CN110793192A - Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace - Google Patents
Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace Download PDFInfo
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- CN110793192A CN110793192A CN201911062194.7A CN201911062194A CN110793192A CN 110793192 A CN110793192 A CN 110793192A CN 201911062194 A CN201911062194 A CN 201911062194A CN 110793192 A CN110793192 A CN 110793192A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/02—Arrangement of mountings or supports for radiators
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/44—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with combinations of two or more of the types covered by groups F24H1/24 - F24H1/40 , e.g. boilers having a combination of features covered by F24H1/24 - F24H1/40
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/12—Arrangements for connecting heaters to circulation pipes
- F24H9/13—Arrangements for connecting heaters to circulation pipes for water heaters
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
Abstract
The invention relates to the technical field of wall-mounted furnaces, in particular to an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace. The device comprises a multi-stage heat storage circulating device, wherein fuel gas is combusted in a combustion chamber to primarily heat water in fins of the combustion chamber, and combusted flue gas secondarily heats the fins in the combustion chamber when passing through a preheating water tank, so that the primary recovery effect of heat of the flue gas is realized; inside the gas heat exchange box is got into from preheating water tank to the flue gas, the flue gas can heat gas and combustion-supporting air in gas heat exchange box inside, the initial heat of gas and combustion-supporting air burning is higher, thereby realize the thermal second grade of flue gas and retrieve, the flue gas is discharged from the exhaust port at last, exhaust flue gas heat and nitrogen content are lower, thereby energy-concerving and environment-protective effect has been reached, the flue gas after having solved the burning of traditional hanging stove is directly discharged to the external world, because of the flue gas heat is higher, not only cause the energy extravagant, and the nitrogen content is higher when the flue gas heat is too high, discharge the problem that the external world caused environmental pollution.
Description
Technical Field
The invention relates to the technical field of wall-mounted furnaces, in particular to an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Background
The wall-mounted boiler is also a gas wall-mounted heating boiler, mainly uses natural gas as a water heater of energy, and has protection measures such as anti-freezing, dry burning prevention and over-high temperature protection; the existing wall-mounted boiler has the working principle that natural gas is combusted through a combustor to heat fins, two ends of each fin are connected with a heating pipe and a circulating pump, and water in the heating pipes is conveyed through the circulating pump in a circulating mode to be heated continuously; the flue gas after burning directly discharges to the external world, because of the flue gas heat is higher, not only causes the energy extravagant, and the nitrogen content is higher when the flue gas heat is too high moreover, discharges to the external world and causes environmental pollution.
Disclosure of Invention
The invention aims to solve the technical problems and provides an energy-saving environment-friendly low-nitrogen gas wall-mounted furnace aiming at the technical defects, the design of a multi-stage heat storage circulating device is adopted, gas is combusted in a combustion chamber to primarily heat water in fins of the gas, and combusted flue gas secondarily heats the fins in the gas when passing through a preheating water tank, so that the primary recovery effect of the heat of the flue gas is realized; inside the gas heat exchange box is got into from preheating water tank to the flue gas, the flue gas can heat gas and combustion-supporting air in gas heat exchange box inside, the initial heat of gas and combustion-supporting air burning is higher, thereby realize the thermal second grade of flue gas and retrieve, the flue gas is discharged from the exhaust port at last, exhaust flue gas heat and nitrogen content are lower, thereby energy-concerving and environment-protective effect has been reached, the flue gas after having solved the burning of traditional hanging stove is directly discharged to the external world, because of the flue gas heat is higher, not only cause the energy extravagant, and the nitrogen content is higher when the flue gas heat is too high, discharge the problem that the external world caused environmental pollution.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows: the system comprises a gas wall-mounted box furnace, heating radiators and a multistage heat storage circulating device; the bottom of the gas wall-mounted box furnace is provided with a hot water pipe and a water return pipe; the hot water pipe and the water return pipe are connected through a plurality of heating radiators; the multistage heat storage circulating device is arranged inside the gas wall-mounted box furnace.
