CN221301598U - Combustion module and water heating equipment using same - Google Patents

Abstract

The utility model provides a combustion module and a hot water device using the same, comprising: a housing having a combustion chamber; an air inlet is formed in the outer side face of the shell and communicated with the combustion cavity; a burner disposed within the combustion chamber; the heat exchangers are arranged above the burner side by side; each group of heat exchangers is provided with an independent water inlet end, an independent water outlet end and an independent heat exchange pipeline, and the heat exchange pipeline is communicated with the water inlet end and the water outlet end. Compared with the prior art, on the premise of ensuring the same hot water yield, the multiple groups of heat exchangers are integrated in the same combustion module, so that the burner can heat multiple groups of heat exchangers arranged side by side simultaneously, and the occupied space of the combustion module is effectively reduced.

Description

Combustion module and water heating equipment using same

Technical Field

The utility model belongs to the technical field of combustion modules, and particularly relates to a combustion module and hot water equipment using the same.

Background

In the prior art, the gas positive-displacement water heater mainly uses a combustion module to heat water, and the gas positive-displacement water heater is manufactured in the past by the applicant as shown in fig. 1.

However, due to the structure, each combustion module is provided with an independent alternating current variable speed fan, so that the production cost is increased, and meanwhile, each combustion module occupies a corresponding space and is arranged in a separated mode, and the occupied space is large; in addition, the common condensing module can also increase the corresponding length according to the interval distance between each combustion module, and can also change phase to increase the production cost and the occupied space.

Disclosure of utility model

In order to overcome the technical defects, the utility model provides a combustion module and hot water equipment using the same, which can solve the technical problems of increased production cost and large occupied space of the gas positive displacement water heater in the background technology.

The utility model is realized according to the following technical scheme:

The utility model provides a combustion module, which comprises:

A housing having a combustion chamber; an air inlet is formed in the outer side face of the shell and communicated with the combustion cavity;

A burner disposed within the combustion chamber;

The heat exchangers are arranged above the burner side by side; each group of heat exchangers is provided with an independent water inlet end, an independent water outlet end and an independent heat exchange pipeline, and the heat exchange pipeline is communicated with the water inlet end and the water outlet end.

Compared with the prior art, on the premise of ensuring the same hot water yield, the multiple groups of heat exchangers are integrated in the same combustion module, so that the burner can heat multiple groups of heat exchangers arranged side by side simultaneously, and the occupied space of the combustion module is effectively reduced.

In one embodiment, the heat exchange pipeline comprises a plurality of straight sections of pipes and a plurality of curved sections of pipes, and the straight sections of pipes are positioned above the burner;

The upper ends of the left side and the right side of the shell are lower than the upper ends of the front side and the rear side of the shell, so that a clearance area is formed on the left side and the right side of the shell, and the clearance area is used for accommodating a plurality of sections of bent pipes.

In one embodiment, the housing includes a front wall panel, a rear wall panel, a left wall panel, and a right wall panel, and the air inlets are provided on the front wall panel, the rear wall panel, the left wall panel, and the right wall panel.

In one embodiment, the air inlets are provided in upper portions of the front, rear, left and right wall panels, respectively.

In one embodiment, the upper parts of the front wall plate and the rear wall plate are provided with positioning parts, and the lower ends of the positioning parts are propped against the upper ends of the left wall plate and the right wall plate;

The lower ends of the front wall plate, the rear wall plate, the left wall plate and the right wall plate are respectively provided with a mounting end.

In one embodiment, the housing further comprises four inner side plates disposed on the peripheral side of the burner and disposed corresponding to the front, rear, left and right wall plates; the four inner side plates are connected and enclosed to form the combustion chamber;

Wherein, the upper ends of the inner side plates positioned at the left side and the right side support a plurality of groups of heat exchangers.

In one embodiment, the water inlet end and the water outlet end are both disposed on the same side of the heat exchanger.

In one embodiment, two adjacent groups of heat exchangers are closely arranged.

In one embodiment, the combustion module further comprises a fan in communication with the air outlet at the top of the housing.

The utility model also provides a water heating device comprising the combustion module.

