CN220287730U - Integrated dual-system gas water heater - Google Patents

Abstract

The utility model belongs to the technical field of gas water heaters, and discloses an integrated dual-system gas water heater which comprises an inner shell, a first functional water heating system and a second functional water heating system, wherein a partition plate is arranged in a cavity of the inner shell and divides the cavity into a first accommodating cavity and a second accommodating cavity; the second functional hot water system comprises a second functional combustion chamber and a second functional heat exchange area which are arranged in a second accommodating cavity, and the bottom end of the inner shell is also provided with a second functional air inlet channel mutually independent of the first functional air inlet channel and a second functional air inlet pipeline provided with a second functional fuel gas regulating valve. The utility model has compact structure; the two sets of water systems can independently and adaptively adjust the fuel-air ratio, which is beneficial to improving the combustion efficiency.

Description

Integrated dual-system gas water heater

Technical Field

The utility model relates to the technical field of gas water heaters, in particular to an integrated dual-system gas water heater.

Background

A gas water heater is a gas appliance for supplying hot water by transferring heat to cold water flowing through a heat exchanger by combustion heating in a combustion chamber using gas as fuel to prepare hot water, and is generally used for shower water supply.

The heating stove is a sleeve-type or plate-type heat exchange device, belongs to secondary heating, is generally only used for providing heating hot water, has poor experience of bath or hot water supply, and can not be used simultaneously for supplying hot water and heating.

In order to meet the demand of simultaneously supplying hot water and heating water, a dual function system integrating a gas water heater and a heating boiler is needed.

In order to simultaneously meet the dual purposes of supplying domestic hot water and heating water, the integrated dual-functional system in the prior art directly combines a hot water supply system and a heating water supply system, and has large volume and large occupied space; or in order to pursue compactness, some parts are omitted, so that the fuel-air ratio of the two systems cannot be independently and adaptively adjusted, the combustion efficiency is influenced, and the energy waste is easily caused.

Disclosure of Invention

The utility model aims to provide an integrated dual-system gas water heater, which has a compact structure and can adaptively adjust the fuel-air ratio for two systems.

The technical problems are solved by the following technical scheme:

an integrated dual system gas water heater comprising:

the inner shell is provided with a cavity, a baffle plate is arranged in the cavity along the vertical direction, and the baffle plate divides the cavity into a first accommodating cavity and a second accommodating cavity;

the first functional hot water system comprises a first functional combustion chamber and a first functional heat exchange area which are sequentially arranged in the first accommodating cavity from bottom to top, a first functional air inlet channel and a first functional air inlet pipeline are arranged at the bottom end of the inner shell, the first functional air inlet channel is communicated with the first accommodating cavity, a first functional gas regulating valve is arranged in the first functional air inlet pipeline, and the first functional gas regulating valve can regulate the first functional gas-air ratio of the first functional combustion chamber;

the second functional hot water system comprises a second functional combustion chamber and a second functional heat exchange area which are sequentially arranged in a second accommodating cavity from bottom to top, a second functional air inlet channel and a second functional air inlet pipeline are arranged at the bottom end of the inner shell, the second functional air inlet channel is communicated with the second accommodating cavity, a second functional gas regulating valve is arranged on the second functional air inlet pipeline, and the second functional gas regulating valve can regulate the second functional gas-air ratio of the second functional combustion chamber.

Compared with the background technology, the integrated dual-system gas water heater has the following beneficial effects:

the integrated dual-system gas water heater provided by the utility model comprises an inner shell, a first functional hot water system and a second functional hot water system; the inner shell is divided into a first accommodating cavity and a second accommodating cavity through the partition plate, the first functional hot water system comprises a first functional combustion chamber and a first functional heat exchange area which are arranged in the first accommodating cavity, and the second functional hot water system comprises a second functional combustion chamber and a second functional heat exchange area which are arranged in the second accommodating cavity, so that the integral structure of the integrated dual-system gas water heater is compact, and the occupied space is small.

