WO2019154045A1 - 燃烧室结构和燃气热水器 - Google Patents

燃烧室结构和燃气热水器 Download PDF

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Publication number
WO2019154045A1
WO2019154045A1 PCT/CN2019/072408 CN2019072408W WO2019154045A1 WO 2019154045 A1 WO2019154045 A1 WO 2019154045A1 CN 2019072408 W CN2019072408 W CN 2019072408W WO 2019154045 A1 WO2019154045 A1 WO 2019154045A1
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WO
WIPO (PCT)
Prior art keywords
combustion chamber
bracket
burner
combustion
air
Prior art date
Application number
PCT/CN2019/072408
Other languages
English (en)
French (fr)
Inventor
黄侨伟
代先锋
吴录文
范威
吴世华
黄茂林
Original Assignee
芜湖美的厨卫电器制造有限公司
美的集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 芜湖美的厨卫电器制造有限公司, 美的集团股份有限公司 filed Critical 芜湖美的厨卫电器制造有限公司
Publication of WO2019154045A1 publication Critical patent/WO2019154045A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • F24H9/1809—Arrangement or mounting of grates or heating means for water heaters
    • F24H9/1832—Arrangement or mounting of combustion heating means, e.g. grates or burners
    • F24H9/1836—Arrangement or mounting of combustion heating means, e.g. grates or burners using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23D—BURNERS
    • F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
    • F23D14/46—Details, e.g. noise reduction means
    • F23D14/72—Safety devices, e.g. operative in case of failure of gas supply
    • F23D14/78—Cooling burner parts
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/107—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using fluid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H9/00—Details
    • F24H9/18—Arrangement or mounting of grates or heating means
    • 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
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]

Definitions

  • the present application relates to the technical field of water heaters, and in particular to a combustion chamber structure and a gas water heater using the same.
  • the conventional dilute-type combustor structure usually adopts a strong drum type rich-light combustion chamber structure, that is, the fan is blown under the combustion chamber by the fan to blow air into the combustion chamber to provide a burner in the combustion chamber. One or two air required.
  • the combustion chamber is required to have a high sealing property, and since the combustion chamber is sealed, the noise of the whistling noise is likely to occur during use of the whole machine.
  • the main object of the present application is to provide a combustion chamber structure that has lower sealing requirements and reduces the risk of vibration whistling.
  • the combustion chamber structure proposed by the present application is applied to a gas water heater, the gas water heater includes a fan, and the combustion chamber structure includes:
  • a housing having a combustion chamber and an opening and an air inlet opening communicating with the combustion chamber;
  • a burner the burner being housed in a combustion chamber, the burner being provided with a combustion crater;
  • An exhaust bracket connected between the burner and an inner wall of the combustion chamber, the exhaust bracket separating the combustion chamber into a combustion chamber communicating with the opening and the inlet air a flow guiding cavity communicating with the hole, the combustion burner is located in the combustion cavity, the exhaust bracket is spaced apart from the plurality of flow guiding holes, wherein the guiding hole communicates with the combustion cavity and the guiding cavity, and The flow guiding hole is disposed adjacent to the combustion crater;
  • the fan is disposed adjacent to the opening, and the fan draws air such that air is discharged from the opening after entering the combustion chamber through the air inlet.
  • the exhaust bracket includes a first bracket and a second bracket disposed opposite to each other, and a third bracket and a fourth bracket disposed opposite to each other, the first bracket, the third bracket, the second bracket, and the fourth bracket Arranged around the burner in turn, the first to fourth brackets are each provided with the flow guiding hole.
  • a plurality of protrusions are formed on opposite sides of the burner, and the first bracket and the second bracket are respectively provided with a plurality of card slots, and each of the bumps is plugged into one Card slot.
  • a plurality of burner monoliths are arranged side by side in the burner, and the burner is monolithically formed with the bumps.
  • the first bracket includes a first connecting portion connected to an inner wall of the combustion chamber and a first engaging portion at an angled connection with the first connecting portion, where the first engaging portion is located at Between the inner wall of the combustion chamber and the exterior of the burner, the first engaging portion is provided with the card slot;
  • the first engaging portion is provided with the guiding hole, and/or the connecting portion of the first connecting portion and the first engaging portion is opened.
  • one of the first connecting portion and the inner wall of the combustion chamber is provided with a limiting protrusion, and the other is provided with a limiting groove, the limiting protrusion and the limiting groove card Cooperate.
  • the second bracket includes a second connecting portion connected to an inner wall of the combustion chamber, and second and third cards respectively connected at opposite ends of the second connecting portion at an angle a second engaging portion and the third engaging portion are sequentially disposed between the inner wall of the combustion chamber and the outside of the burner by the air inlet hole to the opening, and The second latching portion and the third latching portion are respectively provided with the card slot;
  • the third engaging portion is provided with the guiding hole, and/or the connecting portion of the second connecting portion and the third engaging portion is provided with the guiding hole.
  • the second engaging portion is provided with a first air guiding through hole; and/or a connecting portion of the second connecting portion and the second engaging portion is provided with a second air guiding through hole.
  • a diameter of the first air guiding via is larger than an aperture of the air guiding hole.
  • the second connecting portion is provided with a positioning protrusion, and the inner wall of the combustion chamber is recessed with a positioning groove, and the positioning protrusion is engaged in the positioning groove.
  • the third bracket includes a third connecting portion connected to an inner wall of the combustion chamber and a first air guiding portion at an angled connection with the third connecting portion, where the first air guiding portion is located Between the inner wall of the combustion chamber and the exterior of the burner;
  • the first air guiding portion is provided with the air guiding hole, and/or the connecting portion of the third connecting portion and the first air guiding portion is opened.
  • the burner is provided with a first gas inlet and a second gas inlet
  • the housing is further provided with a first mounting via and a second mounting via communicating with the combustion chamber, the first The gas inlet is in communication with the first mounting via, and the second gas inlet is in communication with the second mounting via.
  • the housing includes a first housing and a second housing that are connected, the first housing includes a first side and a bottom that are connected, and the second housing includes a second side, a third side portion and a fourth side portion extending from opposite sides of the second side portion, the third side portion and the fourth side portion are connected to the bottom portion, and the two sides of the first side portion are respectively connected to
  • the third side portion and the fourth side portion are provided with the air inlet hole, and the bottom portion, the first side portion to the fourth side portion are enclosed to form the combustion chamber and the opening.
  • the first side portion is further provided with a fire sight and an ignition via.
  • first outer casing and the second outer casing are of a unitary structure.
  • a surface of the third side opposite to the fourth side portion is convexly provided with a first bearing portion
  • a surface of the fourth side portion opposite to the third side portion is convexly provided with a second bearing portion
  • a first limiting portion is protruded from a surface of the third side portion opposite to the fourth side portion
  • a second limiting portion is protruded from a surface of the fourth side portion opposite to the third side portion.
  • Two sides of the first side portion are respectively connected to the first limiting portion and the second limiting portion.
  • the present application also provides a gas water heater comprising a fan and a combustion chamber structure, the fan being disposed adjacent to the opening, the combustion chamber structure comprising:
  • a housing having a combustion chamber and an opening and an air inlet opening communicating with the combustion chamber;
  • a burner the burner being housed in a combustion chamber, the burner being provided with a combustion crater;
  • An exhaust bracket connected between the burner and an inner wall of the combustion chamber, the exhaust bracket separating the combustion chamber into a combustion chamber communicating with the opening and the inlet air a flow guiding cavity communicating with the hole, the combustion burner is located in the combustion cavity, the exhaust bracket is spaced apart from the plurality of flow guiding holes, wherein the guiding hole communicates with the combustion cavity and the guiding cavity, and The flow guiding hole is disposed adjacent to the combustion crater;
  • the fan is disposed adjacent to the opening, and the fan draws air such that air is discharged from the opening after entering the combustion chamber through the air inlet.
  • the combustion chamber structure of the technical solution of the present application uses a fan to pulsate air during use, so that air is discharged from the air inlet hole into the combustion chamber and is discharged from the opening.
  • the sealing requirement of the combustion chamber is reduced. Therefore, the combustion chamber can be set to be not fully sealed, which reduces the risk of vibration and howling, and can meet the user's demand for reducing noise when applied to a gas water heater.
