CN114963231A - Ignition device and combustor using same - Google Patents
Ignition device and combustor using same Download PDFInfo
- Publication number
- CN114963231A CN114963231A CN202111019593.2A CN202111019593A CN114963231A CN 114963231 A CN114963231 A CN 114963231A CN 202111019593 A CN202111019593 A CN 202111019593A CN 114963231 A CN114963231 A CN 114963231A
- Authority
- CN
- China
- Prior art keywords
- ignition
- needle
- cable
- functional
- ignition device
- Prior art date
- Legal status (The legal status 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 status listed.)
- Pending
Links
- 238000001514 detection method Methods 0.000 claims abstract description 61
- 229910052573 porcelain Inorganic materials 0.000 claims description 11
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 238000010304 firing Methods 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 238000010276 construction Methods 0.000 claims 1
- 230000035945 sensitivity Effects 0.000 abstract description 18
- 238000010892 electric spark Methods 0.000 abstract description 15
- 238000005452 bending Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 25
- 230000001681 protective effect Effects 0.000 description 6
- 239000002184 metal Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 230000035515 penetration Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010411 cooking Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 239000004809 Teflon Substances 0.000 description 1
- 229920006362 Teflon® Polymers 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000011162 core material Substances 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/006—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q23/00—Testing of ignition installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/008—Structurally associated with fluid-fuel burners
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Combustion (AREA)
Abstract
The invention discloses an ignition device and a burner using the same, wherein the ignition device is used for igniting a fire grate and comprises a bracket, an ignition needle, a functional grounding terminal, a detection needle and a cable, wherein the ignition needle, the functional grounding terminal, the detection needle and the cable are arranged on the bracket, and a discharge space formed by the ignition needle and the functional grounding terminal is positioned above at least one flame hole of the fire grate and is inclined relative to the surface of the fire grate. So arrange the discharge interval of ignition needle and function ground terminal, can make the electric spark can and the relatively easy perforation fire arrange flame vent spun gas, improve the success rate of igniteing, in addition, the design that detects needle bending segment and spanes two at least fire rows can improve the sensitivity and the rate of accuracy that detects needle detection flame, and the rationalization of other components of ignition is arranged and is used, can further optimize aforementioned effect.
Description
Technical Field
The invention belongs to the technical field of combustors, and particularly relates to an ignition device and a combustor using the same.
Background
Atmospheric gas heating stove ignition reliability is not enough, and the sensitivity and the accuracy that the success rate of igniteing is low and detect needle detection flame are poor, cause the low factor of success rate of igniteing to probably be: ignition energy is insufficient due to unreasonable arrangement of main functional components such as an ignition needle and the like, cables of the main functional components such as the ignition needle and the like are broken, a ceramic body is broken, and the ignition needle deviates from an original ignition position due to rotation of an ignition electrode and the like; the existing detection needle design has the defects that when the flame transfer speed is low due to low gas pressure or low gas heat value, the accuracy rate and the sensitivity of the detection needle for detecting flame are low, so that the ignition failure problem of the ignition needle which generates the indiscriminate discharge due to the fact that the flame cannot be detected is increased, and the problems that the ignition success rate is low, the sensitivity and the accuracy of the detection needle are poor in the existing ignition device cause the situation that a user cannot normally use the ignition device, so that complaints are caused.
The main structure of the ignition device has single-needle ignition and double-needle ignition, the single-needle ignition is ignition needle discharge ignition to a fire row slice, the double-needle ignition is ignition discharge ignition to a functional grounding terminal, wherein the functional grounding terminal is divided into two forms of a metal support welding functional grounding terminal and a functional grounding terminal which are connected with a machine shell through a wiring harness. Single needle ignition: the distance and the angle between the ignition needle and the fire discharging sheet are ensured by the assembly clearance, and the assembly clearance and the accumulated error can possibly cause the ignition success rate to be reduced; the ceramic body of the ignition needle is in small interference fit connection with the metal fixing frame, and failure such as looseness, ceramic body fracture and the like can exist after transportation; the ignition needle cable is made of Teflon (FEP), the wall thickness is thin, and the risk of breakage exists after repeated pulling; and (3) double-needle ignition: the support of the ignition needle device is of a metal structure, the functional grounding terminal is welded on the support, and the ignition success rate is reduced due to the rebound deformation after the metal support die is formed, the stress deformation after the functional grounding terminal is welded and the assembly accumulated error.