The multi-stage heat storage circulating device comprises a supporting seat, an air-fuel mixing chamber, a combustion chamber, a preheating connecting pipe, a transition pipe, a cold water connecting pipe, a water supplementing connecting pipe, a household water storage tank and an expansion water tank; the support seat is fixedly arranged at the bottom end inside the gas wall-mounted box furnace; a control box and a circulating water pump are fixedly arranged in the supporting seat; the air-fuel mixing chamber is fixedly arranged at the top of the supporting seat; a mixing joint is arranged at the top of the air-fuel mixing chamber; the bottom end in the combustion chamber is provided with a gas combustion row; the gas combustion row is connected with the air-fuel mixing chamber through a mixing joint; the combustion chamber is fixedly arranged in the gas wall-mounted box furnace above the supporting seat; a preheating water tank is fixedly arranged at the top of the combustion chamber; the top of the preheating water tank is provided with a gas-heat exchange tank; the expansion water tank is fixedly arranged at the top of the air heat exchange box.
Further optimizing the technical scheme, the two ends in the combustion chamber are respectively provided with a first clapboard in a sealing way; a first strip-shaped fin is arranged between the two first partition plates in the vertical direction; the plurality of first strip-shaped fins are uniformly distributed in the length direction of the first partition plate; gaps exist among the first strip-shaped fins; two ends of the interior of the preheating water tank are respectively provided with a second partition plate in a sealing way; a second strip-shaped fin is arranged between the two second partition plates in the vertical direction; the plurality of second strip-shaped fins are uniformly distributed in the length direction of the second partition plate; gaps exist among the second strip-shaped fins.
Further optimize this technical scheme, combustion chamber top and preheating water tank bottom between link up and be provided with first through-hole.
Further optimizing the technical scheme, the inlet end of the circulating water pump is provided with a water inlet pipe; the water inlet pipe is communicated with the water return pipe; a water supply pipe is arranged at the water outlet end of the circulating water pump; the other end of the water supply pipe is communicated with the right end of the combustion chamber; the left end of the combustion chamber is communicated with the left end of the preheating water tank through a preheating connecting pipe; a water outlet pipe and a pressure regulating pipe are respectively arranged on two sides of the middle part of the right end of the preheating water tank; the water outlet pipe is communicated with the hot water pipe; the other end of the pressure regulating pipe is connected with the expansion water tank.
Further optimizing the technical scheme, the bottom of the gas-heat exchange box and the top of the preheating water tank are provided with a second through hole in a penetrating way; the second through hole is arranged on the right side; and a smoke outlet is arranged on the left side of the middle position of the top of the gas heat exchange box.
Further optimizing the technical scheme, a sealing plate is hermetically arranged in the middle of the inside of the gas-heat exchange box in the length direction; horizontal baffles are fixedly arranged on the upper and lower sides of the middle parts of the two ends of the gas heat exchange box; heat accumulators are fixedly arranged at the bottom of the lower horizontal baffle and the top of the upper horizontal baffle; vertical plates are fixedly arranged on the right side of the left end horizontal baffle and the left side of the right end horizontal baffle in a sealing manner; a plurality of stainless steel pipes are fixedly arranged between the vertical plates.
Further optimizing the technical scheme, a fuel gas inlet pipe is fixedly arranged at the rear of the left side of the gas heat exchange box; a fuel gas outlet pipe is fixedly arranged at the rear part of the right side of the gas heat exchange box; the other end of the gas outlet pipe is connected with a gas interface end of the air-fuel mixing chamber; and a mixing proportional valve is arranged at the connecting position of the gas outlet pipe and the air-fuel mixing chamber.
Further optimizing the technical scheme, a combustion-supporting blower is arranged in front of the right side of the gas-heat exchange box; an air connecting pipe is fixedly arranged in front of the left side of the air heat exchange box; the air connecting pipe is connected with an air interface end of the air-fuel mixing chamber.
Further optimizing the technical scheme, the household water storage tank is fixedly arranged inside the gas wall-mounted box furnace between the supporting seat and the combustion chamber; the upper part of the left end of the household water storage tank is communicated with the left end of the combustion chamber through a transition pipe; a household water pipe is arranged below the left end of the household water storage tank; the middle parts of the cold water pipe and the water supply pipe are provided with tee joints; the tee joint on the cold water pipe is communicated with the household water storage tank through a cold water connecting pipe; a multi-position electromagnetic valve is arranged on the water outlet pipe; the multi-position electromagnetic valve is communicated with the tee joint through a water replenishing connecting pipe; the other end of the tee joint on the water supply pipe is connected with the household water storage tank.