Drawings

The utility model is described in further detail below with reference to the attached drawing figures, wherein:

FIG. 1 is a schematic diagram of a prior art gas water heater;

FIG. 2 is a top view of the combustion module of the present utility model;

FIG. 3 is a front view of the combustion module of the present utility model;

FIG. 4 is a right side view of the combustion module of the present utility model;

FIG. 5 is a left side view of the combustion module of the present utility model;

FIG. 6 is an internal schematic view of the combustion module of the present utility model;

FIG. 7 is a schematic illustration of the present utility model with a combustion module assembled to a gas-fired positive displacement water heater;

FIG. 8 is a second schematic view of the present utility model with the combustion module assembled to a gas-fired positive displacement water heater.

Reference numerals illustrate:

10 shell, 101 air inlet, 102 installation end, 10a combustion chamber, 110 front wall plate, 120 back wall plate, 130 left wall plate, 140 right wall plate, 150 inner side plate, 20 burner, 30 heat exchanger, 310 water inlet end, 320 water outlet end, 330 heat exchange pipeline, 331 elbow pipe, 40 fan.

Detailed Description

The preferred embodiments of the present utility model will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present utility model only, and are not intended to limit the present utility model.

In order to better illustrate the present utility model, the present utility model will be described in further detail below with reference to the accompanying drawings.

It should be understood that the described embodiments are merely some, but not all 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 application, are intended to be within the scope of the embodiments of the present application.

The terminology used in the embodiments of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of embodiments of the application. As used in this application and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the application. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the application as detailed in the accompanying claims. In the description of the present application, it should be understood that the terms "first," "second," "third," and the like are used merely to distinguish between similar objects and are not necessarily used to describe a particular order or sequence, nor should they be construed to indicate or imply relative importance. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

The high power gas-fired positive displacement water heater produced and manufactured in the past by the applicant as shown in fig. 1 can be understood as the structure of most water heaters in the prior art. In order to realize heating of a large amount of water, the gas positive-displacement water heater adopts a plurality of independent combustion modules to heat the water at the same time, the independent combustion modules are arranged in an up-down distribution mode, and each combustion module occupies a corresponding space and is arranged in a separated mode, so that the occupied space is large; in order to enable each combustion module to work independently, each combustion module is provided with an independent alternating current variable speed fan, so that the production cost is increased; in addition, in order to realize heat recovery, a plurality of combustion modules can share a condensation module to cool flue gas and waste heat recovery, and the condensation module that shares can increase corresponding length in response to the interval distance between every combustion module, also can change looks increase manufacturing cost and occupation space.

In view of the above, as shown in fig. 2 to 8, the present utility model provides a combustion module, which includes: a housing 10 having a combustion chamber 10a; an air inlet 101 is formed in the outer side surface of the shell 10, and the air inlet 101 is communicated with the combustion chamber 10a; a burner 20 disposed within the combustion chamber 10a; a plurality of groups of heat exchangers 30, wherein the heat exchangers 30 are arranged above the burner 20 side by side; each group of heat exchangers 30 is provided with an independent water inlet end 310, an independent water outlet end 320 and a heat exchange pipeline 330, and the heat exchange pipeline 330 is communicated with the water inlet end 310 and the water outlet end 320.

Specifically, the air outside the combustion module enters the combustion chamber 10a through the air inlet 101 on the outer side surface of the casing 10 to be mixed with the fuel gas in the combustion chamber 10a, a plurality of flames are generated under the combustion action of the burner 20, and the high-temperature flue gas generated by the plurality of flames is utilized to heat the plurality of groups of heat exchangers 30; wherein, each group of heat exchangers 30 is provided with an independent water inlet end 310, an independent water outlet end 320 and an independent heat exchange pipeline 330, and water enters the heat exchange pipeline 330 from the water inlet end 310 and flows out through the water outlet end 320 after being heated into hot water, so as to output the hot water to the outside. On the premise of ensuring the same hot water yield, the heat exchangers 30 are integrated in the same combustion module, so that high-temperature flue gas generated by the burner 20 can heat the heat exchangers 30 arranged side by side in multiple groups at the same time, and the occupied space of the combustion modules of the prior art (namely, the occupied space of the combustion modules and the interval space between the two combustion modules) is effectively reduced. In addition, the application integrates a plurality of heat exchangers 30 into one combustion module, so that the combustion module is convenient to install in the gas positive displacement water heater, the installation step of one combustion module is omitted, and the assembly efficiency is effectively improved.

