CN216203341U - Burner and fire hole plate - Google Patents

Abstract

The utility model relates to a burner and a fire hole plate. The first plate body and the second plate body are arranged at included angles, and the top angles of the first plate body and the second plate body are arranged in the injection channel in an injection mode, so that mixed gas is gathered from two sides towards the middle of the fire hole plate, the concentration of the mixed gas flowing out of the combustion-supporting fire hole and the main fire hole is high, and the combustion efficiency is guaranteed. Meanwhile, at least one side of each main fire hole is provided with a combustion-supporting fire hole corresponding to the main fire hole in the length direction of the fire hole plate; on the width direction of fire orifice plate, the length in main fire hole is longer than the length in the combustion-supporting fire hole, the extension orbit in main fire hole is extended to the second plate body by first plate body, thereby make arranging of main fire hole and combustion-supporting fire hole be length alternate form, be favorable to the burning of gas mixture, and, the flame that the gas mixture that flows from combustion-supporting fire hole department produced is shorter, the root of the flame that the gas mixture that can flow from main fire hole department effectively produced carries out the local heating, also can improve combustion efficiency.

Description

Burner and fire hole plate

Technical Field

The utility model relates to the technical field of heat exchange, in particular to a burner and a fire hole plate.

Background

The heat exchange device such as a gas water heater and the like ignites after mixing combustible gas and air to generate high-temperature flue gas, and the heat exchange medium is heated by utilizing the heat exchange between the high-temperature flue gas and the heat exchange medium. The combustion single sheet is mainly used for fully mixing combustible gas and air and igniting the combustible gas by the combustion inner core to obtain high-temperature flue gas. When the combustion power of the combustion single piece is high (when the combustion power of the combustion single piece exceeds 4.2 kW), the traditional combustion single piece has the problems of insufficient combustion and low combustion efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a fire hole plate which ensures sufficient combustion and improves the combustion efficiency.

The second technical problem to be solved by the present invention is to provide a burner, which ensures sufficient combustion and improves combustion efficiency.

The first technical problem is solved by the following technical scheme:

a fire hole plate is used for covering an opening of an injection passage of a combustor and comprises a first plate body and a second plate body which are arranged at an included angle and connected with each other, and the vertex angles of the first plate body and the second plate body face the inside of the injection passage; the fire hole plate is provided with at least one combustion-supporting fire hole and at least two main fire holes, the at least two main fire holes are arranged at intervals along the length direction of the fire hole plate, and at least one side of each main fire hole is provided with one combustion-supporting fire hole corresponding to the main fire hole; the length of the main fire hole is longer than that of the combustion-supporting fire hole along the width direction of the fire hole plate, and the extending track of the main fire hole extends from the first plate body to the second plate body.

Compared with the background technology, the fire hole plate of the utility model has the following beneficial effects: when the high-temperature smoke-gas injection device is used, mixed gas in the injection channel flows out through the combustion-supporting fire holes and the main fire holes and is ignited to generate high-temperature smoke gas. Wherein, first plate body and second plate body are the contained angle setting to, the apex angle orientation of first plate body and second plate body draws and penetrates the passageway and set up, thereby make the gas mixture gather together from both sides towards the middle part of fire orifice plate, guarantee from the concentration of the gas mixture of combustion-supporting fire orifice and main fire orifice department outflow higher, guarantee combustion efficiency. Meanwhile, at least one side of each main fire hole is provided with a combustion-supporting fire hole corresponding to the main fire hole in the length direction of the fire hole plate; in the width direction of fire hole board, the extension orbit of main fire hole is extended to the second plate body by first plate body, and the length in main fire hole is longer than the length in combustion-supporting fire hole, and the flame that the gas mixture that flows out from combustion-supporting fire hole produces is shorter, can be effective carry out the local heating from the root of the flame that the gas mixture that flows out rather than the main fire hole department that corresponds produced, can improve combustion efficiency.

In one embodiment, the distance between the combustion-supporting fire hole and the corresponding main fire hole is a along the length direction of the fire hole plate; the width of the main fire hole is b; wherein a is more than or equal to 1.2b and less than or equal to 1.5 b.

