Condensation type gas water heater

Abstract

The utility model relates to a condensation type gas water heater which comprises an outer shell, a combustion chamber, a heat exchange chamber and a condensation chamber, the combustion chamber, the heat exchange chamber and the condensation chamber are arranged in the outer shell, and a water collecting box is arranged below the condensation chamber and used for collecting condensate water formed in the condensation chamber. An atomizing nozzle is arranged above the condensing chamber, is communicated with the water collecting box through a water pipe fitting and is communicated with an air pump through an air pipe fitting; after the air pump is started, high-pressure gas is formed and conveyed into the atomizing spray head through the air pipe fitting, negative pressure formed in the atomizing spray head provides power for the condensed water to be sucked into the atomizing spray head, and the condensed water is impacted and scattered into mist by the high-pressure gas and then discharged outdoors along with smoke; according to the condensate water treatment mode, a pipeline and a device for discharging and treating the condensate water do not need to be designed, the whole machine is small in size and convenient to install, in addition, the condensate water is treated in time, and the problems that the condensate water is frozen in a low-temperature state in winter and the like can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of household electrical appliances, and particularly relates to a condensing gas water heater. Background Art

[0002] The condensing gas water heater is one of the most energy-saving and environmentally friendly products at present. Compared with ordinary gas water heaters, the condensing gas water heater is additionally provided with a stage of condensing heat exchanger, which preheats cold water by absorbing high-temperature flue gas, thereby improving the heat conversion efficiency and saving gas costs.

[0003] The condensing gas water heater preheats low-temperature liquid by using the flue gas before discharge, which is more energy-saving and environmentally friendly. The finally discharged flue gas has a lower temperature, less heat is transferred to the fuselage, and the influence on the fuselage is reduced. During the process of the condensing heat exchanger preheating the low-temperature liquid, condensed water will be generated. The condensed water contains corrosive substances such as sulfur and needs to be separately collected and discharged, resulting in problems such as a larger overall volume of the condensing water heater and complex pipeline equipment. Summary of the Invention

[0004] The purpose of the utility model is to provide a condensing gas water heater, so as to solve the problems existing in the prior art that the collection and treatment efficiency of the condensed water generated during the condensation preheating process of the existing condensing gas water heater is low, resulting in complex internal pipelines and an over-large size of the whole machine.

[0005] To achieve the above-mentioned utility model purpose, the utility model adopts the following technical solutions to achieve:

[0006] The utility model provides a condensing gas water heater, which includes:

[0007] An outer housing, in which an installation cavity is formed;

[0008] A combustion chamber, which is arranged in the installation cavity and is externally connected to a gas pipeline;

[0009] A heat exchange chamber, which is arranged above the combustion chamber and is communicated with the combustion chamber;

[0010] A condensation chamber, which is arranged beside the heat exchange chamber and is communicated with the heat exchange chamber;

[0011] Wherein, a water collecting box is arranged below the condensation chamber for collecting the condensed water formed in the condensation chamber; an atomizing nozzle is arranged above the condensation chamber, and the atomizing nozzle is respectively communicated with the water collecting box through a water pipe fitting and communicated with an air pump through an air pipe fitting.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are:

[0013] For the condensing chamber gas water heater involved in the present application, an atomizing nozzle is provided above the condensing chamber. The atomizing nozzle is communicated with a water collecting box through a water pipe fitting. The condensed water in the water collecting box is input into the atomizing nozzle through the water pipe fitting. The atomizing nozzle is also communicated with an air pump through an air pipe fitting. After the air pump is turned on, high-pressure gas is formed and transported to the atomizing nozzle through the air pipe fitting. The negative pressure formed in the atomizing nozzle provides power for sucking the condensed water into the interior of the atomizing nozzle, and the high-pressure gas impacts and breaks up the condensed water into mist, which is then discharged outdoors together with the flue gas. This condensed water treatment method does not require the design of pipelines and devices for condensed water discharge and treatment, the overall size of the machine is small, and it is convenient for installation. In addition, the condensed water is treated in a timely manner, and problems such as freezing of condensed water under low temperature conditions in winter can be avoided.

[0014] In some embodiments of the present application, the air pump and the condensing chamber are respectively located on both sides of the heat exchange chamber.

[0015] The air pump and the condensing chamber are arranged on both sides of the heat exchange chamber, which can make full use of the space in the installation cavity, the equipment layout is reasonable, which is beneficial to reducing the overall size of the condensing gas water heater and reducing the installation space.

