CN212253131U - Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace - Google Patents

Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace Download PDF

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Publication number
CN212253131U
CN212253131U CN202020739728.7U CN202020739728U CN212253131U CN 212253131 U CN212253131 U CN 212253131U CN 202020739728 U CN202020739728 U CN 202020739728U CN 212253131 U CN212253131 U CN 212253131U
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China
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water
smoke exhaust
nitrogen
heating
low
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CN202020739728.7U
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黎伟良
王新柏
南贤弟
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Zhejiang Angkela Thermal Energy Technology Co ltd
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Zhejiang Angkela Thermal Energy Technology Co ltd
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Abstract

The utility model discloses an air current distribution formula low nitrogen discharges frequency conversion hanging stove, which comprises an outer shell, the burning heat transfer structure, smoke exhaust structure, business turn over water structure and water pressure steady voltage structure, the burning heat transfer structure includes combustion assembly and heat exchange component, combustion assembly includes the low nitrogen combustor, the combustion chamber, thermal-insulated room, the gas import, the water inlet, the delivery port, single needle point fire needle, heat exchange component includes main heat exchanger and limit temperature control switch, smoke exhaust structure includes the enclosure, smoke exhausting fan, the discharge flue, the downside of enclosure is equipped with the spoiler, business turn over water structure includes the heating delivery port, the heating return water mouth, domestic water import and domestic water export, shell bottom inboard still is equipped with the plate heat exchanger of connecting the heating outlet pipe. The utility model discloses warm up the dual function of heat supply and domestic water heat supply with having combined, can reduce nitrogen oxide's formation, the flue gas flow and the velocity of flow of every position of distribution enclosure that simultaneously can be even reduce and discharge pollution, protection air quality.

Description

Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace
Technical Field
The utility model relates to a heating equipment especially relates to an air current distribution formula low nitrogen discharges frequency conversion hanging stove.
Background
The wall-mounted boiler is generally used for providing pipeline circulating hot water for floor heating or providing domestic hot water for kitchens and toilets, the conventional wall-mounted boiler usually has a single function, the combustion temperature of a combustion structure is higher, more nitrogen oxides are generated, the nitrogen content of discharged waste gas is higher, the gas resource is wasted, and the air quality is influenced; the smoke exhaust structure is characterized in that smoke generated by the combustor is sucked from the smoke exhaust hood under the action of the smoke exhaust fan, passes through the smoke exhaust fan after being filtered by the smoke exhaust hood and is exhausted from the smoke exhaust channel, and the smoke is not distributed uniformly, so that the filtering function of the smoke exhaust hood is affected, a lot of dense smoke cannot be effectively filtered, and the emission of harmful gases can be increased.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the defect that exists among the above-mentioned prior art and not enough, a dual function that has combined floor heating heat supply and domestic water heat supply is provided, the heat that can make full use of combustor production, the while burns heat transfer structure and has adopted the great low nitrogen combustor of water-cooling structure and air input to burn, combustion temperature can obtain effective control, thereby reduce combustion temperature, reduce nitrogen oxide's formation, make the waste gas nitrogen content of its emission low, the spoiler that can distribute the air current has been set up simultaneously in the enclosure bottom, thereby make its flue gas flow and the velocity of flow that distributes every position of enclosure that can be even, prevent that the flue gas is too intensive, ensure the filter effect to the flue gas, not only save the gas resource, and the low nitrogen of protected air quality's air distribution formula discharges frequency conversion hanging stove.
