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CN-116951756-B - Gas water heater

CN116951756BCN 116951756 BCN116951756 BCN 116951756BCN-116951756-B

Abstract

The invention relates to a gas water heater, which comprises a combustion assembly, a heat exchange assembly and an atomization assembly, wherein the combustion assembly comprises an inner shell, an outer shell and a burner, a combustion cavity is arranged in the inner shell, the burner is arranged below the inner shell, the heat exchange assembly is arranged above the inner shell, the outer shell surrounds the periphery of the inner shell, the outer shell and the inner shell are spaced, a closed cooling channel is formed between the outer shell and the inner shell and is communicated with the combustion cavity, one side of the outer shell is provided with the atomization assembly, and the atomization assembly is connected with the cooling channel and a condensate pipe of the heat exchange assembly and is used for atomizing condensate water in the condensate pipe and then conveying the condensate water to the cooling channel. The gas water heater can atomize the condensed water generated by the heat exchange assembly, then convey the atomized condensed water into the cooling channel, exchange heat between the outer shell and the inner shell, reduce the temperature of the outer shell and the inner shell, enable part of atomized condensed water to enter the combustion cavity from the cooling channel, absorb heat in the combustor and evaporate, thereby reducing the combustion temperature of the combustor and generating less polluted gas.

Inventors

  • LU YUXUAN
  • LI XINXUE
  • SUN YINGKAI

Assignees

  • 广东万和新电气股份有限公司

Dates

Publication Date
20260505
Application Date
20220815

Claims (9)

  1. 1. The gas water heater comprises a combustion assembly (1) and a heat exchange assembly (2), wherein the combustion assembly (1) comprises an inner shell (11) and a combustor (12), a combustion cavity (13) is arranged in the inner shell (11), the combustor (12) is arranged below the inner shell (11), and the heat exchange assembly (2) is arranged above the inner shell (11), and the gas water heater is characterized in that the combustion assembly (1) further comprises an outer shell (14), the outer shell (14) surrounds the periphery of the inner shell (11), a closed cooling channel (15) is formed between the outer shell (14) and the inner shell (11) at intervals, the cooling channel (15) is communicated with the combustion cavity (13), an atomization assembly (3) is arranged on one side of the outer shell (14), and the atomization assembly (3) is connected with a condensation water pipe (21) of the cooling channel (15) and the heat exchange assembly (2) and is used for conveying condensate water in the condensation water pipe (21) to the cooling channel (15) after being atomized; a plurality of first through holes (111) are formed in the inner shell (11) at intervals, and the combustion cavity (13) is communicated with the cooling channel (15) through the first through holes (111).
  2. 2. A gas water heater according to claim 1, wherein a second through hole (141) is provided in the housing (14), the atomizing assembly (3) communicates with the cooling channel (15) through the second through hole (141), the second through hole (141) is adjacent to the bottom of the cooling channel (15), and the first through hole (111) is located above the second through hole (141).
  3. 3. Gas water heater according to claim 2, characterized in that the first through hole (111) is adjacent to the top of the cooling channel (15).
  4. 4. A gas water heater according to claim 2, wherein the atomizing assembly (3) comprises a housing (31) for water, an atomizing generator (32) being provided in the housing (31), the housing (31) being provided with an inlet (311) and an outlet (312), the inlet (311) being in communication with the condensate water pipe (21), the outlet (312) being in communication with the second through hole (141).
  5. 5. A gas water heater according to claim 2, wherein the atomizing assembly (3) comprises an atomizing generator (32), the atomizing generator (32) being in communication with the condensate pipe (21) and the second through hole (141), respectively.
  6. 6. A gas water heater according to claim 4 or 5, wherein the atomizing assembly (3) further comprises a neutralization member (33), the neutralization member (33) being located between the atomizing generator (32) and the condensate water pipe (21) for neutralizing the condensate water.
  7. 7. Gas water heater according to any one of claims 1 to 5, wherein the inner casing (11) comprises a plurality of first side plates (112) arranged at an included angle, all the first side plates (112) are connected at first positions to form the annular inner casing (11), the outer casing (14) comprises a plurality of second side plates (142) arranged at an included angle, all the second side plates (142) are connected at first positions to form the annular outer casing (14), the first side plates (112) are connected with the second side plates (142), each first side plate (112) and/or each second side plate (142) is/are concavely provided with a convex hull (4) facing away from each other, so that independent cavities (151) are formed between the first side plates (112) and the second side plates (142), a connecting channel (152) is arranged at the connecting position of the first side plates (112) and the second side plates (142), and two adjacent cavities (151) are communicated through the connecting channel (152) to form the cooling channel (15).
  8. 8. The gas water heater according to claim 7, wherein the communication channel (152) has a narrow mouth portion (1521) and two tapered portions (1522), the two tapered portions (1522) being located on the two connected first side plates (112) and/or the two second side plates (142), respectively, the narrow mouth portion (1521) being located at the junction of the two first side plates (112) and/or the two second side plates (142), the tapered portions (1522) having a cross-sectional area larger than that of the narrow mouth portion (1521).
  9. 9. The gas water heater according to claim 8, wherein a cross-sectional area of an end of the tapered portion (1522) connected to the narrow mouth portion (1521) gradually increases toward an end of the tapered portion (1522) distant from the narrow mouth portion (1521).

