CN212619374U - Combustion chamber shell and gas water heater - Google Patents
Combustion chamber shell and gas water heater Download PDFInfo
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- CN212619374U CN212619374U CN202021294612.3U CN202021294612U CN212619374U CN 212619374 U CN212619374 U CN 212619374U CN 202021294612 U CN202021294612 U CN 202021294612U CN 212619374 U CN212619374 U CN 212619374U
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- combustion chamber
- air
- airflow
- plate
- air inlet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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- Housings, Intake/Discharge, And Installation Of Fluid Heaters (AREA)
Abstract
The utility model discloses a combustion chamber shell and gas heater, wherein, the combustion chamber shell is used for gas heater, the combustion chamber shell includes: the body is formed with combustion chamber and air current passageway, air current passageway locates in the lateral wall of body, air current passageway has the intercommunication the outside air inlet of body and the intercommunication the gas outlet in combustion chamber, the air inlet with the gas outlet dislocation set. The utility model discloses an adopting the airflow channel who sets up in the lateral wall of shell, when gas heater operation, can making the combustion chamber form negative pressure state for the outside air conditioning stream of body can get into the combustion chamber along airflow channel in, and at the air current flow in-process, the air current can carry out the heat exchange with the body, realizes cooling down to the body.
Description
Technical Field
The utility model relates to the field of household appliances, in particular to combustion chamber shell and gas heater.
Background
The gas water heater is a gas appliance which takes gas as fuel and transfers heat to cold water flowing through a heat exchanger in a combustion heating mode to achieve the purpose of preparing hot water. The shell of the combustion chamber is used as an important part for forming the combustion chamber, and in the operation process of the gas water heater, because the temperature of gas combustion flame is higher, the high temperature of the flame can damage the wall surface of the combustion chamber, so that the wall surface of the combustion chamber is burnt through in the long-time operation process, and the machine cannot be normally used.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing a combustion chamber shell and gas heater aims at improving the problem of current gas heater's combustion chamber wall high temperature damage.
In order to achieve the above object, the utility model provides a combustion chamber shell for gas water heater, the combustion chamber shell includes:
the body is formed with combustion chamber and air current passageway, air current passageway locates in the lateral wall of body, air current passageway has the intercommunication the outside air inlet of body and the intercommunication the gas outlet in combustion chamber, the air inlet with the gas outlet dislocation set.
Optionally, one end of the body has an opening, and an end opposite to the opening is a mounting end, and one of the air inlet and the air outlet is disposed near the opening, and the other is disposed near the mounting end.
Optionally, the airflow channel extends from the mounting end towards the opening.
Optionally, the airflow channel is a hollow interlayer disposed inside the side wall of the body.
Optionally, a flow guide part is arranged on the inner wall of the body, and the flow guide part is arranged close to the air outlet;
the flow guide part is provided with a flow guide surface for guiding airflow to the inside of the combustion cavity.
Optionally, the number of the airflow channels is multiple, and the multiple airflow channels are arranged at intervals.
Optionally, the body comprises:
an inner shell plate, the combustion chamber is formed inside;
and the outer shell plate is arranged outside the inner shell plate, and the airflow channel is formed between the outer wall of the inner shell plate and the inner wall of the outer shell plate.
Optionally, the air inlet is a through hole formed in the outer shell plate, and/or the air inlet is a gap formed between the inner shell plate and the outer shell plate.
Optionally, the air outlet is a through hole formed in the inner shell plate, and/or the air outlet is a gap formed between the outer shell plate and the inner shell plate.
Optionally, the number of the air inlets is multiple, and the multiple air inlets are arranged at intervals;
and/or the number of the air outlets is multiple, and the air outlets are arranged at intervals.
Optionally, the outer wall of the inner shell plate and/or the inner wall of the outer shell plate are provided with limiting protrusions, and the limiting protrusions protrude into the airflow channel.
The utility model provides a gas water heater on the basis of above-mentioned combustion chamber shell, including the aforesaid combustion chamber shell, and
a heat exchanger in communication with the combustion chamber of the combustion chamber housing;
and the fan is arranged on one side of the heat exchanger, which deviates from the combustion chamber, and is used for pumping the airflow in the combustion chamber of the combustion chamber shell to an external exhaust pipe through the heat exchanger.
