CN110230824B - Flame detection structure, burner and gas water heater - Google Patents
Flame detection structure, burner and gas water heater Download PDFInfo
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- CN110230824B CN110230824B CN201910489055.6A CN201910489055A CN110230824B CN 110230824 B CN110230824 B CN 110230824B CN 201910489055 A CN201910489055 A CN 201910489055A CN 110230824 B CN110230824 B CN 110230824B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23M—CASINGS, LININGS, WALLS OR DOORS SPECIALLY ADAPTED FOR COMBUSTION CHAMBERS, e.g. FIREBRIDGES; DEVICES FOR DEFLECTING AIR, FLAMES OR COMBUSTION PRODUCTS IN COMBUSTION CHAMBERS; SAFETY ARRANGEMENTS SPECIALLY ADAPTED FOR COMBUSTION APPARATUS; DETAILS OF COMBUSTION CHAMBERS, NOT OTHERWISE PROVIDED FOR
- F23M11/00—Safety arrangements
- F23M11/04—Means for supervising combustion, e.g. windows
- F23M11/045—Means for supervising combustion, e.g. windows by observing the flame
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- 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
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- 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
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
- F24H9/2035—Arrangement or mounting of control or safety devices for water heaters using fluid fuel
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Control Of Combustion (AREA)
Abstract
本发明公开了一种火焰检测结构、燃烧器及燃气热水器，反馈针位于燃烧器本体的火孔上方，以便反馈针能够检测到火孔处的火焰信息状况，并将检测的火焰信息及时反馈至控制器中。由于反馈针上设有检测段，且检测段沿着靠拢或者远离火孔方向的延伸设置，因此，该检测段能够检测到火孔的上方不同高度的火焰信息，使得检测段具有同时检测熄火、回火、离焰及火焰外溢现象的功能，从而使得检测段能够应对燃烧器不同的燃烧工况，并及时、准确反馈火焰信息，以便燃烧器采取针对性的保护措施，如此，使得燃烧器工作时火焰时刻保持正常的区间范围内，从而有利于保证燃气热水器使用安全。
The present invention discloses a flame detection structure, a burner and a gas water heater, wherein a feedback needle is located above a fire hole of a burner body, so that the feedback needle can detect the flame information status at the fire hole, and timely feed back the detected flame information to a controller. Since a detection section is provided on the feedback needle, and the detection section is extended along a direction close to or away from the fire hole, the detection section can detect flame information at different heights above the fire hole, so that the detection section has the function of simultaneously detecting flameout, flashback, flame separation and flame overflow, so that the detection section can cope with different combustion conditions of the burner, and timely and accurately feed back flame information, so that the burner can take targeted protection measures, so that the flame is always kept within a normal range when the burner is working, which is conducive to ensuring the safe use of the gas water heater.
Description
Technical Field
The invention relates to the technical field of gas water heaters, in particular to a flame detection structure, a burner and a gas water heater.
Background
When flameout, backfire and flame overflow occur, the gas water heater usually closes the gas passage of the burner. Traditional gas water heater adopts single style feedback needle, detects the combustion condition of single combustor. However, when the gas water heater is in flame overflow or flame separation, the traditional feedback needle cannot accurately detect a combustion signal or the detected combustion signal is weaker, so that flame information cannot be timely and accurately fed back, and the flame overflow of the gas water heater cannot be effectively solved or the misinformation technical fault of the gas water heater is caused, so that the normal use of the gas water heater is seriously influenced.
Disclosure of Invention
The first technical problem to be solved by the invention is to provide a flame detection structure which can accurately detect a combustion signal and timely feed back flame information, so that the normal use of the gas water heater is effectively ensured.
The second technical problem to be solved by the invention is to provide the burner which can accurately detect the combustion signal and timely feed back flame information, thereby effectively ensuring the normal use of the gas water heater.
