CN212511829U - Combustion chamber and gas appliance - Google Patents
Combustion chamber and gas appliance Download PDFInfo
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- CN212511829U CN212511829U CN201921868350.4U CN201921868350U CN212511829U CN 212511829 U CN212511829 U CN 212511829U CN 201921868350 U CN201921868350 U CN 201921868350U CN 212511829 U CN212511829 U CN 212511829U
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- side plate
- bounding wall
- plate
- combustion chamber
- combustor
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Abstract
The utility model discloses a combustion chamber and gas equipment, the combustion chamber includes: the first bounding wall that is located the outside and the second bounding wall that is located the inboard, the second bounding wall constructs out the burning chamber, first bounding wall with the second bounding wall interval set up construct out with at least one wind channel of burning chamber intercommunication, the fresh air inlet in wind channel is formed at on the first bounding wall, the exhaust vent in wind channel is formed at on the second bounding wall, in the direction of height, the fresh air inlet set up in the top of exhaust vent. According to the utility model discloses the combustion chamber constructs the wind channel that goes out and burn the chamber intercommunication through first bounding wall and second bounding wall, has both realized the cooling to first bounding wall, avoids the heat to transmit to the outside, can improve the thermal efficiency to combustor supply secondary air again, and first bounding wall and second bounding wall adopt steel preparation shaping, have simplified production technology, have reduced manufacturing cost.
Description
Technical Field
The utility model relates to a water heater technical field, more specifically relates to a combustion chamber and gas equipment.
Background
In order to avoid the damage to the service life of other parts of the gas equipment caused by the outward transmission of high-temperature heat energy, the conventional combustion chamber generally comprises two types, namely a combustion chamber surrounded by oxygen-free copper, and a water pipe coiled on the outer wall surface of the oxygen-free copper for cooling so as to prolong the service life of the parts. The method has the disadvantages of high process requirement of coil pipe welding, high manufacturing difficulty and high manufacturing cost because a large amount of oxygen-free copper materials are used. Meanwhile, the wall surface of the combustion chamber with the coil pipe is easy to produce condensed water at low temperature in winter, and the service life of the heat exchanger can be influenced. The other is that the inner wall of the combustion chamber is provided with a heat insulation material, the cost of the heat insulation material is high, and the heat insulation effect is poor under the condition that the thickness and the sealing performance of the heat insulation material are insufficient.
Based on the above, it is necessary to optimize the structure of the combustion chamber, and design a structure with low cost, simple process and good heat insulation effect.
SUMMERY OF THE UTILITY MODEL
The utility model discloses aim at solving one of above-mentioned technical problem to a certain extent at least.
Therefore, the utility model provides a combustion chamber, this combustion chamber's manufacturing process is simple, low in manufacturing cost.
The utility model discloses still provide a gas equipment, this gas equipment's simple structure, low in production cost, long service life and thermal efficiency are high.
According to utility model's combustion chamber includes: the first bounding wall that is located the outside and the second bounding wall that is located the inboard, the second bounding wall constructs out the burning chamber, first bounding wall with the second bounding wall interval set up construct out with at least one wind channel of burning chamber intercommunication, the fresh air inlet in wind channel is formed at on the first bounding wall, the exhaust vent in wind channel is formed at on the second bounding wall, in the direction of height, the fresh air inlet set up in the top of exhaust vent.
According to the utility model discloses combustion chamber constructs the wind channel that goes out and burn the chamber intercommunication through first bounding wall and second bounding wall, has both realized the cooling to first bounding wall, avoids the heat to transmit to the outside, can improve the thermal efficiency to combustor supply secondary air again.
In addition, according to the utility model discloses combustion chamber, can also have following additional technical characterstic:
in some embodiments of the invention, at least one of the first and second enclosures is a steel plate.
In an optional embodiment, the air inlet holes and the air outlet holes are arranged in a staggered manner in the height direction.
In an alternative example, the air duct has at least two layers.