In one embodiment, one combustion-supporting fire hole is arranged between any two adjacent main fire holes. In the scheme, all the main fire holes and the combustion-supporting fire holes are arranged in a length-alternating mode, so that the mixed gas can be fully combusted.

In one embodiment, the fire hole plate is provided with at least two first fire hole groups which are oppositely arranged at intervals along the length direction of the fire hole plate, each first fire hole group comprises two combustion-supporting fire holes and three main fire holes, and one combustion-supporting fire hole is arranged between every two adjacent main fire holes. In each first fire hole group, the main fire holes and the combustion-supporting fire holes are arranged in a length-alternating mode, so that the mixed gas can be fully combusted.

In one of them embodiment, the both ends of fire hole board all are equipped with and are located the main fire hole with the second fire hole group outside the combustion-supporting fire hole, the second fire hole group includes first vice fire hole and the vice fire hole of second, first vice fire hole with the vice fire hole of second is the interval setting, first vice fire hole with the vice fire hole one-to-one of second just about the first plate body with the handing-over line symmetric distribution of second plate body.

In one embodiment, the extending track of the combustion-supporting fire hole extends from the first plate body to the second plate body.

In one embodiment, each combustion-supporting fire hole is replaced by a fire hole pair, each fire hole pair comprises a third auxiliary fire hole and a fourth auxiliary fire hole which are oppositely arranged at intervals, and the third auxiliary fire holes and the fourth auxiliary fire holes are in one-to-one correspondence and are symmetrically distributed about the joint line of the first plate body and the second plate body.

In one embodiment, the fire hole plate further comprises two supporting pieces, one of the two supporting pieces is arranged on one side far away from the second plate body and connected with the first plate body, the other one of the two supporting pieces is arranged on one side far away from the first plate body and connected with the second plate body, each supporting piece comprises a horizontal portion extending along the horizontal direction and a bending portion facing the direction of the injection channel, one end of each horizontal portion is connected with the first plate body and the second plate body respectively, the other end of each horizontal portion is connected with the two bending portions respectively, and the two bending portions are connected with two side walls of the injection channel respectively.

The second technical problem is solved by the following technical solutions:

the utility model provides a combustor, draws the body and above-mentioned fire orifice plate including drawing, draw the body including two and draw and penetrate the piece, two draw and penetrate the piece and enclose and establish into and have the open-ended and draw and penetrate the passageway, support piece with correspond draw and penetrate the piece and connect, fire orifice plate cover is located on the opening and with draw the body coupling.

Compared with the background art, the combustion single piece has the following beneficial effects: the outside air enters the injection passage from the injection port of the injection passage and is mixed with the combustible gas to obtain mixed gas, the mixed gas flows out of the fire hole plate at the opening and is ignited to be fully combusted to generate high-temperature flue gas, and the combustion efficiency is high.

In one embodiment, the fire hole plate is provided with at least two first fire hole groups which are oppositely arranged at intervals along the length direction of the fire hole plate, each first fire hole group comprises two combustion-supporting fire holes and three main fire holes, and one combustion-supporting fire hole is arranged between every two adjacent main fire holes; draw the both sides of the body and all be equipped with two at least convex hulls, draw every one side of the body the convex hull all with first fire hole group one-to-one sets up, the convex hull is equipped with the flame stabilizing groove, the flame stabilizing groove has ascending uncovered, support piece is equipped with and is used for the intercommunication draw penetrate the passageway with the intercommunicating pore of flame stabilizing groove, the intercommunicating pore is followed the width direction branch of fire hole board is located the both sides of combustion-supporting fire hole, the outside limit of convex hull is equipped with the flame deflector that leads that upwards extends.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the utility model and, together with the description, serve to explain the utility model and not to limit the utility model.