Compared with the prior art, the invention has the following advantages:
1. the design of multistage heat accumulation circulating device, the gas is burnt at the combustion chamber and is carried out the primary heating to the inside water of its fin, and the flue gas after the burning carries out the secondary heating to its inside fin when passing through preheating water tank, has realized the effect of the elementary recovery of flue gas heat.
2. The flue gas gets into inside the gas heat exchange box from preheating water tank, and the flue gas can heat gas and combustion-supporting air in the gas heat exchange box, and the initial heat of gas and combustion-supporting air burning is higher to realize the second grade of flue gas heat and retrieve.
3. The flue gas is discharged from the exhaust port at last, and exhaust flue gas heat and nitrogen content are lower to reached energy-concerving and environment-protective effect, solved the flue gas after traditional hanging stove burning and directly discharged the external world, because of the flue gas heat is higher, not only cause the energy extravagant, the nitrogen content is higher when the flue gas heat is too high moreover, discharges the external problem that causes environmental pollution.
4. The arrangement of the household water storage tank can play a role in standby household hot water.
5. Domestic water, when the leaving water temperature of domestic water pipe was too high, the outlet pipe and the moisturizing connecting pipe position of many solenoid valves were closed, when carrying out the moisturizing through the cold water pipe, cold water can get into domestic water storage box through the cold water connecting pipe inside, and cold water and the inside hot water of domestic water storage box mix to make the leaving water temperature of good water service pipe reduce.
6. Non-domestic water, domestic water pipe are closed, and when cold water pipe moisturizing under the water shortage state, mostly be the solenoid valve and open, inside cold water mainly incorporated the outlet pipe through the moisturizing connecting pipe, can prevent that a large amount of cold water from getting into domestic water storage box inside, cause domestic water storage box temperature lower, influence follow-up domestic hot water.
7. The internal diameter of transition pipe is far less than the internal diameter of delivery pipe, and rivers are mainly squeezed into first bar fin through the delivery pipe during heating and are heated inside, and the rivers temperature before the heating is about 26-46 ℃, is applicable to family expenses, and a small amount of rivers can get into domestic water storage box and carry out heat cycle, can guarantee that the temperature is more moderate in the domestic water storage box.
Drawings
Fig. 1 is a schematic diagram of the overall external connection state of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 2 is a schematic view of an internal integral installation structure of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 3 is a schematic diagram of a right side partial installation structure of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 4 is a schematic diagram of a left side partial installation structure of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 5 is a schematic view of a structure for installing a water replenishing part of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 6 is a partial sectional view of a mounting structure inside a combustion chamber of an energy-saving and environment-friendly low-nitrogen gas wall-hanging furnace.
Fig. 7 is a partial sectional view of an internal installation structure of a preheating water tank of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 8 is a schematic view of the bottom structure of a gas-heat exchange box of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 9 is a partial sectional view of an internal mounting structure of a gas heat exchange box of the energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
Fig. 10 is a partial sectional view of an internal mounting structure of a gas heat exchange box of an energy-saving and environment-friendly low-nitrogen gas wall-mounted furnace.
In the figure: 1. a gas wall-mounted box furnace; 101. a hot water pipe; 102. a water return pipe; 2. heating radiators; 3. a multistage heat storage cycle device; 301. a supporting seat; 302. an air-fuel mixing chamber; 303. a combustion chamber; 304. preheating a connecting pipe; 305. a transition duct; 306. a cold water pipe; 307. a cold water connecting pipe; 308. a water replenishing connecting pipe; 309. a domestic water storage tank; 310. an expansion tank; 311. a control box; 312. a water circulating pump; 313. a hybrid junction; 314. gas burning is discharged; 315. preheating a water tank; 316. a gas-heat exchange box; 317. a first separator; 318. a first bar fin; 319. a second separator; 320. a second strip fin; 321. a first through hole; 322. a water inlet pipe; 323. a water supply pipe; 324. a water outlet pipe; 325. a pressure regulating pipe; 326. a second through hole; 327. a smoke outlet; 328. a sealing plate; 329. a horizontal baffle; 330. a heat accumulator; 331. a vertical plate; 332. a stainless steel tube; 333. a gas inlet pipe; 334. a gas outlet pipe; 335. a mixing proportioning valve; 336. a combustion-supporting blower; 337. an air connecting pipe; 338. a household water pipe; 339. a tee joint; 340. a multi-position solenoid valve.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings in conjunction with the following detailed description. It should be understood that the description is intended to be exemplary only, and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