  • the burner is connected to the inner wall of the combustion chamber through the exhaust bracket, thereby limiting the position of the burner to avoid the problem of sloshing of the burner, and providing a diversion hole through the exhaust bracket for guiding the diversion
  • the air in the cavity is diverted into the combustion chamber, and the air guided by the diversion hole can replenish the combustion of the combustion crater with secondary air, which is beneficial to more complete combustion of the gas, and the energy utilization rate of the gas combustion is higher and lower
  • the discharge of pollutants such as nitrogen oxides caused by incomplete combustion is energy-saving and environmentally friendly; at the same time, the air guiding holes provided on the exhaust bracket can guide the air with lower temperature in the diversion chamber into the combustion chamber, and A flowing air layer is formed between the combustion crater of the burner and the inner wall of the combustion chamber, the flowing air layer capable of carrying a large amount of heat, which can generate a higher temperature between the combustion crater and the inner wall of the combustion chamber Phase isolation, so as to have the effect of heat insulation and cooling on the inner wall of the
  • FIG. 1 is a schematic structural view of an embodiment of a combustion chamber structure of the present application.
  • Figure 2 is a front elevational view of the combustion chamber structure shown in Figure 1;
  • Figure 3 is a bottom plan view of the combustion chamber structure shown in Figure 1;
  • Figure 4 is a plan view of the combustion chamber structure shown in Figure 1;
  • Figure 5 is a schematic view showing the internal structure of the combustion chamber structure shown in Figure 1;
  • Figure 6 is an exploded view of the combustion chamber structure shown in Figure 1;
  • Figure 7 is a schematic structural view of the first bracket in the combustion chamber structure shown in Figure 6;
  • Figure 8 is a schematic structural view of a second bracket in the combustion chamber structure shown in Figure 6;
  • FIG. 9 is a schematic structural view of a third bracket or a fourth bracket in the combustion chamber structure shown in FIG. 6.
  • Label name Label name 100 Combustion chamber structure 202 First gas inlet 10 Housing 203 Second gas inlet 101 Combustion chamber twenty one Bump 1011 Combustion chamber 30 Exhaust bracket 1012 Diversion lumen 301 Diversion hole 1013 Positioning slot 302 Card slot 102 Opening 31 First bracket 103 Air inlet 311 First connection 104 First mounting via 312 First card joint 105 Second mounting via 32 Second bracket 11 First outer casing 321 Second connection 111 First side 3211 Second air guiding through hole 112 Bottom 3212 Positioning bulge 12 Second outer casing 322 Second card joint 121 Second side 3221 First air guiding through hole 122 Third side 323 Third card joint 1221 First carrier 33 Third bracket 1222 First limit 331 Third connection 1231 Second carrier 332 First air guiding part 1232 Second limit 34 Fourth bracket 123 Fourth side 341 Fourth connection 20 burner 342 Second air guiding part 201 Burning mouth 40 Fan
  • first”, “second”, and the like in this application are used for the purpose of description only, and are not to be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated.
  • features defining “first” or “second” may include at least one of the features, either explicitly or implicitly.
  • the technical solutions between the various embodiments may be combined with each other, but must be based on the realization of those skilled in the art, and when the combination of the technical solutions is contradictory or impossible to implement, it should be considered that the combination of the technical solutions does not exist. Nor is it within the scope of protection required by this application.
  • fixed may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • fix may be a fixed connection, or may be a detachable connection, or may be integrated; It may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship of two elements unless explicitly defined otherwise.
  • specific meanings of the above terms in the present application can be understood on a case-by-case basis.
  • the present application proposes a combustor structure 100.
  • the combustion chamber structure 100 in an embodiment of the present application is applied to a gas water heater, and the gas water heater includes a fan 40.
  • the combustion chamber structure 100 includes:
  • a housing 10 is provided with a combustion chamber 101, and an opening 102 and an air inlet opening 103 communicating with the combustion chamber 101;
  • the burner 20 is housed in the combustion chamber 101, and the burner 20 is provided with a combustion burner 201;
  • the exhaust bracket 30 is connected between the combustor 20 and the inner wall of the combustion chamber 101.
  • the exhaust bracket 30 divides the combustion chamber 101 into a combustion chamber 1011 communicating with the opening 102 and a diversion flow communicating with the air inlet 103.
  • the cavity 1012 is located in the combustion chamber 1011.
  • the exhaust bracket 30 is spaced apart from the combustion chamber 1011.
  • the flow guiding hole 301 communicates with the combustion chamber 1011 and the guiding chamber 1012, and the guiding hole 301 is adjacent to the combustion port 201. Setting
  • the blower 40 is disposed adjacent to the opening 102, and the blower 40 draws air so that air enters the combustion chamber 101 from the air inlet 103 and is discharged by the opening 102.
  • the casing 10 has a rectangular tubular shape with the opening facing upward and the bottom closed, and the air inlet hole 103 is opened at the bottom of the casing 10, and communicates up and down to form the combustion chamber 101.
  • the combustor structure 100 of the present application may be selected for use in a rich-lean combustor, i.e., optionally in a combustor combusted with rich gas and light gas input for mixed combustion.
  • the exhaust bracket 30 and the inner wall of the combustion chamber 101 may be fixedly connected or detachably connected by one, two or more combinations of snapping, screwing or welding;
  • the bracket 30 and the exterior of the burner 20 may be fixedly connected or detachably connected by one, two or more combinations of snapping, screwing or welding, that is, through the exhaust bracket 30.
  • the exhaust bracket 30 can be made of a material such as a metal that is resistant to high temperatures and hard.
  • the guiding hole 301 mainly serves to conduct and guide the flow of the gas.
  • the plurality of guiding holes 301 can be evenly spaced and disposed around the combustion burner 201 of the burner 20, and the guide on the exhaust bracket 30.
  • the flow holes 301 can be arranged in a radial arrangement, a mesh arrangement or an array arrangement, etc., so that the air distribution into the combustion chamber 1011 by the flow guiding holes 301 is more uniform, which is more favorable for the combustion of the burner 20.
  • the secondary air is supplemented to make the combustion of the burner 20 more sufficient, the combustion flame of the combustion burner 201 is more uniform, and the howling noise generated during combustion can be further eliminated, and the experience of the user can be improved when applied to the gas water heater. Comfort value.
  • the shape of the guiding hole 301 can be various, such as a circle, an ellipse, a triangle, a quadrangle, a polygon, etc., and can be set according to actual conditions in a specific application. Further, the number of the flow guiding holes 301, the size of the aperture of the flow guiding holes 301, and the size of the spacing between the adjacent flow guiding holes 301 can be set according to a specific application.
  • the combustor structure 100 of the technical solution of the present application uses the blower 40 to draw air during use, so that the air enters the combustion chamber 101 from the air inlet hole 103 and is discharged by the opening 102.
  • the combustion is reduced.
  • the burner 20 is connected to the inner wall of the combustion chamber 101 through the exhaust bracket 30, thereby limiting the fixing of the burner 20, avoiding the problem of the sloshing of the burner 20, and providing the flow guiding hole 301 through the exhaust bracket 30.
  • the air guided by the diversion hole 301 can replenish the combustion of the combustion crater 201 with secondary air, which is beneficial to more complete combustion of the gas.
  • the energy utilization rate of the gas combustion is higher, and the emission of pollutants such as nitrogen oxides caused by incomplete combustion is also reduced, which is energy-saving and environmentally friendly; at the same time, the flow guiding hole 301 provided on the exhaust bracket 30 can guide the flow guiding cavity 1012
  • the lower internal temperature air is conducted into the combustion chamber 1011, and a flowing air layer is formed between the combustion burner 201 of the burner 20 and the inner wall of the combustion chamber 101, and the flowing air layer can carry a large amount of heat.
  • the high temperature generated when the combustion crater 201 is burned can be isolated from the inner wall of the combustion chamber 101, thereby having the effect of heat insulation and cooling on the inner wall of the combustion chamber 101, effectively reducing the working condition of the combustion chamber structure 10.
  • Body temperature 10, and the heat can sufficiently be applied to the gas generated by the combustion heat of the water, improving the heating efficiency.