[0016] In some embodiments of the present application, the atomizing nozzle is fixed in the smoke exhaust chamber through a connecting piece. The input end of the smoke exhaust chamber is communicated with the condensing chamber, and the output end of the smoke exhaust chamber extends to the outside of the housing.

[0017] The high-temperature flue gas formed by the combustion of gas in the combustion chamber is heat-exchanged in the heat exchange chamber, then transported to the condensing chamber for preheating with the low-temperature liquid, and then transported to the smoke exhaust chamber and discharged from the output end of the smoke exhaust chamber.

[0018] The atomizing nozzle is installed in the smoke exhaust chamber, which can save the installation space in the installation cavity and is beneficial to reducing the overall size of the equipment.

[0019] In some embodiments of the present application, the connecting piece includes a connecting groove portion extending towards the atomizing nozzle and a connecting outer edge located on the periphery of the connecting groove portion. The connecting outer edge is detachably connected to the inner wall of the smoke exhaust chamber.

[0020] As a transfer piece between the atomizing nozzle and the smoke exhaust chamber, the connecting piece is stably connected to the smoke exhaust chamber through the connecting outer edge and fixed to the atomizing nozzle through the connecting groove portion, so that the atomizing nozzle is stably connected in the smoke exhaust chamber.

[0021] In some embodiments of the present application, a water inlet end and an air inlet end are formed on the atomizing nozzle. The water inlet end is used for detachable connection with the water pipe fitting, and the air inlet end is used for detachable connection with the air pipe fitting;

[0022] A connection hole is formed on the connection groove portion, and the water inlet end and the air inlet end are respectively connected to the corresponding connection holes through fasteners.

[0023] The connection groove portion extends towards the atomizing nozzle direction. Then, a fixed inner cavity is formed between the connection groove portion and the smoke exhaust chamber. After the water inlet end and the air inlet end of the atomizing nozzle are inserted into the connection holes, fasteners such as fastening bolts are connected to the side where the water inlet end and the air inlet end extend into the fixed inner cavity, thereby fixing the position of the atomizing nozzle.

[0024] In some embodiments of the present application, a conforming surface adapted to the inner wall shape of the smoke exhaust chamber is formed on the side of the connection outer edge in contact with the inner wall of the smoke exhaust chamber.

[0025] The conforming surface on the connection outer edge can better contact the inner wall of the smoke exhaust chamber, increasing the connection contact area. A plurality of fastening holes are dispersedly arranged on the connection outer edge to achieve the connection and fixation with the smoke exhaust chamber.

[0026] In some embodiments of the present application, a valve body assembly is provided at the bottom of the smoke exhaust chamber. The valve body assembly includes a valve seat fixed on the inner wall of the smoke exhaust chamber and a valve body connected to the valve seat. The valve body assembly is used to control the unidirectional delivery of flue gas from the condensation chamber to the smoke exhaust chamber.

[0027] The valve body on the valve body assembly can be opened unidirectionally upwards to deliver the flue gas in the condensation chamber to the smoke exhaust chamber. At the same time, the valve body on the valve body assembly is in a closed state under the condition of flue gas backflow to avoid flue gas reflux.

[0028] In some embodiments of the present application, a lower limit portion and an upper limit portion are formed on the valve seat. The lower limit portion is used to limit the downward opening of the valve body, and the upper limit portion is used to limit the maximum position of the upward opening of the valve body.

[0029] When the valve body is in the open state, under the action of the upper limit portion, its maximum opening position is restricted. When the valve body is in the closed state, its lower part contacts the lower limit portion, and the lower limit portion supports and limits the valve body.

[0030] In some embodiments of the present application, two opposite positioning portions are formed on the valve seat. A shaft hole is formed on the positioning portion. The valve body includes a connecting shaft connected to the shaft hole and valve plates rotatably connected to both sides of the connecting shaft. The upper limit portion is formed on the positioning portion.

[0031] The positioning portion is a support and positioning structure extending upwards formed on the valve seat. The valve body is connected to the positioning portion. The valve plate is turned upwards by a certain angle relative to the connecting shaft, and the valve body is in the open state. The valve plate is reset and contacts the lower limit portion, and the valve body is in the closed state.

[0032] In some embodiments of the present application, an inlet port and an outlet port are further formed on the outer casing. One end of the water delivery pipe is connected to the inlet port, and the other end is connected to the inlet port after passing through the condensation chamber and the heat exchange chamber in sequence.

[0033] After reading the specific embodiments of the present invention in conjunction with the accompanying drawings, other features and advantages of the present invention will become clearer. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor.