It can be expected that the existing ignition device, whether single-needle or double-needle ignition, has the problems of low ignition success rate caused by factors such as accumulated assembly error, auxiliary cable breakage, unstable integral combination of the ignition device, easy looseness in transportation and the like.
The application number is 201810094146.5 chinese patent, discloses a combustor ignition needle convenient to assembly, including the ignition needle body, the ignition needle body outside is equipped with the protective sheath, and the protective sheath outer wall is equipped with the boss, and the boss joint is in the draw-in groove that flourishing liquid dish bottom set up, and the bottom joint of protective sheath is on the cassette that ignition needle body outer wall was equipped with, and the upper surface of boss and the lower surface contact of flourishing liquid dish, and the lateral wall face of boss is equipped with the edges and corners of the flourishing liquid dish bottom of joint, and the outer wall of protective sheath scribbles high temperature heat-resistant coating.
The ignition needle is fixed and positioned in a layer-by-layer compression mode that the liquid containing disc compresses the protective sleeve and the protective sleeve compresses the ignition needle body.
The application number is 202021061099.3's chinese patent, the utility model discloses an infrared burner ignition needle structure, including porcelain spare main part and the ignition needle of fixed connection in porcelain spare main part, the ignition needle includes linkage segment and ignition section, and linkage segment and ignition section structure as an organic whole, the bottom of linkage segment is used for connecting the ignition line, and the outer end of ignition section is used for lighting the gas (air) mixture that the cooking utensils fire hole spilled over. The utility model discloses add the fillet on porcelain spare main part basis, fillet fixed connection porcelain spare main part, fillet and porcelain spare main part parcel ignition needle.
The utility model discloses a divide into two parts of porcelain spare main part and fillet with the integrative porcelain spare of prior art for fillet and porcelain spare main part wrap up the ignition needle, aim at, avoid the exposed longer easy contact water of length of ignition needle and other debris to influence the problem that the work appears warping easily in igniteing, the big difference in temperature state, with the stability that improves gas cooking utensils and use.
It can be seen that the technical problems to be solved by the technical solutions in the above patents are not mentioned in the present application, and the technical solutions in the above patents do not solve the problems of low ignition success rate and poor sensitivity and accuracy of detecting flame of the detecting pin in the prior art at least from the perspective of reasonable arrangement of the ignition pin, the detecting pin, the functional grounding terminal and other main ignition device components.
The present invention has been made in view of this situation.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide a double-needle ignition scheme, and the design scheme of the invention aims to improve the ignition success rate by reasonably arranging main functional components such as an ignition needle, a functional grounding terminal and the like.
The invention provides an ignition device for igniting a fire grate, which comprises a bracket, an ignition needle, a functional grounding terminal, a detection needle and a cable, wherein the ignition needle, the functional grounding terminal, the detection needle and the cable are arranged on the bracket, and a discharge space formed by the ignition needle and the functional grounding terminal is positioned above at least one flame hole of the fire grate and is inclined relative to the surface of the fire grate.
Further, the discharge spacing is disposed across the at least one flame hole.
Further, the tail ends of the ignition needle and the functional grounding terminal are in a tip structure.
Further, the end of the ignition needle higher than the end of the functional ground terminal is arranged on the bracket.
Further, the detection needle comprises an upper bending section, and the bending section spans at least two fire rows.
Further, the at least two fire rows comprise the fire row in which the at least one flame hole is located.
Further, the bracket comprises a bracket body, a positioning structure and a fixing structure;
the positioning structure is used for limiting the installation positions of the ignition needle, the functional grounding terminal, the detection needle and the cable;
the fixing structure at least comprises a fixing structure used for limiting the movement of the ignition needle and the functional grounding terminal.
Further, the support is of an integrated structure, and preferably, the support is made of 95 porcelain.
Furthermore, the cable adopts a stranded tinned copper wire, an insulating layer is silicon rubber, and the working temperature is-60-200 ℃, and comprises an ignition electrode cable, a functional ground wire cable and a detection electrode cable;
the voltage grade of the ignition electrode cable is 20kV, and the voltage grades of the functional ground wire cable and the detection electrode cable are 10 kV.
Furthermore, the tail end of the functional ground wire cable is provided with an earring terminal which can be externally connected with a using device.