The technical scheme of the utility model: an airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace comprises a shell, a combustion heat exchange structure, a smoke exhaust structure, a water inlet and outlet structure and a water pressure stabilizing structure, wherein the combustion heat exchange structure, the smoke exhaust structure, the water inlet and outlet structure and the water pressure stabilizing structure are arranged in the shell, the combustion heat exchange structure comprises a combustion assembly and a heat exchange assembly positioned above the combustion assembly, the combustion assembly comprises a low-nitrogen combustor, a combustion chamber matched with the low-nitrogen combustor, a heat insulation chamber arranged in the combustion chamber, a gas inlet, a water inlet and a water outlet arranged on the low-nitrogen combustor and a single-needle ignition needle arranged on the low-nitrogen combustor, the heat exchange assembly comprises a main heat exchanger and a limit temperature control switch matched with the main heat exchanger, the main heat exchanger is connected with the low-nitrogen combustor through a return pipe, the smoke exhaust structure comprises a smoke exhaust hood, a smoke exhaust fan, a plurality of airflow distribution holes are uniformly distributed on the spoiler, a smoke exhaust groove is arranged in the smoke exhaust hood, the position of the spoiler corresponds to the position of the smoke exhaust groove, the smoke exhaust fan is a variable frequency fan, the water inlet and outlet structure comprises a heating water outlet, a heating water return port, a domestic water inlet and a domestic water outlet, the heating water return port is connected with the low-nitrogen burner through a water-cooling water pump and a water-cooling water pump pipe, the heating water outlet is connected with the main heat exchanger through a heating water outlet pipe, the water-cooled water pump, the water-cooled water pump pipe, the low-nitrogen burner, the water return pipe, the main heat exchanger, the heating water outlet pipe and an external ground heating pipeline form a circulating heating loop, the domestic water inlet and the domestic water outlet are respectively connected with the water inlet and the water outlet of the plate heat exchanger through pipelines, and the plate heat exchanger exchanges the heat of part of water in the heating water outlet pipe for domestic water.
The utility model discloses warm up the dual function of heat supply and domestic water heat supply with having combined, the heat that can make full use of combustor production, the heat transfer structure that burns has adopted water-cooling structure and the great low nitrogen combustor of air input to burn simultaneously, combustion temperature can obtain effective control, thereby reduce combustion temperature, reduce nitrogen oxide's formation, make the waste gas nitrogen content that its discharged low, set up the spoiler that can distribute the air current simultaneously in the enclosure bottom, thereby make its can be even distribute the flue gas flow and the velocity of flow at every position of enclosure, prevent that the flue gas is too intensive, ensure the filter effect to the flue gas, not only save the gas resource, and the protection air quality.
Preferably, the heating water outlet pipe is connected with the plate heat exchanger through a three-way motor, the water-cooled water pump is connected with a water replenishing port for replenishing water to the circulating heating loop and a water replenishing valve matched with the water replenishing port, and the water pressure stabilizing structure is an expansion water tank.
The structure is convenient for transferring heat in the heating water outlet pipe to the plate heat exchanger for domestic water to heat, water can be conveniently supplemented to the circulating heating loop, the water quantity in the circulating heating loop is ensured to be sufficient, and meanwhile, the water pressure is ensured to be stable and reliable (the expansion water tank is a conventional structure for stabilizing the water pressure of the wall-mounted boiler, so detailed description is omitted).
Preferably, the bottom of the shell is provided with a gas inlet, the gas inlet is connected with a gas inlet on the low-nitrogen combustor through a gas pipeline, and the gas pipeline is provided with a gas valve; the low-nitrogen combustor is a 12-water-discharge cold combustor, the single-needle ignition needle is installed on one side of the low-nitrogen combustor through an ignition needle support, the fuel gas inlet is located at the bottom of the low-nitrogen combustor, and the smoke exhaust fan is a variable frequency fan.
The structure ensures that the gas inlet of the low-nitrogen combustor is stable and reliable; and simultaneously, the cooling effect of the low-nitrogen combustor and the smoke exhaust effect of the smoke exhaust fan are further ensured.
Preferably, the water inlet, the water outlet and the single-needle ignition needle are located on the same side of the low-nitrogen combustor, the water inlet is used for being connected with a water-cooling water pump pipe, and the water outlet is used for being connected with a water return pipe.
The structure enables the combustor to be compact in structure and convenient to assemble.