The bottom end of the first functional combustion chamber is provided with a first functional air inlet channel and a first functional air inlet pipeline, the first functional air inlet pipeline is provided with a first functional fuel gas regulating valve, when fuel gas in the first functional combustion chamber is combusted, the flow of the fuel gas can be regulated by regulating the first functional fuel gas regulating valve, and then the first functional fuel gas-air ratio of the first functional combustion chamber can be regulated;

the bottom end of the second functional combustion chamber is provided with a second functional air inlet channel and a second functional air inlet pipeline, the second functional air inlet pipeline is provided with a second functional fuel gas regulating valve, and when fuel gas in the second functional combustion chamber is combusted, the flow of the fuel gas can be regulated by regulating the second functional fuel gas regulating valve, so that the second functional fuel gas-air ratio of the second functional combustion chamber can be regulated; the second functional air inlet channel and the first functional air inlet channel are mutually independent, so that the first functional hot water system and the second functional hot water system can respectively and independently adapt to and adjust the fuel-air ratio so as to adapt to different combustion conditions, and further improve the combustion efficiency; the first functional hot water system and the second functional hot water system can be used independently or simultaneously, and are not mutually interfered when in use, so that the normal use of domestic hot water and heating water can be met.

In one embodiment, the integrated dual-system gas water heater further comprises a fume collecting hood, the fume collecting hood is arranged at the top end of the shell, the fume collecting hood is provided with a first functional fume collecting cavity and a second functional fume collecting cavity which are separated from each other, the bottom ends of the first functional fume collecting cavity and the second functional fume collecting cavity are respectively communicated with the top ends of the first functional heat exchange area and the second functional heat exchange area, and the top ends of the first functional fume collecting cavity and the second functional fume collecting cavity are respectively communicated with the fume exhaust pipe.

In one embodiment, a first functional anti-downdraft device is arranged between the first functional smoke collecting cavity and the smoke exhaust pipe to conduct smoke from the first functional heat exchange area to the smoke exhaust pipe in a unidirectional manner, and a second functional anti-downdraft device is arranged between the second functional smoke collecting cavity and the smoke exhaust pipe to conduct smoke from the second functional heat exchange area to the smoke exhaust pipe in a unidirectional manner.

In one embodiment, the integrated dual-system gas water heater further comprises a first functional fan and a second functional fan, the first functional fan is arranged in the first functional air inlet channel, the air outlet faces the first functional combustion chamber, and the second functional fan is arranged in the second functional air inlet channel, the air outlet faces the second functional combustion chamber.

In one embodiment, the first functional fan is arranged in the first functional smoke collecting cavity, and the air outlet faces the first functional anti-downdraft device; the second functional fan is arranged in the second functional smoke collecting cavity, and the air outlet faces the second functional anti-downdraft device.

In one embodiment, the water inlet of the first functional heat exchange area is connected with a first functional water inlet pipe, the water outlet of the first functional heat exchange area is connected with a first functional water outlet pipe, the water inlet of the second functional heat exchange area is connected with a second functional water inlet pipe, the water outlet of the second functional heat exchange area is connected with a second functional water outlet pipe, a bypass water pipe is arranged between the first functional water inlet pipe and the second functional water inlet pipe, and an on-off valve is arranged on the bypass water pipe.

In one embodiment, the first functional water inlet pipe is provided with a first functional water pump, and the second functional water inlet pipe is provided with a second functional water pump.

In one embodiment, a fume collecting hood partition plate is arranged in the fume collecting hood, the fume collecting hood partition plate divides the fume collecting hood into a first functional fume collecting cavity and a second functional fume collecting cavity, the bottom end of the fume collecting hood partition plate is connected to the top end of the partition plate, and the top end of the fume collecting hood partition plate is positioned at the junction of the fume exhaust pipe and the fume collecting hood and on the central axis of the fume exhaust pipe.

In one embodiment, the first and second functional anti-windfall devices are check valves.

In one embodiment, the check valve includes:

one end of the wind shield is hinged with the smoke collecting cover partition plate, and the other end of the wind shield is a free end;

and the limiting piece is arranged on the inner wall of the smoke exhaust pipe, and the free end is abutted with the limiting piece when the wind shield is in a closed state.

Drawings

FIG. 1 is a schematic diagram of an integrated dual-system gas water heater according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an installation position of a first functional water pump in an integrated dual-system gas water heater according to an embodiment of the present utility model;

fig. 3 is a schematic structural diagram of an integrated dual-system gas water heater according to a second embodiment of the present utility model.