  • the exhaust bracket 30 includes a first bracket 31 and a second bracket 32 disposed opposite to each other, and a third bracket 33 and a fourth bracket 34 disposed opposite to each other, the first bracket 31 and the third bracket
  • the bracket 33, the second bracket 32 and the fourth bracket 34 are arranged in a circle around the burner 20 in sequence, and the first bracket 31 to the fourth bracket 34 are each provided with a flow guiding hole 301.
  • the assembly is quick and easy, and the first bracket 31 to the fourth bracket are passed.
  • 34 has a guiding hole 301, which is more reasonable and more uniform for the distribution of the air guiding, helps to uniformly supply the secondary air, promotes the full combustion of the gas, and forms a flowing air layer surrounding the combustion port 201 of the burner 20.
  • the heat insulation effect on the inner wall of the combustion chamber 101 is more effective and effective.
  • a plurality of bumps 21 are protruded from opposite sides of the burner 20 , and the first bracket 31 and the second bracket 32 are respectively provided with a plurality of card slots 302 , each convex The blocks 21 are all plugged into a card slot 302.
  • a plurality of burner monoliths are arranged side by side in the burner 20 , and the burners are formed into a single piece of the bumps 21 , and in order to fix the single piece of the burner and further fix the burner 20 ,
  • the latching holes 21 are engaged with the latches 21 through the oppositely disposed first brackets 31 and the second brackets 32, and the slots of the slot 302 are oriented inward, that is, each burner is clamped and fixed.
  • the burners are individually fixed in the front, rear, left and right directions, and the problem of the sloshing of the burner 20 during operation is avoided, so that the first bracket 31 and the second bracket 32 have both The function of diversion air and limit fixed burner monolith.
  • the first bracket 31 includes a first connecting portion 311 connected to the inner wall of the combustion chamber 101 and a first engaging portion 312 connected at an angle to the first connecting portion 311.
  • the first engaging portion 312 is located in the combustion chamber 101. Between the inner wall and the outside of the burner 20, the first engaging portion 312 is provided with a card slot 302; the first engaging portion 312 is provided with a guiding hole 301, and/or the first connecting portion 312 and the first engaging portion A flow guiding hole 301 is opened at the joint of 312.
  • one of the first connecting portion 311 and the inner wall of the combustion chamber 101 may also be provided with a limiting protrusion, and the other is provided with a limiting groove, and the card passing through the limiting protrusion and the limiting groove The positioning between the first connecting portion 311 and the inner wall of the combustion chamber 101 is completed, and then the first bracket 31 can be fixedly coupled to the inner wall of the combustion chamber 101 by welding or the like.
  • one of the first latching portion 312, the first connecting portion 312 and the first latching portion 312 is provided with a flow guiding hole 301, or both of them are provided with a guiding hole 301. It can be set according to the specific application.
  • a flow guiding hole 301 is provided at a first engaging portion 312 between the inner wall of the combustion chamber 101 and the outside of the combustor 20 for use between the combustion burner 201 of the combustor 20 and the inner wall of the combustion chamber 101.
  • Forming a flowing air layer can supplement the secondary air of the combustion of the combustor 20, and can isolate the higher temperature generated by the combustion vent 201 from burning with the inner wall of the combustion chamber 101, thereby
  • the inner wall has the function of heat insulation and cooling.
  • the connection between the first connecting portion 312 and the first engaging portion 312 is provided with a flow guiding hole 301, so that the air below can be quickly discharged upwardly from the guiding hole 301, thereby avoiding the accumulation of gas in the adjacent portion and achieving Better insulation and cooling, reducing the temperature rise of the housing 10 during operation.
  • the second bracket 32 includes a second connecting portion 321 connected to the inner wall of the combustion chamber 101, and a second connecting portion respectively connected to the opposite ends of the second connecting portion 321 at an angle.
  • the second latching portion 322 and the third latching portion 323, the second latching portion 322 and the third latching portion 323 are sequentially disposed in the direction from the air inlet hole 103 to the opening 102 to the inner wall of the combustion chamber 101 and the outside of the combustor 20
  • the second latching portion 322 and the third latching portion 323 are respectively provided with the card slot 302; the third latching portion 323 is provided with the air guiding hole 301, and/or the second connecting portion 321 and the third card
  • a flow guiding hole 301 is defined in the joint of the joint portion 323.
  • connection portion of the third latching portion 323, the second connecting portion 321 and the third latching portion 323 is provided with a flow guiding hole 301, or both of them are provided with a guiding hole 301. It can be set according to the specific application.
  • a flow guiding hole 301 is provided at a second catching portion 322 between the inner wall of the combustion chamber 101 and the outside of the combustor 20 for use between the combustion burner 201 of the combustor 20 and the inner wall of the combustion chamber 101.
  • Forming a flowing air layer can supplement the secondary air of the combustion of the combustor 20, and can isolate the higher temperature generated by the combustion vent 201 from burning with the inner wall of the combustion chamber 101, thereby
  • the inner wall has the function of heat insulation and cooling.
  • the gas flowability here is poor, in order to avoid the occurrence of the adjacent dead angle, the gas flow performance at the place is improved, and a better cooling effect is achieved.
  • connection between the second connecting portion 321 and the third engaging portion 323 is provided with a flow guiding hole 301, so that the air below can be quickly discharged upwardly from the guiding hole 301, thereby avoiding the accumulation of gas in the adjacent portion and achieving Better insulation and cooling, reducing the temperature rise of the housing 10 during operation.
  • the second engaging portion 322 is provided with a first air guiding through hole 3221; and/or a second air guiding through hole 3211 is formed at a joint of the second connecting portion 321 and the second engaging portion 322.
  • the three latching portions 323 are further passed through the air guiding hole 301 at the third latching portion 323 or the air guiding hole 301 at the junction of the second connecting portion 321 and the third latching portion 323 to enter the combustion chamber 1011.
  • the secondary air is supplied to the combustion of the burner 20 and is insulated and cooled. That is, as shown in FIG. 5, in the flow direction of the air, the first air guiding through hole 3221 and the second air guiding through hole 3211 are both before the air guiding hole 301, as shown in FIG.
  • the first air guiding through hole 3221 The aperture is larger than the aperture of the air guiding hole 301 opened at the third latching portion 323 or larger than the aperture of the air guiding hole 301 formed at the junction of the second connecting portion 321 and the third latching portion 323, thereby facilitating air.
  • the air flow passage hole 3221 is quickly passed through, and the air intake amount is increased, and then the air distribution adjustment and uniform arrangement are required through the air guiding hole 301.
  • the second connecting portion 321 is provided with a positioning protrusion 3212.
  • the inner wall of the combustion chamber 101 is recessed with a positioning groove 1013, and the positioning protrusion 3212 is engaged in the positioning groove 1013.
  • the positioning protrusion 3212 disposed on the second connecting portion 321 is engaged with the positioning groove 1013 recessed in the inner wall of the combustion chamber 101, and the second bracket 32 can be quickly and simply positioned in the combustion chamber 101 during assembly. Then, the second bracket 32 can be fixed to the inner wall of the combustion chamber 101 by welding or the like, that is, the positioning protrusion 3212 and the positioning groove 1013 are more advantageous for assembly and fixing, thereby improving the installation efficiency.
  • the third bracket 33 includes a third connecting portion 331 connected to the inner wall of the combustion chamber 101 and a first air guiding portion 332 which is connected to the third connecting portion 331 at an angle.
  • the first air guiding portion 332 is located between the inner wall of the combustion chamber 101 and the outside of the combustor 20; the first air guiding portion 332 is provided with a flow guiding hole 301, and/or the third connecting portion 331 and the first air guiding portion A flow guiding hole 301 is opened at the joint of the 332.
  • one of the third connecting portion 331 and the inner wall of the combustion chamber 101 may be provided with a limiting protrusion, and the other is provided with a limiting groove, which is engaged by the limiting protrusion and the limiting groove.
  • the positioning between the third connecting portion 331 and the inner wall of the combustion chamber 101 is completed, and then the third bracket 33 can be fixedly coupled to the inner wall of the combustion chamber 101 by welding or the like.
  • one of the first air guiding portion 332, the third connecting portion 331 and the first air guiding portion 332 is provided with a guiding hole 301, or both of them are provided with a guiding hole 301. It can be set according to the specific application.