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

FIG. 1 is a schematic view of a combustor according to an embodiment;

FIG. 2 is an enlarged fragmentary view of a portion of the combustor A of FIG. 1;

FIG. 3 is a cross-sectional view of the burner D-D of FIG. 1;

FIG. 4 is a top view of the combustor of FIG. 1;

FIG. 5 is an enlarged partial view of an embodiment of portion E of the combustor of FIG. 4;

FIG. 6 is an enlarged partial view of another embodiment of portion E of the burner of FIG. 4;

fig. 7 is a partially enlarged view of a portion F of the burner of fig. 4.

Reference numerals:

100. fire hole plates; 110. a first plate body; 120. a second plate body; 130. a first fire hole group; 131. combustion-supporting fire holes; 132. a main fire hole; 140. a support member; 141. a bending part; 142. a horizontal portion; 143. a communicating hole; 150. cross-connecting wires; 160. a second fire hole group; 161. a first auxiliary fire hole; 162. a second pair of fire holes; 200. an ejector body; 210. an injection passage; 220. ejecting sheets; 221. a convex hull; 223. a flame guide plate; 230. a flame stabilizing groove.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. 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. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

As shown in fig. 1 to 3, in one embodiment, a burner is provided, which includes an injector body 200 and a fire hole plate 100. The injector 200 is provided with an injector passage 210 having an opening, and the fire hole plate 100 is covered on the opening and connected with the injector 200. Therefore, the outside air enters the injection passage 210 from the injection port of the injection passage 210 and is mixed with the combustible gas to obtain the mixed gas, the mixed gas flows out of the fire hole plate 100 at the opening and is ignited to be fully combusted to generate high-temperature flue gas, and the combustion efficiency is high.

Wherein, the injection port and the opening are respectively located at two opposite ends of the injection passage 210.

As shown in fig. 1 to 4, the fire hole plate 100 is optionally used to cover the opening of the injection passage 210 of the burner. Specifically, the fire hole plate 100 includes a first plate 110 and a second plate 120 that are disposed at an included angle and connected to each other, and a vertex angle of the first plate 110 and the second plate 120 is disposed toward the injection passage 210. Moreover, the fire hole plate 100 is provided with at least one combustion-supporting fire hole 131 and at least two main fire holes 132, the at least two main fire holes 132 are oppositely arranged along the length direction (as shown in the direction B of fig. 1) of the fire hole plate 100 at intervals, and at least one side of each main fire hole 132 is provided with one combustion-supporting fire hole 131 corresponding to the main fire hole. Wherein, along the width direction (as shown in the direction C of fig. 1) of the fire hole plate 100, the length of the main fire hole 132 is longer than that of the combustion-supporting fire hole 131, and the extending track of the main fire hole 132 extends from the first plate body 110 to the second plate body 120.

When the fire hole plate 100 of the embodiment is used, the mixed gas in the injection passage 210 flows out through the combustion-supporting fire holes 131 and the main fire holes 132 and is ignited to generate high-temperature flue gas. Wherein, first plate body 110 and second plate body 120 are the contained angle setting to, the apex angle orientation of first plate body 110 and second plate body 120 draws and penetrates the passageway 210 and set up, thereby makes the gas mixture gather together from both sides towards the middle part of fire hole board 100, guarantees that the concentration of the gas mixture of following combustion-supporting fire hole 131 and main fire hole 132 department outflow is higher, guarantees combustion efficiency. Meanwhile, at least one side of each main fire hole 132 is provided with a combustion-supporting fire hole 131 corresponding to the main fire hole in the length direction of the fire hole plate 100; in the width direction of the fire hole plate 100, the extension track of the main fire hole 132 extends from the first plate body 110 to the second plate body 120, the length of the main fire hole 132 is longer than that of the combustion-supporting fire hole 131, the flame generated by the mixed gas flowing out from the combustion-supporting fire hole 131 is shorter, the root of the flame generated by the mixed gas flowing out from the main fire hole 132 corresponding to the main fire hole can be effectively and locally heated, and the combustion efficiency can also be improved.

The vertex angles of the first plate body 110 and the second plate body 120 are arranged in the ejection channel 210 towards the direction, and the first plate body 110 and the second plate body 120 extend towards the inside of the ejection channel 210 and are connected in the vertex angles, namely, the whole fire hole plate 100 is sunken in the ejection channel 210 from the directions of two sides, so that the cross section of the whole fire hole plate 100 is in a V shape.