In a further optional example, the air inlet holes of the at least two layers of air ducts are both located above the air outlet holes.
In an alternative example, the first enclosing plate comprises a first back side plate, a first left side plate, a first right side plate, a first left side plate and a first front side plate which are mutually connected in the circumferential direction, wherein the first back side plate, the first left side plate and the first right side plate are integrally formed.
In an alternative embodiment, the second enclosing plate comprises a second rear side plate, a second left side plate, a second right side plate and a first front side plate which are circumferentially connected with each other, and the second rear side plate, the second left side plate and the second right side plate are integrally formed.
In an alternative example, the upper end of the second front side plate forms a bent plate, and the bent plate is at least partially attached to the inner side wall of the first front side plate, so as to close the upper side of the air duct.
In a further alternative example, the upper side of the bending plate and the first front side plate form an insulating air chamber, and the insulating air chamber is not communicated with the combustion chamber.
In a further alternative, a portion of the air inlet openings are disposed adjacent the bent plate.
In an optional embodiment, the air inlet hole is long-strip-shaped.
In an alternative example, the hole wall of the air outlet of the second enclosing plate forms a wind deflector extending towards the inner wall of the first enclosing plate.
According to the utility model discloses gas equipment includes the combustion chamber of above-mentioned embodiment, because according to the utility model discloses the combustion chamber effectively avoids the heat to transmit to the outside, has prolonged the life of spare part, and has improved combustion efficiency, consequently, according to the utility model discloses gas equipment long service life and thermal efficiency are high.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is an exploded view of a combustion chamber according to some embodiments of the present invention;
fig. 2 is a cross-sectional view of a combustion chamber according to some embodiments of the present invention;
fig. 3 is a cross-sectional view of a combustion chamber according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a combustion chamber according to another embodiment of the present invention;
fig. 5 is a perspective view of a combustion chamber according to some embodiments of the present invention;
fig. 6 is a schematic structural view of a gas appliance according to some embodiments of the present invention.
Reference numerals:
a gas-fired facility 1000;
a combustion chamber 100;
a first shroud 10; an air inlet hole 11; a first rear side panel 12; a first left side plate 13; a first right side plate 14; a first front side plate 15;
a second shroud 20; a combustion chamber 21; an air outlet 22; a second rear side plate 23; a second left side panel 24; a second front side plate 25; a wind deflector 26; a bending plate 27;
an air duct 30;
a pipe groove 40;
a heat insulating air chamber 50;
a heat exchanger 200;
a burner 300;
a fan 400.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1-6, a combustion chamber 100 according to an embodiment of the present invention is described, the combustion chamber 100 is connected to a heat exchanger 200 and a burner 300 respectively, wherein a portion of the heat exchanger 200 and the burner 300 can be embedded in the combustion chamber 100, or both can be located outside the combustion chamber 100, or one can be located inside the combustion chamber 100 and the other can be located outside the combustion chamber 100.
Specifically, the combustion chamber 100 includes a first shroud 10 on the outside and a second shroud 20 on the inside. The second enclosure 20 defines a combustion chamber 21, i.e. the combustion flame of the burner 300 and the generated high-temperature flue gas are enclosed in the combustion chamber 21.
The outer side of the first enclosing plate 10 is provided with a second enclosing plate 20, and the second enclosing plate 20 can be at least partially arranged around the outer side of the first enclosing plate 10. For example, the second enclosure 20 is enclosed on at least one of the left side, the right side, the front side and the rear side of the first enclosure 10, preferably, the second enclosure 20 is enclosed on the left side, the right side and the front side and the rear side of the first enclosure 10, and more preferably, the second enclosure 20 and the first enclosure 10 have substantially the same extension height in the vertical direction (e.g., the vertical direction in the drawing), so that the first enclosure 10 blocking heat from being transferred to the outside can be provided on the outer side of the second enclosure 20, thereby reducing heat from being sent out from the combustion chamber 100 to the outside and avoiding damage to the components of the gas appliance 1000 due to high temperature.