The third technical problem to be solved by the invention is to provide the gas water heater, which can accurately detect the combustion signal and timely feed back flame information, thereby effectively ensuring the normal use of the gas water heater.
The first technical problem is solved by the following technical scheme:
A flame detection structure comprising: a mounting for mounting on a combustion chamber; and the feedback needle is arranged on the mounting piece and is used for being positioned above the fire hole of the burner body, one end of the feedback needle is used for being electrically connected with the controller, the other end of the feedback needle is provided with a detection section, and the detection section is used for extending along the direction close to or far away from the fire hole.
Compared with the background technology, the flame detection structure has the beneficial effects that: the feedback needle is located the flame hole top of combustor body to the feedback needle can detect the flame information situation of flame hole department, and in time feeds back the flame information that detects to the controller. Because be equipped with the detection section on the feedback needle, and the detection section is along closing up or keeping away from the extension setting of fire hole direction, consequently, the flame information of the top different co-altitude of fire hole can be detected to this detection section for the detection section has the function of simultaneously detecting flameout, tempering, from flame and flame excessive phenomenon, thereby makes the detection section can deal with the different combustion conditions of combustor, and in time, accurate feedback flame information, so that the combustor takes targeted safeguard measure, so, the flame constantly keeps normal interval within range when making the combustor during operation, thereby be favorable to guaranteeing gas heater safety in utilization.
In one embodiment, the mounting member is provided with a first through hole, the feedback needle penetrates into the first through hole and extends out of the first through hole, and a portion of the feedback needle extending out of the first through hole is used for being electrically connected with the controller. Thus, the feedback needle is stably arranged on the mounting piece through the first perforation.
In one embodiment, the flame detection structure further comprises an ignition needle and a grounding needle, the ignition needle, the grounding needle and the feedback needle are arranged on the mounting piece at intervals, the ignition needle and the grounding needle are both used for being located above the fire hole, and the ignition needle and the grounding needle are both used for being electrically connected with the igniter. Therefore, the ignition needle, the grounding needle and the feedback needle are integrated into a whole, so that the flame detection structure is greatly convenient to use and install.
In one embodiment, the detection section is arranged obliquely along the direction approaching or moving away from the ignition needle. Therefore, the contact area of the detection section and the flame is increased, so that the detection section can acquire flame information more effectively and accurately.
In one embodiment, the mounting member is provided with a second through hole and a third through hole at intervals, and the ignition needle penetrates into the second through hole and is used for being electrically connected with the igniter; the grounding pin penetrates into the third through hole and is used for being electrically connected with the igniter.
In one embodiment, the flame detection structure further comprises a connector through which the mount is for mounting on the combustion chamber.
In one embodiment, the connecting piece is provided with a pressing sleeve, the connecting piece and the pressing sleeve are provided with a first mounting hole in a penetrating mode, the mounting piece is provided with a first limiting clamping piece and a protrusion, the mounting piece penetrates into the first mounting hole, and the pressing sleeve is sleeved on the protrusion, and the first limiting clamping piece is in limiting fit with the pressing sleeve.
The second technical problem is solved by the following technical scheme:
The burner comprises a burner body, a combustion chamber and the flame detection structure, wherein the burner body is arranged in the combustion chamber, the mounting piece is arranged on the combustion chamber, and the feedback needle is positioned above a fire hole of the burner body.
Compared with the background technology, the burner provided by the invention has the beneficial effects that: the feedback needle is located the flame hole top of combustor body to the feedback needle can detect the flame information situation of flame hole department, and in time feeds back the flame information that detects to the controller. Because be equipped with the detection section on the feedback needle, and the detection section is along closing up or keeping away from the extension setting of fire hole direction, consequently, the flame information of the top different co-altitude of fire hole can be detected to this detection section for the detection section has the function of simultaneously detecting flameout, tempering, from flame and flame excessive phenomenon, thereby makes the detection section can deal with the different combustion conditions of combustor, and in time, accurate feedback flame information, so that the combustor takes targeted safeguard measure, so, the flame constantly keeps normal interval within range when making the combustor during operation, thereby be favorable to guaranteeing gas heater safety in utilization.