The extending track of the main fire hole 132 extends from the first plate 110 to the second plate 120, which means that the main fire hole 132 is not only formed on the first plate 110 but also formed on the second plate 120.

The length of the main fire holes 132 refers to the extension length of the main fire holes 132 in the width direction of the fire hole plate 100; similarly, the length of the burner ports 131 refers to the length of the burner ports 131 extending in the width direction of the burner plate 100.

At least one side of each main fire hole 132 is provided with a combustion-supporting fire hole 131 corresponding to the main fire hole, and one combustion-supporting fire hole 131 corresponds to one main fire hole 132 (i.e., one side of one main fire hole 132 is provided with one combustion-supporting fire hole 131), or one combustion-supporting fire hole 131 corresponds to two main fire holes 132 (i.e., one combustion-supporting fire hole 131 is arranged between two main fire holes 132).

The main fire holes 132 are preferably arranged axisymmetrically with respect to the junction line 150 of the first plate 110 and the second plate 120, so that the mixture can uniformly flow out of the main fire holes 132. The connecting line 150 between the first board 110 and the second board 120 is a trajectory line of the connecting portion between the first board 110 and the second board 120.

The included angle between the first plate 110 and the second plate 120 can be flexibly designed or adjusted according to actual use requirements.

The distance between the main fire hole 132 and the combustion-supporting fire hole 131 can be flexibly designed or adjusted according to actual use requirements.

Optionally, the distance between the combustion-supporting fire holes 131 and the corresponding main fire holes 132 along the length direction of the fire hole plate 100 is a; the width of the main fire hole 132 is b; wherein a is more than or equal to 1.2b and less than or equal to 1.5 b. So, the interval between the main fire hole 132 that the combustion-supporting fire hole 131 and correspond is suitable, is favorable to the burning of gas mixture, moreover, the gas mixture that flows out from combustion-supporting fire hole 131 produces the root of the flame that the gas mixture that flows out from main fire hole 132 department that short flame can be effective carries out local heating, better improvement combustion efficiency.

In addition, the arrangement between the main fire hole 132 and the combustion-supporting fire hole 131 can be flexibly designed or adjusted according to actual use requirements, and only the arrangement of the main fire hole 132 and the combustion-supporting fire hole 131 needs to be in a length-alternating form, so that the combustion of mixed gas is facilitated, and the root of flame generated by the mixed gas flowing out of the main fire hole 132 can be locally heated effectively by short flame generated by the mixed gas flowing out of the combustion-supporting fire hole 131.

As shown in fig. 1 and 2, optionally, the fire hole plate 100 is provided with at least two first fire hole groups 130 arranged at intervals in opposition to each other along the length direction of the fire hole plate 100. Wherein, each first fire hole group 130 comprises two combustion-supporting fire holes 131 and three main fire holes 132, and one combustion-supporting fire hole 131 is arranged between two adjacent main fire holes 132. In this aspect, the combustion supporting fire holes 131 are preferably designed to support combustion of the main fire holes 132 at both sides thereof. So, not only can improve the structural strength of whole fire orifice plate 100, be favorable to the mist distribution even moreover, avoid appearing the too high problem of local hot strength, be favorable to the burning of flame, the flue gas of production is also lower. In addition, in the actual use process, part of the mixed gas inevitably reaches one end of the fire hole plate 100 first and then reaches the other end of the fire hole plate 100 along the length direction of the fire hole plate 100, and by arranging at least two first fire hole groups 130 at intervals, part of the mixed gas can be blocked, so that part of the mixed gas can be enabled to flow from one end of the fire hole plate 100 to the other end of the fire hole plate 100 without being directly sprayed out, and therefore, the effect of enabling the mixed gas to be uniformly distributed is achieved. As shown in fig. 3, at least two convex hulls 221 are disposed on both sides of the injector 200, wherein the convex hulls 221 on each side of the injector 200 are disposed in one-to-one correspondence with the first fire hole groups 130. As shown in fig. 2 and 3, the convex hull 221 is provided with a flame holding groove 230, and the flame holding groove 230 has an upward opening. The support member is provided with a communication hole 143 for communicating the injection passage 210 with the flame holding groove 230, and the communication hole 143 is respectively arranged at both sides of the combustion-supporting fire hole 131 along the width direction of the fire hole plate 100. So, can form flame stabilizing groove 230 in the both sides of drawing the body 200, draw a small amount of gas mixtures in the passageway 210 and flow into in flame stabilizing groove 230 through the intercommunicating pore 143 and be lighted and burn, because the volume of flame stabilizing groove 230 is less, make the gas mixtures can not burn completely and be insufficient combustion state in flame stabilizing groove 230, unburned gas mixtures spreads to the burning-supporting fire hole 131 and main fire hole 132 department and continues to burn, thereby can promote the stability of the flame of burning-supporting fire hole 131 and main fire hole 132 department, the flame of avoiding burning-supporting fire hole 131 and main fire hole 132 department takes place to shake, the noise that the burning produced has been reduced.

