CN218511181U - Gas water heater - Google Patents

Abstract

The utility model relates to a gas water heater, including combustion assembly, heat exchange assembly, discharge fume the pipe, atomization component and discharge line, combustion assembly includes combustion chamber and combustor, the combustor sets up in the combustion chamber below, heat exchange assembly includes main heat exchanger and condenser, main heat exchanger sets up the top at the combustion chamber, be provided with the collection petticoat pipe between main heat exchanger and the condenser, discharge fume pipe and condenser intercommunication, a flue gas for discharging, discharge line includes first pipeline and second pipeline, first pipeline sets up in the combustor, first pipeline is provided with a plurality of fog mouths, the export of first tube coupling second pipeline and atomization component, the one end and collection petticoat pipe and/or the pipe intercommunication of discharging fume that first pipeline was kept away from to the second pipeline. The utility model discloses a gas heater passes through the discharge line after atomizing the condensate water and discharges, not only can reduce the combustion temperature of combustor, restraines nitrogen oxide's formation, can discharge atomizing comdenstion water to the cooling of collection petticoat pipe simultaneously.

Description

Gas water heater

Technical Field

The utility model relates to hot water equipment technical field especially relates to a gas heater.

Background

With the continuous improvement of the living standard of people, the gas water heater becomes an indispensable important household appliance in daily life. When the gas water heater works, smoke generated after gas combustion contains nitrogen oxides and other pollution gases, and the higher the combustion temperature is, the more the generated nitrogen oxides are.

And the flue gas temperature of emission also reaches 180 ℃, and present gas heater adopts the heat that condensation heat transfer device absorbed the flue gas in order to preheat cold water for gas heater's the higher thermal efficiency that has, can form the comdenstion water behind the flue gas heat transfer simultaneously, and discharge through the drain pipe, but nitrogen oxide can be dissolved in the comdenstion water, makes the comdenstion water have certain corrosivity, directly causes the pollution with the comdenstion water discharge easily, has increased the emission degree of difficulty of comdenstion water.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the utility model is to provide a gas water heater, it can reduce the combustion temperature of flame and the emission degree of difficulty of comdenstion water effectively.

The technical problem is solved by the following technical scheme:

the utility model provides a gas water heater, includes combustion assembly, heat exchange assembly, discharge fume pipe, atomization component and discharge line, combustion assembly includes combustion chamber and combustor, the combustor sets up the combustion chamber below, heat exchange assembly includes main heat exchanger and condenser, main heat exchanger sets up the top of combustion chamber, main heat exchanger with be provided with the collection petticoat pipe between the condenser, discharge fume the pipe with the condenser intercommunication for the exhaust flue gas, atomization component's import with condenser intercommunication, discharge line includes first pipeline and second pipeline, first pipeline sets up in the combustor, first pipeline is provided with a plurality of fog mouths, first tube coupling the second pipeline with atomization component's export, the second pipeline is kept away from the one end of first pipeline with collection petticoat pipe and/or discharge fume the pipe intercommunication.

Compared with the prior art, the gas water heater has the advantages that: flue gas that the combustor burning produced can get into the condenser behind the primary heat transfer and carry out the secondary heat transfer by main heat exchanger, in order to preheat cold water, the flue gas heat transfer forms the comdenstion water simultaneously, the comdenstion water can be carried to first pipeline after the atomizing water through atomization component atomizing, partial atomizing hydroenergy flows into in the combustor through a fog outlet, can reduce the combustion temperature of combustor, thereby restrain nitrogen oxide's formation, reduce nitrogen oxide's emission, partial atomizing water can flow through the second pipeline from first pipeline and get into collection petticoat pipe and/or discharge fume pipe discharge, realize the emission of comdenstion water, and can absorb the heat of collection petticoat pipe when flowing through collection petticoat pipe, reduce the temperature of collection petticoat pipe.

In one embodiment, the burner comprises a shell and a plurality of fire rows arranged in the shell at intervals, the first pipeline comprises a plurality of conveying branches, and the conveying branches are arranged on two opposite sides of each fire row in the width direction.

In one embodiment, the length of the conveying branch extends along the length direction of the fire grate and is adjacent to the combustion area of the fire grate, and a plurality of mist outlet openings are arranged at intervals along the length direction of the conveying branch and face the combustion area of the fire grate.