The first embodiment is as follows: as shown in fig. 1-10, the energy-saving environment-friendly low-nitrogen gas wall-hanging furnace is characterized in that: the system comprises a gas wall-mounted box furnace 1, a radiator 2 and a multi-stage heat storage circulating device 3; the bottom of the gas wall-mounted box furnace 1 is provided with a hot water pipe 101 and a water return pipe 102; the hot water pipe 101 is connected with the water return pipe 102 through a plurality of heating radiators 2; the multistage heat storage circulating device 3 is arranged inside the gas wall-mounted box furnace 1; the multistage heat storage circulating device 3 comprises a supporting seat 301, an air-fuel mixing chamber 302, a combustion chamber 303, a preheating connecting pipe 304, a transition pipe 305, a cold water pipe 306, a cold water connecting pipe 307, a water supplementing connecting pipe 308, a household water storage tank 309 and an expansion water tank 310; the supporting seat 301 is fixedly arranged at the bottom end inside the gas wall-mounted box furnace 1; a control box 311 and a circulating water pump 312 are fixedly arranged in the supporting seat 301; the air-fuel mixing chamber 302 is fixedly arranged at the top of the supporting seat 301; the top of the air-fuel mixing chamber 302 is provided with a mixing joint 313; the bottom end in the combustion chamber 303 is provided with a gas combustion row 314; the gas combustion row 314 is connected with the air-fuel mixing chamber 302 through a mixing joint 313; the combustion chamber 303 is fixedly arranged in the gas wall-mounted box furnace 1 above the supporting seat 301; a preheating water tank 315 is fixedly arranged at the top of the combustion chamber 303; the top of the preheating water tank 315 is provided with an air-heat exchange tank 316; the expansion water tank 310 is fixedly arranged at the top of the gas-heat exchange tank 316; a first partition plate 317 is hermetically arranged at each of two ends inside the combustion chamber 303; a first strip-shaped fin 318 is vertically arranged between the two first partition plates 317; the plurality of first bar-shaped fins 318 are uniformly distributed in the length direction of the first partition 317; gaps exist among the first strip-shaped fins 318; two ends of the interior of the preheating water tank 315 are respectively provided with a second clapboard 319 in a sealing way; a second strip-shaped fin 320 is arranged between the two second partition boards 319 in the vertical direction; the plurality of second strip fins 320 are uniformly distributed in the length direction of the second partition 319; gaps exist among the second strip-shaped fins 320; a first through hole 321 is arranged between the top of the combustion chamber 303 and the bottom of the preheating water tank 315 in a penetrating manner; the inlet end of the circulating water pump 312 is provided with a water inlet pipe 322; the water inlet pipe 322 is communicated with the water return pipe 102; a water supply pipe 323 is arranged at the water outlet end of the circulating water pump 312; the other end of the water supply pipe 323 is communicated with the right end of the combustion chamber 303; the left end of the combustion chamber 303 is communicated with the left end of the preheating water tank 315 through a preheating connecting pipe 304; a water outlet pipe 324 and a pressure regulating pipe 325 are respectively arranged on two sides of the middle part of the right end of the preheating water tank 315; the water outlet pipe 324 is communicated with the hot water pipe 101; the other end of the pressure regulating pipe 325 is connected with the expansion water tank 310; the bottom of the gas-heat exchange box 316 and the top of the preheating water tank 315 are provided with a second through hole 326 in a penetrating way; the second through hole 326 is arranged on the right side; a smoke outlet 327 is arranged on the left side of the middle position of the top of the gas heat exchange box 316; a sealing plate 328 is hermetically arranged in the middle of the inside of the gas heat exchange box 316 in the length direction; horizontal baffles 329 are fixedly arranged at the upper and lower sides of the middle part of the two ends of the gas heat exchange box 316; the bottom of the lower horizontal baffle 329 and the top of the upper horizontal baffle 329 are both fixedly provided with a heat accumulator 330; vertical plates 331 are fixedly arranged on the right side of the left end horizontal baffle 329 and the left side of the right end horizontal baffle 329 in a sealing manner; a plurality of stainless steel tubes 332 are fixedly arranged between the vertical plates 331; a gas inlet pipe 333 is fixedly arranged at the rear of the left side of the gas heat exchange box 316; a gas outlet pipe 334 is fixedly arranged at the rear part