In order to achieve the above object, a second aspect of the present invention provides a burner, including any one of the above ignition devices.
Preferably, the cable of the ignition device comprises a functional ground cable, and an earring terminal is arranged at the tail end of the functional ground cable and is fixed on the combustor shell through a fastener.
After adopting the technical scheme, compared with the prior art, the invention has the following beneficial effects:
1. the reasonable arrangement of the ignition needle and the functional grounding terminal enables the discharge space to be positioned above the at least one flame hole and to incline relative to the flame exhaust surface, so that electric sparks formed between the ignition needle and the functional grounding terminal can obliquely penetrate through gas flow sprayed out of the at least one flame hole, compared with the situation that the electric sparks are vertical to and parallel to the gas flow, the ignition is easier and the successful ignition probability is higher, and the spatial arrangement of the discharge space can reduce the influence of errors such as assembly on the use effect of the ignition device to the maximum extent, so that the discharge space can be positioned above the at least one flame hole, the ignition success rate is ensured, and the tail ends of the ignition needle and the functional grounding terminal can be arranged into tip structures to further improve the ignition success rate;
2. the detection needle is arranged across at least two fire rows, so that the detection needle can timely and accurately sense flame, and the detection sensitivity and accuracy of the detection needle are improved;
3. through the integrated support structure integrating the functions of supporting, fixing and positioning, the support and the auxiliary means such as the selection of the cable material are adopted properly, the external factor influence which can influence the ignition success rate, the flame detection sensitivity and the flame detection accuracy in the prior art can be reduced, and the ignition success rate of the device and the accuracy and the sensitivity of detecting whether the ignition is successful are further improved.
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention, are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without limiting the invention to the right. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:
FIG. 1 is a schematic structural diagram of an ignition device according to an embodiment of the present invention;
FIG. 2 is a front view of the ignition device of FIG. 1;
FIG. 3 is a top view of the ignition device of FIG. 1;
FIG. 4 is a left side view of the ignition device of FIG. 1;
FIG. 5 is a right side view of the ignition device of FIG. 1;
FIG. 6 is a bottom view of the ignitor of FIG. 1;
FIG. 7 is an enlarged view of a portion of the ignition pin of the ignition device of FIG. 2 mated with a functional ground terminal
FIG. 8 is a partial schematic view of an ignition device assembled with a burner bank in accordance with an embodiment of the present invention;
FIG. 9 is a schematic view of the ignition point of an ignition device according to an embodiment of the present invention;
FIG. 10 is a partial schematic view of an ignition device according to an embodiment of the present invention in use with an ignition pin, functional ground terminal, and burner bank.
In the figure: 1. an ignition needle; 2. a functional ground terminal; 3. detecting a needle; 4. a support; 41. a positioning structure; 42. a fixed structure; 5. a cable; 51. an ignition electrode cable; 52. a functional ground cable; 53. a detection electrode cable; 521. an ear ring terminal; 6. fire grate; 61. a first fire grate; 62. a second fire grate; 7. a flame hole; 71. a first flame hole; 72. and a second flame hole.
It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate it by a person skilled in the art with reference to specific embodiments.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and the following embodiments are used for illustrating the present invention and are not intended to limit the scope of the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, should not be construed as limiting the present invention unless otherwise specified.
In the description of the present invention, it should be noted that, unless explicitly set and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
As shown in fig. 1, fig. 1 is a schematic structural diagram of an ignition device according to an embodiment of the present invention, and may be used for ignition of a fire row 6, where a flame hole 7 on the fire row 6 is used for ejecting fuel gas, and the at least one flame hole according to the present invention may be two flame holes, specifically, a first flame hole 71 and a second flame hole 72, and more specifically, fig. 2 to 6 may be a front view, a top view, a left view, a right view, and a bottom view of the ignition device in fig. 1, respectively, and fig. 7 may be a partially enlarged view of an ignition pin in the ignition device in fig. 2 cooperating with a functional ground terminal, and in this embodiment, the ignition device may include: ignition pin 1, functional ground terminal 2, detection pin 3, holder 4 and cable 5.
In this embodiment, the at least one flame hole includes two flame holes, namely a first flame hole 71 and a second flame hole 72, and the two flame holes are two rectangular holes.
It can be understood that the number of the flame holes included in the ignition point is not limited, and preferably, at least two flame holes are included, so as to avoid that the single flame hole is blocked, and the like, so that the ignition cannot be successfully ignited.