The first enclosing plate 10 and the second enclosing plate 20 are arranged at intervals to form an air duct 30 communicated with the combustion chamber 21, and cold air in the air duct 30 takes away at least a part of heat of the first enclosing plate 10. That is, the air in the air duct 30 is in a flowing state, and the external cold air can continuously enter the air duct 30, so that the heat of the first enclosing plate 10 is continuously taken away and flows into the combustion chamber 21, thereby realizing the secondary air supply to the burner 300.
The utility model discloses combustion chamber 100 carries mobile air to wind channel 30, has realized the cooling to first bounding wall 10 on the one hand, has reduced the heat and has spread outward, has avoided the harm of 1000 spare parts of gas equipment, and on the other hand has also improved the thermal efficiency.
As shown in fig. 2-4, the air inlet holes 11 of the air duct 30 are formed on the first enclosure 10, and the air outlet holes 22 of the air duct 30 are formed on the second enclosure 20. That is, the cool air enters the air duct 30 through the first enclosing plate 10, and after passing through the air duct 30, flows out from the air outlet 22 and enters the combustion chamber 21. Under this condition, the utility model discloses a combustion chamber 100 is applied to strong type gas equipment of taking out, and strong type gas equipment of taking out is equipped with combustor 300, combustion chamber 100, heat exchanger 200 and fan 400 from bottom to top in proper order, and under the suction of fan 400, the formation negative pressure in the combustion chamber 21 for in the outside air is inhaled wind channel 30, the realization is to the cooling effect of first bounding wall 10.
In order to ensure that enough secondary air can be obtained in the combustion process of the mixed gas of air and fuel gas, the air inlet holes 11 are arranged above the air outlet holes 22 in the height direction, so that cold air in the air duct 30 can be promoted to flow towards the burner 300, sufficient secondary air is provided for the combustion of the fuel gas in the burner 300, and the combustion efficiency is improved.
It is worth mentioning that, the utility model discloses at least one of first bounding wall 10 and second bounding wall 20 of combustion chamber 100 is the steel sheet, compares in current combustion chamber use oxygen-free copper or thermal insulation material, and the plasticity of steel sheet is strong, and like this, first bounding wall 10 and second bounding wall 20 are the steel sheet, and connection process between them is comparatively simple, for example, first bounding wall 10 and second bounding wall 20 adopt local welding to form integratively, and wind channel 30 structure can be bent through first bounding wall 10 or second bounding wall 20 and form, and the configuration is easy.
It should be noted that the air duct 30 formed by the first enclosure 10 and the second enclosure 20 may be one or more distributed along the circumferential direction and/or one or more distributed along the height direction of the combustion chamber 100. Each of the air ducts 30 may have separate air inlet openings 11 and air outlet openings 22, or a plurality of air ducts 30 may share one air inlet opening 11 and flow out through the respective air outlet openings 22. The plurality of air ducts 30 may or may not be in communication with each other.
In short, according to the utility model discloses according to combustion chamber 100 constructs out the wind channel 30 with burning chamber 21 intercommunication through first bounding wall 10 and second bounding wall 20, has both realized the cooling to first bounding wall 10, avoids the heat to transmit to the outside, can supply secondary air to combustor 300 again, has improved the thermal efficiency.
In an alternative embodiment, as shown in fig. 1 and 5, the air inlet holes 11 and the air outlet holes 22 of the air duct 30 are arranged in a staggered manner in the height direction. That is, air enters the air duct 30 from one direction of the first enclosure 10 and exits the air duct 30 from the other direction of the second enclosure 20. Therefore, air cannot directly pass through the air duct 30 from the same height, and air flow can flow in the height direction, so that cooling of areas with different heights of the first enclosing plate 10 is realized.
The number of the air inlet holes 11 of each air duct 30 may be one or more, and preferably, the air inlet holes 11 are distributed in the circumferential direction of the first enclosing plate 10, so that the air inlet surface in the circumferential direction of the first enclosing plate 10 can be increased, and the first enclosing plate 10 is ensured to be fully cooled. In addition, each of the air ducts 30 includes a plurality of rows of the air inlet holes 11 or the air outlet holes 22 spaced apart in the height direction.