of the right side of the gas heat exchange box 316; the other end of the gas outlet pipe 334 is connected with a gas interface end of the air-fuel mixing chamber 302; a mixing proportional valve 335 is arranged at the connecting position of the gas outlet pipe 334 and the air-fuel mixing chamber 302; a combustion-supporting blower 336 is arranged in front of the right side of the gas-heat exchange box 316; an air connecting pipe 337 is fixedly arranged in front of the left side of the air heat exchange box 316; the air connecting pipe 337 is connected with an air interface end of the air-fuel mixing chamber 302; the household water storage tank 309 is fixedly arranged inside the gas wall-mounted box furnace 1 between the supporting base 301 and the combustion chamber 303; the upper part of the left end of the household water storage tank 309 is communicated with the left end of the combustion chamber 303 through a transition pipe 305; a household water pipe 338 is arranged below the left end of the household water storage tank 309; the middle parts of the cold water pipe 306 and the water supply pipe 323 are provided with tee joints 339; the tee joint 339 on the cold water pipe 306 is communicated with the household water storage tank 309 through a cold water connecting pipe 307; a multi-position electromagnetic valve 340 is arranged on the water outlet pipe 324; the multi-position solenoid valve 340 is communicated with the tee joint 339 through a water replenishing connecting pipe 308; the other end of the tee 339 on the water supply pipe 323 is connected with the domestic water storage tank 309.
In use, step one, as shown in fig. 1-6, in normal operation, the combustion chamber 303 operates: the gas combustion row 314 is combusted at the bottom of the combustion chamber 303, and flame generated during gas combustion heats a first strip-shaped fin 318 inside the combustion chamber 303; because' the inlet end of the circulating water pump 312 is provided with the water inlet pipe 322; the water inlet pipe 322 is communicated with the water return pipe 102', so that the water in the heating water return pipe 102 is pumped out by the circulating water pump 312 and then is pumped into the combustion chamber 303 through the water supply pipe 323, and the two ends in the combustion chamber 303 are provided with the first partition plates 317 in a sealing way; a first strip-shaped fin 318 is vertically arranged between the two first partition plates 317; the plurality of first strip fins 318 are uniformly distributed in the length direction of the first partition 317, so that water is driven into the first strip fins 318 through the water supply pipe 323, and the water is heated in the first strip fins 318 and then moved into the preheating water tank 315 through the preheating connection pipe 304 at the left end.
High-temperature flue gas is generated in the process of heating and burning the fuel gas, the high-temperature flue gas rises upwards, the existing wall-mounted furnace is not provided with a flue gas heat recovery system, and the discharged flue gas has high heat and high nitrogen content, so that the environmental pollution and the energy waste are caused; according to the design of the device, when the high-temperature flue gas rises, the first through hole 321' is arranged between the top of the combustion chamber 303 and the bottom of the preheating water tank 315 in a penetrating manner, so that the high-temperature flue gas can enter the preheating water tank 315 from the combustion chamber 303 through the first through hole 321.
Step two, as shown in fig. 7, during normal operation, the working process of the preheating water tank 315 is as follows: because' both ends of the interior of the preheating water tank 315 are hermetically provided with the second partition plate 319; a second strip-shaped fin 320 is arranged between the two second partition boards 319 in the vertical direction; the plurality of second bar-shaped fins 320 are uniformly distributed in the length direction of the second partition 319, so that the primarily heated hot water enters from the left side of the preheating water tank 315, then moves to the right side of the preheating water tank 315 through the second bar-shaped fins 320, and finally is discharged from the water outlet pipe 324, because the water outlet pipe 324 is communicated with the hot water pipe 101, the hot water discharged from the water outlet pipe 324 enters into the hot water pipe 101, the hot water pipe 101 and the water return pipe 102 are connected through the plurality of radiators 2, and a circulation loop is formed among the water return pipe 102, the water supply pipe 323, the water outlet pipe 324 and the hot water pipe 101.
When the high-temperature flue gas moves upwards in the preheating water tank 315, the water in the second strip-shaped fins 320 is heated, so that the effect of primarily recovering the heat of the high-temperature flue gas is realized.
Because the bottom of the gas-heat exchange box 316 and the top of the preheating water tank 315 are provided with the second through holes 326', the hot flue gas of the primary heat exchange enters the gas-heat exchange box 316 from the preheating water tank 315 through the second through holes 326 at the bottom of the right side.