The communication holes 143 are respectively disposed on both sides of the combustion-supporting fire hole 131 in the width direction of the fire hole plate 100, which means that the central axis of the communication holes 143 coincides with the central axis of the combustion-supporting fire hole 131 in the width direction of the fire hole plate 100.

As shown in fig. 2 and 3, the outer side of the convex hull 221 is further provided with a flame guide plate 223 extending upward. So, utilize to lead flame plate 223 to make the complete gas mixture of unburnt that flows out in the flame stabilizing groove 230 concentrate towards combustion-supporting fire hole 131 and main fire hole 132 department, thereby make this complete gas mixture of unburnt can be better spread to combustion-supporting fire hole 131 and main fire hole 132 department and continue to burn, further promote the stability of the flame of combustion-supporting fire hole 131 and main fire hole 132 department, the better flame of avoiding combustion-supporting fire hole 131 and main fire hole 132 department takes place to shake, the noise that effectual reduction burning produced. Wherein, the flame guide plate 223 may be a sheet or a block. The flame guide plate 223 may be integrally formed with the injection piece 220. The flame guide plate 223 can also be inclined or bent towards the fire hole plate 100, so that the mixed gas is guided better, and the mixed gas which is not completely combusted can be better diffused to the combustion-supporting fire holes 131 and the main fire holes 132 to continue combustion.

As shown in fig. 2 and 7, optionally, both ends of the fire hole plate 100 are provided with the second fire hole groups 160 located outside the main fire holes 132 and the combustion-supporting fire holes 131. The second fire hole group 160 includes a first secondary fire hole 161 and a second secondary fire hole 162, and the first secondary fire hole 161 and the second secondary fire hole 162 are spaced apart from each other. Also, the first and second sub-fire holes 161 and 162 correspond one-to-one and are symmetrically distributed about the junction line 150 of the first and second plate bodies 110 and 120. In this way, the first and second auxiliary fire holes 161 and 162 provided at intervals are provided at both ends of the fire hole plate 100, which contributes to the improvement of the structural strength of the fire hole plate 100. And, set up the second fire hole group 160 at the both ends of fire hole board 100, make the gas mixture more flow and flow towards main fire hole 132 and the combustion-supporting fire hole 131 between both ends, make the distribution of gas mixture more even, avoid appearing local temperature sensing at both ends, improve combustion performance and burning situation. The number of the second fire hole groups 160 can be flexibly adjusted or designed according to actual use conditions, and for example, the number can be one or two or more.

In addition, the position of the combustion-supporting fire holes 131 on the fire hole plate 100 can be flexibly designed or selected according to actual use requirements.