Description of the reference numerals:

100. an inner housing; 101. a partition plate; 200. an outer housing;

1. a first functional hot water system; 11. a first functional combustion chamber; 111. a first functional air intake passage; 112. a first functional air intake duct; 12. a first functional heat exchange area; 13. a first functional gas regulating valve; 14. a first functional fan; 15. a first functional inlet pipe; 151. a first function water pump; 16. a first functional outlet pipe;

2. a second functional hot water system; 21. a second functional combustion chamber; 211. a second functional air intake passage; 212. a second functional air intake duct; 22. a second functional heat exchange area; 23. a second functional gas regulating valve; 24. a second functional fan; 25. a second functional water inlet pipe; 251. a second functional water pump; 26. a second functional outlet pipe;

3. a fume collecting hood; 31. a first functional smoke collecting cavity; 311. a first functional anti-wind down device; 3111. a wind deflector; 3112. a limiting piece; 32. a second functional smoke collecting cavity; 321. a second functional anti-wind-down device; 33. a fume collecting hood partition;

4. a smoke exhaust pipe; 5. a bypass water pipe; 51. and an on-off valve.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

In the description of the present application, it should be understood that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application.

The terms "first," "second," and the like, 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 defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Embodiment one:

the integrated dual-system gas water heater is shown in fig. 1, and comprises an inner shell 100, a first functional water heating system 1 and a second functional water heating system 2, wherein the inner shell 100 is provided with a cavity, a partition plate 101 is arranged in the cavity, the partition plate 101 divides the cavity into a first accommodating cavity and a second accommodating cavity, the first functional water heating system 1 comprises a first functional combustion chamber 11 and a first functional heat exchange area 12 which are sequentially arranged in the first accommodating cavity from bottom to top, a first functional air inlet channel 111 and a first functional air inlet pipeline 112 are arranged at the bottom end of the inner shell 100, the first functional air inlet channel 111 is communicated with the first accommodating cavity, the first functional air inlet pipeline 112 is provided with a first functional gas regulating valve 13, and the first functional gas regulating valve 13 can regulate a first functional fuel-air ratio of the first functional combustion chamber 11; the second functional hot water system 2 comprises a second functional combustion chamber 21 and a second functional heat exchange area 22 which are sequentially arranged in a second accommodating cavity from bottom to top, a second functional air inlet channel 211 and a second functional air inlet pipeline 212 are arranged at the bottom end of the inner shell 100, the second functional air inlet channel 211 is communicated with the second accommodating cavity, a second functional gas regulating valve 23 is arranged in the second functional air inlet pipeline 212, and the second functional gas regulating valve 23 can regulate the second functional gas-air ratio of the second functional combustion chamber 21.

As shown in fig. 1, the integrated dual-system gas water heater has an inner housing 100 and an outer housing 200, and a first functional water heating system 1 and a second functional water heating system 2 are arranged in the outer housing 200 in parallel to form the integrated dual-system gas water heater, wherein the first functional water heating system 1 and the second functional water heating system 2 are respectively used for providing domestic hot water and heating water. The cavity of the inner housing 100 is divided into a first accommodating cavity and a second accommodating cavity by a partition plate 101, the first accommodating cavity is used for setting a first functional combustion chamber 11 and a first functional heat exchange area 12 of the first functional hot water system 1, and the second accommodating cavity is used for setting a second functional combustion chamber 21 and a second functional heat exchange area 22 of the second functional hot water system 2, so that the centralized setting of the combustion chamber and the heat exchange area is realized, and the structure is compact and the occupied space is small. In this embodiment, the first functional hot water system 1 on the right side in fig. 1 provides domestic hot water, and the second functional hot water system 2 on the left side provides heating water.