In one embodiment, the length L 0 of the mounting member extending outside the combustion chamber is greater than or equal to 20mm. Therefore, the lead and the ignition needle keep a safe creepage distance, and the phenomenon that the ignition needle is in disorder ignition due to the fact that the ignition needle is electrically polarized by the lead is avoided, and the normal use of the gas water heater is affected.
In one embodiment, the combustion chamber comprises a first side plate, a second mounting hole and a first vent hole are formed in the first side plate, the mounting piece is arranged at the second mounting hole, and the first vent hole and the air inlet hole of the burner body are correspondingly arranged.
In one embodiment, the first side plate includes a first side portion, a second side portion and a connection portion disposed between the first side portion and the second side portion, the second side portion is disposed away from the burner body with respect to the first side portion, a second ventilation hole is disposed on the connection portion, the second mounting hole is disposed on the second side portion, and the first ventilation hole is disposed on the first side portion. The volume of the upper space of the combustion chamber is increased, so that additional air enters the combustion chamber from the second ventilation holes on the connecting part, and the air consumption of the burner body is increased.
The third technical problem is solved by the following technical scheme:
a gas water heater comprising a burner as claimed in any one of the preceding claims.
Compared with the background technology, the gas water heater has the beneficial effects that: by adopting the burner, the feedback needle is positioned above the fire hole of the burner body, so that the feedback needle can detect the flame information condition of the fire hole and timely feed back the detected flame information to the controller. Because be equipped with the detection section on the feedback needle, and the detection section is along closing up or keeping away from the extension setting of fire hole direction, consequently, the flame information of the top different co-altitude of fire hole can be detected to this detection section for the detection section has the function of simultaneously detecting flameout, tempering, from flame and flame excessive phenomenon, thereby makes the detection section can deal with the different combustion conditions of combustor, and in time, accurate feedback flame information, so that the combustor takes targeted safeguard measure, so, the flame constantly keeps normal interval within range when making the combustor during operation, thereby be favorable to guaranteeing gas heater safety in utilization.
Drawings
FIG. 1 is a schematic diagram of a flame detection structure according to an embodiment of the invention;
FIG. 2 is a schematic diagram of an assembled flame detection structure according to an embodiment of the invention;
FIG. 3 is a schematic view illustrating a burner structure according to an embodiment of the present invention;
FIG. 4 is a right side view of a burner configuration according to an embodiment of the present invention;
FIG. 5 is a front view of a burner configuration according to an embodiment of the present invention;
FIG. 6 is a rear view of a burner configuration according to an embodiment of the present invention;
FIG. 7 is a top view of a burner configuration according to an embodiment of the present invention;
FIG. 8 is a schematic diagram of an internal structure of a gas water heater according to an embodiment of the invention.
Reference numerals illustrate:
100. The flame detection structure, 110, the mounting member, 111, the first limiting clip, 112, the protrusion, 113, the first perforation, 114, the second perforation, 115, the third perforation, 120, the feedback needle, 121, the detection section, 130, the ignition needle, 140, the grounding needle, 150, the connecting member, 151, the press jacket, 152, the insulating pad, 153, the first mounting hole, 160, the wire, 170, the connector, 200, the burner body, 210, the fire hole, 220, the hem, 230, the air inlet hole, 240, the positioning member, 300, the combustion chamber, 310, the first side plate, 311, the first side part, 3111, the first ventilation hole, 312, the connecting part, 3121, the second ventilation hole, 3122, the first clamping groove, 313, the second side part, 3131, the second mounting hole, 320, the second side plate, 330, the third side plate, 331, the third clamping groove, 340, the fourth side plate, 350, the second limiting clip, 400, the first air baffle, 410, the third ventilation hole, 500, the fixing member, 510, the second clamping groove, 600, the second side plate, the heat exchange plate, 610, the heat exchange plate, the main fan, the heat exchange plate, the main fan, the heat exchange plate, and the fan, the heat.