Preferably, the main heat exchanger is provided with a water inlet pipe joint for connecting a water return pipe and a water outlet pipe joint for connecting a heating water outlet pipe, and the water inlet pipe joint and the water outlet pipe joint are respectively positioned at the opposite ends of the two sides of the main heat exchanger; and the water inlet pipe joint and the water outlet pipe joint are respectively provided with a clamping groove and a clamping plate for fixing a water pipe.
The structure ensures that the main heat exchanger has compact structure and convenient assembly; and meanwhile, the connection between the main heat exchanger and the water pipe is convenient and firm.
Preferably, the combustion chamber comprises a combustion chamber bottom plate, a combustion chamber side plate and a combustion chamber cover plate, and the heat insulation chamber comprises a heat insulation chamber bottom plate matched with the combustion chamber bottom plate, a heat insulation chamber side plate matched with the combustion chamber side plate and a heat insulation chamber cover plate matched with the combustion chamber cover plate.
The structure can well protect the combustion chamber, and further ensure the full and reliable combustion of the combustor.
Preferably, the enclosure for removing cooking fumes includes front shroud, backplate, roof and two curb plates, bend in the bottom of curb plate is equipped with, the bottom of front shroud is equipped with the reinforcing beam, the rear side of curb plate is equipped with the installation flanging.
The structure ensures the compact structure of the smoke exhaust hood and good smoke exhaust and filtering effects.
Preferably, a plurality of fixing buckle feet are arranged on both sides of the front cover and both sides of the back plate, and fixing buckle grooves matched with the fixing buckle feet are arranged on the side plates; and mounting lower flanges are arranged at two ends of the spoiler and are fixed on the inner sides of the side plates through screws.
The structure ensures that the structure of the smoke exhaust hood is firm and reliable, and the stability of smoke exhaust and filtration is good; and meanwhile, the spoiler is ensured to be firmly and reliably installed, and the airflow distribution is stable and reliable.
Preferably, the smoke exhaust fan is arranged at the upper part of the smoke exhaust hood, and the upper part of the smoke exhaust hood is provided with an air hole matched with an air inlet of the smoke exhaust fan; the top of the discharge flue is provided with a flue flow-limiting ring, and the flue flow-limiting ring is embedded into the discharge flue.
The structure ensures that the outlet air of the exhaust hood can smoothly enter the smoke exhaust fan and is exhausted from the exhaust flue at the top of the smoke exhaust fan; ensure the stable and reliable smoke discharge of the smoke discharge channel.
Preferably, the bottom of the heating water outlet pipe is provided with a heating NTC, a domestic water NTC is arranged at a domestic water outlet, a water pressure gauge is connected to the water heating water outlet, and a fire observation cover is further arranged inside the shell.
This kind of structure ensures the temperature control to heating water and ensures the temperature and the pressure control to domestic water, further ensures the safety of burning simultaneously.
The utility model discloses warm up the dual function of heat supply and domestic water heat supply with having combined, the heat that can make full use of combustor production, the heat transfer structure that burns has adopted water-cooling structure and the great low nitrogen combustor of air input to burn simultaneously, combustion temperature can obtain effective control, thereby reduce combustion temperature, reduce nitrogen oxide's formation, make the waste gas nitrogen content that its discharged low, set up the spoiler that can distribute the air current simultaneously in the enclosure bottom, thereby make its can be even distribute the flue gas flow and the velocity of flow at every position of enclosure, prevent that the flue gas is too intensive, ensure the filter effect to the flue gas, not only save the gas resource, and the protection air quality.