Advantageously, as shown in fig. 1 and 5, the air inlet openings 11 are elongated. Therefore, the distribution length of the air inlet holes 11 can be prolonged as much as possible, so that the circumferential air inlet surface of the first enclosing plate 10 is further increased, and the first enclosing plate 10 is ensured to be fully cooled.
In some embodiments of the present invention, the first enclosing plate 10 and the second enclosing plate 20 together form a pipe groove 40 extending in the left-right direction. A portion of the water pipes of the heat exchanger 200 may pass through the pipe slot 40, that is, a portion of the water pipes are disposed in the combustion chamber 21 and directly heated in the combustion chamber 21, thereby improving the heat exchange efficiency between the flue gas and the water pipes.
In an alternative embodiment, as shown in fig. 1 and 5, the first shroud 10 comprises: the first rear side plate 12, a first left side plate 13 connected to the left edge of the first rear side plate 12, a first right side plate 14 connected to the right edge of the first rear side plate 12, and a first front side plate 15 connected to the front edges of the first left side plate 13 and the first right side plate 14, respectively, wherein the first rear side plate 12, the first left side plate 13, and the first right side plate 14 are integrally formed; correspondingly, the second shroud 20 comprises: the second rear side plate 23, a second left side plate 24 connected to the left edge of the second rear side plate 23, a second right side plate connected to the right edge of the second rear side plate 23, and a second front side plate 25 connected to the front edges of the second left side plate 24 and the second right side plate, respectively, wherein the second rear side plate 23, the second left side plate 24, and the second right side plate are integrally formed.
That is, the first rear side plate 12, the first left side plate 13 and the first right side plate 14 are integrally formed into a U-shaped structure, the first front side plate 15 is used to close the U-shaped opening, the second rear side plate 23, the second left side plate 24 and the second right side plate are integrally formed into a U-shaped structure, and the second front side plate 25 is used to close the U-shaped opening. The whole structure of the combustion chamber is simple in shape and easy to produce and manufacture.
In an alternative example, as shown in fig. 1 and 2, a bent plate 27 is formed at the upper end of the second front side plate 25, and the bent plate 27 at least partially adheres to the inner side wall of the first front side plate 15, thereby closing the upper side of the air duct 30. That is, the bent plate 27 restricts the upward flow of air so that the air can flow downward into the combustion chamber 21, and supplies secondary air to the burner 300.
In an alternative example, as shown in fig. 5, the upper side of the bent plate 27 and the first front side plate 15 form an insulating air chamber 50, and the insulating air chamber 50 is not communicated with the combustion chamber 21. It can be understood that, because the bending plate 27 is partially attached to the inner wall of the first front side plate 15, the temperature of the first front side plate 15 is higher at the attachment of the bending plate 27 and the first front side plate 15, and the heat insulation air chamber 50 can block heat from transferring to the first front side plate 15 and can reduce the temperature at the attachment to some extent.
In a further alternative, a portion of the air inlet openings 11 are disposed adjacent to the bent plate 27. That is, the cold air enters the air duct 30 from the side close to the bending plate 27, which is beneficial to continuously taking away the temperature of the joint of the bending plate 27 and the first front side plate 15, and avoiding the over-high temperature of the joint.
In other embodiments of the present invention, the wall of the outlet opening 22 of the second panel 20 forms a wind deflector 26 extending towards the inner wall of the first panel 10. The wind deflector 26 may direct the wind as far as possible to the inner wall of the first shroud 10 so that the air flow may flow snugly over the inner wall of the first shroud 10, thereby allowing the air to sufficiently absorb the heat of the first shroud 10.