The ignition needle 1 and the functional grounding terminal 2 are two ignition electrodes, and when the ignition needle 1 is ignited, the functional grounding terminal 2 is discharged to generate electric sparks to ignite.
In one embodiment, the functional grounding terminal 2 is connected with the shell of the burner, the ground wire of the pulse igniter is also connected with the shell of the burner, namely the functional grounding terminal is connected with the ground wire of the pulse igniter through the shell of the burner, and the discharge end of the pulse igniter is connected with the discharge end of the ignition needle through a cable, so that a closed loop is formed, reliable discharge at the end part of the ignition needle is ensured, and the phenomenon of random discharge is avoided. When the ignition needle discharges to the functional grounding terminal to ignite electric sparks between the ignition needle and the functional grounding terminal and the sequentially connected passages form a closed loop together so as to ensure the reliable discharge of the ignition needle. The discharge distance between the ignition pin 1 and the functional ground terminal 2, that is, the shortest connecting line between the two ends, is shown by the thick black solid line between the end of the ignition pin 1 and the end of the functional ground terminal 2 in fig. 3 and 7, and it can be understood that the discharge distance shown in the figures is the main path of the electric spark formed between the two ignition electrodes.
In the embodiment, through reasonable spatial arrangement of the ignition needle and the functional grounding terminal, the formed discharge space can be positioned above at least one flame hole of the flame bank and is inclined relative to the plane where the at least one flame hole is positioned, namely the flame bank surface, the ignition electrode is arranged in such a way that electric sparks can obliquely penetrate through the gas flow jetted from the at least one flame hole, the oblique penetration is more labor-saving relative to the vertical penetration gas flow, the spark penetration distance in the same gas flow is longer, and compared with the arrangement of the discharge space vertical to the surface of the flame bank, namely the arrangement of the discharge space parallel to the gas flow, the influence of the gas flow jetted from the at least one flame hole on the path of the electric sparks can be reduced, and more importantly, even if the interference of external factors such as deformation of components of the ignition device, assembly errors and the like, such as rebound deformation after molding of a metal bracket die, stress deformation after welding of the functional grounding terminal, assembly accumulated errors and the like exist, the discharge space can be ensured to be over the at least one flame hole to the maximum extent, so that the ignition success rate is ensured.
The concept that the discharge space is located above the at least one flame hole can be understood as a section of the discharge space above each of the at least one flame hole as the ignition point, that is, a projection of the discharge space in each of the at least one flame hole as the ignition point.
It is conceivable that the discharge gap is arranged across the at least one flame hole if it is to be achieved that the discharge gap is located above the at least one flame hole as ignition point.
The length of the path spanned by the discharge space spanning above the at least one flame hole may be arranged according to actual conditions, the discharge space may be arranged across the at least one flame hole but not across the outermost peripheries of the two uppermost and lowermost flame holes in the span extension direction, or the discharge space may be arranged completely across the at least one flame hole, that is, the discharge space spans across the at least one flame hole and spans the outermost peripheries of the two uppermost and lowermost flame holes in the span extension direction, preferably, the projection of the discharge space completely spanning the at least one flame hole on the fire row plane may coincide with the two points of the at least one flame hole which are farthest from each other, so that the trajectory of the electric spark penetrating gas flow generated in the discharge space may be longer, and the two points of the at least one flame hole which are farthest from each other in the first flame hole in the present embodiment, The arrangement of the connecting line of the two points on the opposite vertex angle on the periphery of the second flame hole can ensure that the length of the discharge space above the surface of the at least one flame hole is longest, more precisely, the electric spark track penetrating into the gas flow ejected from the at least one flame hole is longer, namely, the electric spark contacts with the gas more, and further, the probability of successful ignition can be improved.
That is, the arrangement of the ignition needle and the functional ground terminal may enable the discharge gap to completely span the at least one flame hole, and when the spanned path is long, the length of the electric spark penetrating the gas flow jetted out from the at least one flame hole is relatively long, which may further improve the success rate of ignition.