The utility model discloses technical scheme is through adopting the airflow channel who sets up in the lateral wall of shell, when the operation of gas heater, can make the combustion chamber form negative pressure state for the outside air conditioning stream of body can get into the combustion chamber along airflow channel in, and at the air current flow in-process, the air current can carry out the heat exchange with the body, realizes cooling to the body.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
Fig. 1 is a schematic structural view of an embodiment of a combustion chamber housing of the present invention;
FIG. 2 is a schematic view of an embodiment of the internal structure of the combustion chamber housing of the present invention;
FIG. 3 is a schematic structural view of an embodiment of the fitting portion between the inner shell and the outer shell of the present invention;
fig. 4 is a schematic view of an embodiment of the internal structure of the gas water heater of the present invention.
The reference numbers illustrate:
| reference numerals | Name (R) | Reference numerals | Name (R) |
| 10 | |
11 | |
| 20 | |
21 | Opening of the |
| 22 | |
23 | |
| 24 | |
25 | |
| 26 | |
27 | |
| 28 | |
29 | |
| 40 | Burner with a burner head |
The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in fig. 1 and 2), and if the specific posture is changed, the directional indications are changed accordingly.
In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a combustion chamber housing for a gas water heater, the combustion chamber housing comprising: the combustion chamber 20 and the airflow channel 23 are formed on the body 20, the airflow channel 23 is arranged in the side wall of the body 20, the airflow channel 23 is provided with an air inlet 24 communicated with the outside of the body 20 and an air outlet 25 communicated with the combustion chamber 22, and the air inlet 24 and the air outlet 25 are arranged in a staggered mode.
The combustion chamber 22 is a cavity formed in the body 20 and may be used to mount a burner 40. The side wall of the body 20 has a certain thickness to facilitate the formation of the air flow channel 23. The combustion chamber shell is used for a gas water heater, the fan 11 is arranged in the gas water heater, and when the fan 11 runs, negative pressure can be formed in the combustion chamber 22, so that airflow outside the body 20 can flow to the combustion chamber 22.
The gas flow channel 23 is a channel provided in the side wall of the body 20 for feeding gas into the combustion chamber 22. An air inlet 24 of the air flow channel 23 is connected with the outside of the body 20, and an air outlet 25 of the air flow channel 23 is used for communicating with the combustion chamber 22. The air inlet 24 and the air outlet 25 are arranged in a staggered manner, that is, projections of the air inlet 24 and the air outlet 25 in a plane perpendicular to the axial direction of the air inlet and the air outlet are staggered, the air flow channel 23 does not directly penetrate through the side wall of the body 20, and after air flows enter the air flow channel 23 from the air inlet 24, the complete path of the air flow is not parallel to the axial direction of the air inlet 24 or the air outlet 25.
Because the airflow channel 23 is disposed on the sidewall of the body 20, the air inlet 24 and the air outlet 25 are disposed in a staggered manner, so that the path of the airflow channel 23 is extended, and after cold airflow enters the airflow channel 23 from the air inlet 24, the cold airflow exchanges heat with the body 20, thereby reducing the temperature of the body 20 and further reducing the damage to the body 20 caused by high temperature.
When the air current along during the air current channel 23 flows, because the air current with body 20 carries out the heat exchange, can heat the air current for the air current gets into during combustion chamber 22, can be used for to mend oxygen in the combustion chamber 22, and then can make the gas fully burn, improve gas utilization efficiency, reduce pollutant discharge.
After the air flow exchanges heat with the body 20 in the air flow channel 23, the heated hot air flow enters the combustion chamber 22, so that the heat on the body can be secondarily utilized, the heat loss of the combustion chamber shell is further reduced, the heat utilization efficiency is improved, and the energy utilization rate of the gas water heater is further improved.
Taking the structure of the combustion chamber housing as shown in fig. 1 as an example, the airflow channel 23 may extend vertically along the height direction of the side wall of the main body 20, or may extend horizontally along the main body 20 to extend the length of the airflow channel 23. A plurality of the airflow channels 23 may be disposed in the sidewall of the body 20, and the airflow channels 23 may be disposed at intervals, so that the airflow channels 23 introduce cold airflow into the sidewall of the body 20 from different positions, so as to improve the cooling efficiency of the body 20.
In order to improve the heat exchange efficiency, a plurality of airflow channels 23 may be disposed on the side wall of the body 20, so that the plurality of airflow channels 23 cool the body 20 in multiple directions. The position and the spacing distance of the corresponding airflow channel 23 can be selected according to the temperatures of different areas in the combustion chamber 22, so as to improve the cooling efficiency.