Step three, as shown in fig. 8-10, during normal operation, the gas heat exchange box 316 works: the hot flue gas of the preliminary heat exchange moves upwards and leftwards when entering the gas-heat exchange box 316 from the right side at the bottom; because the left side of the middle position of the top of the gas heat exchange box 316 is provided with the smoke outlet 327', the smoke is finally discharged through the smoke outlet 327.
The sealing plate 328 is hermetically provided at the middle position inside the gas heat exchange box 316 in the longitudinal direction; horizontal baffles 329 are fixedly arranged at the upper and lower sides of the middle part of the two ends of the gas heat exchange box 316; the bottom of the lower horizontal baffle 329 and the top of the upper horizontal baffle 329 are both fixedly provided with a heat accumulator 330; vertical plates 331 are fixedly arranged on the right side of the left end horizontal baffle 329 and the left side of the right end horizontal baffle 329 in a sealing manner; a plurality of stainless steel pipes 332' are fixedly arranged between the vertical plates 331, so that the flue gas firstly passes through the heat accumulator 330 below when moving upwards, and the heat accumulator 330 below exchanges heat with the heat of the flue gas for storage; then, the flue gas continuously rises and moves to the upper heat accumulator 330 through the stainless steel pipe 332, and the upper heat accumulator 330 and the flue gas are again subjected to heat exchange storage, so that the heat of the flue gas discharged from the smoke outlet 327 is low.
The gas absorbs heat by vaporization, so the temperature of the gas is very low when the gas is supplied, and a gas inlet pipe 333 is fixedly arranged at the rear of the left side of the gas heat exchange box 316; a gas outlet pipe 334 is fixedly arranged at the rear part of the right side of the gas heat exchange box 316; the other end of the gas outlet pipe 334 is connected with the gas interface end of the air-fuel mixing chamber 302', so that when gas enters the gas-heat exchange box 316 through the gas inlet pipe 333, the gas passes through the inside of the stainless steel pipe 332 behind the sealing plate 328, when hot flue gas passes through the stainless steel pipe 332, the hot flue gas exchanges heat with cold gas, so that the cold gas is heated, and the heated gas enters the air-fuel mixing chamber through the gas outlet pipe 334 to supply gas.
The combustion-supporting blower 336 is arranged in front of the right side of the gas-heat exchange box 316; an air connecting pipe 337 is fixedly arranged in front of the left side of the air heat exchange box 316; the air connection pipe 337 is connected to an air connection port of the air-fuel mixing chamber 302, so that when the combustion fan 336 is operated, the cold air from the outside is injected into the stainless steel pipe 332 in front of the sealing plate 328 inside the air-heat exchange box 316, and the cold air exchanges heat with the hot flue gas inside the stainless steel pipe 332, so that the heat of the air coming out from the air connection pipe 337 at the left end of the air-heat exchange box 316 is high, and the hot air at the heating port enters the air-fuel mixing chamber 302 through the air connection pipe 337 to supply air.
In conclusion, with the design of the multi-stage heat storage circulating device 3, the gas is combusted in the combustion chamber 303 to primarily heat the water in the fins, and the combusted flue gas passes through the preheating water tank 315 to secondarily heat the fins in the combustion chamber, so that the primary recovery effect of the heat of the flue gas is realized; the flue gas enters the gas-heat exchange box 316 from the preheating water tank 315, the flue gas can heat fuel gas and combustion-supporting air in the gas-heat exchange box 316, and the initial heat of combustion of the fuel gas and the combustion-supporting air is high, so that secondary recovery of the heat of the flue gas is realized; finally, the flue gas is discharged from the smoke outlet 327, and the heat and the nitrogen content of the discharged flue gas are low, so that the effects of energy conservation and environmental protection are achieved, and the problems that the flue gas after combustion of the traditional wall-mounted furnace is directly discharged to the outside, energy waste is caused due to high heat of the flue gas, and the nitrogen content is high when the heat of the flue gas is too high and the flue gas is discharged to the outside to cause environmental pollution are solved.