Drawings
FIG. 1 is an exploded view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is an exploded view of the heat exchange structure of the present invention;
FIG. 4 is a schematic structural view of the heat exchange structure and the smoke exhausting structure of the present invention;
fig. 5 is an exploded view of the smoke evacuation structure of the present invention;
fig. 6 is a schematic structural view of the smoke exhausting structure of the present invention;
in the figure, 1, a combustion assembly, 2, a heat exchange assembly, 3, a smoke exhaust structure, 4, a low-nitrogen burner, 5, a combustion chamber, 6, a heat insulation chamber, 7, a fuel gas inlet, 8, a water inlet, 9, a water outlet, 10, a single-needle ignition needle, 11, a main heat exchanger, 12, a limit temperature control switch, 13, a water return pipe, 14, a smoke exhaust hood, 15, a smoke exhaust fan, 16, a smoke exhaust channel, 17, an ignition needle support, 18, a water-cooling water pump pipe, 19, a water inlet pipe joint, 20, a water outlet pipe joint, 21, a heating water outlet pipe, 22, a clamping groove, 23, a clamping plate, 24, an air hole, 25, a combustion chamber bottom plate, 26, a combustion chamber side plate, 27, a combustion chamber cover plate, 28, a heat insulation chamber bottom plate, 29, a heat insulation chamber side plate, 30, a heat insulation chamber cover plate, 31, a shell, 32, a fire observation cover, 33, a combustion heat exchange structure, 34, 37. the heating water outlet, 38 heating water return port, 39 domestic water inlet, 40 domestic water outlet, 41 water-cooling water pump, 42 three-way motor, 43 gas inlet, 44 gas pipeline, 45 gas valve, 46 heating NTC, 47 domestic water NTC, 48 water pressure gauge, 49 water replenishing port, 50 water replenishing valve, 51 spoiler, 52 air flow distribution hole, 53 smoke exhaust groove, 54 flue flow limiting ring, 55 front cover, 56 back plate, 57 top plate, 58 side plate, 59 inner bend, 60 reinforcing beam, 61 mounting outer flange, 62 mounting lower flange, 63 fixing buckle pin, 64 fixing buckle groove.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings, but the present invention is not limited thereto.
As shown in fig. 1-6, an airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace comprises a shell 31, a combustion heat exchange structure 33 arranged in the shell 31, a smoke exhaust structure 3, a water inlet and outlet structure 34 and a water pressure stabilizing structure, wherein the combustion heat exchange structure 32 comprises a combustion assembly 1 and a heat exchange assembly 2 positioned above the combustion assembly 1. The combustion assembly 1 comprises a low-nitrogen combustor 4, a combustion chamber 5 matched with the low-nitrogen combustor 4, a heat insulation chamber 6 installed in the combustion chamber 5, a gas inlet 7, a water inlet 8 and a water outlet 9 which are arranged on the low-nitrogen combustor 4, and a single-needle ignition needle 10 installed on the low-nitrogen combustor 4, the heat exchange assembly comprises a main heat exchanger 11 and a limit temperature control switch 12 matched with the main heat exchanger 11, and the main heat exchanger 11 is connected with the low-nitrogen combustor 4 through a return water pipe 13. The smoke exhaust structure 39 comprises a smoke exhaust hood 14, a smoke exhaust fan 15 matched with the smoke exhaust hood 14 and a smoke exhaust channel 16 arranged at the top of the smoke exhaust fan 15, wherein a spoiler 51 is arranged at the lower side of the smoke exhaust hood 14, a plurality of air flow distribution holes 52 are uniformly distributed on the spoiler 51, a smoke exhaust groove 53 is formed in the smoke exhaust hood 14, and the position of the spoiler 51 corresponds to the position of the smoke exhaust groove 53. The water inlet and outlet structure 34 comprises a heating water outlet 37, a heating water return port 38, a domestic water inlet 39 and a domestic water outlet 40, the heating water return port 38 is connected with the low-nitrogen burner 4 through a water-cooling water pump 41 and a water-cooling water pump pipe 18, the heating water outlet 37 is connected with the main heat exchanger 11 through a heating water outlet pipe 21, and the water-cooling water pump 41, the water-cooling water pump pipe 18, the low-nitrogen burner 4, the water return pipe 13, the main heat exchanger 11, the heating water outlet