Referring to fig. 1 and 2, in an embodiment of the present invention, an end of the body 20 has an opening 21, an end opposite to the opening 21 is a mounting end, one of the air inlet 24 and the air outlet 25 is disposed near the opening 21, and the other is disposed near the mounting end.
The openings 21 may be used in conjunction with other heat exchange devices to enable the flow of hot gases within the combustion chamber 22 to exchange heat with the heat exchange devices. The mounting end can be used for mounting components such as a gas pipeline interface and the like.
Since the body 20 has the opening 21, heat is transferred from the opening 21 to the heat exchange device, one of the air inlet 24 and the air outlet 25 is disposed near the opening 21, and the other is disposed near the mounting end, so that the length of the air flow channel 23 can be extended, and the air flow channel 23 can act on the body 20 more.
The airflow channel 23 may be a long straight channel pointing from the mounting end to the opening 21, or may be a zigzag channel so as to extend the length of the airflow channel 23, so that the cold airflow can sufficiently exchange heat with the body 20.
In this embodiment, the airflow channel 23 extends from the mounting end to the opening 21, so that the airflow channel 23 can cover the sidewall of the body 20 as completely as possible, so that the body 20 can perform heat exchange with cold airflow sufficiently. Taking the combustion chamber housing structure shown in fig. 2 as an example, the airflow enters the airflow channel 23 from the air inlet 24 and gradually flows toward the opening 21, so that the airflow can completely act on the body 20, the airflow path is extended, the heat exchange time of the airflow is extended, and the utilization efficiency of the cold airflow is improved.
In order to increase the heat exchange area between the cold air and the body 20, in an embodiment of the present invention, the air flow channel 23 is a hollow interlayer disposed inside the sidewall of the body 20. The air flow channel forms a hollow cavity inside the side wall of the body 20. The air inlet 24 and the air outlet 25 are respectively communicated with the interlayer, so that after cold air enters the air flow channel 23, the contact area of the cold air and the body 20 is increased, and the heat exchange efficiency is improved. By increasing the distance between the air inlet 24 and the air outlet 25, the time for the cold air flow to flow in the air flow channel 23 can be prolonged, and the heat exchange efficiency can be further improved.
When a hollow sandwich design is adopted, one end of a single air flow channel 23 can be provided with a plurality of air inlets 24, and the other end is provided with a plurality of air outlets 25, so that the air inlet and outlet efficiency is improved. When the inner wall of the body 20 is provided with the plurality of interlayer-shaped airflow channels 23, the plurality of interlayer-shaped airflow channels 23 can be communicated with each other, so that the side wall of the body 20 is hollow, the air inlet 24 of the airflow channel 23 can be arranged close to the opening 21, and the air outlet 25 can be arranged close to the mounting end, or can be selected according to specific conditions. The air inlet 24 and the air outlet 25 may be shared by the plurality of air flow passages 23, or the air inlet 24 and the air outlet 25 may be provided separately. Because the temperature of different parts in the combustion chamber 22 may have differences when the gas water heater is in operation, the positions of the air inlet 24 and the air outlet 25 can be determined according to actual needs, so as to realize the targeted cooling of the body 20.
Referring to fig. 2 and 3, in an embodiment of the present invention, a flow guiding portion 28 is disposed on an inner wall of the body 20, and the flow guiding portion 28 is disposed near the air outlet 25; the guide portion 28 is formed with a guide surface for guiding the airflow toward the inside of the combustion chamber 22. The flow guide surface can guide the airflow to the middle of the combustion chamber 22, so that the hot airflow can fully interact with the fuel gas, and the combustion efficiency of the fuel gas is improved.
The flow guiding portion 28 may be a protruding structure disposed at the air outlet 25, and an inclined surface or an arc surface is formed on the surface of the flow guiding portion 28 as the flow guiding surface, so that the air flow can flow along the flow guiding surface toward the middle of the combustion chamber 22. When the air outlets are distributed relatively intensively, the flow guide part 28 may also be a strip-shaped structure arranged close to the air outlets, so as to facilitate the manufacturing and processing of the body 20. The flow guide 28 may be integrally formed with the body 20, or may be a guide structure separately mounted on the body 20.
The shape and angle of the flow guide surface can be selected according to specific conditions. The angle of the flow guide surface can be adjusted according to the shape and size of the combustion chamber 22 to better realize the effect of guiding the air flow.