As shown in fig. 5, the extending trace of the combustion-supporting fire hole 131 optionally extends from the first plate body 110 to the second plate body 120 along the width direction of the fire hole plate 100. So for the gas mixture can be balanced flow out from the combustion-supporting fire hole 131 of the middle part of fire hole plate 100, help the gas mixture to carry out abundant burning, also make the flame that the gas mixture that flows out from combustion-supporting fire hole 131 produces shorter, can be more effective carry out the local heating to the root of the flame that the gas mixture that flows out from main fire hole 132 produced, more be favorable to improving combustion efficiency. The combustion-supporting fire holes 131 are preferably arranged in an axisymmetrical manner about the junction line 150 of the first plate body 110 and the second plate body 120, so that the mixture can uniformly flow out of the combustion-supporting fire holes 131. In addition, along the width direction of the fire hole plate 100, the distance between the combustion-supporting fire holes 131 and the main fire holes 132 can be flexibly designed or adjusted according to actual use requirements, and only the requirement that the flame generated by the mixed gas flowing out of the combustion-supporting fire holes 131 can locally heat the root of the flame generated by the mixed gas flowing out of the main fire holes 132 is met.

The extending track of the combustion-supporting fire hole 131 extends from the first plate 110 to the second plate 120, which means that the combustion-supporting fire hole 131 is not only formed on the first plate 110 but also formed on the second plate 120.

Referring to fig. 1, 2 and 4, the fire hole plates are shown in which the combustion-supporting fire holes 131 and the main fire holes 132 are arranged in groups. In another embodiment, the combustion-supporting fire holes 131 and the main fire holes 132 may not be arranged in groups, but one combustion-supporting fire hole 131 is disposed between any two adjacent main fire holes 132, and the main fire holes 132 and the combustion-supporting fire holes 131 are arranged in an alternate length manner, which is also beneficial to the sufficient combustion of the mixture, and the short flame generated by the mixture flowing out from the combustion-supporting fire holes 131 can effectively heat the root of the flame generated by the mixture flowing out from the main fire holes 132 locally, thereby improving the combustion efficiency.

The specific number of the combustion-supporting fire holes 131 and the main fire holes 132 can be flexibly designed or adjusted according to the actual use condition.

In the scheme, the structure for supporting combustion for the main fire hole is designed in a single-hole mode. As shown in fig. 6, the structure for supporting combustion for the main fire holes is designed in a double-hole manner, that is, each combustion-supporting fire hole 131 in the above scheme is replaced by a fire hole pair. Each fire hole pair comprises a third secondary fire hole 1311 and a fourth secondary fire hole 1312 which are oppositely arranged at intervals. Also, the third and fourth sub fire holes 1311 and 1312 are in one-to-one correspondence and symmetrically distributed with respect to the junction line 150 of the first and second plate bodies 110 and 120. In this way, the mixture can flexibly flow out from the third auxiliary fire hole 1311 and the fourth auxiliary fire hole 1312, so that the flame generated by the mixture is more dispersed and the combustion is sufficient. In addition, in the processing process, the third auxiliary fire hole 1311 and the fourth auxiliary fire hole 1312 are processed on the first plate body 110 and the second plate body 120 respectively in a punching mode and the like, so that the processing of the third auxiliary fire hole 1311 and the fourth auxiliary fire hole 1312 cannot interfere with the cross-connecting line 150, the combustion efficiency is ensured, the strength of the whole fire hole plate 100 cannot be influenced or damaged, and the structural strength of the fire hole plate 100 is ensured. Moreover, since the difficulty of punching the end portion of the fire hole plate 100 is high, the fire hole plate 100 is easily damaged, and when the third auxiliary fire hole 1311 and the fourth auxiliary fire hole 1312 are disposed near both ends of the fire hole plate 100, the fire hole plate 100 can be sufficiently protected from being damaged, the structural strength is high, and the combustion efficiency can be improved.

The distance between the third auxiliary fire hole 1311 and the fourth auxiliary fire hole 1312 can be flexibly adjusted or designed according to actual use conditions. Of course, the flame generated by the mixture flowing out of the third and fourth auxiliary fire holes 1311 and 1312 may locally heat the root of the flame generated by the mixture flowing out of the main fire hole 132.

The connection between the fire hole plate 100 and the injector 200 can be realized by welding, screwing or clamping.