  • a flow guiding hole 301 is provided at the first air guiding portion 332 between the inner wall of the combustion chamber 101 and the outside of the combustor 20 for use between the combustion burner 201 of the combustor 20 and the inner wall of the combustion chamber 101. Forming a flowing air layer can supplement the secondary air of the combustion of the combustor 20, and can isolate the higher temperature generated by the combustion vent 201 from burning with the inner wall of the combustion chamber 101, thereby The inner wall has the function of heat insulation and cooling.
  • the gas flow performance at the place is improved, and a better cooling effect is achieved.
  • the opening of the third connecting portion 331 and the first air guiding portion 332 is provided with a flow guiding hole 301, so that the lower air can be quickly discharged upwardly from the guiding hole 301, thereby avoiding the accumulation of gas in the adjacent portion and achieving Better insulation and cooling, reducing the temperature rise of the housing 10 during operation.
  • the fourth bracket 34 includes a fourth connecting portion 341 connected to the inner wall of the combustion chamber 101 and a second air guiding portion 342 connected at an angle to the fourth connecting portion 341.
  • the second air guiding portion 342 is located between the inner wall of the combustion chamber 101 and the outside of the combustor 20; the second air guiding portion 342 is provided with the air guiding hole 301, and/or the fourth connecting portion 341 and the second air guiding portion A flow guiding hole 301 is opened at the joint of 342.
  • one of the fourth connecting portion 341 and the inner wall of the combustion chamber 101 may be provided with a limiting protrusion, and the other is provided with a limiting groove, which is engaged by the limiting protrusion and the limiting groove.
  • the positioning between the fourth connecting portion 341 and the inner wall of the combustion chamber 101 is completed, and then the fourth bracket 34 can be fixedly coupled to the inner wall of the combustion chamber 101 by welding or the like.
  • connection portions of the second air guiding portion 342, the fourth connecting portion 341 and the second air guiding portion 342 is provided with a guiding hole 301, or both of them are provided with a guiding hole 301. It can be set according to the specific application.
  • a flow guiding hole 301 is provided at a second air guiding portion 342 between the inner wall of the combustion chamber 101 and the outside of the combustor 20 for use between the combustion burner 201 of the combustor 20 and the inner wall of the combustion chamber 101.
  • Forming a flowing air layer can supplement the secondary air of the combustion of the combustor 20, and can isolate the higher temperature generated by the combustion vent 201 from burning with the inner wall of the combustion chamber 101, thereby
  • the inner wall has the function of heat insulation and cooling.
  • the gas flowability here is poor, in order to avoid the occurrence of the adjacent dead angle, the gas flow performance at the place is improved, and a better cooling effect is achieved.
  • connection between the fourth connecting portion 341 and the second air guiding portion 342 is provided with a flow guiding hole 301, so that the lower air can be quickly discharged upwardly from the guiding hole 301, thereby avoiding the accumulation of gas in the adjacent portion and achieving Better insulation and cooling, reducing the temperature rise of the housing 10 during operation.
  • the burner 20 is provided with a first gas inlet 202 and a second gas inlet 203
  • the housing 10 is further provided with a first mounting via 104 communicating with the combustion chamber 101 and
  • the second mounting via 105 communicates with the first mounting via 104 and the second gas inlet 203 is in communication with the second mounting via 105.
  • the first gas inlet 202 and the second gas inlet 203 are respectively used for input of rich gas and light gas, and the installation and passage of the gas pipeline are facilitated by the first mounting hole 104 and the second mounting hole 105.
  • the housing 10 includes a first housing 11 and a second housing 12 that are connected.
  • the first housing 11 includes a first side portion 111 and a bottom portion 112 that are connected to each other.
  • the outer casing 12 includes a second side portion 121 , a third side portion 122 and a fourth side portion 123 extending from opposite sides of the second side portion 121 , and the third side portion 122 and the fourth side portion 123 are connected to the bottom portion 112 .
  • the two sides of the first side portion 111 are respectively connected to the third side portion 122 and the fourth side portion 123.
  • the bottom portion 112 is provided with an air inlet hole 103, and the bottom portion 112 and the first side portion 111 to the fourth side portion 123 are enclosed to form a combustion. Room 101 and opening 102.
  • a stepped step is formed on the first side portion 111.
  • the first side portion 111 is further provided with a fire hole, an ignition via for ignition, and the like.
  • the portion 111 is provided with a first mounting via 104, a second mounting via 105, and the like for respectively burning the rich and light gas in the rich gas input burner 20.
  • the first outer casing 11 and the second outer casing 12 are respectively provided as an integrally formed structure to reduce the assembly step and improve the assembly efficiency.
  • the outer shape of the second outer casing 12 has a U-shaped structure, and only the first side portion 111 and the bottom portion 112 of the first outer casing 11 are required to correspond to the U-shaped structure of the second outer casing 12 during the installation, and the insertion and positioning are performed.
  • the connection is fixed, the assembly of the casing 10 can be completed, and the problem that the assembly parts of the casing 10 are excessive, the assembly process is large, and the assembly efficiency is lowered can be reduced.
  • the surface of the third side portion 122 opposite to the fourth side portion 123 is convexly provided with a first bearing portion 1221 , and the fourth side portion 123 is opposite to the third side portion 122 .
  • the second bearing portion 1231 is convexly disposed on the surface, and the two sides of the bottom portion 112 are respectively carried on the first bearing portion 1221 and the second bearing portion 1231;
  • a surface of the third side portion 122 opposite to the fourth side portion 123 is convexly provided with a first limiting portion 1222
  • a surface of the fourth side portion 123 opposite to the third side portion 122 is convexly provided with a second limiting portion 1232
  • the two sides of the first side portion 111 are respectively connected to the first limiting portion 1222 and the second limiting portion 1232.
  • the first load-bearing portion 1221 and the second load-bearing portion 1231 carry the gravity load on the bottom portion 112 and the first side portion 111 in the vertical direction, and the first load-bearing portion 1221 and the second load-bearing portion 1231 start on the first load-bearing portion 1221 and the second load-bearing portion 1231.
  • a connecting member such as a bolt or a screw.
  • the present application also provides a gas water heater including a fan 40 and a combustor structure 100.
  • the specific structure of the combustor structure 100 refers to the above embodiment, and since the gas water heater adopts all the technical solutions of all the above embodiments, At least the advantages of the technical solutions of the above embodiments are not repeated here.
  • the fan 40 can adopt various types of fans, such as a centrifugal fan, a cross-flow fan or an axial fan, etc., and only the fan 40 can be used to draw air, and the air in the combustion chamber 101 can be extracted from the opening 102, which can be strongly pumped.
  • the purpose of the type of combustion chamber to create air flow conditions is that the specific type of fan 40 can be selected according to the actual situation.