Referring to fig. 2 and 3, in an embodiment of the present invention, an alternative structural form of the body 20 is disclosed, and the body 20 includes: an inner shell plate 27 inside which the combustion chamber 22 is formed; and an outer shell plate 26 disposed outside the inner shell plate 27, wherein the airflow channel 23 is formed between an outer wall of the inner shell plate 27 and an inner wall of the outer shell plate 26.
The inner skin 27 serves as an integral skin structure forming the combustion chamber 22, and the outer skin 26 is disposed on the outside of the inner skin 27 such that the inner skin 27 and the outer skin 26 form a double-layered structure. The gap between the inner skin 27 and the outer skin 26 forms the air flow channel 23.
By forming the airflow channel 23 with the gap between the inner shell plate 27 and the outer shell plate 26, the heat exchange area between the cold airflow and the inner shell plate 27 can be increased, and the cooling speed can be increased. The outer shell plate 26 is used for shielding the outer part of the inner shell plate 27, so that the effect of preventing the heat of the combustion cavity 22 from leaking outside can be achieved, and the energy utilization rate of the gas water heater is further improved.
The position of the air inlet 24 can be determined according to the position of the inner shell plate 27 and the outer shell plate 26. in an embodiment of the present invention, the air inlet 24 is a through hole formed in the outer shell plate 26, the air inlet 24 can be close to one side of the opening 21 and the mounting end, and the number of the air inlets 24 can be multiple to realize multi-point air inlet.
In order to maintain a constant distance between the inner casing plate 27 and the outer casing plate 26, in this embodiment, optionally, the outer wall of the inner casing plate 27 and/or the inner wall of the outer casing plate 26 is provided with a limiting protrusion 29, and the limiting protrusion 29 protrudes into the airflow channel 23.
The position-limiting protrusion 29 is supported in the airflow passage 23 to maintain a fixed gap width between the outer wall of the inner shell 27 and the inner wall of the outer shell 26, thereby preventing the airflow passage 23 from being blocked due to the attachment of the inner shell 27 and the outer shell 26 to each other. The limiting protrusions 29 are protruding points arranged in the airflow channel 23 at intervals, and the limiting protrusions 29 are staggered with the air inlet 24 and the air outlet 25 so as to reduce shielding of the airflow channel 23.
In another embodiment of the present invention, the air inlet 24 is a gap formed between the inner shell plate 27 and the outer shell plate 26. The edge of the outer shell plate 26 may be an elongated shape, and the air inlet 24 is disposed along the edge of the outer shell in an elongated shape, so that the air flow uniformly enters the air flow channel 23 between the inner shell plate 27 and the outer shell plate 26, so as to uniformly absorb heat to the surface of the inner shell plate 27.
A strip-shaped gap may be formed between the edge of the outer shell plate 26 and the outer wall of the inner shell plate 27, and a through hole is formed in the outer shell plate 26, so that when the gas water heater operates, the fan 11 may generate negative pressure in the combustion chamber 22, so that the air flows toward the air outlet 25, and the air inlets 24 are engaged with each other, thereby increasing the amount of intake air.
The position of gas outlet 25 can be according to interior housing plate 27 with outer housing plate 26's position is confirmed the utility model discloses an embodiment, gas outlet 25 is for locating through-hole on the interior housing plate 27, gas outlet 25 can be the through-hole that a plurality of intervals set up to from the multiple spot air inlet, and then from a plurality of positions to the air is mended to combustion chamber 22.
In another embodiment of the present invention, the air outlet 25 is a gap formed between the outer shell plate 26 and the inner shell plate 27. The edge of the inner casing plate 27 may extend in a long strip shape, and the air outlet 25 extends along the edge of the inner casing plate 27 to form a long strip-shaped air outlet structure. When the air outlet is of a long strip-shaped structure, the flow guide part is a strip-shaped bulge parallel to the air outlet so as to guide the flow of the gas.
A plurality of through holes may be disposed on the inner casing 27 to serve as the air outlets 25, so as to exhaust air from multiple points. Under the action of the fan 11, an air flow can enter the combustion chamber 22 along the air outlet 25.