It should be noted that, since the two heat exchangers 30 are integrated in the same combustion module, the volume of the combustion module of the present application is increased correspondingly compared to a single group of heat exchangers 30 of the prior art; for this purpose, the structure of the gas-fired positive-displacement water heater assembled with the present application is also adapted accordingly, as shown, the combustion module being arranged above the holding tank so that there is sufficient space to accommodate the combustion module. Preferably, the number of the heat exchangers 30 is two, and the two groups of the heat exchangers 30 ensure the same hot water yield, and the combustion modules integrated by the two groups of the heat exchangers 30 only increase part of volume correspondingly, so that the assembly into the gas positive-displacement water heater is not influenced.

In one embodiment, the heat exchange pipeline 330 includes a plurality of straight pipes and a plurality of bent pipes 331, wherein the straight pipes are located above the burner 20 and are used for exchanging heat with high-temperature flue gas, so that water in the straight pipes is heated to be hot water; the bent pipe 331 is connected to two adjacent straight pipes to form an S-shaped heat exchange pipe 330, which is helpful for improving heat exchange efficiency and heat exchange speed. The upper ends of the left and right sides of the housing 10 are lower than the upper ends of the front and rear sides of the housing 10, so that a hollow area is formed on the left and right sides of the housing 10, and the hollow area is used for accommodating a plurality of sections of the bent pipe 331, so that the space layout of the housing 10 is reasonably utilized, and the combustion module structure of the application is compact.

In one embodiment, the housing 10 includes a front wall panel 110, a rear wall panel 120, a left wall panel 130, and a right wall panel 140, and the air inlets 101 are disposed on each of the front wall panel 110, the rear wall panel 120, the left wall panel 130, and the right wall panel 140. According to the application, the air inlets 101 are arranged on the four sides of the combustion module, namely the combustion module is provided with the four air inlets 101, so that a four-side air inlet mode is realized, the air inlet amount is increased, the burner 20 can fully burn, and the emission of carbon and nitrogen oxides (NOx) is reduced; the application realizes full combustion through the structure, so that the emission and combustion stability of the gas positive displacement water heater with the combustion module is superior to that of a full premix combustion gas positive displacement water heater, the material cost is greatly reduced, the thermal load adjustment range can reach 20% -100%, the combustion is stable, no backfire, no flame separation and small noise are realized, and the application is more advantageous in being applied to the combination of high-power water heating/heating module furnaces.

Further, the air inlets 101 are respectively disposed at the upper parts of the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140, under the action of the fan 40, air outside the combustion module enters the combustion chamber 10a at the air inlets 101, and flows downwards to the lower part of the burner 20 to be mixed with fuel gas, heat of the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140 is taken away in the air flowing process, the surface temperature of the casing 10 is reduced, and the air is preheated.

Further, since the shell 10 of the present application is formed by connecting and enclosing the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140, in order to facilitate positioning and assembly, the upper parts of the front wall plate 110 and the rear wall plate 120 are provided with positioning parts, and the lower ends of the positioning parts are abutted against the upper ends of the left wall plate 130 and the right wall plate 140 so as to determine the relative positions of the front wall plate 110 and the rear wall plate 120 and the left wall plate 130 and the right wall plate 140, thereby completing positioning; furthermore, the lower ends of the front, rear, left and right wall plates 110, 120, 130 and 140 are provided with mounting ends 102 so that the front, rear, left and right wall plates 110, 120, 130 and 140 are assembled with the gas-fired positive displacement water heater through the mounting ends.

Preferably, the mounting ends are bent pieces, and the lower ends of the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140 of the combustion module are bent and formed into bent pieces, and then are mounted and connected with the gas positive displacement water heater through bolts.

In one embodiment, the housing 10 further includes four inner side plates 150, and four inner side plates 150 are disposed at the circumferential side of the burner 20 and are disposed corresponding to the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140; four inner plates 150 are connected and enclosed to form the combustion chamber 10a; wherein the upper ends of the inner plates 150 positioned at the left and right sides support a plurality of groups of the heat exchangers 30. Specifically, the four inner side plates 150 are connected and enclosed to form the combustion chamber 10a, and each inner side plate 150 is provided with heat insulation cotton, which is helpful for insulating high temperature in the flame and the combustion chamber, and avoids overhigh surface temperatures of the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140; in addition, the upper ends of the inner plates 150 positioned at the left and right sides support a plurality of heat exchangers 30 so as to support and fix the plurality of heat exchangers 30.

Further, the four inner side plates and the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140 form a cooling channel, after the air enters the cooling channel through the air inlet, the air flows downwards to the lower part of the burner 20 to be mixed with the fuel gas, and the heat of the front wall plate 110, the rear wall plate 120, the left wall plate 130 and the right wall plate 140 is taken away in the air flowing process, so that the surface temperature of the shell 10 is reduced, and the air is preheated. Wherein openings may be provided below the inner side plate for air in the cooling channels to flow below the burner.