In one embodiment, the steam distribution box is provided with a first air inlet and a plurality of first air outlets, the steam collection box is provided with a second air outlet and a plurality of second air inlets, the number of the first air outlets and the number of the second air inlets are equal to the number of the conveying branches, the first air outlets and the second air inlets are in one-to-one correspondence, one end of each conveying branch is communicated with the first air outlet, and the other end of each conveying branch is communicated with the second air inlet.

In one embodiment, the housing includes two first side walls and two second side walls, the two first side walls are disposed oppositely along a length direction of the conveying branch, the two second side walls are disposed oppositely along a spacing direction of the conveying branch, the first air inlet and the second air outlet are respectively disposed at outer sides of the two first side walls, the first air inlet is adjacent to one of the second side walls, and the second air outlet is adjacent to the other of the second side walls.

In one embodiment, the atomizing assembly comprises a water storage shell and a partition board, the partition board divides the water storage shell into a first cavity and a second cavity, a neutralizing part is arranged in the first cavity, an atomizing generator is arranged in the second cavity, the first cavity is communicated with a condensate pipe of the condenser, the atomizing generator is connected with the first pipeline, and a water passing hole is formed in the partition board so that condensed water can flow from the first cavity into the second cavity.

In one embodiment, the partition plate is provided with a water through hole adjacent to the top, and the condensed water in the first chamber flows into the second chamber after reaching the water through hole.

In one embodiment, the water replenishing device further comprises a controller and a water replenishing pipe, wherein the water replenishing pipe is communicated with an external water source, the first chamber is communicated with the water replenishing pipe through a water diversion pipe, and the water diversion pipe is provided with a control valve which is connected with the controller and used for controlling the opening degree of the control valve.

In one embodiment, the fuel gas burner further comprises a temperature sensor and a liquid level sensor, wherein the temperature sensor is arranged on the burner and used for detecting the combustion temperature of the burner, the liquid level sensor is arranged in the first cavity and is adjacent to the water through hole, and the temperature sensor and the liquid level sensor are connected with the controller.

In one embodiment, a fan assembly is arranged between the fume collecting hood and the condenser, and the fan assembly is used for discharging the fume of the main heat exchanger to the condenser.

Drawings

Fig. 1 is a schematic structural diagram of a gas water heater according to an embodiment of the present invention;

FIG. 2 is an assembled top view of a discharge line of a gas water heater according to an embodiment of the present invention;

FIG. 3 is an exploded view of the discharge line of the gas water heater according to the embodiment of the present invention;

fig. 4 is an assembled perspective view of a discharge pipe of a gas water heater according to an embodiment of the present invention;

fig. 5 is a cross-sectional view of the atomizing assembly of the gas water heater according to the embodiment of the present invention.

In the figure:

1. a combustion assembly; 11. a combustion chamber; 12. a burner; 121. a housing; 1211. a first side wall; 1212. a second side wall; 122. fire grate; 2. a heat exchange assembly; 21. a primary heat exchanger; 22. a condenser; 3. a smoke exhaust pipe; 4. an atomizing assembly; 41. a water storage housing; 411. a first chamber; 412. a second chamber; 42. a partition plate; 421. water passing holes; 43. a neutralizing component; 44. an atomization generator; 45. a water conduit; 46. an inlet; 47. an outlet; 5. a smoke collecting hood; 6. a discharge line; 61. a first pipeline; 611. a mist outlet; 612. a delivery branch; 62. a second pipeline; 7. a steam distribution box; 71. a first air inlet; 72. a first air outlet; 8. a steam collection box; 81. a second air outlet; 82. a second air inlet; 9. a controller; 10. a fan assembly.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

In the description of the present application, it is to be understood that the terms "upper", "lower", "top", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present application.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless otherwise specified.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "communicate" and "connect" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