[0035] Figure 1 is a schematic structural diagram of an embodiment of the condensing gas water heater proposed by the present invention;

[0036] Figure 2 Schematic internal connection diagram of the condensing gas water heater;

[0037] Figure 3 is a connection diagram of the atomizing nozzle, air pump, and water collecting box;

[0038] Figure 4 is a schematic structural diagram of the smoke exhaust chamber;

[0039] Figure 5 is a split diagram of the smoke exhaust chamber, atomizing nozzle, and valve body assembly;

[0040] Figure 6 is a schematic structural diagram of the connecting piece;

[0041] Figure 7 is a schematic structural diagram of the valve body assembly in the closed state;

[0042] Figure 8 is a schematic diagram of the valve body assembly in the open state;

[0043] Figure 9 is a split diagram of the valve body and valve seat;

[0044] In the figure,

[0045] 100. Outer casing; 110. Inlet port; 120. Outlet port;

[0046] 200. Combustion chamber;

[0047] 300. Heat exchange chamber;

[0048] 400. Condensation chamber;

[0049] 500, Water collection box; 510, Pipe fitting;

[0050] 600, Air pump;

[0051] 700, Smoke exhaust chamber; 710, Air pipe fitting; 720, Atomizing nozzle; 721, Water inlet end; 722, Air inlet end; 723, Air jet hole; 724, Fastener;

[0052] 730, Connector; 731, Connection groove part; 7311, First connection hole; 7312, Second connection hole; 732, Connection outer edge; 7321, Fastening hole;

[0053] 740, Valve body assembly; 741, Valve seat; 7411, Lower limit part; 7412, Positioning part; 7413, Shaft hole; 7414, Upper limit part; 742, Valve body; 7421, Connection shaft; 7422, Valve plate;

[0054] 800, Water delivery pipe. Detailed implementation mode

[0055] In order to make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0056] It should be noted that in the description of the present utility model, the terms indicating directions or positional relationships such as "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are based on the directions or positional relationships shown in the drawings. This is only for convenience of description and does not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be construed as a limitation of the present utility model. In addition, the terms "first" and "second" are only for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0057] In the present utility model, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. shall be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0058] In the present utility model, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include direct contact between the first and second features, or may include non-direct contact between the first and second features but through additional features therebetween. Moreover, the first feature being "above", "over" and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or merely indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath" and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or merely indicating that the horizontal height of the first feature is less than that of the second feature.

[0059] The following disclosure provides many different embodiments or examples for implementing different structures of the present utility model. To simplify the disclosure of the present utility model, components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the present utility model. In addition, the present utility model may repeat reference numerals and / or reference letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between various embodiments and / or settings discussed. In addition, the present utility model provides examples of various specific processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0060] Referring Figures 1 - 3 , this application proposes a condensing gas water heater, which includes a housing 100, a combustion chamber 200, a heat exchange chamber 300, a condensing chamber, and a water collecting tray. An installation inner cavity is formed in the housing 100, and the combustion chamber 200, the heat exchange chamber 300, and the condensing chamber 400 are arranged in the installation inner cavity. The water collecting box 500 is specifically arranged below the condensing chamber 400.

[0061] An inlet port 110 and an outlet port 120 are arranged below the housing 100. The inlet port 110 is externally connected to an inlet pipe, and the outlet port 120 is externally connected to an outlet pipe.

[0062] One end of a water delivery pipe 800 located in the installation inner cavity is connected to the inlet port 110, and the other end is sequentially connected to the outlet port 120 after passing through the condensing chamber 400 and the heat exchange chamber 300.

[0063] The low-temperature liquid input into the inlet pipe enters the water delivery pipe 800, is preheated in the condensing chamber 400 with the relatively high-temperature flue gas after heat exchange, and then is transported into the heat exchange chamber 300, where it exchanges heat with the high-temperature flue gas output from the combustion chamber 200. Finally, the low-temperature liquid is heated and then output from the outlet pipe to the usage terminal.

[0064] Specifically, the combustion chamber 200 is externally connected to a gas pipeline. The gas pipeline transports gas into the combustion chamber 200, and the gas burns to form high-temperature flue gas, which is transported into the heat exchange cavity to further heat the liquid preheated in the water delivery pipe 800.

[0065] Specifically, the heat exchange chamber 300 is arranged above the combustion chamber 200 and is connected to the combustion chamber 200, facilitating the direct upward transportation of the high-temperature flue gas formed in the combustion chamber 200 into the heat exchange chamber 300.