The first functional hot water system 1 comprises a first functional combustion chamber 11 and a first functional heat exchange area 12 which are arranged in a first accommodating cavity, a first functional air inlet channel 111 and a first functional air inlet pipeline 112 are arranged at the bottom end of the first functional combustion chamber 11, a first functional gas regulating valve 13 is arranged on the first functional air inlet pipeline 112, and when the gas in the first functional combustion chamber 11 is combusted, the flow of the gas can be regulated by regulating the first functional gas regulating valve 13, so that the first functional gas-air ratio of the first functional combustion chamber 11 can be regulated, and the combustion efficiency of the first functional combustion chamber 11 can be improved. The second functional hot water system 2 comprises a second functional combustion chamber 21 and a second functional heat exchange area 22, a second functional air inlet channel 211 and a second functional air inlet pipeline 212 are arranged at the bottom end of the second functional combustion chamber 21, a second functional fuel gas regulating valve 23 is arranged on the second functional air inlet pipeline 212, and when the fuel gas in the second functional combustion chamber 21 is combusted, the flow of the fuel gas can be regulated by regulating the second functional fuel gas regulating valve 23, so that the second functional fuel gas-air ratio of the second functional combustion chamber 21 can be regulated, and the combustion efficiency of the second functional combustion chamber 21 can be improved. In this embodiment, the second functional air inlet channel 211 and the first functional air inlet channel 111 are set independently, so that the first functional hot water system 1 and the second functional hot water system 2 can independently feed air, and can independently and adaptively adjust the fuel-air ratio to adapt to different combustion conditions, thereby respectively adjusting and improving the combustion efficiency; the first functional hot water system 1 and the second functional hot water system 2 can be used independently or simultaneously, and are not mutually interfered when in use, so that the normal use of domestic hot water and heating water can be met.

In one embodiment, the integrated dual-system gas water heater further comprises a smoke collecting cover 3, the smoke collecting cover 3 is arranged at the top end of the inner shell 100, the smoke collecting cover 3 is provided with a first function smoke collecting cavity 31 and a second function smoke collecting cavity 32 which are mutually separated, the bottom ends of the first function smoke collecting cavity 31 and the second function smoke collecting cavity 32 are respectively communicated with the top ends of the first function heat exchange area 12 and the second function heat exchange area 22, the top ends of the first function smoke collecting cavity 31 and the second function smoke collecting cavity 32 are respectively communicated with the smoke exhaust pipe 4, the two sets of systems are respectively and independently exhausted with smoke and then share the smoke exhaust pipe 4, and the integrated level is high and the occupied volume is small.

In one embodiment, a first functional anti-downdraft device 311 is disposed between the first functional smoke collecting chamber 31 and the smoke exhaust pipe 4 to unidirectionally conduct smoke from the first functional heat exchange area 12 to the smoke exhaust pipe 4, and a second functional anti-downdraft device 321 is disposed between the second functional smoke collecting chamber 32 and the smoke exhaust pipe 4 to unidirectionally conduct smoke from the second functional heat exchange area 22 to the smoke exhaust pipe 4.

As shown in fig. 1, the first functional smoke collecting cavity 31 corresponds to a top end smoke discharging channel of the first functional heat exchange area 12, the second functional smoke collecting cavity 32 corresponds to a top end smoke discharging channel of the second functional heat exchange area 22, and the first functional smoke collecting cavity 31 and the second functional smoke collecting cavity 32 are mutually independent, so that the top ends of the first functional heat exchange area 12 and the second functional heat exchange area 22 can be conveniently and independently discharged with smoke, and mutual interference is avoided. Wherein, the first function is prevented down draught device 311 sets up between first function collection cigarette chamber 31 and is discharged after being discharged to the tobacco pipe 4 with the one-way conduction of flue gas, and the second function is prevented down draught device 321 sets up between second function collection cigarette chamber 32 and is discharged after being discharged to the tobacco pipe 4, is used for discharging the flue gas after being directed to the tobacco pipe 4 with the one-way conduction, and common exhaust pipe 4 does benefit to saving installation space, and does benefit to the quick discharge of flue gas. In some embodiments, the first functional anti-windfall device 311 and the second functional anti-windfall device 321 are both check valves. The check valve has an automatic opening and closing function, and the exhaust systems do not affect each other when the first and second functional hot water systems 1 and 2 are operated separately or simultaneously.

As shown in fig. 2, the check valve comprises a wind shield 3111 and a limiting member 3112, one end of the wind shield 3111 is hinged with the fume collecting hood partition 33, the other end is a free end, the free end is opened when rotating towards the interior of the fume exhaust pipe 4, and the free end is closed when rotating towards the direction of the first functional fume collecting cavity 31 or the second functional fume collecting cavity 32; the stopper 3112 is provided on the inner wall of the smoke exhaust pipe 4, and the free end of the wind deflector 3111 abuts against the stopper 3112 in the closed state, so that the wind deflector 3111 can be prevented from rotating excessively. The check valve provided by the embodiment has a simple structure, is easy to realize, can isolate the first function smoke collecting cavity 31 and the second function smoke collecting cavity 32, realizes the connection of the smoke exhaust pipe 4 respectively, and ensures that two systems can not influence each other when running simultaneously.