Further, an igniter is provided on one of the inner side plates 150 to ignite and start the burner 20.

In one embodiment, the water inlet end 310 and the water outlet end 320 are disposed on the same side of the heat exchanger 30, so as to perform uniform connection on pipes, simplify the installation process, and facilitate planning of the position layout.

In one embodiment, the burner 20 includes a plurality of fire rows disposed side by side; the arrangement direction of the plurality of groups of heat exchangers 30 is the same as the arrangement direction of the plurality of fire rows. Specifically, the fire rows are sequentially arranged in the front-to-back direction, the heat exchangers 30 are also arranged in the front-to-back direction, and two adjacent heat exchangers 30 are closely arranged, so that the occupied space is reduced.

In one embodiment, the combustion module further includes a fan 40, which is communicated with the air outlet at the top of the housing 10, and is used for providing negative pressure for the combustion chamber 10a, sucking air outside the combustion module into the combustion chamber 10a through the air inlet 101, and the high-temperature flue gas in the combustion chamber 10a moves upwards under the action of the negative pressure and is discharged outside the combustion module or enters the condensation module for waste heat recovery.

Preferably, the fans 40 are direct current variable frequency fans 40, and the number is 1, so as to reduce manufacturing cost.

The utility model also provides a water heating device comprising the combustion module. It should be noted that the water heater of the present utility model is not limited to the volumetric gas water heater, but can be applied to a gas water heating/heating module boiler.

Variations and modifications to the above would be obvious to persons skilled in the art to which the utility model pertains from the foregoing description and teachings. Therefore, the utility model is not limited to the specific embodiments disclosed and described above, but some modifications and changes of the utility model should be also included in the scope of the claims of the utility model. In addition, although specific terms are used in the present specification, these terms are for convenience of description only and do not limit the present utility model in any way.

Claims (10)

1. A combustion module, comprising:

A housing having a combustion chamber; an air inlet is formed in the outer side face of the shell and communicated with the combustion cavity;

A burner disposed within the combustion chamber;

The heat exchangers are arranged above the burner side by side; each group of heat exchangers is provided with an independent water inlet end, an independent water outlet end and an independent heat exchange pipeline, and the heat exchange pipeline is communicated with the water inlet end and the water outlet end.

2. The combustion module of claim 1, wherein:

The heat exchange pipeline comprises a plurality of sections of straight pipes and a plurality of sections of bent pipes, and the straight pipes are positioned above the burner;

The upper ends of the left side and the right side of the shell are lower than the upper ends of the front side and the rear side of the shell, so that a clearance area is formed on the left side and the right side of the shell, and the clearance area is used for accommodating a plurality of sections of bent pipes.

3. The combustion module of claim 1, wherein:

the shell comprises a front wall plate, a rear wall plate, a left wall plate and a right wall plate, wherein the front wall plate, the rear wall plate, the left wall plate and the right wall plate are all provided with air inlets.

4. A combustion module according to claim 3, wherein:

The air inlets are respectively arranged at the upper parts of the front wall plate, the rear wall plate, the left wall plate and the right wall plate.

5. A combustion module according to claim 3, wherein:

The upper parts of the front wall plate and the rear wall plate are provided with positioning parts, and the lower ends of the positioning parts are propped against the upper ends of the left wall plate and the right wall plate;

The lower ends of the front wall plate, the rear wall plate, the left wall plate and the right wall plate are respectively provided with a mounting end.

6. A combustion module according to claim 3, wherein:

The shell also comprises four inner side plates, wherein the four inner side plates are arranged on the periphery of the burner and correspond to the front wall plate, the rear wall plate, the left wall plate and the right wall plate; the four inner side plates are connected and enclosed to form the combustion chamber;

Wherein, the upper ends of the inner side plates positioned at the left side and the right side support a plurality of groups of heat exchangers.

7. The combustion module of claim 1, wherein:

the water inlet end and the water outlet end are both arranged on the same side of the heat exchanger.

8. The combustion module of claim 1, wherein:

And two adjacent groups of heat exchangers are closely arranged.

9. The combustion module of claim 1, wherein:

The combustion module further comprises a fan which is communicated with the air outlet at the top of the shell.

10. A water heating apparatus comprising a combustion module as claimed in any one of claims 1 to 9.