Detailed Description
In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.
In the description of the present invention, it will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly connected" to another element, there are no intervening elements present.
In one embodiment, referring to fig. 1 and 3, a flame detection structure 100 includes: a mount 110 and a feedback needle 120. The mount 110 is for mounting on the combustion chamber 300. The feedback needle 120 is mounted on the mounting member 110, the feedback needle 120 is disposed above the fire hole 210 of the burner body 200, one end of the feedback needle 120 is electrically connected to the controller, and a detection section 121 is disposed at the other end of the feedback needle 120. The detecting section 121 is configured to extend in a direction toward or away from the fire hole 210.
In the flame detection structure 100, the feedback needle 120 is located above the flame hole 210 of the burner body 200, so that the feedback needle 120 can detect the flame information condition at the flame hole 210 and timely feed back the detected flame information to the controller. Because the feedback needle 120 is provided with the detection section 121, and the detection section 121 is arranged along the extension of the direction close to or far away from the fire hole 210, the detection section 121 can detect flame information of different heights above the fire hole 210, so that the detection section 121 has the function of simultaneously detecting flameout, tempering, flame separation and flame overflow phenomena, the detection section 121 can cope with different combustion conditions of the burner, timely and accurately feed back the flame information, and the false flame information is avoided to the controller, so that the burner adopts targeted protection measures, and the flame moment is kept in a normal interval range during the operation of the burner, thereby being beneficial to ensuring the use safety of the gas water heater. Meanwhile, the feedback needle 120 of the present embodiment is mounted on the combustion chamber 300 through the mounting member 110, thus facilitating the mounting operation of the feedback needle 120; meanwhile, the stability of the feedback needle 120 on the combustion chamber 300 is also improved, and the feedback needle 120 is prevented from being easily interfered by external factors to vibrate, so that the feedback needle 120 is prevented from being incapable of accurately detecting flame information above the fire hole 210. It should be noted that, the feedback needle 120 and the detection section 121 both obtain flame information by detecting flame ion current signals. Meanwhile, the feedback needle 120 is located above the fire hole 210 of the burner body 200, which means that the combustion portion of the burner body 200 faces upward and the air inlet portion of the burner body 200 faces downward during normal use of the burner body 200, and the feedback needle 120 is located above the combustion portion, and the specific structure can refer to fig. 3.
Specifically, the detecting section 121 and the feedback needle 120 are integrally formed, and the detecting section 121 is formed by bending one end of the feedback needle 120 along the direction of approaching the fire hole 210 or the direction away from the fire hole 210. Thus, the detection accuracy of the detection section 121 is advantageously improved; at the same time, it is advantageous to facilitate the manufacture of the feedback needle 120.
Further, referring to fig. 1 and 3, the mounting member 110 is provided with a first through hole 113. The feedback needle 120 penetrates into the first perforation 113 and protrudes out of the first perforation 113. The portion of the feedback pin 120 extending out of the first through hole 113 is used for electrically connecting with a controller. Thus, the feedback needle 120 is stably mounted on the mounting member 110 through the first through hole 113. At the same time, the feedback needle 120 is inserted into the first through hole 113, which is also beneficial to protect the feedback needle 120 and prevent the feedback needle 120 from being damaged by external factors. Specifically, in this embodiment, the end of the feedback pin 120 extending out of the first through hole 113 is pressed or approximately disc-shaped for electrically connecting to the controller. Meanwhile, the distance between the feedback needle 120 and the top of the burner body 200 in this embodiment is 6 mm-12 mm.