According to the utility model discloses gas equipment 1000 includes the combustion chamber 100 of above-mentioned embodiment, because according to the utility model discloses combustion chamber 100 simple structure easily produces the manufacturing, and effectively avoids the heat to transmit to the outside, has prolonged the life of spare part, and has improved combustion efficiency, consequently, according to the utility model discloses gas equipment 1000's simple structure, low in production cost, long service life and thermal efficiency are high.
In the description of the present invention, it is to be understood that the terms "bottom", "top", "inside", "outside", "upper", "lower", and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of description and simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that changes, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art without departing from the principles and spirit of the present invention.
Claims (13)
1. A combustor, comprising: the first bounding wall that is located the outside and the second bounding wall that is located the inboard, the second bounding wall constructs out the burning chamber, first bounding wall with the second bounding wall interval set up construct out with at least one wind channel of burning chamber intercommunication, the fresh air inlet in wind channel is formed at on the first bounding wall, the exhaust vent in wind channel is formed at on the second bounding wall, in the direction of height, the fresh air inlet set up in the top of exhaust vent.
2. The combustor of claim 1, wherein at least one of said first shroud and said second shroud is a steel plate.
3. The combustor of claim 1, wherein said air inlet openings and said air outlet openings are staggered in height.
4. The combustor of claim 3, wherein said air duct is at least two layers.
5. The combustor of claim 4, wherein the air inlet openings of the at least two air ducts are located above the air outlet openings.
6. The combustor according to any one of claims 1 to 5, wherein the first enclosing plate comprises a first rear side plate, a first left side plate, a first right side plate and a first front side plate which are circumferentially interconnected, wherein the first rear side plate, the first left side plate and the first right side plate are integrally formed.
7. The combustor of claim 6, wherein said second shroud comprises a second rear side plate, a second left side plate, a second right side plate and a second front side plate, respectively, circumferentially interconnected, said second rear side plate, said second left side plate and said second right side plate being integrally formed.
8. The combustor of claim 7, wherein the upper end of said second front plate forms a bent plate, said bent plate at least partially attached to the inner sidewall of said first front plate, thereby closing the upper side of said air duct.
9. The combustion chamber as claimed in claim 8, wherein the upper side of the bent plate and the first front plate form an insulating air chamber, and the insulating air chamber is not communicated with the combustion chamber.
10. The combustor of claim 8, wherein a portion of said air inlet openings are disposed adjacent said bent plate.
11. The combustor of claim 1, wherein said air intake openings are elongated.
12. The combustor according to claim 1, wherein the wall of the outlet opening of the second enclosure forms a wind deflector extending towards the inner wall of the first enclosure.
13. A gas-fired appliance, characterized in that it comprises a combustion chamber according to any one of claims 1 to 12.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921868350.4U CN212511829U (en) | 2019-10-31 | 2019-10-31 | Combustion chamber and gas appliance |
| PCT/CN2020/123267 WO2021083047A1 (en) | 2019-10-31 | 2020-10-23 | Combustion chamber and gas apparatus |
| EP20880731.3A EP4043812A4 (en) | 2019-10-31 | 2020-10-23 | Combustion chamber and gas apparatus |
| JP2022525274A JP2023501216A (en) | 2019-10-31 | 2020-10-23 | Combustion chamber and gas system |
| US17/772,501 US20220373178A1 (en) | 2019-10-31 | 2020-10-23 | Combustion chamber and gas apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921868350.4U CN212511829U (en) | 2019-10-31 | 2019-10-31 | Combustion chamber and gas appliance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212511829U true CN212511829U (en) | 2021-02-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921868350.4U Active CN212511829U (en) | 2019-10-31 | 2019-10-31 | Combustion chamber and gas appliance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212511829U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747469A (en) * | 2019-10-31 | 2021-05-04 | 芜湖美的厨卫电器制造有限公司 | Combustion chamber and gas appliance |
-
2019
- 2019-10-31 CN CN201921868350.4U patent/CN212511829U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112747469A (en) * | 2019-10-31 | 2021-05-04 | 芜湖美的厨卫电器制造有限公司 | Combustion chamber and gas appliance |
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