[0066] The condensation chamber 400 is arranged beside the heat exchange chamber 300 and is connected to the heat exchange chamber 300. The flue gas in the heat exchange chamber 300 continues to be transported to the side into the condensation chamber 400.

[0067] Since the condensation heat exchanger will reduce the temperature of the flue gas flowing through it, the water vapor in the flue gas will condense into condensed water. Correspondingly, a water collection box 500 is arranged below the condensation chamber 400 for collecting the condensed water formed in the condensation chamber 400.

[0068] Reference Figure 4 、 Figure 5 Above the condensation chamber 400, an atomizing nozzle 720 is arranged. The atomizing nozzle 720 is respectively connected to the water collection box 500 through a water pipe fitting 510 and connected to an air pump 600 through an air pipe fitting 710.

[0069] After the air pump 600 is turned on, high-pressure gas is transported into the atomizing nozzle 720 through the air pipe fitting 710. The negative pressure formed in the atomizing nozzle 720 provides power for sucking the condensed water into the interior of the atomizing nozzle 720, and the high-pressure gas impacts and breaks up the condensed water into mist, which is then discharged outdoors together with the flue gas through the air holes 723.

[0070] This method of treating condensed water does not require the design of pipelines and devices for discharging and treating condensed water. The overall size of the machine is small and it is convenient for installation. In addition, the condensed water is treated in a timely manner, and problems such as the freezing of condensed water in the low-temperature state in winter can be avoided.

[0071] The specific structures of the air pump 600 and the atomizing nozzle 720 and the atomizing process are prior art and can refer to the Venturi tube structure, which will not be described in detail here.

[0072] Specifically, the air pump 600 and the condensation chamber 400 are respectively located on both sides of the heat exchange chamber 300.

[0073] The air pump 600 and the condensation chamber 400 are arranged on both sides of the heat exchange chamber 300, which can make full use of the space in the installation cavity. The equipment layout is reasonable, which is beneficial to reducing the overall size of the condensing gas water heater and reducing the installation space.

[0074] In addition, the layout paths of the water pipe fitting 510 and the air pipe fitting 710 can be shortened, simplifying the pipeline.

[0075] The condensation chamber 400 is also in communication with the smoke exhaust chamber 700. Specifically, the input end of the smoke exhaust chamber 700 is in communication with the condensation chamber 400, and the output end of the smoke exhaust chamber 700 extends to the outside of the outer housing 100.

[0076] The high-temperature flue gas formed by the combustion of the fuel gas in the combustion chamber 200 is heat-exchanged in the heat exchange chamber 300, then transported to the condensation chamber 400 for preheating with the low-temperature liquid, and then transported to the smoke exhaust chamber 700 and discharged from the output end of the smoke exhaust chamber 700.

[0077] In order to further save the installation space in the installation cavity and reduce the overall size of the device, the atomizing nozzle 720 is fixed in the smoke exhaust chamber 700 through the connecting member 730.

[0078] Combined Figure 6 In some embodiments of the present application, the connecting member 730 includes a connecting groove portion 731 extending towards the atomizing nozzle 720 and a connecting outer edge 732 located on the periphery of the connecting groove portion 731, and the connecting outer edge 732 is detachably connected to the inner wall of the smoke exhaust chamber 700.

[0079] As an adapter between the atomizing nozzle 720 and the smoke exhaust chamber 700, the connecting member 730 is stably connected to the smoke exhaust chamber 700 through the connecting outer edge 732 and fixed to the atomizing nozzle 720 through the connecting groove portion 731, so that the atomizing nozzle 720 is stably connected in the smoke exhaust chamber 700.

[0080] Specifically, the bottom of the connecting groove portion 731 is a planar structure, and a connecting hole is formed on the connecting groove portion 731. The connecting hole is specifically formed at the bottom of the connecting groove portion 731 to facilitate the connection and fixation with the atomizing nozzle 720.

[0081] An inlet end 721 and an air inlet end 722 are formed on the atomizing nozzle 720. The inlet end 721 is used for detachably connecting with the water pipe member 510, and the air inlet end 722 is used for detachably connecting with the air pipe member 710.

[0082] The connecting hole specifically includes a first connecting hole 7311 corresponding to the connection of the inlet end 721 and a second connecting hole 7312 corresponding to the connection of the air inlet end 722. The first connecting hole 7311 and the second connecting hole 7312 are arranged up and down on the connecting groove portion 731.

[0083] The connecting groove portion 731 extends towards the atomizing nozzle 720, then a fixing cavity is formed between the connecting groove portion 731 and the smoke exhaust chamber 700.