Description

Gas water heater Technical Field The invention relates to the technical field of water heating equipment, in particular to a gas water heater. Background With the continuous improvement of the living standard of people, the water heater becomes an indispensable important household appliance in daily life. The heat exchange area of the current condensing gas water heater is mainly formed by a main heat exchanger and a condenser, gas and air are fully mixed and then enter a combustor for combustion, high-temperature flue gas generated by combustion sequentially passes through the main heat exchanger and the condenser under the action of a fan, and the flue gas is discharged through an exhaust pipe after heat exchange. The prior art has the defects that 1) exhaust modes adopted by water heaters of different types are different, so that the arrangement modes of exhaust pipes are different, condensed water is easy to discharge inconveniently due to the arrangement differences of the exhaust pipes or the attractive consideration during the home decoration of part of users, 2) the condensing gas water heater belongs to an exhaust forced-air structure, has strong combustion and high combustion temperature, is easy to generate excessive nitrogen oxides in the combustion process, and the higher the combustion temperature is, the faster the generation rate of the nitrogen oxides is, the more nitrogen oxides are generated, the high combustion temperature also can improve the surface temperature of a combustion chamber shell, and the electronic components near the combustion chamber shell are easy to be damaged due to the overhigh temperature of the combustion chamber shell. Disclosure of Invention The invention aims to provide a gas water heater which can effectively reduce the temperature of a combustion chamber shell and the combustion temperature of a combustor and solve the problem of inconvenient discharge of condensed water. The technical problems are solved by the following technical scheme: The utility model provides a combustor device, including combustion module and heat exchange assembly, combustion module includes inner shell and combustor, be provided with the combustion chamber in the inner shell, the combustor sets up the below of inner shell, the heat exchange assembly sets up the top of inner shell, combustion module still includes the shell, the shell encircles the periphery of inner shell, the shell with the inner shell interval forms inclosed cooling channel between the two, cooling channel with the combustion chamber intercommunication, one side of shell is provided with atomizing subassembly, atomizing subassembly connects cooling channel with heat exchange assembly's condenser water pipe is used for with behind the condensate water atomization in the condenser water pipe carry to cooling channel. Compared with the background technology, the combustion chamber device has the advantages that high-temperature flue gas produced by combustion of the burner can flow from bottom to top along a flue and exchange heat with the heat exchange component, condensed water is generated, can flow out of a condensed water pipe of the heat exchange component, can flow to a cooling channel after being atomized by the atomization component, exchanges heat with the inner shell and the outer shell, so that the temperature of the inner shell and the outer shell is reduced, the electronic elements adjacent to the outer side of the combustion component are prevented from being damaged due to overhigh temperature of the inner shell and the outer shell, and meanwhile, part of atomized condensed water can flow to the combustion chamber through the cooling channel. In one embodiment, a plurality of first through holes are formed in the inner shell at intervals, and the combustion cavity is communicated with the cooling channel through the first through holes. In one embodiment, a second through hole is formed in the housing, the atomizing assembly is communicated with the cooling channel through the second through hole, the second through hole is adjacent to the bottom of the cooling channel, and the first through hole is located above the second through hole. In one embodiment, the atomizing assembly includes a housing, the first through hole being adjacent to a top of the cooling channel. In one embodiment, the atomizing assembly comprises a water storage housing, an atomization generator is arranged in the water storage housing, an inlet and an outlet are arranged in the water storage housing, the inlet is communicated with the condensate pipe, and the outlet is communicated with the second through hole. In one embodiment, the atomizing assembly includes an atomizing generator in communication with the condensate line and the second through bore, respectively. In one embodiment, the atomizing assembly further comprises a neutralization member located between the atomizing generator and the condensate water pipe for neutra