Burner and gas apparatus

Abstract

The present application relates to the technical field of combustion, and discloses a burner and a gas apparatus. The burner comprises a housing, a plurality of burner bars, and at least one temperature measurement device; the plurality of burner bars are arranged side by side on the housing; a flame outlet hole is formed in the top surface of each burner bar, so that a flame area is formed above the flame outlet hole; at least one burner bar is provided with a limiting support; the at least one temperature measurement device is mounted on the housing, and a measurement portion of the temperature measurement device is limited in the flame area of the corresponding burner bar by means of the corresponding limiting support.

Description

Burner and gas appliance

[0001] The present application claims priority to the Chinese patent application No. 202421257305.6, filed on June 3, 2024, with the Chinese Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of burners, in particular to a burner and a gas appliance. BACKGROUND

[0003] The gas appliance, such as a gas water heater, is a device that releases heat by burning gas to heat water flow. In the combustion process, good air and gas ratio (air-fuel ratio) needs to be maintained to achieve stable and sufficient combustion. In actual use, due to the differences in gas composition and proportion in different regions, or the phenomenon of poor exhaust caused by excessive external wind pressure, the gas water heater needs to adaptively adjust the air-fuel ratio according to these variable working conditions, so as to achieve stable and good combustion. TECHNICAL PROBLEM

[0004] The main purpose of the present application is to provide a burner, which aims to improve the accuracy of the temperature sensor in detecting the flame temperature of the burner and improve the accuracy of the air-fuel ratio adjustment. TECHNICAL SOLUTION

[0005] To achieve the above purpose, the present application provides a burner, which comprises:

[0006] a housing;

[0007] a plurality of fire rows arranged side by side in the housing, the top surface of the fire row is provided with a fire outlet to form a flame zone above the fire outlet; wherein at least one fire row is provided with a limiting support.

[0008] In an embodiment of the present application, the burner comprises at least one temperature detection device installed on the housing, and the detection part of the temperature detection device is limited in the flame zone of the corresponding fire row by the corresponding limiting support.

[0009] In an embodiment of the present application, the limiting support is fixed on one side of the length direction of the fire row.

[0010] In an embodiment of the present application, the limiting support is provided with a limiting through hole extending along the length direction of the fire row, and the temperature detection device is inserted into the limiting through hole so that the detection part extends into the corresponding flame zone.

[0011] In an embodiment of the present application, the temperature detection device further comprises a fixed part, one end of the fixed part is fixedly connected with the shell, and the other end is arranged in the limiting through hole; the detection part is arranged at one end of the fixed part away from the shell.

[0012] In an embodiment of the present application, the fixed part is in the form of a shaft body, and a boss is arranged on the outer peripheral wall of the fixed part.

[0013] In an embodiment of the present application, the shell is provided with a mounting hole corresponding to the limiting through hole, the fixed part is arranged in the mounting hole and the limiting through hole in sequence, and the boss abuts against the outer wall surface of the shell.

[0014] In an embodiment of the present application, the boss is an annular boss, and the outer diameter of the boss is greater than the hole diameter of the mounting hole, so that the boss can shield the mounting hole.

[0015] In an embodiment of the present application, the limiting support comprises a connecting plate, and the connecting plate is fixedly connected to one side of the fire grate in the length direction.

[0016] In an embodiment of the present application, the limiting support comprises a limiting plate, one end of the limiting plate is connected with the connecting plate, and the other end of the limiting plate is arranged in the width direction of the fire grate; and the limiting through hole is arranged in the limiting plate.

[0017] In an embodiment of the present application, one side of the fire grate is provided with a limiting groove, and the side of the connecting plate away from the limiting plate is provided with a first flange, and the first flange is buckled in the limiting groove, so that the limiting plate abuts against the side edge in the length direction of the fire grate.

[0018] In an embodiment of the present application, the top edge of the connecting plate is provided with a second flange, and the second flange is buckled in the top edge of the fire grate.

[0019] In an embodiment of the present application, the limiting support is an integral part.

[0020] In an embodiment of the present application, the limiting support is fixedly welded with the fire grate.

[0021] In an embodiment of the present application, the top surface of the fire grate has a main fire outlet hole and side fire outlet holes arranged on both sides of the main fire outlet hole in the width direction, a main flame area is formed above the main fire outlet hole, and side flame areas are formed above the side fire outlet holes.