In one embodiment, the integrated dual-system gas water heater further comprises a first functional fan 14 and a second functional fan 24, wherein the first functional fan 14 is disposed in the first functional air inlet channel 111, the air outlet faces the first functional combustion chamber 11, and the second functional fan 24 is disposed in the second functional air inlet channel 211, the air outlet faces the second functional combustion chamber 21.

As shown in fig. 1, the first functional air inlet channel 111 is provided with the first functional fan 14, the first functional fan 14 can provide air for the first functional combustion chamber 11, the air flow can be controlled by adjusting the air quantity of the first functional fan 14, the control of the air quantity and the air quantity entering the first functional combustion chamber 11 can be realized through the first functional fan 14 and the first functional gas regulating valve 13, the air-fuel ratio can be further accurately regulated, the power of the first functional combustion chamber 11 can be further regulated, and the combustion efficiency of the first functional combustion chamber 11 can be improved. Similarly, the second functional fan 24 can provide air for the second functional combustion chamber 21, the air flow can be controlled by adjusting the air quantity of the second functional fan 24, and the control of the air quantity and the air quantity entering the second functional combustion chamber 21 can be realized through the second functional fan 24 and the second functional gas adjusting valve 23, so that the air-fuel ratio can be more accurately adjusted, the power of the second functional combustion chamber 21 can be further adjusted, and the combustion efficiency of the second functional combustion chamber 21 can be improved. Here both the first functional fan 14 and the second functional fan 24 are blowers.

In one embodiment, the water inlet of the first functional heat exchange area 12 is connected to the first functional water inlet pipe 15, the water outlet of the first functional heat exchange area 12 is connected to the first functional water outlet pipe 16, the water inlet of the second functional heat exchange area 22 is connected to the second functional water inlet pipe 25, the water outlet of the second functional heat exchange area 22 is connected to the second functional water outlet pipe 26, a bypass water pipe 5 is arranged between the first functional water inlet pipe 15 and the second functional water inlet pipe 25, and an on-off valve 51 is arranged on the bypass water pipe 5.

Referring to fig. 1 again, the first functional heat exchange area 12 can heat the cold water provided by the first functional water inlet pipe 15 to obtain domestic hot water, and the domestic hot water is provided to the user through the first functional water outlet pipe 16; the second functional heat exchange area 22 can heat the cold water provided by the second functional water inlet pipe 25 to obtain heating hot water, and the heating hot water is provided to a heating end through the second functional water outlet pipe 26. By arranging the bypass water pipe 5 and the on-off valve 51 on the bypass water pipe 5, the first functional water inlet pipe 15 and the second functional water inlet pipe 25 are connected in parallel at the water source end, and when the pressure on one water path is insufficient, the other water path can be pressurized by opening the on-off valve 51.

In one embodiment, the first functional water inlet pipe 15 is provided with a first functional water pump 151, and the second functional water inlet pipe 25 is provided with a second functional water pump 251.

As shown in fig. 2, the second functional water pump 251 is used for pumping cold water at the water source end into the second functional water inlet pipe 25, so as to circularly and continuously provide heating hot water among the second functional water inlet pipe 25, the second functional heat exchange area 22, the second functional water outlet pipe 26 and the heating end, and correspondingly, the second functional down draught prevention device 321 in the smoke exhaust system is automatically opened to exhaust smoke; the second functional fan 24 and the second functional gas regulating valve 23 cooperate to regulate the air-fuel ratio in the second functional combustion chamber 21 to realize accurate temperature regulation of the heating hot water. The first functional water pump 151 is provided to provide zero cold water or water pressurization, etc., and can be turned on according to actual needs.

In one embodiment, a fume collecting hood partition 33 is arranged in the fume collecting hood 3, and the fume collecting hood partition 33 divides the fume collecting hood 3 into a first functional fume collecting cavity 31 and a second functional fume collecting cavity 32.