[0084] After the inlet end 721 and the air inlet end 722 of the atomizing nozzle 720 are inserted into the corresponding connecting holes, fasteners 724 such as fastening bolts are fixed on the side where the inlet end 721 and the air inlet end 722 extend into the fixing cavity to fix the position of the atomizing nozzle 720.

[0085] One end of the air inlet end 722 and the water inlet end 721 close to the atomizing nozzle 720 is formed with a limiting convex part whose size is larger than the corresponding connecting hole.

[0086] During installation, the front ends of the air inlet end 722 and the water inlet end 721 are inserted into the corresponding connecting holes from the outside of the connecting groove part 731 until the outside of the connecting groove part 731 contacts the limiting convex part.

[0087] External threads are respectively formed on the outer walls of the front ends of the water inlet end 721 and the air inlet end 722, and the fastening bolts are fixed on the corresponding external threads from the fixed inner cavity. Then, the atomizing nozzle 720 can be firmly connected to the connecting member 730.

[0088] The smoke exhaust chamber 700 is specifically a cylindrical structure, and the outer wall of the smoke exhaust chamber 700 is arc-shaped.

[0089] One side of the connecting outer edge 732 in contact with the inner wall of the smoke exhaust chamber 700 is formed with a conforming surface adapted to the shape of the inner wall of the smoke exhaust chamber 700.

[0090] The conforming surface on the connecting outer edge 732 can better contact the inner wall of the smoke exhaust chamber 700, increasing the connection contact area. A plurality of fastening holes 7321 are dispersedly arranged on the connecting outer edge 732 to achieve the connection and fixation with the smoke exhaust chamber 700.

[0091] Reference Figure 5 、 Figures 7 - 9 , in some embodiments of the present application, a valve body assembly 740 is provided at the bottom of the smoke exhaust chamber 700. The valve body assembly 740 includes a valve seat 741 fixed on the inner wall of the smoke exhaust chamber 700 and a valve body 742 connected to the valve seat 741. The valve body assembly 740 is used to control the unidirectional delivery of flue gas from the condensation chamber 400 to the smoke exhaust chamber 700.

[0092] The outer peripheral shape of the valve seat 741 is circular, adapted to the inner cavity of the smoke exhaust chamber 700, and is fixed at a lower position in the inner cavity of the smoke exhaust chamber 700.

[0093] A valve port is formed on the valve seat 741, and the valve body 742 controls the opening and closing of the valve port.

[0094] Specifically, under the action of the flue gas, the valve body 742 on the valve body assembly 740 can overcome its own gravity and open upward to open the valve port.

[0095] In some embodiments of the present application, two positioning parts 7412 are formed on the valve seat 741 and arranged opposite to each other along the radial direction.

[0096] The positioning part 7412 is a supporting and positioning structure formed on the valve seat 741 and extending upward. The valve body 742 is connected to the positioning part 7412. The valve plate 7422 is turned upward by a certain angle relative to the connecting shaft 7421, and the valve body 742 is in an open state. The valve plate 7422 is reset and contacts the lower limit part 7411, and the valve body 742 is in a closed state.

[0097] The positioning part 7412 is L-shaped, including a positioning horizontal part and a positioning vertical part. The positioning horizontal part is formed on the valve seat 741 and extends towards the center direction, and the positioning vertical part is a bend formed on the inner side of the positioning horizontal part and extending upward.

[0098] A shaft hole 7413 is formed on the positioning vertical part for connecting with the valve body 742.

[0099] The valve body 742 includes a connecting shaft 7421 connected to the shaft hole 7413 and valve plates 7422 rotatably connected to both sides of the connecting shaft 7421. When the flue gas flows from bottom to top, the valve plates 7422 on both sides are turned upward with the connecting shaft 7421 as the rotation axis, and the valve opening on the valve seat 741 is opened.

[0100] The upper limit part 7414 is specifically a bend formed on the positioning part 7412 and extending towards the center direction of the valve body 742. The width of the upper limit part 7414 is small. The valve plate 7422 is turned upward with the connecting shaft 7421 as the rotation center, and the valve plate 7422 contacts the upper limit part 7414, thereby controlling the opening position of the valve plate 7422.

[0101] In some embodiments of the present application, a lower limit part 7411 and an upper limit part 7414 are formed on the valve seat 741. The lower limit part 7411 is used to limit the downward opening of the valve body 742, and the upper limit part 7414 is used to limit the maximum upward opening position of the valve body 742.