As shown in fig. 3, the fire hole plate 100 may optionally further include two supports 140. One of the supporting members 140 is disposed on a side away from the second plate 120 and connected to the first plate 110, and the other supporting member 140 is disposed on a side away from the first plate 110 and connected to the second plate 120. So, can establish fire orifice plate 100 on the opening from the top cover for support piece 140 stretches into and draws in penetrating passageway 210, and make support piece 140's lateral wall and draw the inside wall laminating of penetrating passageway 210, adopt modes such as welding, spiro union or joint again to realize support piece 140 and drawing the body 200 be connected fixedly, and then accomplish fire orifice plate 100 and the assembly connection who draws the body 200. The supporting member 140 may be a plate, a sheet, or a strip. Of course, the fire hole plate 100 may be formed integrally with the injector 200.

As shown in fig. 3, each of the supporting members 140 further includes a horizontal portion 142 extending in a horizontal direction, and a bent portion 141 disposed toward the injection passage 210. One end of each of the two horizontal portions 142 is connected to the first plate 110 and the second plate 120, the other end of each of the two horizontal portions 142 is connected to the two bending portions 141, and the two bending portions 141 are connected to two sidewalls of the injection passage 210. So, support piece 140 extends along the horizontal direction towards the outside of fire orifice plate 100 earlier, extends towards drawing in penetrating passageway 210 again for fire orifice plate 100 is wide enough, can adapt to the installation that draws penetrating passageway 210 of bigger bore, makes the gas mixture more even in drawing penetrating passageway 210. In addition, the horizontal portion 142 may be in arc transition connection with the first plate body 110, the second plate body 120, and the bending portion 141, so that the mixed gas flows more smoothly in the injection passage 210, no dead angle occurs, and generation of vortex or turbulence is avoided. Wherein the horizontal portion 142 is disposed parallel to the horizontal plane. The bent portion 141 may extend downward perpendicular to the horizontal portion 142. Each of the horizontal portion 142 and the bent portion 141 may have a plate shape or a sheet shape. The horizontal portion 142 and the bent portion 141 may be integrally formed with the fire hole plate 100.

Alternatively, the supporting member 140, the first plate 110 and the second plate 120 are integrally formed, that is, the two bending portions 141, the two horizontal portions 142, the first plate 110 and the second plate 120 are integrally formed. Therefore, the fire hole plate 100 is convenient to manufacture and produce, and the production cost is saved.

The injection body 200 may be formed into the injection passage 210 by stamping, splicing, or the like.

As shown in fig. 3, the injection body 200 may optionally include two injection pieces 220. The two injection pieces 220 are enclosed to form an injection passage 210 with an opening, and the supporting member 140 is connected with the corresponding injection piece 220. So, establish fire orifice plate 100 on the opening from the top cover for support piece 140 stretches into and draws in penetrating passageway 210, and make support piece 140's lateral wall and the inside wall laminating of drawing penetrating piece 220 that corresponds, adopt modes such as welding, spiro union or joint again to realize support piece 140 and the drawing of corresponding penetrating piece 220 be connected fixedly, and then accomplish fire orifice plate 100 and the erection joint who draws body 200. And, two draw and penetrate piece 220 assembly and obtain drawing the ejector 220, reduced the processing degree of difficulty, be convenient for assemble.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (10)

1. The fire hole plate is used for covering an opening of an injection passage (210) of a combustor, and is characterized in that the fire hole plate (100) comprises a first plate body (110) and a second plate body (120) which are arranged at an included angle and connected with each other, and the vertex angles of the first plate body (110) and the second plate body (120) face the inside of the injection passage (210); the fire hole plate is provided with at least one combustion-supporting fire hole (131) and at least two main fire holes (132), the at least two main fire holes (132) are oppositely arranged at intervals along the length direction of the fire hole plate, and at least one side of each main fire hole (132) is provided with one combustion-supporting fire hole (131) corresponding to the main fire hole; wherein, along the width direction of the fire hole plate (100), the length of the main fire hole (132) is longer than that of the combustion-supporting fire hole (131), and the extending track of the main fire hole (132) extends from the first plate body (110) to the second plate body (120).

