CN221005493U

CN221005493U - Mute combustion structure suitable for water heater

Info

Publication number: CN221005493U
Application number: CN202322313275.8U
Authority: CN
Inventors: 程志刚
Original assignee: Guangdong Yingran Electric Technology Co ltd
Current assignee: Guangdong Yingran Electric Technology Co ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-05-24
Anticipated expiration: 2033-08-25

Abstract

The utility model discloses a mute combustion structure suitable for a water heater, wherein a mute component comprises an outer cylinder body and an inner cylinder body which are communicated up and down; the outer cylinder body and the inner cylinder body are arranged at intervals and are provided with sound insulation cavities; the inner cylinder body is surrounded to form a combustion chamber; the outer cylinder body is provided with a plurality of air inlets which are communicated with the sound insulation cavity; an air inlet space groove communicated with the sound insulation cavity is formed at the top of the outer cylinder body and the top of the inner cylinder body at intervals; the inner cylinder body is provided with a plurality of air supply grooves which are communicated with the sound insulation cavity and the combustion chamber. According to the utility model, on one hand, the air flow in the sound insulation cavity can effectively take away the heat of the outer cylinder and the inner cylinder, so that the temperature of the mute component is reduced, the temperature rise change is reduced, and the safety performance is improved; on the other hand, the air flow forms an air flow barrier upwards at the inner side of the inner cylinder body, so that high-temperature flue gas and the inner cylinder body can be separated, the heat of the combustion chamber is effectively isolated from being transferred to the inner cylinder body, and the temperature rise change is further reduced.

Description

Mute combustion structure suitable for water heater

Technical Field

The utility model relates to the technical field of gas heating equipment, in particular to a mute combustion structure suitable for a water heater.

Background

In patent CN201822090633.2, a cluster silver nest energy gathering and silencing device is proposed. This silence device reduces the loss of heat through silence insulating layer, separates the propagation of burning sound.

However, in the actual use process, the energy-gathering effect of the swarm silver nest energy-gathering silencing device is found to be too strong, and the temperature rise is obvious; when the water heater or the wall-mounted boiler pauses water supply and provides hot water again, the temperature of a small amount of hot water output is too high, users are easy to scald, and potential safety hazards exist; in addition, the shell of the high-temperature silencing device is easy to damage the internal elements of the water heater or the wall-mounted boiler.

Therefore, a more rational quiet combustion structure is required to be designed to reduce the temperature rise of the quiet combustion chamber.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a mute combustion structure suitable for a water heater.

The technical scheme adopted by the embodiment of the utility model for solving the technical problems is as follows: a mute combustion structure suitable for a water heater comprises a fan assembly, a heat exchange assembly, a mute assembly and a burner assembly which are arranged from top to bottom; the silencing assembly comprises an outer cylinder body and an inner cylinder body which are vertically communicated; the outer cylinder body and the inner cylinder body are arranged at intervals and are provided with sound insulation cavities; the inner cylinder body is surrounded to form a combustion chamber;

The outer cylinder body is provided with a plurality of air inlets which are communicated with the sound insulation cavity; an air inlet space groove communicated with the sound insulation cavity is formed at the top of the outer cylinder body and the top of the inner cylinder body at intervals; the inner cylinder body is provided with a plurality of air supply grooves which are communicated with the sound insulation cavity and the combustion chamber.

Optionally, the air supply grooves are vertically spaced to form a plurality of groups, and the air supply grooves of the same group are circumferentially distributed around the combustion chamber in a ring shape.

Optionally, the air supply grooves of two vertically adjacent groups are distributed in an inserting way and distributed in a 'product' -shaped structure.

Optionally, the air supply groove is a long strip groove structure extending along the circumferential direction of the inner cylinder.

Optionally, the inner cylinder is provided with a plurality of first profiling, and the first profiling extends along the axis of the combustion chamber; the air supply groove is arranged in the first profiling.

Optionally, the air inlets are vertically spaced and provided with a plurality of groups; a plurality of air outlets of the same group are annularly distributed around the sound insulation cavity along the circumferential direction.

Optionally, the outer cylinder is provided with a plurality of second profiling.

Optionally, the tops of the outer cylinder and the inner cylinder are bent towards the top to form an outwards bent guide part.

Optionally, the inner cylinder is made of stainless steel material, and the outer cylinder is made of galvanized sheet material.

Optionally, the wall thickness of the inner cylinder body is less than or equal to 0.35mm.

The utility model has the beneficial effects that: the silence subassembly is installed between heat exchange subassembly and combustor subassembly, through the sound insulation chamber, reduces the loss of burning heat to and separation burning sound is towards the transmission of a section of thick bamboo outside, reaches the effect of silence. The outer cylinder body is provided with an air inlet, the top of the outer cylinder body and the top of the inner cylinder body are provided with air inlet slots at intervals, the air inlet and the air inlet slots can enable external air to pass through the outer cylinder body and then to be conveyed towards the sound insulation cavity under the driving of air flow in the fan and the combustion chamber, and the external air is sent out towards the upper part of the combustion chamber through the air supply slots. On one hand, the air flow in the sound insulation cavity can effectively take away the heat of the outer cylinder body and the inner cylinder body, reduce the temperature of the mute component, reduce the temperature rise change and improve the safety performance; on the other hand, the air flow forms an air flow barrier upwards at the inner side of the inner cylinder body, so that high-temperature flue gas and the inner cylinder body can be separated, the heat of the combustion chamber is effectively isolated from being transferred to the inner cylinder body, and the temperature rise change is further reduced.