Preferably, the two end points of the discharge gap, that is, the projections of the terminal ends of the ignition needle and the functional ground terminal on the fire row surface respectively and correspondingly coincide with the outermost edges of the two uppermost and lowermost flame holes in the direction of the span of the discharge gap, so as to avoid that the ignition needle and/or the functional ground terminal may cross over into the region from which other flame holes are jetted when the discharge gap is too long, or that the ignition needle and/or the functional ground terminal with too short discharge gap may be located right in the region from which at least one flame holes are jetted when the discharge gap is too short, so as to prevent the service life of the ignition needle and/or the functional ground terminal from being shortened when the ignition needle and/or the functional ground terminal is burned when the gas is burned in the corresponding region.
The tail ends of the ignition needle 1 and the functional grounding terminal 2 can be tip structures, the tail ends of the ignition needle and the functional grounding terminal can be directly processed into the tip structures, and the tail ends of the ignition needle 1 and the functional grounding terminal 2 can guarantee the accuracy of the discharging position due to the design of the tip structures.
It will be appreciated that in order to form a discharge gap above at least one flame hole and inclined with respect to the plane of said at least one flame hole, i.e. the flame bank plane, the terminal ends of the ignition pin 1 and the functional ground terminal 2 must be arranged one above the other on the holder and, in use, one above the other with respect to the flame bank plane, preferably the terminal end of the ignition pin is arranged above the terminal end of the functional ground terminal, so as to avoid that, in the opposite arrangement, the spark generated by the discharge of the ignition pin may act on non-target ignition sites.
In one embodiment, the tip of the firing pin and the tip of the functional ground terminal 2 have a height difference in the vertical direction with respect to the fire bank plane, which may be a height difference of 1.0mm, i.e., the tip of the firing pin is at a greater distance from the fire bank plane.
That is to say, the arrangement of the ignition needle and the functional ground terminal in the embodiment of the present invention may be such that the discharge gap is set from high to low, and the discharge gap is located above at least one flame hole of the flame bank and keeps a certain angle with the surface of the flame bank, so that even if there are external interference factors such as deformation of ignition device components, assembly errors, etc., the spatial arrangement of the discharge gap can weaken the external interference to the greatest extent to ensure that the discharge gap can always span the at least one flame hole, thereby ensuring the success rate of ignition.
The detection pin 3 is a detection electrode for detecting a flame to control the operating state of the ignition device such as the ignition pin 1, for example, when the detection pin detects that there is a flame, i.e., the ignition is successful, the ignition pin stops discharging.
The detection needle includes the bending segment on upper portion, and the bending segment spanes two at least fire rows, no matter how the detection needle arranges on the support with ignition needle, function ground terminal, even there is the problem that gas pressure is on the low side or the gas calorific value is on the low side and leads to passing a fire slow speed, also can guarantee to detect the sensitivity and the rate of accuracy that the needle detected flame to solve the problem that the ignition that produces because of can not detecting flame is invalid.
Preferably, the at least two fire banks can include ignition needles, fire banks in which ignition positions of the functional grounding terminals are located, that is, fire banks in which the at least one flame hole serving as an ignition point is located, and the arrangement can enable the detection needles to detect whether ignition is successful in time so as to ensure the sensitivity and accuracy of detection of the detection needles.
It is conceivable that the detection pin may be provided at one end of the ignition position in the direction of propagation of the fire, which may further improve the sensitivity and accuracy of detection of the detection pin.
It can be understood that the support adopts an integrated structure integrating supporting, positioning and fixing functions as much as possible, so that the influence of point transportation, component deformation, movement, assembly and the like on the ignition device can be reduced to the maximum extent, the discharge space can always span above the at least one flame hole serving as the ignition point, the ignition success rate can be further ensured, and the detection accuracy and sensitivity of the detection needle can also be ensured.
The cable 5 may include an ignition electrode cable 51, a functional ground cable 52 and a detection electrode cable 53 for connecting an ignition needle, a functional ground terminal and a detection needle, respectively, wherein an end of the functional ground cable 52 may be provided with an earring terminal for connecting a user device.
The inner core material of the cable 5 can be a stranded tinned copper wire, the insulating layer can be silicon rubber, the working temperature can be-60-200 ℃, the voltage grade of the ignition electrode cable can be 20kV, the voltage grades of the functional ground wire cable and the detection electrode cable can be 10kV, the purpose is to prolong the service life of the cable by adopting high-quality cable materials and suitable working conditions, and further avoid the reduction of the ignition success rate of the ignition needle 1 and the detection sensitivity and accuracy of the detection needle due to the factors of the cable 5.