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Abstract

一种燃烧室结构（100）和应用该燃烧室结构（100）的燃气热水器。该燃气热水器包括风机（40）。该燃烧室结构（100）包括：壳体（10），壳体（10）内设有燃烧室（101）、和与该燃烧室（101）连通的开口（102）和进风孔（103）；燃烧器（20），燃烧器（20）容置于燃烧室（101）内，燃烧器（20）设有燃烧火口（201）；及排气支架（30），排气支架（30）连接于燃烧器（20）和燃烧室（101）内壁之间，排气支架（30）将燃烧室（101）分隔为与开口（102）连通的燃烧腔（1011）和与进风孔（103）连通的导流腔（1012），燃烧火口（201）位于燃烧腔（1011）内，排气支架（30）间隔开设有多个导流孔（301），导流孔（301）连通燃烧腔（1011）和导流腔（1012），且导流孔（301）邻近于燃烧火口（201）设置；风机（40）邻近开口（102）设置，风机（40）抽动空气，以使空气从进风孔（103）进入燃烧室（101）后由开口（102）排出。

Description

燃烧室结构和燃气热水器
相关申请
本申请要求2018年02月10日申请的，申请号为201810140889.1，名称为“燃烧室结构和燃气热水器”的中国专利申请的优先权，在此将其全文引入作为参考。
技术领域
本申请涉及热水器技术领域，特别涉及一种燃烧室结构和应用该燃烧室结构的燃气热水器。
背景技术
传统的浓淡型燃烧室结构通常采用的是强鼓型的浓淡燃烧室结构，即，将风机在燃烧室的下方，通过风机鼓风的方式往燃烧室内吹气，以提供燃烧室内的燃烧器所需的一二次空气。
然而，由于燃烧室内采用的是强鼓式的燃烧，则要求燃烧室具有较高的密封性，而由于燃烧室密闭，则会使得整机在使用过程中容易出现震动啸叫的噪音等问题。
申请内容
本申请的主要目的是提供一种燃烧室结构，其密封性要求较低且减少了震动啸叫的风险。
为实现上述目的，本申请提出的燃烧室结构，应用于燃气热水器，该燃气热水器包括风机，所述燃烧室结构包括：
壳体，所述壳体内设有燃烧室、和与该燃烧室连通的开口和进风孔；
燃烧器，所述燃烧器容置于燃烧室内，所述燃烧器设有燃烧火口；及
排气支架，所述排气支架连接于所述燃烧器和所述燃烧室内壁之间，所述排气支架将所述燃烧室分隔为与所述开口连通的燃烧腔和与所述进风孔连通的导流腔，所述燃烧火口位于所述燃烧腔内，所述排气支架间隔开设有多个导流孔，所述导流孔连通所述燃烧腔和所述导流腔，且所述导流孔邻近于所述燃烧火口设置；
所述风机邻近所述开口设置，所述风机抽动空气，以使空气从所述进风孔进入所述燃烧室后由所述开口排出。
可选地，所述排气支架包括相对设置的第一支架和第二支架、及相对设置的第三支架和第四支架，所述第一支架、第三支架、第二支架及第四支架依次围合排布于所述燃烧器的四周，所述第一至第四支架均开设有所述导流孔。
可选地，所述燃烧器的相对两侧均延伸凸设有多个凸块，所述第一支架和所述第二支架均开设有多个卡槽，每一凸块均插接于一卡槽。
可选地，所述燃烧器内并排设有多个燃烧器单片，所述燃烧器单片形成有所述凸块。
可选地，所述第一支架包括与所述燃烧室的内壁连接的第一连接部和与该第一连接部呈夹角连接的第一卡接部，所述第一卡接部位于所述燃烧室的内壁和所述燃烧器的外部之间，所述第一卡接部开设有所述卡槽；
所述第一卡接部开设有所述导流孔，且/或，所述第一连接部和所述第一卡接部的连接处开设有所述导流孔。
可选地，所述第一连接部和燃烧室的内壁两者中之一者设置限位凸起，另一者设置限位凹槽，所述限位凸起和所述限位凹槽卡接配合。
可选地，所述第二支架包括与所述燃烧室的内壁连接的第二连接部、和分别呈夹角连接于所述第二连接部的相对两端的第二卡接部和第三卡接部，所述第二卡接部和所述第三卡接部由所述进风孔至所述开口的方向依次设置于所述燃烧室的内壁和所述燃烧器的外部之间，且所述第二卡接部和所述第三卡接部均开设有所述卡槽；
所述第三卡接部开设有所述导流孔，且/或，所述第二连接部和所述第三卡接部的连接处开设有所述导流孔。
可选地，所述第二卡接部开设有第一导风过孔；且/或，所述第二连接部和所述第二卡接部的连接处开设有第二导风过孔。
可选地，所述第一导风过孔的孔径大于所述导流孔的孔径。
可选地，所述第二连接部设有定位凸起，所述燃烧室的内壁凹设有定位槽，所述定位凸起卡接于所述定位槽内。
可选地，所述第三支架包括与所述燃烧室的内壁连接的第三连接部和与所述第三连接部呈夹角连接的第一导风部，所述第一导风部位于所述燃烧室的内壁和所述燃烧器的外部之间；
所述第一导风部开设有所述导流孔，且/或，所述第三连接部和所述第一导风部的连接处开设有所述导流孔。
可选地，所述燃烧器设有第一燃气进口和第二燃气进口，所述壳体还开设有与所述燃烧室连通的第一安装过孔和第二安装过孔，所述第一燃气进口与所述第一安装过孔连通，所述第二燃气进口与所述第二安装过孔连通。
可选地，所述壳体包括相连接的第一外壳和第二外壳，所述第一外壳包括相连接的第一侧部和底部，所述第二外壳包括第二侧部、由所述第二侧部的相对两侧延伸形成的第三侧部及第四侧部，所述第三侧部和第四侧部连接于所述底部，所述第一侧部的两侧分别连接于所述第三侧部和第四侧部，所述底部开设有所述进风孔，所述底部、所述第一侧部至第四侧部围合形成所述燃烧室和所述开口。
可选地，所述第一侧部还开设有观火孔和点火过孔。
可选地，所述第一外壳和所述第二外壳为一体结构。
可选地，所述第三侧部与所述第四侧部相对的表面凸设有第一承载部，所述第四侧部与所述第三侧部相对的表面凸设有第二承载部，所述底部的两侧分别承载于所述第一承载部和第二承载部；且/或，
所述第三侧部与所述第四侧部相对的表面凸设有第一限位部，所述第四侧部与所述第三侧部相对的表面凸设有第二限位部，所述第一侧部的两侧分别连接于所述第一限位部和第二限位部。
本申请还提出一种燃气热水器，包括风机和燃烧室结构，所述风机邻近所述开口设置，所述燃烧室结构包括：
壳体，所述壳体内设有燃烧室、和与该燃烧室连通的开口和进风孔；
燃烧器，所述燃烧器容置于燃烧室内，所述燃烧器设有燃烧火口；及
排气支架，所述排气支架连接于所述燃烧器和所述燃烧室内壁之间，所述排气支架将所述燃烧室分隔为与所述开口连通的燃烧腔和与所述进风孔连通的导流腔，所述燃烧火口位于所述燃烧腔内，所述排气支架间隔开设有多个导流孔，所述导流孔连通所述燃烧腔和所述导流腔，且所述导流孔邻近于所述燃烧火口设置；
所述风机邻近所述开口设置，所述风机抽动空气，以使空气从所述进风孔进入所述燃烧室后由所述开口排出。
本申请技术方案的燃烧室结构在使用时采用风机抽动空气，以使空气从进风孔进入燃烧室后由开口排出，通过设置该强抽型的燃烧室结构，降低了燃烧室的密封性要求，从而燃烧室可设置为未全密封，减少了震动啸叫的风险，能够满足应用于燃气热水器时降低噪音的用户需求。并且，通过排气支架将燃烧器与燃烧室的内壁连接，从而对燃烧器进行限位固定，避免燃烧器出现晃动的问题，以及通过于排气支架设置导流孔，以用于将导流腔内的空气导流至燃烧腔内，该导流孔导流的空气能够对燃烧火口的燃烧进行二次空气的补充，利于燃气更加充分的燃烧，燃气燃烧的能量利用率更高，也降低了不完全燃烧而导致的氮氧化物等污染物的排放，节能环保；同时，于排气支架上设置的导流孔能够将导流腔内温度较低的空气导流至燃烧腔内，并在燃烧器的燃烧火口与燃烧室的内壁之间形成一流动的空气层，该流动的空气层能够带走大量的热量，能够将燃烧火口燃烧时产生较高的温度与燃烧室的内壁之间相隔离，从而对燃烧室的内壁具有隔热降温的作用，有效地降低燃烧室结构工作时壳体的温升，并能将燃气燃烧产生的热量充分应用于对水的加热，提高了加热效率。
附图说明
为了更清楚地说明本申请实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本申请的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图示出的结构获得其他的附图。
图1为本申请燃烧室结构一实施例的结构示意图；
图2为图1所示的燃烧室结构的前视图；
图3为图1所示的燃烧室结构的仰视图；
图4为图1所示的燃烧室结构的俯视图；