In order to make the above objects, features and advantages of the present utility model more comprehensible, preferred embodiments accompanied with figures are described in detail below.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic view of a silent combustion structure according to the present utility model;

Fig. 2 is a schematic structural view of the mute assembly of fig. 1;

fig. 3 is a cross-sectional view of the muting assembly of fig. 2.

Description of main reference numerals:

10. A fan assembly; 20. a heat exchange assembly; 30. a mute assembly; 31. an outer cylinder; 32. an inner cylinder; 34. an air inlet; 35. an air inlet space groove; 36. an air supply groove; 37. a first profiling; 38. a second profiling; 39. an outward bending guide part; 40. a burner assembly; 50. a sound-insulating cavity; 60. a combustion chamber.

Detailed Description

Reference will now be made in detail to the present embodiments of the present utility model, examples of which are illustrated in the accompanying drawings, wherein the accompanying drawings are used to supplement the description of the written description so that one can intuitively and intuitively understand each technical feature and overall technical scheme of the present utility model, but not to limit the scope of the present utility model.

In the description of the present utility model, plural means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and the above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description of the present utility model and to simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present utility model.

In the present utility model, unless clearly defined otherwise, the terms "disposed," "mounted," "connected," and the like are to be construed broadly and may be connected directly or indirectly through an intermediary; the connecting device can be fixedly connected, detachably connected and integrally formed; may be a mechanical connection; may be a communication between two elements or an interaction between two elements. The specific meaning of the words in the utility model can be reasonably determined by a person skilled in the art in combination with the specific content of the technical solution.

Examples

Referring to fig. 1 to 3, the mute combustion structure for a water heater according to the present utility model includes a fan assembly 10, a heat exchange assembly 20, a mute assembly 30 and a burner assembly 40 arranged from top to bottom; the mute assembly 30 comprises an outer cylinder 31 and an inner cylinder 32 which are vertically communicated; the outer cylinder 31 and the inner cylinder 32 are arranged at intervals and are provided with a sound insulation cavity 50; the inner cylinder 32 encloses a combustion chamber 60;

The outer cylinder 31 is provided with a plurality of air inlets 34, and the air inlets 34 are communicated with the sound insulation cavity 50; an air inlet slot 35 communicated with the sound insulation cavity 50 is formed at intervals between the top of the outer cylinder 31 and the top of the inner cylinder 32; the inner cylinder 32 is provided with a plurality of air supply grooves 36, and the air supply grooves 36 are communicated with the sound insulation cavity 50 and the combustion chamber 60.

In the utility model, the mute component 30 is arranged between the heat exchange component 20 and the burner component 40, and through the sound insulation cavity 50, the loss of combustion heat is reduced, and the transmission of combustion sound to the outside of the cylinder is blocked, so as to achieve the mute effect. The outer cylinder 31 is provided with an air inlet 34, air inlet slots 35 are formed at intervals at the tops of the outer cylinder 31 and the inner cylinder 32, and the air inlet 34 and the air inlet slots 35 can enable external air to pass through the outer cylinder 31 and then to be conveyed towards the sound insulation cavity 50 under the driving of air flow in the fan and the combustion chamber 60 and to be sent out towards the upper part of the combustion chamber 60 through the air supply slots 36. On the one hand, the air flow in the sound insulation cavity 50 can effectively take away the heat of the outer cylinder 31 and the inner cylinder 32, reduce the temperature of the mute assembly 30, reduce the temperature rise change and improve the safety performance; on the other hand, the air flow forms an air flow barrier upwards on the inner side of the inner cylinder 32, so that high-temperature flue gas and the inner cylinder 32 can be separated, the heat transfer of the combustion chamber 60 towards the inner cylinder 32 is effectively isolated, and the temperature rise change is further reduced.

In the present embodiment, the air supply grooves 36 are vertically spaced apart by a plurality of groups, and the plurality of air supply grooves 36 of the same group are circumferentially distributed around the combustion chamber 60 in a ring shape. And a plurality of vertical groups of air supply inlets are formed and distributed annularly around the combustion chamber 60, so that secondary air can be supplemented for a plurality of areas such as the tip, the middle part and the tail part of flame combustion, and the secondary air can be supplemented more effectively and completely.

Specifically, the air supply grooves 36 of two vertically adjacent groups are distributed in an empty manner and distributed in a 'product' -shaped structure. The air supply groove 36 structure which is arranged in the shape of a 'product' and is arranged in the upper row and the lower row in the air insertion way can effectively and completely cover the inner side of the inner cylinder 32 and effectively separate the high-temperature flue gas from the inner cylinder 32, thereby preventing the high-temperature flue gas from being transmitted towards the cylinder.

In the present embodiment, the air supply groove 36 has an elongated groove structure extending along the circumferential direction of the inner cylinder 32. The long-groove-shaped air supply groove 36 is formed by punching on one side of the inner cylinder 32, and can effectively output the effect of forming an air flow barrier.

In this embodiment, in order to improve the physical strength of the inner cylinder 32 and reduce resonance problems during operation, the inner cylinder 32 is provided with a plurality of first profiling 37, the first profiling 37 extending along the axis of the combustion chamber 60; the air supply duct 36 is provided in the first profiling 37.

In this embodiment, in order to match the structure of the multi-layer air supply slot 36, to achieve the flow effect of effective and smooth air intake and air supply, the air inlets 34 are vertically spaced apart by a plurality of groups; several air inlets of the same group are circumferentially distributed around the sound insulation chamber 50 in a ring shape.

In this embodiment, in order to improve the physical strength of the outer cylinder 31 and reduce resonance problems during operation, the outer cylinder 31 is provided with a plurality of second profiling 38.

In the present embodiment, the top portions of the outer cylinder 31 and the inner cylinder 32 are folded toward the bottom to form the outward-bending guide portion 39. The outward bending guide part 39 can improve the physical strength of the cylinder, and can guide and position the heat exchange assembly 20, thereby facilitating the guide assembly.

In this embodiment, to ensure the corrosion resistance and heat resistance of the silence component 30, the inner cylinder 32 is made of stainless steel material, and the outer cylinder 31 is made of galvanized sheet material.

Specifically, due to the heat conduction characteristic of stainless steel, thicker stainless steel plates can store more heat, so that water supply is stopped and temperature rise is obvious. Therefore, the inner cylinder 32 is made of a thinner stainless steel plate, so that the temperature rise can be reduced, and the cost can be reduced. Specifically, the wall thickness of the inner cylinder 32 is 0.35mm or less.

Of course, the present utility model is not limited to the above-described embodiments, and those skilled in the art can make equivalent modifications and substitutions without departing from the spirit of the present utility model, and these equivalent modifications and substitutions are included in the scope of the present utility model as defined in the appended claims.

Claims

1. A mute combustion structure suitable for a water heater comprises a fan assembly (10), a heat exchange assembly (20), a mute assembly (30) and a burner assembly (40) which are arranged from top to bottom; the silencer is characterized in that the silencer assembly (30) comprises an outer cylinder (31) and an inner cylinder (32) which are vertically communicated; the outer cylinder body (31) and the inner cylinder body (32) are arranged at intervals and are provided with a sound insulation cavity (50); the inner cylinder body (32) is surrounded to form a combustion chamber (60);

A plurality of air inlets (34) are formed in the outer cylinder body (31), and the air inlets (34) are communicated with the sound insulation cavity (50); an air inlet space groove (35) communicated with the sound insulation cavity (50) is formed at the top of the outer cylinder body (31) and the top of the inner cylinder body (32) at intervals; the inner cylinder body (32) is provided with a plurality of air supply grooves (36), and the air supply grooves (36) are communicated with the sound insulation cavity (50) and the combustion chamber (60).

2. The silent combustion structure for a water heater as recited in claim 1, wherein: the air supply grooves (36) are vertically separated into a plurality of groups, and the air supply grooves (36) of the same group are circumferentially distributed around the combustion chamber (60) in a ring shape.

3. The silent combustion structure for a water heater as recited in claim 2, wherein: the air supply grooves (36) of two vertically adjacent groups are distributed in a hollow inserting mode and distributed in a 'product' -shaped structure.

4. The silent combustion structure for a water heater as recited in claim 2, wherein: the air supply groove (36) has a long-strip-shaped groove structure extending along the circumferential direction of the inner cylinder (32).

5. The silent combustion structure for a water heater as recited in claim 1, wherein: the inner cylinder (32) is provided with a plurality of first profiling (37), and the first profiling (37) extends along the axis of the combustion chamber (60); the air supply groove (36) is arranged in the first profiling (37).

6. The silent combustion structure for a water heater as recited in claim 1, wherein: the air inlets (34) are vertically spaced into a plurality of groups; the plurality of air outlets of the same group are circumferentially distributed around the sound insulation cavity (50) in a ring shape.

7. The silent combustion structure for a water heater as recited in claim 1, wherein: the outer cylinder (31) is provided with a plurality of second profiling (38).

8. The silent combustion structure for a water heater as recited in claim 1, wherein: the top parts of the outer cylinder body (31) and the inner cylinder body (32) are bent towards the top to form an outwards bent guide part (39).

9. The silent combustion structure for a water heater as recited in claim 1, wherein: the inner cylinder body (32) is made of stainless steel materials, and the outer cylinder body (31) is made of galvanized sheet materials.

10. The silent combustion structure for a water heater as claimed in claim 9, wherein: the wall thickness of the inner cylinder body (32) is less than or equal to 0.35mm.