2. The fire hole plate according to claim 1, wherein the distance between the combustion-supporting fire holes (131) and the corresponding main fire holes (132) is a; the width of the main fire hole (132) is b; wherein a is more than or equal to 1.2b and less than or equal to 1.5 b.

3. The fire hole plate according to claim 1, wherein one combustion-supporting fire hole (131) is provided between any adjacent two of the main fire holes (132).

4. The fire hole plate according to claim 1, wherein the fire hole plate (100) is provided with at least two first fire hole groups (130) oppositely arranged at intervals along the length direction of the fire hole plate (100), each first fire hole group comprises two combustion-supporting fire holes (131) and three main fire holes (132), and one combustion-supporting fire hole (131) is arranged between two adjacent main fire holes (132).

5. The fire hole plate according to claim 1, wherein both ends of the fire hole plate (100) are provided with a second fire hole group (160) located outside the main fire hole (132) and the combustion-supporting fire hole (131), the second fire hole group (160) comprises a first auxiliary fire hole (161) and a second auxiliary fire hole (162), the first auxiliary fire hole (161) and the second auxiliary fire hole (162) are arranged at intervals, and the first auxiliary fire hole (161) and the second auxiliary fire hole (162) are in one-to-one correspondence and are symmetrically distributed about the intersection line (150) of the first plate body (110) and the second plate body (120).

6. Fire hole plate according to any of claims 1 to 5, characterized in that the extended trajectory of said combustion supporting fire holes (131) extends from said first plate body (110) to said second plate body (120).

7. The fire hole plate according to any one of claims 1 to 5, wherein each of the combustion-supporting fire holes (131) is replaced by a fire hole pair, each of the fire hole pairs comprises a third pair of fire holes (1311) and a fourth pair of fire holes (1312) which are oppositely arranged at intervals, the third pair of fire holes (1311) and the fourth pair of fire holes (1312) correspond to each other one by one and are symmetrically distributed about the intersection line (150) of the first plate body (110) and the second plate body (120).

8. The fire aperture plate of claim 1, further comprising two supports (140), one of them support piece (140) locate keep away from one side of second plate body (120) and with first plate body (110) are connected, another support piece (140) locate keep away from one side of first plate body (110) and with second plate body (120) are connected, each support piece (140) all include along horizontal direction extension horizontal part (142), and towards draw and penetrate portion of bending (141) that set up in passageway (210), two the one end of horizontal part (142) respectively with first plate body (110) and second plate body (120) are connected, two the other end of horizontal part (142) respectively with two bend portion (141) are connected, two bend portion (141) respectively with draw the both sides wall of penetrating passageway (210) to be connected.

9. The burner is characterized by comprising an injection body (200) and the fire hole plate (100) as claimed in claim 8, wherein the injection body (200) comprises two injection sheets (220), the two injection sheets (220) are arranged in an injection passage (210) with an opening in a surrounding manner, the supporting piece (140) is connected with the corresponding injection sheet (220), and the fire hole plate is covered on the opening and connected with the injection body (200).

10. The burner according to claim 9, wherein the fire hole plate is provided with at least two first fire hole groups (130) arranged at intervals oppositely along the length direction of the fire hole plate, each first fire hole group comprises two combustion-supporting fire holes (131) and three main fire holes (132), and one combustion-supporting fire hole (131) is arranged between two adjacent main fire holes (132); draw the both sides of drawing body (200) and all be equipped with two at least convex closure (221), draw every side of body (200) the convex closure (221) all with first fire hole group (130) one-to-one sets up, convex closure (221) are equipped with flame stabilizing groove (230), flame stabilizing groove (230) have ascending uncovered, support piece is equipped with and is used for the intercommunication draw penetrate passageway (210) with the intercommunicating pore (143) of flame stabilizing groove (230), intercommunicating pore (143) are followed the width direction branch of fire hole board (100) is located the both sides of combustion-supporting fire hole (131), the outside limit of convex closure (221) is equipped with the flame deflector (223) that upwards extends.

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