Step four, with reference to fig. 1-10, the arrangement of the household water storage tank 309 can play a role of standby household hot water; the inner diameter of the transition pipe 305 is far smaller than that of the water supply pipe 323, water flow is mainly driven into the first strip-shaped fin 318 through the water supply pipe 323 for heating during heating, the temperature of the water flow before heating is about 26-46 ℃, the transition pipe is suitable for household use, a small amount of water flow can enter the household water storage tank 309 for heat circulation, and the temperature in the household water storage tank 309 can be ensured to be moderate; when the household water pipe 338 is opened, the hot water in the household water storage tank 309 can be discharged through the household water pipe 338; at the moment, the cold water pipe 306 starts water replenishing under the control of the pressure sensor and the control system, the connection position of the electromagnetic valve and the water replenishing connecting pipe 308 is mostly opened, and as the inner diameter of the cold water connecting pipe 307 is far smaller than that of the household water pipe 338, the water replenishing cold water is merged into the water outlet pipe 324 through the household water pipe 338; a large amount of cold water can be prevented from entering the household water storage tank 309, so that the water temperature of the household water storage tank 309 is low, and subsequent household hot water is influenced; the principle of non-domestic water is the same. The household water pipe 338 is closed, and when the cold water pipe 306 is replenished with water under the water shortage state, most of the cold water pipe is opened by an electromagnetic valve, and cold water is mainly merged into the water outlet pipe 324 through the water replenishing connecting pipe 308.
For domestic water, when the outlet water temperature of the domestic water pipe 338 is high, the outlet pipe 324 of the multi-position electromagnetic valve 340 and the water replenishing connection pipe 308 are closed, when water is replenished through the cold water pipe 306, cold water can enter the domestic water storage tank 309 through the cold water connection pipe 307, and the cold water is mixed with hot water in the domestic water storage tank 309, so that the outlet water temperature of the water pipe is reduced.
The control mode of the invention is automatically controlled by the controller, the control circuit of the controller can be realized by simple programming of a person skilled in the art, the invention belongs to the common knowledge in the field, and the invention is mainly used for protecting mechanical devices, so the control mode and the circuit connection are not explained in detail in the invention.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (9)
1. The utility model provides an energy-concerving and environment-protective type low nitrogen gas hanging stove which characterized in that: comprises a gas wall-mounted box furnace (1), a radiator (2) and a multi-stage heat storage circulating device (3); the bottom of the gas wall-mounted box furnace (1) is provided with a hot water pipe (101) and a water return pipe (102); the hot water pipe (101) is connected with the water return pipe (102) through a plurality of heating radiators (2); the multistage heat storage circulating device (3) is arranged inside the gas wall-mounted box furnace (1); the multi-stage heat storage circulating device (3) comprises a supporting seat (301), an air-fuel mixing chamber (302), a combustion chamber (303), a preheating connecting pipe (304), a transition pipe (305), a cold water pipe (306), a cold water connecting pipe (307), a water replenishing connecting pipe (308), a household water storage tank (309) and an expansion water tank (310); the supporting seat (301) is fixedly arranged at the bottom end inside the gas wall-mounted box furnace (1); a control box (311) and a circulating water pump (312) are fixedly arranged in the supporting seat (301); the air-fuel mixing chamber (302) is fixedly arranged at the top of the supporting seat (301); the top of the air-fuel mixing chamber (302) is provided with a mixing joint (313); a gas burning row (314) is arranged at the bottom end in the combustion chamber (303); the gas combustion row (314) is connected with the air-fuel mixing chamber (302) through a mixing joint (313); the combustion chamber (303) is fixedly arranged in the gas wall-hanging box furnace (1) above the supporting seat (301); a preheating water tank (315) is fixedly arranged at the top of the combustion chamber (303); the top of the preheating water tank (315) is provided with an air-heat exchange tank (316); the expansion water tank (310) is fixedly arranged at the top of the gas-heat exchange tank (316).
2. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: two ends of the interior of the combustion chamber (303) are respectively provided with a first clapboard (317) in a sealing way; a first strip-shaped fin (318) is arranged between the two first partition plates (317) in the vertical direction; the plurality of first strip fins (318) are uniformly distributed in the length direction of the first partition plate (317); gaps exist among the first strip-shaped fins (318); two ends of the interior of the preheating water tank (315) are respectively provided with a second clapboard (319) in a sealing way; a second strip-shaped fin (320) is arranged between the two second partition plates (319) in the vertical direction; the plurality of second strip-shaped fins (320) are uniformly distributed in the length direction of the second separator (319); gaps exist among the second strip-shaped fins (320).
3. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a first through hole (321) is arranged between the top of the combustion chamber (303) and the bottom of the preheating water tank (315) in a penetrating manner.
4. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a water inlet pipe (322) is arranged at the inlet end of the circulating water pump (312); the water inlet pipe (322) is communicated with the water return pipe (102); a water supply pipe (323) is arranged at the water outlet end of the circulating water pump (312); the other end of the water supply pipe (323) is communicated with the right end of the combustion chamber (303); the left end of the combustion chamber (303) is communicated with the left end of the preheating water tank (315) through a preheating connecting pipe (304); a water outlet pipe (324) and a pressure regulating pipe (325) are respectively arranged on two sides of the middle part of the right end of the preheating water tank (315); the water outlet pipe (324) is communicated with the hot water pipe (101); the other end of the pressure regulating pipe (325) is connected with an expansion water tank (310).
5. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a second through hole (326) is arranged at the bottom of the gas-heat exchange box (316) and the top of the preheating water tank (315) in a penetrating way; the second through hole (326) is disposed on the right side; and a smoke outlet (327) is arranged on the left side of the middle position of the top of the gas heat exchange box (316).
6. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a sealing plate (328) is hermetically arranged in the middle of the inside of the gas heat exchange box (316) in the length direction; horizontal baffles (329) are fixedly arranged on the upper and lower sides of the middle part of the two ends of the gas heat exchange box (316); the bottom of the lower horizontal baffle (329) and the top of the upper horizontal baffle (329) are both fixedly provided with a heat accumulator (330); vertical plates (331) are fixedly arranged on the right side of the left end horizontal baffle (329) and the left side of the right end horizontal baffle (329) in a sealing way; a plurality of stainless steel pipes (332) are fixedly arranged between the vertical plates (331).
7. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a gas inlet pipe (333) is fixedly arranged at the rear of the left side of the gas heat exchange box (316); a fuel gas outlet pipe (334) is fixedly arranged at the rear part of the right side of the gas-heat exchange box (316); the other end of the gas outlet pipe (334) is connected with a gas interface end of the air-fuel mixing chamber (302); and a mixing proportional valve (335) is arranged at the connecting position of the gas outlet pipe (334) and the air-fuel mixing chamber (302).
8. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 1, characterized in that: a combustion-supporting blower (336) is arranged in front of the right side of the gas-heat exchange box (316); an air connecting pipe (337) is fixedly arranged in front of the left side of the air heat exchange box (316); and the air connecting pipe (337) is connected with an air interface end of the air-fuel mixing chamber (302).
9. The energy-saving environment-friendly low-nitrogen gas wall-hanging furnace as claimed in claim 4, characterized in that: the household water storage tank (309) is fixedly arranged inside the gas wall-mounted box furnace (1) between the support base (301) and the combustion chamber (303); the upper part of the left end of the household water storage tank (309) is communicated with the left end of the combustion chamber (303) through a transition pipe (305); a household water pipe (338) is arranged below the left end of the household water storage tank (309); the middle parts of the cold water pipe (306) and the water supply pipe (323) are provided with tee joints (339); the tee joint (339) on the cold water pipe (306) is communicated with the household water storage tank (309) through a cold water connecting pipe (307); a multi-position electromagnetic valve (340) is arranged on the water outlet pipe (324); the multi-position solenoid valve (340) is communicated with the tee joint (339) through a water replenishing connecting pipe (308); the other end of the tee joint (339) on the water supply pipe (323) is connected with the household water storage tank (309).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911062194.7A CN110793192A (en) | 2019-11-02 | 2019-11-02 | Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911062194.7A CN110793192A (en) | 2019-11-02 | 2019-11-02 | Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace |
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| CN110793192A true CN110793192A (en) | 2020-02-14 |
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| CN201911062194.7A Pending CN110793192A (en) | 2019-11-02 | 2019-11-02 | Energy-saving environment-friendly low-nitrogen gas wall-mounted furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111520903A (en) * | 2020-05-19 | 2020-08-11 | 杭州中荷智慧城市科技有限公司 | Waste heat recovery type household wall-mounted furnace |
| CN113623860A (en) * | 2021-08-23 | 2021-11-09 | 广东永焰电气科技有限责任公司 | Heat exchange and gas water heater with anti-corrosion function |
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Application publication date: 20200214 |
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