The end of the functional ground cable can be provided with an ear ring terminal for externally connecting the using equipment, and the ear ring terminal can ensure that the functional ground cable can be more reliably connected to the using equipment represented by a burner, and particularly can be connected to a shell of the using equipment such as the burner.
It can be understood that, the ignition needle 1 and the functional grounding terminal 2 are reasonably arranged, so that the discharge space formed between the ignition needle 1 and the functional grounding terminal is positioned above at least one flame hole and is inclined relative to the plane where the at least one flame hole is positioned, namely inclined relative to the fire exhaust surface, the contact point of an electric spark and a gas flow to be ignited can be increased, the ignition needle and the functional grounding terminal which can generate the discharge space are not easily interfered by external factors such as assembly errors and ignition device component deformation, the discharge space can be always ensured to be over the at least one flame hole, the success rate of ignition is improved, and when the length of the discharge space is selected to be proper and the setting direction of the discharge space is optimally selected, the effects can be optimized and other benefits can be brought; the design that the detection needle crosses at least two fire rows, namely, the detection needle crosses at least two fire rows which are far away from the ignition position and close to the ignition position, so that the detection needle is not influenced by slow fire transfer speed caused by low gas pressure, low heat value and the like, the detection sensitivity and accuracy of the detection needle can be improved, and preferably, the at least two fire rows comprise the fire row in which the ignition position is located; the proper selection of other ignition device components such as a bracket, a cable and the like can further enhance the effects of improving the ignition success rate and improving the detection sensitivity and accuracy of the detection needle.
That is to say, the discharge space is arranged above at least one flame hole and forms a certain angle with the plane where the at least one flame hole is located, namely the fire grate surface, the discharge space can be arranged from high to low, the tail ends of the ignition needle and the functional grounding terminal can be arranged into a tip structure, and electric sparks penetrate through the flame hole in an inclined mode to jet airflow, so that the ignition success rate can be improved; the detection needle spans at least two fire rows, so that the speed, the sensitivity and the accuracy of flame detection can be improved; the ignition needle device support is sintered at high temperature by adopting 95 porcelain, the support ceramic body is provided with a positioning and fixing structure, the material strength is high, the positioning is accurate, the assembly process is simple and reliable, and the auxiliary design of the cable can further optimize the ignition device.
Fig. 8 is a partial schematic view of an ignition device and a burner assembly according to an embodiment of the present invention, and in particular, may be a partial schematic view of an ignition device and a burner bank assembly shown in fig. 1.
In this embodiment, the ignition device holder may be sequentially provided with a detection pin, a functional ground terminal, and an ignition pin from left to right, a discharge gap between the ignition pin and the functional ground terminal is located above the two flame holes and is inclined with respect to a plane where the two flame holes are located, i.e., a flame row plane, the ends of the functional ground terminal and the ignition pin are both in a tip structure, and the end of the ignition pin is higher than the functional ground terminal, i.e., the discharge gap is set from high to low, in this embodiment, projections of the ends of the ignition pin 1 and the functional ground terminal 2 on the flame row plane coincide with a peripheral long side of the second flame hole 72 and the first flame hole 71, respectively; the detection needle 3 is located the fire and arranges 6, and the kink of detection needle is longer and spanes first fire and arrange 61, two fire rows of 62 are arranged to the second fire, and the setting that spanes two fire rows makes the detection needle can avoid leading to the detection needle to detect flame when the speed of passing a fire is slow because of gas pressure is low on the low side or gas calorific value low on the low side etc. and then can guarantee the sensitivity and the accuracy that detect the needle and detect.
In one embodiment, the ear loop terminal 521 at the end of the functional ground cable 52 is secured to the burner, which may be a housing of the burner, by a fastener, which may be a screw.
As shown in fig. 9, specifically, in the schematic diagram of the ignition point of the ignition device according to the embodiment of the present invention, the ignition point is two flame holes, that is, in the present embodiment, the at least one flame hole as the ignition point is two flame holes, and the solid black line is a line corresponding to two points farthest from the at least one flame hole in the present embodiment, when the discharge distance spans the two flame holes in the present embodiment, it is preferable that a projection of the discharge distance of the ignition device on the flame row surface may coincide with the solid line, so as to increase a contact point between the discharge distance and the gas flow to the maximum extent to improve the ignition success rate.