As shown in fig. 1 to 4, an embodiment of the present invention provides a gas water heater, including combustion assembly 1, heat exchange assembly 2, smoke exhaust pipe 3, atomization assembly 4, discharge pipeline 6, combustion assembly 1 includes combustion chamber 11 and combustor 12, combustor 12 is disposed below combustion chamber 11, heat exchange assembly 2 includes main heat exchanger 21 and condenser 22, heat exchange assembly 2 is disposed above combustion chamber 11, be provided with smoke exhaust collecting hood 5 between main heat exchanger 21 and condenser 22, smoke exhaust pipe 3 and condenser 22 communicate, the condensate pipe of condenser 22 communicates with inlet 46 of atomization assembly 4, discharge pipeline 6 includes first pipeline 61 and second pipeline 62, first pipeline 61 is disposed in combustor 12, first pipeline 61 is provided with a plurality of fog outlet 611, first pipeline 61 connects second pipeline 62 and outlet 47 of atomization assembly 4, the one end of second pipeline 62 far away from first pipeline 61 communicates with smoke exhaust collecting hood and 5/or smoke exhaust pipe 3.

The combustion chamber 11, the main heat exchanger 21, the smoke collecting hood 5, the condenser 22 and the smoke exhaust pipe 3 are sequentially communicated and form a smoke exhaust channel, smoke generated by combustion of the burner 12 can enter the condenser 22 for secondary heat exchange after primary heat exchange of the main heat exchanger 21, cold water is preheated, then the smoke exhaust pipe 3 is exhausted outdoors, meanwhile, the smoke exchanges heat in the condenser 22 to generate condensed water, the condensed water can form atomized water through the atomizing assembly 4 and is conveyed to the first pipeline 61, part of the atomized water can flow into the burner 12 through the smoke outlet 611, the combustion temperature of the burner 12 can be reduced, generation of nitrogen oxide is inhibited, emission of the nitrogen oxide is reduced, part of the atomized water can flow into the smoke collecting hood 5 and/or the smoke exhaust pipe 3 from the first pipeline 61 through the second pipeline 62, emission of the condensed water is achieved, heat of the smoke collecting hood 5 can be absorbed in the process of the atomized water, and the temperature of the smoke collecting hood 5 is reduced.

The particle size of the water drops of the atomized water is smaller, the atomized water is more uniform in distribution and wider in distribution range, so that the combustion temperature of the combustor 12 can be gradually reduced without sudden temperature change, the combustion temperature of the combustor 12 is more uniform and consistent, and the generation of nitrogen oxides is reduced; and the atomized water dispersed in the combustor 12 can absorb the kinetic energy generated by combustion, which is beneficial to reducing the noise caused by combustion turbulence pulsation.

Note that an arrow without a reference numeral in the drawing indicates a discharge direction of the condensed water.

Illustratively, the fan assembly 10 is disposed between the fume collecting hood 5 and the condenser 22, the fan assembly 10 is activated to generate a negative pressure to draw the flue gas from the combustion chamber 11 into the condenser 22, and the atomized water is also activated by the negative pressure to partially flow through the first pipe 61 into the burner 12 and partially flow through the first pipe 61 and the second pipe 62 to the fume collecting hood 5.

Specifically, the combustor 12 includes a housing 121 and a plurality of fire banks 122 arranged at intervals in the housing 121, the first pipeline 61 includes a plurality of conveying branches 612, and each fire bank 122 is provided with the conveying branches 612 on two opposite sides in the width direction. Atomized water can be conveyed to each fire row 122 along each conveying branch 612, so that the combustion temperature of the fire rows 122 is reduced, the combustion temperature of the fire rows 122 is more uniform, and local high temperature can be prevented.

Further, the length of the conveying branch 612 extends along the length direction of the fire row 122, the conveying branch 612 is provided with a plurality of mist outlets 611 at intervals along the length direction, and the mist outlets 611 all face the combustion area of the fire row 122. The atomized water is able to flow uniformly through the mist outlet 611 to the combustion area of each fire bank 122, further making the combustion temperature of all fire banks 122 more uniform.

The size of the mist outlet 611 can be designed according to actual requirements, so as to control the proportion of the atomized water in the delivery branch 612 flowing to the burner 12 and the fume collecting hood 5.