pipe 21 and an external ground heating pipeline form a circulating heating loop. The inner side of the bottom of the shell 31 is also provided with a plate type heat exchanger 36 connected with the heating water outlet pipe 21, a domestic water inlet 39 and a domestic water outlet 40 are respectively connected with the water inlet and the water outlet of the plate type heat exchanger 36 through pipelines, and the plate type heat exchanger 36 exchanges the heat of part of water in the heating water outlet pipe 21 to domestic water. The heating water outlet pipe 21 is connected with the plate heat exchanger 36 through a three-way motor 42, the water cooling water pump 41 is connected with a water replenishing port 49 for replenishing water for the circulating heating loop and a water replenishing valve 50 matched with the water replenishing port 49, and the water pressure stabilizing structure is an expansion water tank 35. The bottom of shell 31 is equipped with gas and inserts mouth 43, and gas is inserted mouth 43 and is connected with gas import 7 on the low nitrogen combustor 4 through gas pipeline 44, is equipped with gas valve 45 on the gas pipeline 44. The low-nitrogen combustor 4 is a 12-water-discharge cold combustor, the single-needle ignition needle 10 is installed on one side of the low-nitrogen combustor 4 through the ignition needle support 17, the gas inlet 7 is located at the bottom of the low-nitrogen combustor 4, and the smoke exhaust fan 15 is a variable frequency fan. The water inlet 8, the water outlet 9 and the single-needle ignition needle 10 are all located on the same side of the low-nitrogen combustor 4, the water inlet 8 is used for being connected with a water-cooling water pump pipe 18, and the water outlet 9 is used for being connected with a water return pipe 13. The main heat exchanger 11 is provided with a water inlet pipe joint 19 for connecting the water return pipe 13 and a water outlet pipe joint 20 for connecting the heating water outlet pipe 21, and the water inlet pipe joint 19 and the water outlet pipe joint 20 are respectively positioned on the opposite ends of both sides of the main heat exchanger 11. The water inlet pipe joint 19 and the water outlet pipe joint 20 are both provided with a clamping groove 22 and a clamping plate 23 for fixing a water pipe. The smoke exhaust fan 15 is arranged on the upper part of the smoke exhaust hood 14, and the upper part of the smoke exhaust hood 14 is provided with an air hole 24 matched with an air inlet of the smoke exhaust fan 15. The combustion chamber 5 includes a combustion chamber bottom plate 25, a combustion chamber side plate 26, and a combustion chamber cover plate 27, and the heat insulating chamber 6 includes a heat insulating chamber bottom plate 26 fitted to the combustion chamber bottom plate 25, a heat insulating chamber side plate 29 fitted to the combustion chamber side plate 26, and a heat insulating chamber cover plate 30 fitted to the combustion chamber cover plate 27. The smoke exhaust fan 15 is arranged on the upper part of the smoke exhaust hood 14, and the upper part of the smoke exhaust hood 14 is provided with an air hole 24 matched with an air inlet of the smoke exhaust fan 15. The smoke exhaust hood 14 comprises a front hood 55, a back plate 56, a top plate 57 and two side plates 58, wherein the bottom of each side plate 58 is provided with an inner bend 59, the bottom of the front hood 55 is provided with a reinforcing beam 60, and the rear side of each side plate 58 is provided with an installation flanging 61. Both sides of the front cover 55 and both sides of the back plate 56 are provided with a plurality of fixing buckle feet 63, and the side plate 58 is provided with fixing buckle grooves 64 matched with the fixing buckle feet 63. The spoiler 51 is provided at both ends thereof with mounting down-turned edges 62, and the mounting down-turned edges 62 are fixed to the inner sides of the side plates 58 by screws. The top of the discharge flue 16 is provided with a flue restrictor ring 54, and the flue restrictor ring 54 is embedded in the discharge flue 16. The bottom of the heating water outlet pipe 21 is provided with heating NTC46, the domestic water outlet 40 is provided with domestic water NTC47, the heating water outlet 37 is connected with a water pressure gauge 48, and the inside of the shell 31 is also provided with a fire observation cover 32.