FIG. 10 is a partial schematic view of an ignition device according to an embodiment of the present invention in use with an ignition pin, functional ground terminal, and burner bank.
In the embodiment, the ignition needle and the functional grounding terminal are arranged in a high-low mode, the tail end of the ignition needle is higher than the tail end of the functional grounding terminal, and a height difference exists between the ignition needle and the surface of the fire grate when the ignition needle is matched with the fire grate for use.
Therefore, the invention aims to realize the above spatial arrangement of the discharge space through the reasonable spatial arrangement of the ignition needle and the functional grounding terminal, and further, the proper design of the bracket and the cable is supplemented to ensure that the discharge space can always span at least one flame hole as an ignition point, so that electric sparks can always obliquely pass through the gas flow ejected from the flame hole, and further the success rate of ignition is ensured; the detection accuracy and sensitivity can be ensured by the design that the detection needle at least spans two fire rows and the proper design of the bracket and the cable.
Although the present invention has been described with reference to a preferred embodiment, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An ignition device is used for igniting a fire grate and comprises a support, an ignition needle, a functional grounding terminal, a detection needle and a cable, wherein the ignition needle, the functional grounding terminal, the detection needle and the cable are installed on the support.
2. The ignition device of claim 1, wherein said firing pin and functional ground terminal terminate in a pointed configuration.
3. An ignition device as claimed in claim 1 or 2, characterized in that the end of the ignition pin which is higher than the end of the functional ground terminal is arranged on the holder.
4. The ignition device of claim 1, wherein the sensing pin includes an upper bend that spans at least two fire rows.
5. The ignition device of claim 4, wherein the at least two fire banks include a fire bank in which the at least one flame hole is located.
6. The ignition device of any one of claims 1-5, wherein the bracket comprises a bracket body, a positioning structure and a fixing structure;
the positioning structure is used for limiting the installation positions of the ignition needle, the functional grounding terminal, the detection needle and the cable;
the fixing structure at least comprises a fixing structure used for limiting the movement of the ignition needle and the functional grounding terminal.
7. An ignition device as claimed in claim 6, wherein the support is of unitary construction, preferably of 95 porcelain.
8. An ignition device according to claim 1,
the cable adopts a stranded tinned copper wire, an insulating layer is silicon rubber, and the working temperature is-60-200 ℃, and comprises an ignition electrode cable, a functional ground wire cable and a detection electrode cable;
the voltage grade of the ignition electrode cable is 20kV, and the voltage grades of the functional ground wire cable and the detection electrode cable are 10 kV.
9. The ignition device of claim 8 wherein the functional ground cable terminates in an earring terminal adapted to be connected to a user device.
10. A burner comprising the ignition device of any one of claims 1 to 9;
preferably, the cable of the ignition device comprises a functional ground cable, and an earring terminal is arranged at the tail end of the functional ground cable and is fixed on the combustor shell through a fastener.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019593.2A CN114963231A (en) | 2021-09-01 | 2021-09-01 | Ignition device and combustor using same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111019593.2A CN114963231A (en) | 2021-09-01 | 2021-09-01 | Ignition device and combustor using same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114963231A true CN114963231A (en) | 2022-08-30 |
Family
ID=82970784
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111019593.2A Pending CN114963231A (en) | 2021-09-01 | 2021-09-01 | Ignition device and combustor using same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114963231A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471947A (en) * | 1990-07-11 | 1992-03-06 | Tokai Rika Co Ltd | Starting device |