Illustratively, the gas water heater further comprises a steam separating box 7 and a steam collecting box 8, wherein the steam separating box 7 is provided with a first air inlet 71 and a plurality of first air outlets 72, the steam collecting box 8 is provided with a second air outlet 81 and a plurality of second air inlets 82, the number of the first air outlets 72 and the number of the second air inlets 82 are equal to the number of the conveying branches 612, and the first air outlets 72 and the second air inlets 82 are in one-to-one correspondence, so that one end of each conveying branch 612 can be communicated with the first air outlet 72, and the other end of each conveying branch 612 is communicated with the second air inlets 82. Atomized water can enter the steam distribution box 7 from the first air inlet 71 and be relatively uniformly distributed to each first air outlet 72, so that atomized water of each conveying branch 612 is more uniform.

Specifically, the housing 121 includes two first sidewalls 1211 and two second sidewalls 1212, the two first sidewalls 1211 are disposed opposite to each other along the length direction of the conveying branch 612, the two second sidewalls 1212 are disposed opposite to each other along the spacing direction of the conveying branch 612, the first air inlet 71 and the second air outlet 81 are respectively disposed at the outer sides of the two first sidewalls 1211, the first air inlet 71 is adjacent to one of the second sidewalls 1212, and the second air outlet 81 is adjacent to the other second sidewall 1212. The flow paths of the atomized water flowing through each of the delivery branches 612 are equal from the first air outlet 72 to the second air inlet 82, so that the pressure drop of the atomized water flowing through each of the delivery branches 612 is as close as possible, and the flow rate of the atomized water flowing through each of the delivery branches 612 is more uniform.

Specifically, the atomizing assembly 4 includes a water storage housing 41, a partition plate 42 is disposed in the water storage housing 41, the partition plate 42 divides the water storage housing 41 into a first chamber 411 and a second chamber 412 which are communicated with each other, a neutralizing member 43 is disposed in the first chamber 411, an atomizing generator 44 is disposed in the second chamber 412, the first chamber 411 is communicated with a condensed water pipe of the condenser 22, the atomizing generator 44 is connected with the first pipeline 61, and the partition plate 42 is provided with a water passing hole 421. The condensed water can flow to the first chamber 411 and be neutralized by the neutralizing part 43, so that acidic substances in the condensed water can be reduced, corrosion to the pipeline can be reduced, and the treated condensed water can flow into the second chamber 412 through the water through holes 421 and then flow to the first pipeline 61 after being atomized by the atomization generator 44.

Illustratively, the neutralizing member 43 is a magnesium rod.

Further, in order to ensure that the condensed water is fully neutralized by the neutralizing part 43 and then enters the second chamber 412, the partition plate 42 is provided with a water through hole 421, the water through hole 421 is adjacent to the top of the partition plate 42, and the condensed water in the first chamber 411 flows into the second chamber 412 after reaching the height of the water through hole 421.

Preferably, the gas water heater further includes a controller 9 and a water replenishing pipe, the water replenishing pipe is communicated with an external water source, the first chamber 411 is communicated with the water replenishing pipe through a water conduit 45, and a control valve (not shown) is arranged on the water conduit 45 and connected with the controller 9 for controlling the opening degree of the control valve. When the condensed water in the first chamber 411 is insufficient, the controller 9 can control the control valve to open to introduce an external water source into the first chamber 411 and the second chamber 412, so that the atomization generator 44 can generate atomized water in time to cool the burner 12.

The example, gas heater still includes temperature sensor and level sensor, temperature sensor is used for measuring the combustion temperature of combustor 12, still set up level sensor in the first cavity 411, level sensor is adjacent to water hole 421, atomization generator 44, temperature sensor and level sensor all are connected with controller 9, measure preset temperature when temperature sensor, controller 9 can work by automatic control atomization generator 44, cool down combustor 12 with the formation atomized water, level sensor can detect the water level of first cavity 411 simultaneously, water level when first cavity 411 can not reach preset water level, the control valve can be opened automatically, provide the water source for atomization component 4, so that atomization component 4 can in time generate atomized water.