图5为图1所示的燃烧室结构的内部结构示意图；
图6为图1所示的燃烧室结构的爆炸图；
图7为图6所示的燃烧室结构中第一支架的结构示意图；
图8为图6所示的燃烧室结构中第二支架的结构示意图；
图9为图6所示的燃烧室结构中第三支架或第四支架的结构示意图。
附图标号说明：
标号 名称 标号 名称
100 燃烧室结构 202 第一燃气进口
10 壳体 203 第二燃气进口
101 燃烧室 21 凸块
1011 燃烧腔 30 排气支架
1012 导流腔 301 导流孔
1013 定位槽 302 卡槽
102 开口 31 第一支架
103 进风孔 311 第一连接部
104 第一安装过孔 312 第一卡接部
105 第二安装过孔 32 第二支架
11 第一外壳 321 第二连接部
111 第一侧部 3211 第二导风过孔
112 底部 3212 定位凸起
12 第二外壳 322 第二卡接部
121 第二侧部 3221 第一导风过孔
122 第三侧部 323 第三卡接部
1221 第一承载部 33 第三支架
1222 第一限位部 331 第三连接部
1231 第二承载部 332 第一导风部
1232 第二限位部 34 第四支架
123 第四侧部 341 第四连接部
20 燃烧器 342 第二导风部
201 燃烧火口 40 风机
本申请目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。
具体实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本申请的一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
需要说明，本申请实施例中所有方向性指示（诸如上、下、左、右、前、后……）仅用于解释在某一特定姿态（如附图所示）下各部件之间的相对位置关系、运动情况等，如果该特定姿态发生改变时，则该方向性指示也相应地随之改变。
另外，在本申请中涉及“第一”、“第二”等的描述仅用于描述目的，而不能理解为指示或暗示其相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括至少一个该特征。另外，各个实施例之间的技术方案可以相互结合，但是必须是以本领域普通技术人员能够实现为基础，当技术方案的结合出现相互矛盾或无法实现时应当认为这种技术方案的结合不存在，也不在本申请要求的保护范围之内。
在本申请中，除非另有明确的规定和限定，术语“连接”、“固定”等应做广义理解，例如，“固定”可以是固定连接，也可以是可拆卸连接，或成一体；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系，除非另有明确的限定。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
本申请提出一种燃烧室结构100。
请结合参照图1至5所示，本申请一实施例中的燃烧室结构100应用于燃气热水器，该燃气热水器包括风机40，燃烧室结构100包括：
壳体10，壳体10内设有燃烧室101、和与该燃烧室101连通的开口102和进风孔103；
燃烧器20，燃烧器20容置于燃烧室101内，燃烧器20设有燃烧火口201；及
排气支架30，排气支架30连接于燃烧器20和燃烧室101内壁之间，排气支架30将燃烧室101分隔为与开口102连通的燃烧腔1011和与进风孔103连通的导流腔1012，燃烧火口201位于燃烧腔1011内，排气支架30间隔开设有多个导流孔301，导流孔301连通燃烧腔1011和导流腔1012，且导流孔301邻近于燃烧火口201设置；
风机40邻近开口102设置，风机40抽动空气，以使空气从进风孔103进入燃烧室101后由开口102排出。
如图5所示，壳体10呈开口朝上、底部闭合的方形筒状，其进风孔103开设在壳体10的底部，上下连通形成燃烧室101。具体地，本申请的燃烧室结构100可选用于浓淡型燃烧室，即，可选地应用于浓燃气和淡燃气输入进行混合燃烧的燃烧室中。
本申请中排气支架30与燃烧室101的内壁之间可通过卡接、螺纹连接或焊接等方式中的一种、两种或者多种的组合进行固定式连接或可拆卸式连接；排气支架30与燃烧器20的外部之间可通过卡接、螺纹连接或焊接等方式中的一种、两种或者多种的组合进行固定式连接或可拆卸式连接，即，通过排气支架30以将燃烧器20的外部与燃烧室101的内壁之间连接，对燃烧器20进行限位固定，限制燃烧器20的移动并避免其出现晃动的问题。排气支架30可采用耐高温、质地较硬的金属等材料制成。
导流孔301主要起到导通并引导气体流向的作用，可选地，多个导流孔301可间隔均匀并环绕于燃烧器20的燃烧火口201的周围设置，排气支架30上的导流孔301可呈辐射状排布、网状排布或阵列状排布等等，使得导流孔301导流进入燃烧腔1011内的空气分布更加的均匀，更有利于对燃烧器20的燃烧进行二次空气的补充，使燃烧器20的燃烧更加的充分，燃烧火口201的燃烧火焰更加的均匀，并能进一步消除燃烧中产生的啸叫噪音，应用于燃气热水器时能够提升用户使用的体验舒适值。其中，导流孔301的形状设计可有多种，譬如圆形、椭圆形、三角形、四边形及多边形等等，具体应用中可根据实际情形进行设定。此外，导流孔301的数量、导流孔301的孔径大小以及相邻的导流孔301之间的间距大小等等均可根据具体应用进行设定。
本申请技术方案的燃烧室结构100在使用时采用风机40抽动空气，以使空气从进风孔103进入燃烧室101后由开口102排出，通过设置强抽型的燃烧室结构100，降低了燃烧室101的密封性要求，从而燃烧室101可设置为未全密封，减少了震动啸叫的风险，能够满足应用于燃气热水器时降低噪音的用户需求。并且，通过排气支架30将燃烧器20与燃烧室101的内壁连接，从而对燃烧器20进行限位固定，避免燃烧器20出现晃动的问题，以及通过于排气支架30设置导流孔301，以用于将导流腔1012内的空气导流至燃烧腔1011内，该导流孔301导流的空气能够对燃烧火口201的燃烧进行二次空气的补充，利于燃气更加充分的燃烧，燃气燃烧的能量利用率更高，也降低了不完全燃烧而导致的氮氧化物等污染物的排放，节能环保；同时，于排气支架30上设置的导流孔301能够将导流腔1012内温度较低的空气导流至燃烧腔1011内，并在燃烧器20的燃烧火口201与燃烧室101的内壁之间形成一流动的空气层，该流动的空气层能够带走大量的热量，能够将燃烧火口201燃烧时产生较高的温度与燃烧室101的内壁之间相隔离，从而对燃烧室101的内壁具有隔热降温的作用，有效地降低燃烧室结构10工作时壳体10的温升，并能将燃气燃烧产生的热量充分应用于对水的加热，提高加热效率。
请结合参照图4和图5所示，排气支架30包括相对设置的第一支架31和第二支架32、及相对设置的第三支架33和第四支架34，第一支架31、第三支架33、第二支架32及第四支架34依次围合排布于燃烧器20的四周，第一支架31至第四支架34均开设有导流孔301。
本申请中通过设置第一支架31、第二支架32、第三支架33及第四支架34两两相对围合于燃烧器20四周，装配较为快速简便，通过在第一支架31至第四支架34上均开始有导流孔301，利于空气导流的分配更加合理、更加均匀，有助均匀提供二次空气的补充、促进燃气充分燃烧，形成环绕燃烧器20燃烧火口201的流动的空气层，对燃烧室101的内壁隔热降温效果更加显著有效。
请结合参照图4至图6所示，燃烧器20的相对两侧均延伸凸设有多个凸块21，第一支架31和第二支架32均开设有多个卡槽302，每一凸块21均插接于一卡槽302。
具体地，如图6所示，燃烧器20内并排设有多个燃烧器单片，燃烧器单片形成凸块21，为了将燃烧器单片进行限位固定，并进一步固定燃烧器20，通过相对设置的第一支架31和第二支架32上的卡槽302与凸块21卡接配合，且卡槽302的槽口方向均朝内，即，将每一燃烧器单片夹持固定于燃烧室101内，从而在前后左右方向上对燃烧器单片均进行限位固定的作用，避免燃烧器20在工作时出现晃动等问题，从而使得第一支架31和第二支架32同时具有导流空气、限位固定燃烧器单片的作用。