In one embodiment, referring to fig. 1, 2 and 3, the flame detection structure 100 further includes an ignition needle 130 and a grounding needle 140. The ignition needle 130, the grounding needle 140 and the feedback needle 120 are installed on the mounting member 110 at intervals, the ignition needle 130 and the grounding needle 140 are both disposed above the fire hole 210, and the ignition needle 130 and the grounding needle 140 are both electrically connected to the igniter. Therefore, the ignition needle 130 and the grounding needle 140 are both located above the fire hole 210, and the ignition needle 130 can ignite the burner body 200 through the igniter, so that the gas water heater can be started normally. Meanwhile, the ignition needle 130, the grounding needle 140 and the feedback needle 120 are integrated into a whole through the mounting member 110, which greatly facilitates the use and installation of the flame detection structure 100. It should be noted that, the ignition needle 130 and the grounding needle 140 are both located above the fire hole 210, which is to be understood that, in the normal use process of the burner body 200, the combustion portion of the burner body 200 faces upward, and the air inlet portion of the burner body 200 faces downward, and at this time, the ignition needle 130 and the grounding needle 140 are both located above the combustion portion, and the specific structure can refer to fig. 3. In this embodiment, the distance between the ignition needle 130 and the top of the burner body 200 is 6 mm-11 mm; the distance between the grounding pin 140 and the top of the burner body 200 is 6 mm-11 mm; meanwhile, the positions of the ignition needle 130 and the grounding needle 140 in the embodiment can be installed in a reversed manner, and the distance L 1 between the ignition needle 130 and the grounding needle 140 is 5 mm-12 mm.
Further, referring to fig. 1 and 2, the detecting section 121 is disposed obliquely along a direction approaching or separating from the ignition needle 130. As can be seen from this, the detection section 121 of the present embodiment is inclined in the left-right direction of the burner, in addition to being bent in the up-down direction of the burner. In this way, when the detecting section 121 is deviated along the left-right direction of the burner, the contact surface area between the detecting section 121 and the flame can be increased, so that the detecting section 121 can obtain the flame information more effectively and accurately; meanwhile, when the detecting section 121 is deviated along the left-right direction of the burner, the detecting section 121 can also detect flame information on a plurality of burner bodies 200 at the same time, so that the phenomenon of false alarm caused by weak acquired flame information is avoided.
In one embodiment, referring to fig. 1, the mounting member 110 is provided with a second through hole 114 and a third through hole 115 at intervals. The ignition needle 130 penetrates into the second through hole 114 and is used for being electrically connected with the igniter. The grounding pin 140 penetrates into the third through hole 115 and is used for being electrically connected with the igniter. In this way, the first through hole 113 and the third through hole 115 make the installation of the ignition needle 130 and the node needle more stable, which is beneficial to the stable start of the burner body 200. In this embodiment, one end of the ignition needle 130 and one end of the grounding needle 140 are connected with a connector 170 through a wire 160, and the ignition needle 130 and the grounding needle 140 are conveniently connected with an igniter through the connector 170. Meanwhile, the ignition pin 130 and the grounding pin 140 of the present embodiment are both of an insulator structure, and the mounting member 110 is an insulating ceramic member.
In one embodiment, referring to fig. 1 and 3, the flame detection structure 100 further includes a connector 150. The mounting member 110 is adapted to be mounted to the combustion chamber 300 via the connection member 150. In this manner, the mounting member 110 is stably mounted on the combustion chamber 300 by the connection member 150, thereby facilitating more stable operation of the feedback needle 120. In particular, in the present embodiment, the insulating pad 152 is provided on the connection member 150, so that when the connection member 150 is connected to the combustion chamber 300, the insulating effect of the connection member 150 is improved by the insulating pad 152. At the same time, it is also advantageous to improve the sealing between the connection 150 and the combustion chamber 300.