In the detailed description of the embodiments, various technical features may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The detailed description of the above embodiments only expresses several embodiments of the present invention, and the description thereof is more specific and detailed, but should not be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims (10)

1. The utility model provides a gas water heater, includes combustion assembly (1), heat exchange assembly (2), discharge fume pipe (3) and atomization component (4), combustion assembly (1) includes combustion chamber (11) and combustor (12), combustor (12) set up combustion chamber (11) below, heat exchange assembly (2) are including main heat exchanger (21) and condenser (22), main heat exchanger (21) set up the top of combustion chamber (11), main heat exchanger (21) with be provided with collection petticoat pipe (5) between condenser (22), discharge fume pipe (3) with condenser (22) intercommunication for discharge flue gas, import (46) of atomization component (4) with condenser (22) intercommunication, its characterized in that still includes discharge pipeline (6), discharge pipeline (6) include first pipeline (61) and second pipeline (62), first pipeline (61) set up in combustor (12), first pipeline (61) is provided with a plurality of fog outlet (611), first pipeline (611) connect first pipe (61) and second collection petticoat pipe (47) or second pipeline (47) are kept away from to first pipeline (61) and second collection petticoat pipe (47) And (4) communicating.

2. The gas water heater according to claim 1, wherein the burner (12) comprises a housing (121) and a plurality of fire banks (122) arranged at intervals in the housing (121), the first pipe (61) comprises a plurality of delivery branches (612), and the delivery branches (612) are arranged on two opposite sides of each fire bank (122) in the width direction.

3. The gas water heater of claim 2, characterized in that the length of the delivery branch (612) extends along the length direction of the fire row (122) and is adjacent to the combustion area of the fire row (122), the delivery branch (612) is provided with a plurality of mist outlets (611) at intervals along the length direction, and the mist outlets (611) are all towards the combustion area of the fire row (122).

4. The gas water heater of claim 2, further comprising a steam separating box (7) and a steam collecting box (8), wherein the steam separating box (7) is provided with a first air inlet (71) and a plurality of first air outlets (72), the steam collecting box (8) is provided with a second air outlet (81) and a plurality of second air inlets (82), the number of the first air outlets (72) and the number of the second air inlets (82) are equal to the number of the conveying branches (612), the first air outlets (72) and the second air inlets (82) correspond to each other one by one, one end of the conveying branch (612) is communicated with the first air outlet (72), and the other end of the conveying branch (612) is communicated with the second air inlets (82).

5. The gas water heater according to claim 4, characterized in that said casing (121) comprises two first side walls (1211) and two second side walls (1212), said two first side walls (1211) being arranged opposite each other along the length of said conveying branch (612), said two second side walls (1212) being arranged opposite each other along the spacing direction of said conveying branch (612), said first air inlet (71) and said second air outlet (81) being respectively arranged outside said two first side walls (1211), and said first air inlet (71) being adjacent to one of said second side walls (1212), said second air outlet (81) being adjacent to the other of said second side walls (1212).

6. The gas water heater according to any one of claims 1 to 5, characterized in that the atomizing assembly (4) comprises a water storage housing (41) and a partition plate (42), the partition plate (42) divides the water storage housing (41) into a first chamber (411) and a second chamber (412) which are communicated with each other, a neutralizing part (43) is arranged in the first chamber (411), an atomizing generator (44) is arranged in the second chamber (412), the first chamber (411) is communicated with a condensed water pipe of the condenser (22), and the atomizing generator (44) is communicated with the first pipeline (61).

7. The gas water heater of claim 6, characterized in that the partition (42) is provided with a water through hole (421) adjacent to the top, and the condensed water in the first chamber (411) flows into the second chamber (412) after reaching the water through hole (421).

8. The gas water heater of claim 7, further comprising a controller (9) and a water replenishing pipe, wherein the water replenishing pipe is communicated with an external water source, the first chamber (411) is communicated with the water replenishing pipe through a water conduit (45), and a control valve is arranged on the water conduit (45) and connected with the controller (9).

9. The gas water heater of claim 8, further comprising a temperature sensor and a liquid level sensor, wherein the temperature sensor is arranged on the burner (12) and used for detecting the combustion temperature of the burner (12), the liquid level sensor is arranged in the first chamber (411) and is adjacent to the water through hole, and the temperature sensor and the liquid level sensor are connected with the controller (9).

10. Gas water heater according to any one of claims 1 to 4, characterized in that a fan assembly (10) is provided between the fume collecting hood (5) and the condenser (22), the fan assembly (10) being adapted to discharge the fumes of the main heat exchanger (21) into the condenser (22).

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