As shown in fig. 2, the fume collecting hood partition 33 is disposed in the fume collecting hood 3 and connected to the inner wall of the fume collecting hood 3 to divide the inner cavity of the fume collecting hood 3 into a first functional fume collecting cavity 31 and a second functional fume collecting cavity 32, and the first functional air down-draught preventing device 311 and the second functional air down-draught preventing device 321 can be simultaneously installed on the fume collecting hood partition 33, so that the fume collecting hood partition has good integration effect and compact structure.

In one embodiment, the bottom end of the fume collecting hood partition 33 is connected to the top end of the partition 101, and the top end of the fume collecting hood partition 33 is located at the junction of the fume exhaust pipe 4 and the fume collecting hood 3 and on the central axis of the fume exhaust pipe 4.

As shown in fig. 2, the bottom end of the fume collecting hood partition 33 is connected to the top end of the partition 101, so that the fume passing through the first functional heat exchange area 12 and the second functional heat exchange area 22 is conveniently guided to the fume exhaust pipe 4 along the fume collecting hood partition 33, and the fume is prevented from being disturbed and influencing the discharge. The top end of the fume collecting hood partition plate 33 is arranged at the junction of the fume exhaust pipe 4 and the fume collecting hood 3 and positioned on the central axis of the fume exhaust pipe 4, so that the first functional down draught preventing device 311 and the second down draught preventing device 321 are convenient to set and install.

It will be appreciated that, in combination with some embodiments described above, in practical applications, the partition 101 may include two sections connected to each other, the first section is used for separating the cavity to form the first functional combustion chamber 11 and the second functional combustion chamber 21, the second section is used for separating the cavity to form the first functional heat exchange area 12 and the second functional heat exchange area 22, the top end of the first section is connected to the bottom end of the second section, the bottom end of the fume collecting hood partition 33 is connected to the top end of the second section, and the partition 101 adopts a sectional structure to facilitate production, processing and assembly.

Embodiment two:

as shown in fig. 3, the first functional fan 14 and the second functional fan 24 may be installed in an overhead manner, and air is extracted to control the air quantity, which is an exhaust fan. Specifically, the first functional fan 14 is disposed in the first functional smoke collecting cavity 31, and the air outlet faces the first functional anti-downdraft device 311; the second functional fan 24 is disposed in the second functional smoke collecting chamber 32, and the air outlet faces the second functional anti-downdraft device 321. It will be appreciated that the air inlets of the first functional fan 14 and the second functional fan 24 face the first functional heat exchange area 12 and the second functional heat exchange area 22 respectively, and the air outlets face the smoke exhaust pipe 4, so that when the first functional fan 14 and the second functional fan 24 are started, air can enter the first functional combustion chamber 11 and the second functional combustion chamber 21 along the first functional air inlet channel 111 and the second functional air inlet channel 211 respectively, and be combusted and radiated after being mixed with fuel gas, and the air-fuel ratio of the two systems can be independently adjusted by adjusting the air flow of the first functional fan 14 and the second functional fan 24 and the air flow of the first functional fuel gas adjusting valve 13 and the second functional fuel gas adjusting valve 23 respectively, so that the two systems can independently provide domestic hot water or heating hot water meeting the needs respectively.

In the specific content of the above embodiment, any combination of the technical features may be performed without contradiction, and for brevity of description, all possible combinations of the technical features are not described, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The foregoing detailed description of the embodiments presents only a few embodiments of the present utility model, which are described in some detail and are not intended to limit the scope of the present utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. An integral dual system gas water heater, comprising:

the inner shell (100), the inner shell (100) is provided with a cavity, a partition board (101) is arranged in the cavity along the vertical direction, and the partition board (101) divides the cavity into a first accommodating cavity and a second accommodating cavity;

the first functional hot water system (1) comprises a first functional combustion chamber (11) and a first functional heat exchange area (12) which are sequentially arranged in the first accommodating cavity from bottom to top, a first functional air inlet channel (111) and a first functional air inlet pipeline (112) are arranged at the bottom end of the inner shell (100), the first functional air inlet channel (111) is communicated with the first accommodating cavity, a first functional gas regulating valve (13) is arranged in the first functional air inlet pipeline (112), and the first functional gas regulating valve (13) can regulate a first functional gas-air ratio of the first functional combustion chamber (11);

the second functional hot water system (2) comprises a second functional combustion chamber (21) and a second functional heat exchange area (22) which are sequentially arranged in a second accommodating cavity from bottom to top, a second functional air inlet channel (211) and a second functional air inlet pipeline (212) are arranged at the bottom end of the inner shell (100), the second functional air inlet channel (211) is communicated with the second accommodating cavity, a second functional gas regulating valve (23) is arranged on the second functional air inlet pipeline (212), and the second functional gas regulating valve (23) can regulate the second functional gas-air ratio of the second functional combustion chamber (21).