请结合参照图5、图6及图7所示 ，第一支架31包括与燃烧室101的内壁连接的第一连接部311和与该第一连接部311呈夹角连接的第一卡接部312，第一卡接部312位于燃烧室101的内壁和燃烧器20的外部之间，第一卡接部312开设有卡槽302；第一卡接部312开设有导流孔301，且/或，第一连接部312和第一卡接部312的连接处开设有导流孔301。
需要说明的，第一连接部311和燃烧室101的内壁两者中之一者还可设置限位凸起，另一者设置限位凹槽，通过限位凸起和限位凹槽的卡接配合，完成第一连接部311和燃烧室101的内壁之间的定位，而后可通过焊接等方式将第一支架31固定连接于燃烧室101的内壁。
本申请中第一卡接部312、第一连接部312和第一卡接部312的连接处两者中的其中之一开设有导流孔301，或者两者均开设有导流孔301，可根据具体应用进行设定。首先，通过在燃烧室101的内壁和燃烧器20的外部之间的第一卡接部312处设置导流孔301，以用于在燃烧器20的燃烧火口201与燃烧室101的内壁之间形成流动的空气层，既能对燃烧器20的燃烧进行二次空气的补充，又能够将燃烧火口201燃烧时产生较高的温度与燃烧室101的内壁之间相隔离，从而对燃烧室101的内壁具有隔热降温的作用。此外，由于两块邻接的板体之间易形成死角，且此处的气体流动性较差，为避免邻接处死角的产生，提高该处气体流动性能，起到更好的降温效果，通过在第一连接部312和第一卡接部312的连接处设置导流孔301，使得下方的空气能够快速冲此处的导流孔301向上排出，避免了邻接处气体的推积，并且能够达到更佳的隔热降温、减少壳体10工作时温升的效果。
请结合参照图5、图6及图8所示，第二支架32包括与燃烧室101的内壁连接的第二连接部321、和分别呈夹角连接于第二连接部321的相对两端的第二卡接部322和第三卡接部323，第二卡接部322和第三卡接部323由进风孔103至开口102的方向依次设置于燃烧室101的内壁和燃烧器20的外部之间，且第二卡接部322和第三卡接部323均开设有卡槽302；第三卡接部323开设有导流孔301，且/或，第二连接部321和第三卡接部323的连接处开设有导流孔301。
本申请中第三卡接部323、第二连接部321和第三卡接部323的连接处两者中的其中之一开设有导流孔301，或者两者均开设有导流孔301，可根据具体应用进行设定。首先，通过在燃烧室101的内壁和燃烧器20的外部之间的第二卡接部322处设置导流孔301，以用于在燃烧器20的燃烧火口201与燃烧室101的内壁之间形成流动的空气层，既能对燃烧器20的燃烧进行二次空气的补充，又能够将燃烧火口201燃烧时产生较高的温度与燃烧室101的内壁之间相隔离，从而对燃烧室101的内壁具有隔热降温的作用。此外，由于两块邻接的板体之间易形成死角，且此处的气体流动性较差，为避免邻接处死角的产生，提高该处气体流动性能，起到更好的降温效果，通过在第二连接部321和第三卡接部323的连接处设置导流孔301，使得下方的空气能够快速冲此处的导流孔301向上排出，避免了邻接处气体的推积，并且能够达到更佳的隔热降温、减少壳体10工作时温升的效果。
进一步地，第二卡接部322开设有第一导风过孔3221；且/或，第二连接部321和第二卡接部322的连接处开设有第二导风过孔3211。
本申请中，空气从壳体10的底部开设的进风孔103进入燃烧室101内，并从第一导风过孔3221、或者第二导风过孔3211进入第二卡接部322和第三卡接部323之间，并进一步经过第三卡接部323处的导流孔301、或者第二连接部321和第三卡接部323的连接处的导流孔301，进入燃烧腔1011中为燃烧器20的燃烧提供二次空气并隔热降温。即，如图5所示，在空气的流向上，第一导风过孔3221、第二导风过孔3211均在导流孔301之前，如图8所示，第一导风过孔3221的孔径大于第三卡接部323处开设的导流孔301的孔径、或者大于第二连接部321和第三卡接部323的连接处开设的导流孔301的孔径，从而更有利于空气快速通过导风过孔3221，提升进风量，而后才需通过导流孔301进行空气的分配调整、均匀排布。
进一步地，第二连接部321设有定位凸起3212，燃烧室101的内壁凹设有定位槽1013，定位凸起3212卡接于定位槽1013内。
本申请中通过于第二连接部321设置的定位凸起3212卡接于燃烧室101的内壁凹设的定位槽1013，在装配时能够将第二支架32快速简捷地定位于燃烧室101内，而后可通过焊接等方式将第二支架32固定于燃烧室101的内壁，即，设置的定位凸起3212和定位槽1013更有利于装配固定，提升了安装效率。
请结合参照图5、图6及图9所示，第三支架33包括与燃烧室101的内壁连接的第三连接部331和与第三连接部331呈夹角连接的第一导风部332，第一导风部332位于燃烧室101的内壁和燃烧器20的外部之间；第一导风部332开设有导流孔301，且/或，第三连接部331和第一导风部332的连接处开设有导流孔301。
需要说明的，第三连接部331和燃烧室101的内壁两者中之一者可设置限位凸起，另一者设置限位凹槽，通过限位凸起和限位凹槽的卡接配合，完成第三连接部331和燃烧室101的内壁之间的定位，而后可通过焊接等方式将第三支架33固定连接于燃烧室101的内壁。
本申请中第一导风部332、第三连接部331和第一导风部332的连接处两者中的其中之一开设有导流孔301，或者两者均开设有导流孔301，可根据具体应用进行设定。首先，通过在燃烧室101的内壁和燃烧器20的外部之间的第一导风部332处设置导流孔301，以用于在燃烧器20的燃烧火口201与燃烧室101的内壁之间形成流动的空气层，既能对燃烧器20的燃烧进行二次空气的补充，又能够将燃烧火口201燃烧时产生较高的温度与燃烧室101的内壁之间相隔离，从而对燃烧室101的内壁具有隔热降温的作用。此外，由于两块邻接的板体之间易形成死角，且此处的气体流动性较差，为避免邻接处死角的产生，提高该处气体流动性能，起到更好的降温效果，通过在第三连接部331和第一导风部332的连接处设置导流孔301，使得下方的空气能够快速冲此处的导流孔301向上排出，避免了邻接处气体的推积，并且能够达到更佳的隔热降温、减少壳体10工作时温升的效果。
请结合参照图5、图6及图9所示，第四支架34包括与燃烧室101的内壁连接的第四连接部341和与第四连接部341呈夹角连接的第二导风部342，第二导风部342位于燃烧室101的内壁和燃烧器20的外部之间；第二导风部342开设有导流孔301，且/或，第四连接部341和第二导风部342的连接处开设有导流孔301。
需要说明的，第四连接部341和燃烧室101的内壁两者中之一者可设置限位凸起，另一者设置限位凹槽，通过限位凸起和限位凹槽的卡接配合，完成第四连接部341和燃烧室101的内壁之间的定位，而后可通过焊接等方式将第四支架34固定连接于燃烧室101的内壁。
本申请中第二导风部342、第四连接部341和第二导风部342的连接处两者中的其中之一开设有导流孔301，或者两者均开设有导流孔301，可根据具体应用进行设定。首先，通过在燃烧室101的内壁和燃烧器20的外部之间的第二导风部342处设置导流孔301，以用于在燃烧器20的燃烧火口201与燃烧室101的内壁之间形成流动的空气层，既能对燃烧器20的燃烧进行二次空气的补充，又能够将燃烧火口201燃烧时产生较高的温度与燃烧室101的内壁之间相隔离，从而对燃烧室101的内壁具有隔热降温的作用。此外，由于两块邻接的板体之间易形成死角，且此处的气体流动性较差，为避免邻接处死角的产生，提高该处气体流动性能，起到更好的降温效果，通过在第四连接部341和第二导风部342的连接处设置导流孔301，使得下方的空气能够快速冲此处的导流孔301向上排出，避免了邻接处气体的推积，并且能够达到更佳的隔热降温、减少壳体10工作时温升的效果。
请结合参照图1、图2及图5所示，燃烧器20设有第一燃气进口202和第二燃气进口203，壳体10还开设有与燃烧室101连通的第一安装过孔104和第二安装过孔105，第一燃气进口202与第一安装过孔104连通，第二燃气进口203与第二安装过孔105连通。
本申请中第一燃气进口202和第二燃气进口203分别用于浓燃气和淡燃气的输入，并通过第一安装孔104和第二安装孔105方便于燃气管路的安装和通过。