[0102] The number of the lower limit parts 7411 is two, which are arranged oppositely along the radial direction at both ends of the valve seat 741. The lower limit part 7411 is a convex part extending towards the center direction of the valve seat 741, and is used to support and limit the valve body 742.

[0103] Of course, multiple lower limit parts 7411 can also be arranged oppositely along the radial direction to improve the supporting effect on the valve body 742. Considering the blockage of the air flow, preferably, one lower limit part 7411 is respectively arranged in the direction perpendicular to the connection line of the upper limit part 7414.

[0104] When the valve body 742 is in an open state, under the action of the upper limit part 7414, its maximum opening position is limited. When the valve body 742 is in a closed state, its lower part contacts the lower limit part 7411, and the lower limit part 7411 supports and limits the valve body 742.

[0105] The valve body 742 on the valve body assembly 740 is in a closed state under its own gravity or in the state of reverse flow of flue gas, avoiding the reflux of flue gas; when the flue gas in the condensation chamber 400 is transported to the smoke exhaust chamber 700, the valve body 742 on the valve body assembly 740 opens upward to open the valve port.

[0106] In the description of this specification, the description with reference to terms such as "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples", etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0107] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, for those of ordinary skill in the art, it is still possible to modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions required to be protected by the present invention.

Claims

1. A condensing gas water heater, characterized in that, Comprising: An outer housing within which an installation cavity is formed; A combustion chamber disposed in the installation cavity, and the combustion chamber is externally connected to a gas pipeline; A heat exchange chamber disposed above the combustion chamber and communicating with the combustion chamber; A condensation chamber disposed beside the heat exchange chamber and communicating with the heat exchange chamber; Wherein, a water collection box is disposed below the condensation chamber for collecting the condensed water formed in the condensation chamber; an atomizing nozzle is disposed above the condensation chamber, and the atomizing nozzle is respectively connected to the water collection box through a water pipe fitting and connected to an air pump through an air pipe fitting.

2. The condensing gas water heater according to claim 1, wherein The air pump and the condensation chamber are respectively located on both sides of the heat exchange chamber.

3. The condensing gas water heater according to claim 1, wherein The atomizing nozzle is fixed in a smoke exhaust chamber through a connecting member, the input end of the smoke exhaust chamber communicates with the condensation chamber, and the output end of the smoke exhaust chamber extends to the outside of the outer housing.

4. The condensing gas water heater according to claim 3, wherein The connecting member includes a connecting groove portion extending towards the atomizing nozzle and a connecting outer edge located on the periphery of the connecting groove portion, and the connecting outer edge is detachably connected to the inner wall of the smoke exhaust chamber.

5. The condensing gas water heater according to claim 4, wherein An inlet end head and an air inlet end head are formed on the atomizing nozzle, the inlet end head is used for detachably connecting with the water pipe fitting, and the air inlet end head is used for detachably connecting with the air pipe fitting; A connecting hole is formed on the connecting groove portion, and the inlet end head and the air inlet end head are respectively connected to the corresponding connecting holes through fasteners.

6. The condensing gas water heater according to claim 4, wherein A conforming surface adapted to the inner wall of the smoke exhaust chamber is formed on one side of the connecting outer edge in contact with the inner wall of the smoke exhaust chamber.

7. The condensing gas water heater according to claim 3, wherein A valve body assembly is disposed at the bottom of the smoke exhaust chamber, and the valve body assembly includes a valve seat fixed on the inner wall of the smoke exhaust chamber and a valve body connected to the valve seat, and the valve body assembly is used for controlling the unidirectional transmission of flue gas from the heat exchange chamber to the smoke exhaust chamber.

8. The condensing gas water heater according to claim 7, wherein A lower limit portion and an upper limit portion are formed on the valve seat, the lower limit portion is used for restricting the downward opening of the valve body, and the upper limit portion is used for restricting the maximum position of the upward opening of the valve body.

9. The condensing gas water heater according to claim 8, wherein Two relatively arranged positioning portions are formed on the valve seat, a shaft hole is formed on the positioning portion, the valve body includes a connecting shaft connected to the shaft hole and valve plates rotatably connected to both sides of the connecting shaft, and the upper limit portion is formed on the positioning portion.

10. The condensing gas water heater according to claim 1, wherein An inlet port and an outlet port are also formed on the outer housing. One end of the water delivery pipe is connected to the inlet port, and the other end is connected to the inlet port after passing through the condensation chamber and the heat exchange chamber in sequence.

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