The outer shell 26 and the edge of the inner shell 27 may be offset from each other, so that the air inlet 24 is formed between the edge of one end of the outer shell 26 and the outer wall of the inner shell 27, and the air outlet 25 is formed between the inner wall of the end of the outer shell 26 away from the air inlet 24 and the edge of the inner shell 27 on the same side. Taking the distribution of the inner and outer skins 27, 26 as shown in fig. 3 as an example, the outer skin 26 is disposed outside the inner skin 27, and the upper end of the outer skin 26 is higher than the upper end of the inner skin 27, so that the air outlet 25 is formed between the upper edge of the inner skin 27 and the inner wall of the outer skin 26. The lower end of the outer skin 26 is higher than the lower end of the inner skin 27 such that the air inlet 24 is formed between the lower end edge of the outer skin 26 and the outer wall of the inner skin 27.
The utility model discloses a gas heater's embodiment on the basis of above-mentioned combustion chamber shell.
Referring to fig. 4, the gas water heater includes a combustion chamber housing as described in any of the above embodiments, and a heat exchanger 10 communicating with a combustion chamber 22 of the combustion chamber housing; and the fan 11 is arranged on one side of the heat exchanger 10, which is far away from the combustion chamber 22, and is used for pumping the airflow in the combustion chamber 22 of the combustion chamber shell to an external exhaust pipe through the heat exchanger 10.
Claims (12)
1. A combustion chamber housing for a gas water heater, said combustion chamber housing comprising:
the body is formed with combustion chamber and air current passageway, air current passageway locates in the lateral wall of body, air current passageway has the intercommunication the outside air inlet of body and the intercommunication the gas outlet in combustion chamber, the air inlet with the gas outlet dislocation set.
2. The combustor housing of claim 1, wherein an end of said body has an opening, an end opposite said opening being a mounting end, one of said air inlet and said air outlet being disposed proximate said opening and the other of said air inlet and said air outlet being disposed proximate said mounting end.
3. The combustor housing of claim 2, wherein said airflow passage extends from said mounting end to said opening.
4. The combustor casing of claim 1, wherein said gas flow passages are hollow interlayers disposed within the sidewalls of said body.
5. The combustor casing of claim 1, wherein a flow guide is provided on an inner wall of said body, said flow guide being disposed adjacent to said air outlet;
the flow guide part is provided with a flow guide surface for guiding airflow to the inside of the combustion cavity.
6. The combustor casing of any one of claims 1 to 5, wherein said airflow passage is plural in number, and a plurality of said airflow passages are provided at intervals.
7. A combustion chamber housing according to any one of claims 1 to 5, wherein said body comprises:
an inner shell plate, the combustion chamber is formed inside;
and the outer shell plate is arranged outside the inner shell plate, and the airflow channel is formed between the outer wall of the inner shell plate and the inner wall of the outer shell plate.
8. The combustor casing of claim 7, wherein said air intake ports are through holes provided in said outer casing plate and/or said air intake ports are slits formed between said inner casing plate and said outer casing plate.
9. The combustor casing of claim 7, wherein said air outlet is a through hole provided in said inner casing plate and/or said air outlet is a gap formed between said outer casing plate and said inner casing plate.
10. The combustor casing of claim 7, wherein said intake ports are plural in number, and a plurality of said intake ports are provided at intervals;
and/or the number of the air outlets is multiple, and the air outlets are arranged at intervals.
11. The combustor casing of claim 7, wherein an outer wall of said inner casing plate and/or an inner wall of said outer casing plate is provided with a limit projection projecting into said airflow passage.
12. A gas water heater comprising a combustion chamber housing according to any one of claims 1 to 11, and
a heat exchanger in communication with the combustion chamber of the combustion chamber housing;
and the fan is arranged on one side of the heat exchanger, which deviates from the combustion chamber, and is used for pumping the airflow in the combustion chamber of the combustion chamber shell to an external exhaust pipe through the heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021294612.3U CN212619374U (en) | 2020-07-03 | 2020-07-03 | Combustion chamber shell and gas water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021294612.3U CN212619374U (en) | 2020-07-03 | 2020-07-03 | Combustion chamber shell and gas water heater |
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| Publication Number | Publication Date |
|---|---|
| CN212619374U true CN212619374U (en) | 2021-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021294612.3U Active CN212619374U (en) | 2020-07-03 | 2020-07-03 | Combustion chamber shell and gas water heater |
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| CN (1) | CN212619374U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185107A1 (en) * | 2022-03-30 | 2023-10-05 | 广东美的白色家电技术创新中心有限公司 | Combustion device and gas water heater |
-
2020
- 2020-07-03 CN CN202021294612.3U patent/CN212619374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023185107A1 (en) * | 2022-03-30 | 2023-10-05 | 广东美的白色家电技术创新中心有限公司 | Combustion device and gas water heater |
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