Further, referring to fig. 1 and 2, the connecting member 150 is provided with a pressing sleeve 151. The connecting piece 150 and the pressing sleeve 151 are provided with a first mounting hole 153 in a penetrating manner. The mounting piece 110 is provided with a first limiting clamping piece 111 and a bulge 112, the mounting piece 110 penetrates into the first mounting hole 153, and when the pressing sleeve 151 is sleeved on the bulge 112, the first limiting clamping piece 111 is in limiting fit with the pressing sleeve 151. As can be seen, during the assembly of the flame detection structure 100, the mounting member 110 is inserted into the first mounting hole 153, such that the press sleeve 151 is sleeved on the protrusion 112; the pressing sleeve 151 is stably clamped on the mounting member 110 by the first limiting clamping member 111, so that the connecting member 150 is tightly connected with the mounting member 110, and the connecting member 150 is prevented from sliding off the mounting member 110. In this embodiment, the connecting member 150 and the pressing sleeve 151 are integrally formed, and the pressing sleeve 151 is a sleeve structure formed by inwardly recessing the side surface of the connecting member 150.
In one embodiment, referring to fig. 1 and 3, a burner includes a burner body 200, a combustion chamber 300, and a flame detection structure 100 according to any of the above embodiments. The burner body 200 is installed in the combustion chamber 300. The mount 110 is mounted on the combustion chamber 300, and the feedback pin 120 is located above the fire hole 210 of the burner body 200.
In the above burner, the feedback needle 120 is located above the fire hole 210 of the burner body 200, so that the feedback needle 120 can detect the flame information condition at the fire hole 210 and timely feed back the detected flame information to the controller. Because the feedback needle 120 is provided with the detection section 121, and the detection section 121 is arranged along the extension of the direction close to or far away from the fire hole 210, the detection section 121 can detect flame information of different heights above the fire hole 210, so that the detection section 121 has the functions of simultaneously detecting flameout, tempering, flame separation and flame overflow phenomena, the detection section 121 can cope with different combustion conditions of the burner, timely and accurately feed back the flame information, so that the burner can take targeted protection measures, and the flame moment is kept in a normal interval range during the operation of the burner, thereby being beneficial to ensuring the use safety of the gas water heater. It should be noted that, the feedback needle 120 is located above the fire hole 210 of the burner body 200, which is understood to mean that the combustion portion of the burner body 200 faces upward and the air inlet portion of the burner body 200 faces downward during normal use of the burner body 200, and at this time, the feedback needle 120 is located above the combustion portion, and the specific structure can refer to fig. 3.
Further, referring to fig. 1, 3 and 4, the length L 0 of the mounting member 110 extending out of the combustion chamber 300 is greater than or equal to 20mm. Therefore, the proper distance is provided between the wire 160 on the mounting member 110 and the ignition needle 130, so that the wire 160 and the ignition needle 130 maintain a safe creepage distance, and the ignition needle 130 is prevented from being electrically polarized by the wire 160 to cause the ignition needle 130 to generate a disordered ignition phenomenon, which affects the normal use of the gas water heater. Thus, the length L 0 of the mounting member 110 extending out of the combustion chamber 300 is greater than or equal to 20mm in this embodiment, so that the operation of the burner is safer and more stable. The mounting member 110 is an insulating member, and in this embodiment, the mounting member 110 is an insulating ceramic member.
In one embodiment, referring to FIG. 3, the combustion chamber 300 includes a first side plate 310. The first side plate 310 is provided with a second mounting hole 3131 and a first vent 3111. The mount 110 is mounted at the second mounting hole 3131. The first ventilation hole 3111 is provided corresponding to the air inlet 230 of the burner body 200. Thus, the mounting member 110 is inserted into the second mounting hole 3131, and the mounting operation of the flame detecting structure 100 is completed. Meanwhile, air is stably supplied to the burner body 200 through the first ventilation hole 3111.
Further, referring to fig. 3,4 and 5, the first side plate 310 includes a first side portion 311, a second side portion 313 and a connecting portion 312 disposed between the first side portion 311 and the second side portion 313. The second side 313 is disposed away from the burner body 200 opposite the first side 311. The connection portion 312 is provided with a second ventilation hole 3121. The second mounting hole 3131 is provided on the second side portion 313. The first vent 3111 is provided on the first side 311. Therefore, the first side plate 310 is in or approximately in a "step" structure, and the second side portion 313 is further away from the burner relative to the first side portion 311, so that the volume of the upper space of the combustion chamber 300 is advantageously increased, and additional air enters the combustion chamber 300 from the second ventilation holes 3121 on the connection portion 312, so as to increase the air consumption of the burner body 200, and facilitate more stable operation of the gas water heater. Wherein, the distance L 2 between the center of the first ventilation hole 3111 and the connection portion 312 is greater than or equal to 20mm. In this embodiment in particular, this is such that the burner is stably supported on the connection portion 312. Meanwhile, the first side portion 311, the second side portion 313 and the connecting portion 312 are integrally formed, and the first side plate 310 is bent in a direction away from the burner body 200; after bending, one end of the bent first side plate 310 is vertically bent, so that a first side portion 311, a connecting portion 312 and a second side portion 313 which are sequentially connected are formed.
Further, referring to fig. 3 and 7, the burner body 200 is provided with a flange 220, and when the burner body 200 is installed in the combustion chamber 300, the flange 220 is in interference fit with the connecting portion 312. In this embodiment, the connecting portion 312 is provided with a first slot 3122, and the flange 220 is snapped into the first slot 3122. Thus, the burner body 200 is effectively prevented from shaking in the combustion chamber 300, so that the burner body 200 can operate more reliably. Meanwhile, the fixing fittings of the burner body 200 are reduced by the cooperation of the folded edge 220 and the first clamping groove 3122, so that the burner is convenient to install.
In one embodiment, referring to fig. 3 and 5, the burner further includes a first air baffle 400, a third ventilation hole 410 opposite to the first ventilation hole 3111 is provided on the first air baffle 400, and the first air baffle 400 is mounted on the first side plate 310. In this way, through the third ventilation holes 410 on the first air baffle 400, the air consumption of the burner body 200 can be effectively adjusted, and the combustion condition is ensured to be the optimal condition; at the same time, air is also facilitated to enter the combustion chamber 300 uniformly. In addition, flame overflow is also effectively prevented by the first air baffle 400. The first air baffle 400 is mounted on the first side plate 310 by a bolt connection manner or a welding manner; meanwhile, the shape of the third ventilation holes 410 may be a circular, oval, triangular, square, irregular shaped holes, or other shapes. In particular, in the present embodiment, when the third ventilation hole 410 is a circular hole, the aperture of the third ventilation hole 410 is 1mm to 10mm.
In one embodiment, referring to fig. 3 and 7, the combustor further includes a second air baffle 600. The second air baffle 600 is installed at the bottom of the combustion chamber 300, and a fourth air vent 610 is provided on the second air baffle 600. The fourth ventilation hole 610 may be a circular, oval, triangular, square, irregular, or other shape. In particular, in the present embodiment, when the fourth ventilation hole 610 is a circular hole, the aperture of the fourth ventilation hole 610 is 1 mm-10 mm, so that designing the fourth ventilation hole 610 as a small hole is beneficial to effectively solving the flame overflow problem.
In one embodiment, referring to fig. 3 and 6, the burner further includes a fixing member 500, and the burner body 200 is installed in the combustion chamber 300 through the fixing member 500. Thus, the burner body 200 is stabilized in the combustion chamber 300, and unstable operation of the gas water heater caused by shaking of the burner body 200 in the working process is avoided.
Further, the fixing member 500 is provided with a positioning protrusion 112 and a second clamping groove 510, and the combustion chamber 300 is provided with a positioning hole matched with the positioning protrusion 112 and a third clamping groove 331 opposite to the second clamping groove 510. The burner body 200 is provided with a positioning member 240, and the positioning member 240 can be inserted into the second clamping groove 510 and the third clamping groove 331. It can be seen that positioning protrusion 112 is positioned in the positioning hole, so that fixing member 500 is stabilized on combustion chamber 300; the positioning member 240 is inserted into the second clamping groove 510 and the third clamping groove 331, so that the burner body 200 is stably clamped on the combustion chamber 300.