The utility model discloses during the use, circulation heating return circuit working process as follows:
firstly, opening a water replenishing valve, adding water to the circulating heating loop from a water replenishing port, and then closing the water replenishing valve of the water replenishing port; cold water is sent into the low-nitrogen combustor from a water inlet through a water-cooling water pump and a water-cooling water pump pipe, the cold water cools the low-nitrogen combustor to a certain degree, the combustion temperature is reduced, then the cold water is sent into the main heat exchanger from a water outlet through a water return pipe, the combustion of the low-nitrogen combustor heats the main heat exchanger, so that water flowing through the main heat exchanger is heated, the heated water flows out of a heating water outlet through a heating water outlet pipe to a floor heating pipeline, the water used by the floor heating pipeline enters the water-cooling water pump pipe from the heating water return port under the action of the water cold water pump, then enters the water inlet into the low-nitrogen combustor, and circulates in a reciprocating manner;
the flue gas that low nitrogen combustor burning produced inhales the enclosure from the bottom of enclosure under the effect of smoke exhaust fan in, at this moment, the air current distribution hole on the spoiler of enclosure bottom evenly distributes the flue gas to each inside position of enclosure.
The domestic water heating process is as follows: the hot water in the heating outlet pipe enters the plate heat exchanger under the action of the three-way motor, the cold water entering the plate heat exchanger from the domestic water inlet is heated, the hot water after heat exchange of the plate heat exchanger flows out of a domestic water outlet to be used in a toilet or a kitchen, and the like, and partial hot water in the heating outlet pipe returns to a heating outlet pipe through a circulating pipeline after the domestic water is heated in the plate heat exchanger (because the water temperature in the heating outlet pipe is higher, the water temperature in time partially returning from the plate heat exchanger is lower, and the water temperature of the heating outlet pipe is enabled to meet the requirement of floor heating water more uniformly.
The utility model discloses warm up the dual function of heat supply and domestic water heat supply with having combined, the heat that can make full use of combustor production, the heat transfer structure that burns has adopted water-cooling structure and the great low nitrogen combustor of air input to burn simultaneously, combustion temperature can obtain effective control, thereby reduce combustion temperature, reduce nitrogen oxide's formation, make the waste gas nitrogen content that its discharged low, set up the spoiler that can distribute the air current simultaneously in the enclosure bottom, thereby make its can be even distribute the flue gas flow and the velocity of flow at every position of enclosure, prevent that the flue gas is too intensive, ensure the filter effect to the flue gas, not only save the gas resource, and the protection air quality.

Claims (10)

1. The utility model provides a low nitrogen of air current distribution formula discharges frequency conversion hanging stove, includes the shell, sets up burning heat transfer structure, smoke exhaust structure, business turn over water structure and water pressure steady voltage structure in the shell, burning heat transfer structure includes combustion assembly and the heat transfer assembly who is located the combustion assembly top, its characterized in that: the combustion assembly comprises a low-nitrogen combustor, a combustion chamber matched with the low-nitrogen combustor, a heat insulation chamber installed in the combustion chamber, a gas inlet, a water inlet and a water outlet arranged on the low-nitrogen combustor, and a single-needle ignition needle installed on the low-nitrogen combustor, the heat exchange assembly comprises a main heat exchanger and a limit temperature control switch matched with the main heat exchanger, the main heat exchanger is connected with the low-nitrogen combustor through a return water pipe, the smoke exhaust structure comprises a smoke exhaust hood, a smoke exhaust fan matched with the smoke exhaust hood and a smoke exhaust channel installed at the top of the smoke exhaust fan, a spoiler is arranged on the lower side of the smoke exhaust hood, a plurality of airflow distribution holes are uniformly distributed on the spoiler, a smoke exhaust groove is arranged in the smoke exhaust hood, the position of the spoiler corresponds to the position of the smoke exhaust groove, the smoke exhaust fan is a variable frequency fan, and the water inlet and outlet structure, Domestic water import and domestic water export, the heating return water mouth passes through water-cooled water pump and water-cooled water pump union coupling low nitrogen combustor, the heating delivery port is through heating water piping connection main heat exchanger, water-cooled water pump, low nitrogen combustor, wet return, main heat exchanger, heating outlet pipe and outside ground heating pipe form the circulation heating return circuit, shell bottom inboard still is equipped with the plate heat exchanger of connecting the heating outlet pipe, domestic water import and domestic water export are respectively through the inlet outlet of pipe connection plate heat exchanger, plate heat exchanger exchanges the heat of the part of water of heating outlet pipe for domestic water.
2. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the heating water outlet pipe is connected with the plate heat exchanger through a three-way motor, the water-cooling water pump is connected with a water replenishing port for replenishing water for the circulating heating loop and a water replenishing valve matched with the water replenishing port, and the water pressure stabilizing structure is an expansion water tank.
3. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the bottom of the shell is provided with a gas access port, the gas access port is connected with a gas inlet on the low-nitrogen combustor through a gas pipeline, and the gas pipeline is provided with a gas valve; the low-nitrogen combustor is a 12-water-discharge cold combustor, the single-needle ignition needle is installed on one side of the low-nitrogen combustor through the ignition needle support, and the fuel gas inlet is located at the bottom of the low-nitrogen combustor.
4. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the water inlet, the water outlet and the single-needle ignition needle are located on the same side of the low-nitrogen combustor, the water inlet is used for being connected with a water-cooling water pump pipe, and the water outlet is used for being connected with a water return pipe.
5. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the main heat exchanger is provided with a water inlet pipe joint for connecting a water return pipe and a water outlet pipe joint for connecting a heating water outlet pipe, and the water inlet pipe joint and the water outlet pipe joint are respectively positioned on the opposite ends of the two sides of the main heat exchanger; and the water inlet pipe joint and the water outlet pipe joint are respectively provided with a clamping groove and a clamping plate for fixing a water pipe.
6. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the combustion chamber comprises a combustion chamber bottom plate, a combustion chamber side plate and a combustion chamber cover plate, and the heat insulation chamber comprises a heat insulation chamber bottom plate matched with the combustion chamber bottom plate, a heat insulation chamber side plate matched with the combustion chamber side plate and a heat insulation chamber cover plate matched with the combustion chamber cover plate.
7. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the smoke exhaust hood comprises a front hood, a back plate, a top plate and two side plates, wherein the bottoms of the side plates are provided with inner bends, the bottom of the front hood is provided with a reinforcing beam, and the rear sides of the side plates are provided with mounting flanges.
8. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 7, characterized in that: a plurality of fixing buckle feet are arranged on both sides of the front cover and both sides of the back plate, and fixing buckle grooves matched with the fixing buckle feet are arranged on the side plates; and mounting lower flanges are arranged at two ends of the spoiler and are fixed on the inner sides of the side plates through screws.
9. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the smoke exhaust fan is arranged on the upper part of the smoke exhaust hood, and the upper part of the smoke exhaust hood is provided with an air hole matched with an air inlet of the smoke exhaust fan; the top of the discharge flue is provided with a flue flow-limiting ring, and the flue flow-limiting ring is embedded into the discharge flue.
10. The airflow distribution type low-nitrogen-emission variable-frequency wall-mounted furnace according to claim 1, characterized in that: the bottom of heating outlet pipe is equipped with the heating NTC, domestic water exit is equipped with domestic water NTC, be connected with the water pressure gauge on the heating delivery port, the inside of shell still is equipped with sees the fire cover.
CN202020739728.7U 2020-05-08 2020-05-08 Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace Active CN212253131U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020739728.7U CN212253131U (en) 2020-05-08 2020-05-08 Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020739728.7U CN212253131U (en) 2020-05-08 2020-05-08 Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace

Publications (1)

Publication Number Publication Date
CN212253131U true CN212253131U (en) 2020-12-29

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Application Number Title Priority Date Filing Date
CN202020739728.7U Active CN212253131U (en) 2020-05-08 2020-05-08 Airflow distribution type low-nitrogen emission variable-frequency wall-mounted furnace

Country Status (1)

Country Link
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