2. The integrated dual-system gas water heater according to claim 1, further comprising a fume collecting hood (3), wherein the fume collecting hood (3) is arranged at the top end of the inner shell (100), the fume collecting hood (3) is provided with a first functional fume collecting cavity (31) and a second functional fume collecting cavity (32) which are mutually separated, the bottom ends of the first functional fume collecting cavity (31) and the second functional fume collecting cavity (32) are respectively communicated with the top ends of the first functional heat exchange area (12) and the second functional heat exchange area (22), and the top ends of the first functional fume collecting cavity (31) and the second functional fume collecting cavity (32) are both communicated with the fume exhaust pipe (4).

3. The integrated dual-system gas water heater as claimed in claim 2, wherein a first functional anti-downdraft device (311) is arranged between the first functional smoke collecting cavity (31) and the smoke exhaust pipe (4) to conduct smoke unidirectionally from the first functional heat exchange area (12) to the smoke exhaust pipe (4), and a second functional anti-downdraft device (321) is arranged between the second functional smoke collecting cavity (32) and the smoke exhaust pipe (4) to conduct smoke unidirectionally from the second functional heat exchange area (22) to the smoke exhaust pipe (4).

4. The integrated dual system gas water heater of claim 2, further comprising a first functional fan (14) and a second functional fan (24), wherein the first functional fan (14) is disposed in the first functional air intake channel (111) with the air outlet facing the first functional combustion chamber (11), and wherein the second functional fan (24) is disposed in the second functional air intake channel (211) with the air outlet facing the second functional combustion chamber (21).

5. The integrated dual system gas water heater as claimed in claim 3, further comprising a first functional fan (14) and a second functional fan (24), the first functional fan (14) being disposed in the first functional smoke collection chamber (31) with the air outlet facing the first functional anti-downdraft device (311); the second functional fan (24) is arranged in the second functional smoke collecting cavity (32) and the air outlet faces the second functional anti-downdraft device (321).

6. The integrated dual system gas water heater as claimed in any one of claims 1-4, wherein a water inlet of the first functional heat transfer area (12) is connected to a first functional water inlet pipe (15), a water outlet of the first functional heat transfer area (12) is connected to a first functional water outlet pipe (16), a water inlet of the second functional heat transfer area (22) is connected to a second functional water inlet pipe (25), a water outlet of the second functional heat transfer area (22) is connected to a second functional water outlet pipe (26), a bypass water pipe (5) is arranged between the first functional water inlet pipe (15) and the second functional water inlet pipe (25), and an on-off valve (51) is arranged on the bypass water pipe (5).

7. The integrated dual-system gas water heater as claimed in claim 6, wherein the first functional water inlet pipe (15) is provided with a first functional water pump (151); the second functional water inlet pipe (25) is provided with a second functional water pump (251).

8. A gas water heater according to claim 3, wherein a fume collecting hood partition (33) is arranged in the fume collecting hood (3), the fume collecting hood partition (33) divides the fume collecting hood (3) into the first functional fume collecting cavity (31) and the second functional fume collecting cavity (32), the bottom end of the fume collecting hood partition (33) is connected to the top end of the partition (101), and the top end of the fume collecting hood partition (33) is located at the junction of the fume exhaust pipe (4) and the fume collecting hood (3) and on the central axis of the fume exhaust pipe (4).

9. The integrated dual system gas water heater as claimed in claim 8, wherein the first functional anti-downdraft device (311) and the second functional anti-downdraft device (321) are both check valves.

10. The integrated dual system gas water heater of claim 9, wherein the check valve comprises:

a wind shield (3111), one end of the wind shield (3111) is hinged with the fume collecting hood partition board (33), and the other end is a free end;

and a limiting piece (3112), wherein the limiting piece (3112) is arranged on the inner wall of the smoke exhaust pipe (4), and the free end is abutted with the limiting piece (3112) when the wind shield (3111) is in a closed state.