly mounted within the housing for recirculation combustion of flue gas;
and the two ends of the smoke exhaust assembly are respectively connected with the combustion assembly and the shell, and the smoke exhaust assembly is used for exhausting smoke generated by combustion.
2. The low-nitrogen condensation wall-mounted boiler according to claim 1, wherein the combustion assembly comprises a fuel mixing chamber, a fire grate, an ignition needle, a fire detection needle and a combustion chamber, two ends of the fuel mixing chamber are respectively connected with the fire grate and the flue gas recirculation assembly, the ignition needle and the fire detection needle are respectively installed on the fire grate, and the combustion chamber is installed at the bottom of the fire grate.
3. The low-nitrogen condensation wall-mounted boiler according to claim 1, wherein the heat exchange assembly comprises a main heat exchanger, a condensation heat exchanger and a plate heat exchanger, the main heat exchanger is installed in the combustion chamber, the condensation heat exchanger is installed on the side wall of one end in the shell, and the plate heat exchanger is installed in the shell.
4. The low-nitrogen condensation wall-mounted boiler according to claim 1, wherein the smoke exhaust assembly comprises a first fan, a wind pressure switch, a first smoke exhaust pipeline, a second smoke exhaust pipeline and a smoke filter assembly, the first fan is connected with the wind pressure switch and the first smoke exhaust pipeline respectively, the first smoke exhaust pipeline and the second smoke exhaust pipeline are connected with the condensation heat exchanger respectively, and the smoke filter assembly is installed in the second smoke exhaust pipeline.
5. The low-nitrogen condensation wall-mounted boiler according to claim 1, wherein the flue gas recirculation assembly comprises a flue gas inlet pipe, a filtering assembly, a second fan, a flue gas outlet pipe, an air valve and a flue gas nozzle, the flue gas inlet pipe is connected with the smoke exhaust pipeline, the filtering assembly is installed in the flue gas inlet pipe, two ends of the second fan are respectively connected with the flue gas inlet pipe and the flue gas outlet pipe, the air valve is installed on the flue gas outlet pipe in a penetrating manner, and the flue gas nozzle is installed at one end of the flue gas outlet pipe.
6. The low-nitrogen condensation wall-hanging stove according to claim 1, wherein a condensed water outlet, a heating water outlet, a hot water outlet, a cold water inlet, a heating water inlet and a gas inlet are installed at the bottom of the shell.
7. The low-nitrogen condensation wall-hanging stove according to claim 6, wherein the condensed water outlet is connected with a condensed water pipeline, a condensed water neutralizer is installed on the condensed water pipeline, and one end of the condensed water pipeline is connected with the condensation heat exchanger.
8. The low-nitrogen condensation wall-mounted boiler according to claim 6, wherein the heating water outlet is provided with an electric three-way valve, a heating water outlet pipeline, a heating water outlet temperature sensing probe and a limit temperature controller, the heating water inlet is provided with a water replenishing valve, a safety relief valve, a circulating water pump and a heating water inlet pipeline, and the heating water inlet pipeline is connected with an expansion water tank.
9. The low-nitrogen condensation wall-mounted boiler according to claim 6, wherein a hot water outlet temperature sensing probe and a hot water outlet pipe are mounted on the hot water outlet, a cold water outlet pipe is mounted on the cold water inlet, and the cold water outlet pipe and the hot water outlet pipe are respectively connected with the plate heat exchanger.
10. The low-nitrogen condensation wall-hanging stove according to claim 6, wherein a gas proportional valve, a gas inlet pipeline and a gas nozzle are installed on the gas inlet, the gas proportional valve is installed on the gas inlet pipeline in a penetrating mode, and two ends of the gas inlet pipeline are respectively connected with the gas inlet and the fuel mixing chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122686137.5U CN216204336U (en) | 2021-11-04 | 2021-11-04 | Low-nitrogen condensation wall-mounted furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122686137.5U CN216204336U (en) | 2021-11-04 | 2021-11-04 | Low-nitrogen condensation wall-mounted furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216204336U true CN216204336U (en) | 2022-04-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122686137.5U Active CN216204336U (en) | 2021-11-04 | 2021-11-04 | Low-nitrogen condensation wall-mounted furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216204336U (en) |
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2021
- 2021-11-04 CN CN202122686137.5U patent/CN216204336U/en active Active
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