In one embodiment, the combustor further includes a thermal shield 700, the thermal shield 700 being disposed between the combustor body 200 and the combustion chamber 300. Thus, the heat insulator 700 prevents heat from being directly transferred to the combustion chamber 300 to burn the user. In particular, in the present embodiment, the heat insulation member 700 is provided with the second limiting clamping member 350, and the combustion chamber 300 is provided with the third limiting clamping member 710 matched with the second limiting clamping member 350, so that the heat insulation member 700 is stably installed on the combustion chamber 300 through the matching of the second limiting clamping member 350 and the third limiting clamping member 710. Meanwhile, the second limiting clip 350 is a sheet structure, and the third limiting clip 710 is or is approximately an "L" shaped sheet structure.
In one embodiment, the combustion chamber 300 further includes a second side plate 320, a third side plate 330, and a fourth side plate 340, and the first side plate 310, the second side plate 320, the third side plate 330, and the fourth side plate 340 are sequentially connected. As such, the combustion chamber 300 of the present embodiment has a square or nearly square structure.
In one embodiment, referring to fig. 1, 3 and 8, a gas water heater includes a burner according to any of the above embodiments.
The above gas water heater adopts the above burner, and the feedback needle 120 is located above the fire hole 210 of the burner body 200, so that the feedback needle 120 can detect the flame information condition at the fire hole 210, and timely feed back the detected flame information to the controller. Because the feedback needle 120 is provided with the detection section 121, and the detection section 121 is arranged along the extension of the direction close to or far away from the fire hole 210, the detection section 121 can detect flame information of different heights above the fire hole 210, so that the detection section 121 has the functions of simultaneously detecting flameout, tempering, flame separation and flame overflow phenomena, the detection section 121 can cope with different combustion conditions of the burner, timely and accurately feed back the flame information, so that the burner can take targeted protection measures, and the flame moment is kept in a normal interval range during the operation of the burner, thereby being beneficial to ensuring the use safety of the gas water heater.
Further, the gas water heater further comprises a fan 800, a heat exchanger 810, a heat exchange pipe 820, a motor 830 and a main control board 840, wherein the motor 830 is controlled to be started by the main control board 840, air is sucked into the gas water heater, and the air enters the burner for combustion and heat supply; the water in the heat exchange pipe 820 is heat-exchanged through the heat exchanger 810 so that the water temperature reaches a predetermined temperature; finally, the gas fume is discharged out of the gas water heater through the fan 800.
The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.
The above examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention. Accordingly, the scope of protection of the present invention is to be determined by the appended claims.
Claims (8)
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| CN201910489055.6A CN110230824B (en) | 2019-06-06 | 2019-06-06 | Flame detection structure, burner and gas water heater |
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| CN110230824B true CN110230824B (en) | 2024-11-12 |
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| CN103953947B (en) * | 2014-04-28 | 2015-11-25 | 北京七星华创电子股份有限公司 | The detent mechanism of horizontal outer ignition device |
| CN207622060U (en) * | 2017-12-22 | 2018-07-17 | 福建华电可门发电有限公司 | A kind of power plant's fire inspection detecting system |
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| JP2000283462A (en) * | 1999-03-31 | 2000-10-13 | Rinnai Corp | Combustion device |
| JP2015042923A (en) * | 2013-08-26 | 2015-03-05 | リンナイ株式会社 | Combustion apparatus |
| CN208487808U (en) * | 2018-05-15 | 2019-02-12 | 芜湖美的厨卫电器制造有限公司 | For the sparking component of gas heater and with its gas heater |
| CN210373529U (en) * | 2019-06-06 | 2020-04-21 | 广东万和新电气股份有限公司 | Flame detection structure, combustor and gas heater |
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