| JPH09310846A (en) * | 1996-05-24 | 1997-12-02 | Mitsubishi Heavy Ind Ltd | Cleaning method and apparatus for flame detector for combustor |
| CN2921620Y (en) * | 2006-07-21 | 2007-07-11 | 杨学凯 | Igniting device for gas fireplace |
| CN102777903A (en) * | 2011-05-13 | 2012-11-14 | 烟台众德环保设备科技有限公司 | Intelligent and anti-corrosive type metal fiber surface burner |
| CN203771449U (en) * | 2013-12-05 | 2014-08-13 | 广州市红日燃具有限公司 | Ignition device of infrared burner |
| US20180023811A1 (en) * | 2015-02-20 | 2018-01-25 | Intergas Heating Assets B.V. | Method and device for determining whether ignition has occurred |
| CN209147423U (en) * | 2018-10-19 | 2019-07-23 | 华帝股份有限公司 | Micro-deflection angle ignition device and gas water heater |
| CN209689169U (en) * | 2018-12-12 | 2019-11-26 | 华帝股份有限公司 | Ignition induction needle with deflection angle and burner using same |
| CN111895404A (en) * | 2020-07-01 | 2020-11-06 | 华帝股份有限公司 | Combustor with enhanced fire transmission function and heating stove using same |
| CN212319779U (en) * | 2020-05-20 | 2021-01-08 | 芜湖美的厨卫电器制造有限公司 | Ignition device and gas water heater |
| CN113137626A (en) * | 2020-01-17 | 2021-07-20 | 芜湖美的厨卫电器制造有限公司 | Ignition device, combustor and gas heater |
-
2021
- 2021-09-01 CN CN202111019593.2A patent/CN114963231A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0471947A (en) * | 1990-07-11 | 1992-03-06 | Tokai Rika Co Ltd | Starting device |
| JPH09310846A (en) * | 1996-05-24 | 1997-12-02 | Mitsubishi Heavy Ind Ltd | Cleaning method and apparatus for flame detector for combustor |
| CN2921620Y (en) * | 2006-07-21 | 2007-07-11 | 杨学凯 | Igniting device for gas fireplace |
| CN102777903A (en) * | 2011-05-13 | 2012-11-14 | 烟台众德环保设备科技有限公司 | Intelligent and anti-corrosive type metal fiber surface burner |
| CN203771449U (en) * | 2013-12-05 | 2014-08-13 | 广州市红日燃具有限公司 | Ignition device of infrared burner |
| US20180023811A1 (en) * | 2015-02-20 | 2018-01-25 | Intergas Heating Assets B.V. | Method and device for determining whether ignition has occurred |
| CN209147423U (en) * | 2018-10-19 | 2019-07-23 | 华帝股份有限公司 | Micro-deflection angle ignition device and gas water heater |
| CN209689169U (en) * | 2018-12-12 | 2019-11-26 | 华帝股份有限公司 | Ignition induction needle with deflection angle and burner using same |
| CN113137626A (en) * | 2020-01-17 | 2021-07-20 | 芜湖美的厨卫电器制造有限公司 | Ignition device, combustor and gas heater |
| CN212319779U (en) * | 2020-05-20 | 2021-01-08 | 芜湖美的厨卫电器制造有限公司 | Ignition device and gas water heater |
| CN111895404A (en) * | 2020-07-01 | 2020-11-06 | 华帝股份有限公司 | Combustor with enhanced fire transmission function and heating stove using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104075342B (en) | The premixed anti-interference burning torch of a kind of industrial burner | |
| CN114963231A (en) | Ignition device and combustor using same | |
| CN209266848U (en) | A kind of spark plug for installing on the engine | |
| CN113137626A (en) | Ignition device, combustor and gas heater | |
| US6351060B1 (en) | Moisture-resistant igniter for a gas burner | |
| EP3896338A1 (en) | Burner and gas water heater | |
| CN212319779U (en) | Ignition device and gas water heater | |
| CN212108497U (en) | Ignition device for boiler burner | |
| CN220205823U (en) | Ignition needle assembly and gas stove | |
| CN219422651U (en) | Infrared gas oven | |
| CN211476003U (en) | Fire tube ignition device | |
| CN212644678U (en) | Ignition needle structure of infrared burner | |
| CN218469083U (en) | Flame stabilizing device | |
| CN110671722B (en) | Gas stove and ignition device thereof | |
| CN221222765U (en) | High-efficiency ignition needle and side ignition device of gas furnace end | |
| CN214664588U (en) | Ignition detection assembly | |
| CN213119165U (en) | Flame-throwing head for energy-saving burner | |
| JP7477442B2 (en) | Combustion equipment | |
| CN215112764U (en) | Gas heating furnace | |
| CN116857680B (en) | Gas stove, burner and ignition device thereof | |
| JP2947315B2 (en) | Oil-fired discharge igniter | |
| CN217031257U (en) | Novel electric arc formula cigar lighter | |
| CN216448220U (en) | Piezoelectric ignition structure of upper air inlet type combustor | |
| JP2947319B2 (en) | Discharge electrode mounting structure for oil combustor | |
| CN211694988U (en) | Ignition needle, combustor adopting same and wall-mounted furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |