阅读说明：本技术 壁挂炉 (Wall-mounted stove ) 是由 万博臣 贾铌 游卫刚 梁桂源 于 2019-09-12 设计创作，主要内容包括：本发明涉及壁挂炉技术领域,具体涉及一种壁挂炉。所述壁挂炉包括：壁挂炉主体,设置有供烟气通过的烟道；换热器,安装在烟道中,与通过烟道中的烟气换热；以及气流调节装置,气流调节装置安装在壁挂炉主体的烟道上,对流经换热器的烟气气流进行扰动,并在与烟气气流垂直对应的垂直截面内,降低垂直截面不同区域上不同烟气气流之间的流速差,进而通过降低垂直截面不同区域上不同烟气气流之间的流速差,使得流经换热器的烟气气流在换热器的不同位置之间的流速更加均匀,减少或避免了壁挂炉中换热器工作时局部烟气流速过大而其余区域烟气流速较小的情况出现,进而提升了壁挂炉中换热器的热交换效率。(The invention relates to the technical field of wall-mounted furnaces, in particular to a wall-mounted furnace. The hanging stove includes: the wall-mounted boiler main body is provided with a flue for smoke to pass through; the heat exchanger is arranged in the flue and exchanges heat with the flue gas passing through the flue; the gas flow adjusting device is arranged on a flue of the wall-hanging furnace main body and is used for disturbing the flue gas flow passing through the heat exchanger, and in a vertical section vertically corresponding to the flue gas flow, the flow speed difference between different flue gas flows in different areas of the vertical section is reduced, so that the flow speed of the flue gas flow passing through the heat exchanger is more uniform among different positions of the heat exchanger by reducing the flow speed difference between different flue gas flows in different areas of the vertical section, the situation that the flow speed of partial flue gas is too high and the flow speed of the flue gas in other areas is low when the heat exchanger works in the wall-hanging furnace is reduced or avoided, and the heat exchange efficiency of the heat exchanger in the wall-hanging furnace is further improved.)

1. A wall hanging stove, comprising:

the wall-mounted boiler comprises a wall-mounted boiler main body (10) and a flue (11) for smoke to pass through;

The heat exchanger (20) is arranged in the flue (11) and exchanges heat with the flue gas passing through the flue (11); and

Airflow adjusting device, airflow adjusting device installs hanging stove main part (10) on flue (11), the convection current is carried out the flue gas air current of heat exchanger (20) disturbs to in the vertical cross section who corresponds with the flue gas air current is perpendicular, reduce the difference in flow between the different flue gas air currents on the different regions of vertical cross section.

2. The hanging stove according to claim 1, characterized in that the airflow adjusting device comprises an orifice plate member (30) installed on the flue (11), the orifice plate member (30) is provided with a plurality of vent holes (31) for the flue gas to pass through, and the orifice plate member (30) passes through the vent holes (31) to reduce the flow speed difference between different flue gas flows at different positions of the vertical section.

3. The fireplace as claimed in claim 2, characterized in that the sum of the ventilation areas of the ventilation holes (31) distributed in the high flue gas flow velocity area is smaller than the sum of the ventilation areas of the ventilation holes (31) distributed in the low flue gas flow velocity area.

4. The wall hanging stove according to claim 3, characterized in that the perforated plate member (30) includes a base plate (33) on which the ventilation holes (31) are provided, wherein the ventilation holes (31) are distributed less densely in a high flue gas flow velocity area than the ventilation holes (31) are distributed densely in a low flue gas flow velocity area.

5. Wall hanging stove according to claim 4, characterized in that the variation of the density of the ventilation holes (31) corresponds to the difference in flow speed between the different flue gas flows at different positions of the vertical section.

6. The wall hanging stove according to claim 3, characterized in that the perforated plate member (30) comprises a base plate (33) on which the ventilation holes (31) are arranged, wherein the size of the holes (31) in the high flue gas flow velocity area is smaller than the size of the holes (31) in the low flue gas flow velocity area.

7. Wall hanging stove according to claim 2, characterised in that the direction of extension of the aperture plate (30) inside the flue (11) is perpendicular to the direction of flow of the flue gas stream.

8. Wall hanging stove according to claim 2, characterised in that the aperture plate (30) is arranged inside the chimney (11) blocking the chimney (11).

9. Wall hanging stove according to claim 1, characterised in that the gas flow regulating means comprise a grid element (40) mounted on the flue (11), the grid element (40) being formed with a plurality of grid holes (41) through which the flue gas flow can pass, the grid element (40) passing through the grid holes (41) to reduce the flow velocity difference between the different flue gas flows at different positions of the vertical section.

10. The wall-hanging stove according to claim 9, characterized in that the grid holes (41) are distributed less densely in the high flue gas flow velocity region than in the low flue gas flow velocity region.

11. the wall hanging stove according to any one of claims 1 to 10, further comprising a fan (60) provided on the flue (11), the fan (60) to increase the power of the flue gas flow circulating in the flue (11).

12. The wall hanging stove according to claim 11, characterized in that the fan (60) is provided at a position of a smoke outlet of the wall hanging stove, and the air flow adjusting device is provided between the fan (60) and the heat exchanger (20).

Technical Field

The invention relates to the technical field of wall-mounted furnaces, in particular to a wall-mounted furnace.

Background

With the improvement of living standard of people, the wall-hanging stove is gradually widely used in the home. At present, in the working process of a wall-mounted furnace, high-temperature flue gas generated by burning fuel gas by a burner in the wall-mounted furnace flows through a heat exchanger, and circulating water in the heat exchanger is heated by the high-temperature flue gas to generate hot water for users to use.

However, in the actual use test process, the flue gas discharged after heat exchange through the heat exchanger in the wall-mounted furnace still has more heat, and the high-temperature flue gas is discharged from the air outlet without being subjected to heat exchange in the heat exchanger, which means that the heat exchange efficiency of the heat exchanger is lower. In contrast, most researchers improve the heat exchange efficiency of the heat exchanger in the wall-hanging furnace by improving the structure of the heat exchanger, but the improvement of the heat exchange efficiency is limited.

Disclosure of Invention

The invention mainly aims to provide a wall-mounted furnace to solve the problem that a heat exchanger in the wall-mounted furnace in the prior art is poor in heat exchange efficiency.

In order to achieve the above object, the present invention provides a wall-hanging stove comprising:

The wall-mounted boiler main body is provided with a flue for smoke to pass through;

The heat exchanger is arranged in the flue and exchanges heat with the flue gas passing through the flue; and

Airflow adjusting device, airflow adjusting device installs the hanging stove main part on the flue, the convection current is carried out the flue gas air current of heat exchanger disturbs to in the vertical cross section that corresponds with flue gas air current is perpendicular, reduce the difference in flow between the different flue gas air currents on the different regions of vertical cross section.

Further, the airflow adjusting device comprises a hole plate arranged on the flue, a plurality of vent holes for the flue gas to pass through are formed in the hole plate, and the hole plate passes through the vent holes to reduce the flow speed difference between different flue gas flows at different positions of the vertical section.

further, the sum of the ventilation areas of the ventilation holes distributed in the high smoke flow velocity area is smaller than the sum of the ventilation areas of the ventilation holes distributed in the low smoke flow velocity area.

Further, including setting up on the orifice plate spare the base plate of air vent, wherein, the air vent is less than at the intensive degree of high flue gas air current velocity of flow regional distribution the air vent is at the intensive degree of low flue gas air current velocity of flow regional distribution.

further, the variation value of the density of the vent holes corresponds to the difference value of the flow speed between different flue gas flows at different positions of the vertical section.

further, including setting up on the orifice plate spare the base plate of air vent, wherein, the air vent is less than in the aperture size in high flue gas air current velocity of flow region the air vent is in the aperture size in low flue gas air current velocity of flow region.

Further, the extending direction of the pore plate piece in the flue is perpendicular to the flowing direction of the flue gas flow.

Further, the orifice plate member is disposed within the flue to block the flue.

Furthermore, the airflow adjusting device comprises a grid element arranged on the flue, a plurality of grid holes for the flue gas to pass through are formed in the grid element, and the grid element passes through the grid holes to reduce the flow speed difference between different flue gas flows at different positions of the vertical section.

Further, the density of the grid holes in the high flue gas flow velocity area is less than the density of the grid holes in the low flue gas flow velocity area.

Further, the hanging stove still includes the fan that sets up on the flue, the fan is in order to increase the power that the flue gas air current circulates in the flue.

The fan is in the smoke outlet position setting of hanging stove, airflow adjusting device is in the fan with set up between the heat exchanger.

The technical scheme of the invention has the following advantages:

1. According to the wall-mounted furnace provided by the invention, the flue is provided with the airflow adjusting device, the airflow adjusting device disturbs the flue gas flow flowing through the heat exchanger, and the flow speed difference between different flue gas flows in different areas of the vertical section is reduced in the vertical section vertically corresponding to the flue gas flow, so that the flow speed of the flue gas flow flowing through the heat exchanger is more uniform among different positions of the heat exchanger, the situation that the flow speed of partial flue gas is too high and the flow speed of the flue gas in other areas is low when the heat exchanger works in the wall-mounted furnace is reduced or avoided, and the heat exchange efficiency of the heat exchanger in the wall-mounted furnace is further improved.

2. The air flow adjusting device is a hole plate, the hole plate comprises a substrate, wherein the density of the air holes in the high smoke air flow velocity area is less than that of the air holes in the low smoke air flow velocity area, so that the high smoke air flow can form larger obstruction and disturbance to the high smoke air flow when passing through the small area of the air hole density, even the smoke air flow can flow to the low smoke air flow area, and the low smoke air flow can form smaller obstruction when passing through the large area of the air hole density, thereby reducing the flow speed difference between the high smoke air flow and the low smoke air flow, effectively fully contacting the whole heat exchanger area with high-temperature smoke, and effectively improving the heat exchange efficiency.

3. according to the wall-mounted furnace provided by the invention, the change value of the density degree of the vent holes corresponds to the flow velocity difference between different flue gas flows at different positions of the vertical section, for example, the density degree of the higher flue gas flow passing through the vent holes is improved to a certain extent than the density degree of the higher flue gas flow passing through the vent holes, and the improved degree corresponds to the flow difference, so that the flow velocity difference between the high flue gas flow and the low flue gas flow can be further reduced, the whole heat exchanger area is effectively and fully contacted with high-temperature flue gas, and the heat exchange efficiency is effectively improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts. In the drawings:

fig. 1 is a schematic front view of a wall-hanging stove according to an embodiment of the present invention.

Fig. 2 is a schematic front view of a wall-hanging stove according to another embodiment of the present invention, wherein an air inlet of a fan is disposed toward a heat exchanger.

Fig. 3 is a schematic front view of a perforated plate member as an airflow adjusting device in the wall-hanging stove shown in fig. 1, wherein the vent holes are distributed densely on the perforated plate member.

Fig. 4 is a schematic front view of a perforated plate member serving as an airflow adjusting device in a wall-hanging stove according to a modified embodiment of the present invention, wherein the vent holes are distributed densely on the perforated plate member.

Fig. 5 is a schematic front view of a grid member serving as an airflow adjusting device in a wall-hanging stove according to a modified embodiment of the present invention, wherein grid holes are densely distributed on the grid member.

Wherein the reference numerals in the above figures are:

10. A wall-mounted boiler main body; 11. a flue; 20. a heat exchanger; 30. an orifice plate member; 31. a vent hole; 33. a substrate; 40. a grid member; 41. a grid hole; 50. a burner; 60. a fan.

Detailed Description

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

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being 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 invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

as shown in fig. 1, the wall-hanging stove according to the present embodiment includes a burner 50; a wall-hanging stove body 10 provided with a flue 11 through which flue gas generated by the burner 50 passes; the heat exchanger 20 is arranged in the flue 11 and exchanges heat with the flue gas passing through the flue 11; and the pore plate member 30 is used as an airflow adjusting device, the pore plate member 30 is installed on the flue 11 of the wall-hanging furnace main body 10, the pore plate member 30 is provided with a plurality of air vents 31 through which the flue gas airflow can pass, and the flue gas airflow flowing through the heat exchanger 20 is disturbed, so that the airflow adjusting device reduces the flow speed difference between different flue gas airflows on different areas of the vertical section in the vertical section vertically corresponding to the flue gas airflow. And then combustor 50 in this embodiment is in the course of the work, to the not good problem of heat exchanger 20 heat exchange efficiency in the hanging stove, this embodiment is through setting up air current adjusting device on flue 11, air current adjusting device disturbs the flue gas air current of flowing through heat exchanger 20, and in the perpendicular cross-section that flue gas air current corresponds perpendicularly, reduce the difference of flow between the different flue gas air currents on the different regions of perpendicular cross-section, make the flue gas air current of flowing through heat exchanger 20 more even between the different positions of heat exchanger 20, the condition that partial flue gas velocity of flow is too big and all the other regional flue gas velocities of flow appear when reducing or having avoided heat exchanger 20 during the hanging stove work, and then the heat exchange efficiency of heat exchanger 20 in the hanging stove has been.

it should be noted that, in this embodiment, the vertical section corresponding to the flue gas flow vertically refers to a plane perpendicular to the flue gas flow direction in the flue gas flow direction. On this vertical plane, the temperature difference of the flue gas is burnt by combustor 50, install on hanging stove main part 10 and increase fan 60 of circulation power to the flue gas air current, all can cause the different regions on this vertical plane, the velocity of flue gas air current through corresponding region is inconsistent, and then lead to the region that air current velocity is high, high temperature flue gas takes the heat just directly to flow through, do not fully contact heat exchanger 20, the region that air current velocity is little, this part amount of wind is less, the heat that provides also can be low, cause from this to lead to the whole inefficiency of heat exchanger 20, and the technical scheme in this application is through adjusting the velocity difference of flue gas flow on this vertical plane, and then promote hanging stove heat exchanger 20 whole efficiency.

As shown in fig. 3, the airflow adjusting device in the present embodiment is an aperture plate 30, and the aperture plate 30 includes a base plate 33 thereon, wherein, in a high flue gas flow velocity region, for example, a region with a higher temperature near the air outlet of the fan 60, the sum of the ventilation areas of the ventilation holes 31 distributed in the high flue gas flow velocity region is smaller than the sum of the ventilation areas of the ventilation holes 31 distributed in the low flue gas flow velocity region. Make high flue gas air current when the area that the area was ventilated through air vent 31 sum is little, can form great hindrance and disturbance to high flue gas air current, can make flue gas air current flow direction low flue gas air current regional even, and when the area that the area was ventilated through air vent 31 sum is big, can form less hindrance to low flue gas air current, and then reduce the flow difference between high flue gas air current and the low flue gas air current, let 20 regional abundant contacts with the high temperature flue gas of whole heat exchanger effectively, effectively improve heat exchange efficiency.

The intensive degree of air vent 31 in the regional distribution of high flue gas air current velocity of flow is less than the intensive degree of air vent 31 in the regional distribution of low smoke air current velocity of flow, make high flue gas air current when the little region of air vent 31 intensive degree, can form great hindrance and disturbance to high flue gas air current, can make flue gas air current flow direction low smoke air current regional even, and when the big region of air vent 31 intensive degree, can form less hindrance to low smoke air current, and then reduce the difference of flow speed between high flue gas air current and the low smoke air current, let 20 regional abundant contacts with high temperature flue gas of whole heat exchanger effectively, effectively improve heat exchange efficiency. Here, the comparison of the density of the vent holes 31 is exemplified when the vent holes 31 have the same size.

Preferably, the variation value of the density of the vent holes 31 in this embodiment corresponds to the difference between the flow rates of different flue gas flows at different positions of the vertical section, for example, the density of the higher flue gas flow passing through the vent holes 31 is improved to a certain extent compared with the density of the higher flue gas flow passing through the vent holes 31, and the improved degree corresponds to the flow difference, so that the flow difference between the high flue gas flow and the low flue gas flow can be further reduced, the whole area of the heat exchanger 20 is effectively and fully contacted with the high-temperature flue gas, and the heat exchange efficiency is effectively improved.

As shown in fig. 4, in a modified embodiment of the present embodiment, the aperture plate 30 includes a substrate 33, wherein the aperture size of the vent hole 31 in the high flue gas flow velocity region is smaller than the aperture size of the vent hole 31 in the low flue gas flow velocity region, and the same effect as the effect generated by the different density of the vent holes 31 is obtained, so that when the high flue gas flow passes through the small region of the vent hole 31, the high flue gas flow can form a larger obstruction and disturbance, and even the flue gas flow can flow to the low flue gas flow region, and when the high flue gas flow passes through the large region of the vent hole 31, the low flue gas flow can form a smaller obstruction, thereby reducing the flow velocity difference between the high flue gas flow and the low flue gas flow, effectively making the whole heat exchanger 20 region fully contact with the high temperature flue gas, and effectively improving the heat.

Preferably, the extension direction of the orifice plate 30 in the flue 11 is perpendicular to the flow direction of the flue gas, so that the regulation effect of the orifice plate 30 as the gas flow regulation device is better. Preferably, the perforated plate 30 is arranged in the flue 11 to close the flue 11, so that the adjusting effect of the perforated plate 30 as an air flow adjusting device can be further ensured.

In another variant embodiment of this embodiment, shown in figure 5, the flow regulating means comprise a grid 40 mounted on the flue 11, the grid 40 having a plurality of grid holes 41 formed therein for the passage of the flue gas flow, the grid 40 passing through the grid holes 41 to reduce the flow velocity difference between the different flue gas flows at different positions in the vertical section. The whole area of the heat exchanger 20 can be effectively and fully contacted with the high-temperature flue gas, and the heat exchange efficiency is effectively improved.

It is preferred that the density of the grid holes 41 in the high flue gas flow velocity region is less than the density of the grid holes 41 in the low flue gas flow velocity region.

In another variation of this embodiment, not shown, the airflow adjusting device is made of other porous media, and the material density and the material thickness of the porous media are not uniform, and correspond to the airflow velocity of the flue gas, so that the airflow velocity is also uniform, the entire area of the heat exchanger 20 can be effectively contacted with the high-temperature flue gas, and the heat exchange efficiency is effectively improved.

Preferably, the wall-hanging stove in this embodiment further includes a fan 60 disposed on the flue 11, the fan 60 increases the power of the flue gas flowing in the flue 11, so as to ensure the heat exchange efficiency of the wall-hanging stove,

In another embodiment of the arrangement of the fan 60, as shown in fig. 2, the air inlet of the fan 60 is arranged towards the heat exchanger 20.

Preferably, the fan 60 is arranged at the position of the smoke outlet of the wall-mounted furnace, and the airflow adjusting device is arranged between the fan 60 and the heat exchanger 20, so that the adjusting reliability of the airflow adjusting device is better.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.