请结合参照图1、图4及图6所示，壳体10包括相连接的第一外壳11和第二外壳12，第一外壳11包括相连接的第一侧部111和底部112，第二外壳12包括第二侧部121、由第二侧部121的相对两侧延伸形成的第三侧部122及第四侧部123，第三侧部122和第四侧部123连接于底部112，第一侧部111的两侧分别连接于第三侧部122和第四侧部123，底部112开设有进风孔103，底部112、第一侧部111至第四侧部123围合形成燃烧室101和开口102。
本申请中第一侧部111上还形成有阶梯状的台阶，如图1所示，第一侧部111上对应还开设有观火孔、用于点火的点火过孔等结构，第一侧部111上设有第一安装过孔104、第二安装过孔105等等，分别用于浓淡燃气输入燃烧器20内进行浓淡燃气的燃烧。
可选地，第一外壳11和第二外壳12分别设置为一体成型结构，以减少装配步骤，提升装配效率。如图6所示，第二外壳12的外形呈U型结构，在安装时仅需将第一外壳11的第一侧部111和底部112对应于第二外壳12的U型结构，插装定位、连接固定即可完成壳体10的装配，可减少壳体10的组合零件过多、装配程序较多而装配效率降低的问题。
请结合参照图1、图3及图6所示，第三侧部122与第四侧部123相对的表面凸设有第一承载部1221，第四侧部123与第三侧部122相对的表面凸设有第二承载部1231，底部112的两侧分别承载于第一承载部1221和第二承载部1231；
进一步地，第三侧部122与第四侧部123相对的表面凸设有第一限位部1222，第四侧部123与第三侧部122相对的表面凸设有第二限位部1232，第一侧部111的两侧分别连接于第一限位部1222和第二限位部1232。
本申请中通过第一承载部1221和第二承载部1231对底部112以及第一侧部111进行竖直方向上的重力承载受力，并且第一承载部1221和第二承载部1231上均开始有安装孔，并通过螺栓或螺丝等连接零件将第一承载部1221和第二承载部1231和底部112连接固定。通过设置第一限位部1222和第二限位部1232，在安装时，只需要将第一侧部111对应抵接第一限位部1222和第二限位部1232，并通过螺栓或螺丝等连接零件将第一限位部1222和第二限位部1232和第一侧部111的连接固定，从而，实现第一外壳11和第二外壳12之间的快速插装、连接固定。
本申请还提出一种燃气热水器，该燃气热水器包括风机40和燃烧室结构100，该燃烧室结构100的具体结构参照上述实施例，由于本燃气热水器采用了上述所有实施例的全部技术方案，因此至少具有上述实施例的技术方案所带来的所有有益效果，在此不再一一赘述。当然，风机40可采用多种类型的风机，譬如离心风机、贯流风机或轴流风机等等，只需要风机40能够抽动空气，将燃烧室101内的空气从开口102抽出，能够为强抽型燃烧室创造空气流动条件的目的即可，具体应用中可根据实际情形进行风机40种类的选定。
以上所述仅为本申请的可选实施例，并非因此限制本申请的专利范围，凡是在本申请的构思下，利用本申请说明书及附图内容所作的等效结构变换，或直接/间接运用在其他相关的技术领域均包括在本申请的专利保护范围内。

Claims (17)

  1. 一种燃烧室结构，应用于燃气热水器，该燃气热水器包括风机，其中，所述燃烧室结构包括：
    壳体，所述壳体内设有燃烧室、和与该燃烧室连通的开口和进风孔；
    燃烧器，所述燃烧器容置于燃烧室内，所述燃烧器设有燃烧火口；及
    排气支架，所述排气支架连接于所述燃烧器和所述燃烧室内壁之间，所述排气支架将所述燃烧室分隔为与所述开口连通的燃烧腔和与所述进风孔连通的导流腔，所述燃烧火口位于所述燃烧腔内，所述排气支架间隔开设有多个导流孔，所述导流孔连通所述燃烧腔和所述导流腔，且所述导流孔邻近于所述燃烧火口设置；
    所述风机邻近所述开口设置，所述风机抽动空气，以使空气从所述进风孔进入所述燃烧室后由所述开口排出。
  2. 如权利要求1所述的燃烧室结构，其中，所述排气支架包括相对设置的第一支架和第二支架、及相对设置的第三支架和第四支架，所述第一支架、第三支架、第二支架及第四支架依次围合排布于所述燃烧器的四周，第一支架至第四支架均开设有所述导流孔。
  3. 如权利要求2所述的燃烧室结构，其中，所述燃烧器的相对两侧均延伸凸设有多个凸块，所述第一支架和所述第二支架均开设有多个卡槽，每一凸块均插接于一卡槽。
  4. 如权利要求3所述的燃烧室结构，其中，所述燃烧器内并排设有多个燃烧器单片，所述燃烧器单片形成有所述凸块。
  5. 如权利要求3所述的燃烧室结构，其中，所述第一支架包括与所述燃烧室的内壁连接的第一连接部和与该第一连接部呈夹角连接的第一卡接部，所述第一卡接部位于所述燃烧室的内壁和所述燃烧器的外部之间，所述第一卡接部开设有所述卡槽；
    所述第一卡接部开设有所述导流孔，且/或，所述第一连接部和所述第一卡接部的连接处开设有所述导流孔。
  6. 如权利要求5所述的燃烧室结构，其中，所述第一连接部和燃烧室的内壁两者中之一者设置限位凸起，另一者设置限位凹槽，所述限位凸起和所述限位凹槽卡接配合。
  7. 如权利要求3所述的燃烧室结构，其中，所述第二支架包括与所述燃烧室的内壁连接的第二连接部、和分别呈夹角连接于所述第二连接部的相对两端的第二卡接部和第三卡接部，所述第二卡接部和所述第三卡接部由所述进风孔至所述开口的方向依次设置于所述燃烧室的内壁和所述燃烧器的外部之间，且所述第二卡接部和所述第三卡接部均开设有所述卡槽；
    所述第三卡接部开设有所述导流孔，且/或，所述第二连接部和所述第三卡接部的连接处开设有所述导流孔。
  8. 如权利要求7所述的燃烧室结构，其中，所述第二卡接部开设有第一导风过孔；且/或，所述第二连接部和所述第二卡接部的连接处开设有第二导风过孔。
  9. 如权利要求8所述的燃烧室结构，其中，所述第一导风过孔的孔径大于所述导流孔的孔径。
  10. 如权利要求7所述的燃烧室结构，其中，所述第二连接部设有定位凸起，所述燃烧室的内壁凹设有定位槽，所述定位凸起卡接于所述定位槽内。
  11. 如权利要求3所述的燃烧室结构，其中，所述第三支架包括与所述燃烧室的内壁连接的第三连接部和与所述第三连接部呈夹角连接的第一导风部，所述第一导风部位于所述燃烧室的内壁和所述燃烧器的外部之间；
    所述第一导风部开设有所述导流孔，且/或，所述第三连接部和所述第一导风部的连接处开设有所述导流孔。
  12. 如权利要求1所述的燃烧室结构，其中，所述燃烧器设有第一燃气进口和第二燃气进口，所述壳体还开设有与所述燃烧室连通的第一安装过孔和第二安装过孔，所述第一燃气进口与所述第一安装过孔连通，所述第二燃气进口与所述第二安装过孔连通。
  13. 如权利要求1至12中任一项所述的燃烧室结构，其中，所述壳体包括相连接的第一外壳和第二外壳，所述第一外壳包括相连接的第一侧部和底部，所述第二外壳包括第二侧部、由所述第二侧部的相对两侧延伸形成的第三侧部及第四侧部，所述第三侧部和第四侧部连接于所述底部，所述第一侧部的两侧分别连接于所述第三侧部和第四侧部，所述底部开设有所述进风孔，所述底部、所述第一侧部至第四侧部围合形成所述燃烧室和所述开口。
  14. 如权利要求13所述的燃烧室结构，其中，所述第一侧部还开设有观火孔和点火过孔。
  15. 如权利要求13所述的燃烧室结构，其中，所述第一外壳和所述第二外壳为一体结构。
  16. 如权利要求13所述的燃烧室结构，其中，所述第三侧部与所述第四侧部相对的表面凸设有第一承载部，所述第四侧部与所述第三侧部相对的表面凸设有第二承载部，所述底部的两侧分别承载于所述第一承载部和第二承载部；且/或，
    所述第三侧部与所述第四侧部相对的表面凸设有第一限位部，所述第四侧部与所述第三侧部相对的表面凸设有第二限位部，所述第一侧部的两侧分别连接于所述第一限位部和第二限位部。
  17. 一种燃气热水器，其中，包括风机和如权利要求1至16中任一项所述的燃烧室结构。
PCT/CN2019/072408 2018-02-10 2019-01-18 燃烧室结构和燃气热水器 WO2019154045A1 (zh)

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