[0022] In an embodiment of the present application, the detection part of the temperature detection device is located in the side flame area.

[0023] To achieve the above object, the application further provides a gas equipment, comprising a heat exchanger and the above-mentioned burner, and heat generated by the combustion of the burner is used to heat the heat exchanger. Advantages

[0024] In the burner of the technical scheme of the application, multiple fire rows are arranged side by side in the shell, the top surface of the fire row is provided with a fire outlet hole to form a flame zone above the fire outlet hole. By arranging a limiting support on at least one fire row and arranging at least one temperature detection device on the shell, the temperature detection device can be limited by the limiting support, so that the detection part of the temperature detection device can be limited by the limiting support in the flame zone of the corresponding fire row. Therefore, when the position of the fire row and the shell deviates, the detection part of the temperature detection device can still be in the flame zone of the corresponding fire row without deviation from the corresponding flame zone, so that the flame temperature can be accurately detected, the accuracy of the flame temperature detection is ensured, and the adjustment accuracy of the air-fuel ratio can be improved. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical scheme in the embodiments of the application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings shown.

[0026] Fig. 1 is a structural schematic diagram of an embodiment of the burner of the application;

[0027] Fig. 2 is a partial enlarged view of A in Fig. 1;

[0028] Fig. 3 is a structural schematic diagram of the cooperation between the shell and the temperature detection device in the embodiment of the application;

[0029] Fig. 4 is a schematic diagram of the assembly structure of the fire row and the limiting support in the embodiment of the application;

[0030] Fig. 5 is a partial enlarged view of B in Fig. 4;

[0031] Fig. 6 is a front view of the embodiment of Fig. 4;

[0032] Fig. 7 is a structural schematic diagram of the temperature detection device in the embodiment of the application.

[0033] Explanation of reference numerals:

[0034] Label name Label name 100 shell 310 connecting plate 101 mounting hole 311 first flange 200 fire 312 second flange 201 fire hole 320 limit plate 201a main fire hole 400 temperature detection device 201b side fire hole 410 detection part 202 limit slot 420 fixed part 300 limit support 430 boss 301 limit through hole

[0035] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. Embodiment of the present application

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.

[0037] It should be noted that if the present application embodiments involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement condition, etc. between components in a certain posture (as shown in the drawings), if the certain posture changes, the directional indications also change accordingly.

[0038] Meanwhile, "and / or" or "and / or" appearing throughout the text means that it includes three solutions. Taking "A and / or B" as an example, it includes A solution, or B solution, or A and B solutions.

[0039] In addition, if the present application embodiments involve "first", "second" and the like, the "first", "second" and the like are only for description purposes, and cannot be understood as indicating or implying the relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0040] The gas water heater is a device for heating water flow by releasing heat through gas combustion. In the combustion process, good air and gas ratio (air-fuel ratio) needs to be maintained to achieve stable and sufficient combustion. In the related technology, temperature sensors are used to detect flame temperature for air-fuel ratio adjustment control. However, since the temperature sensor is not associated with the fire grate, when the fire grate assembly deviates or the temperature sensor installation deviates, the temperature sensor is easy to deviate from the burner fire grate, resulting in inaccurate detection of the flame temperature, poor consistency, and adjustment error.

[0041] Therefore, the present application provides a burner applied to a gas equipment, which can associate the temperature detection device with the fire grate, so that the relative position of the temperature detection device and the fire grate is fixed, so that the detection part of the temperature detection device is located in the flame area position to be detected, to ensure the accuracy of the flame temperature detection and improve the control accuracy of the air-fuel ratio adjustment. It can be understood that the gas equipment is not limited to a specific type of equipment, such as a gas water heater, a boiler, a wall-mounted stove, etc. The burner will be described in the form of an embodiment.

[0042] As shown in FIGS. 1 and 2, the burner includes a housing 100, a plurality of fire grates 200, and at least one temperature detection device 400.

[0043] The plurality of fire grates 200 are arranged side by side in the housing 100, and the top surface of the fire grate 200 is provided with a fire outlet hole 201 to form a flame area above the fire outlet hole 201; at least one fire grate 200 is provided with a limiting support 300; and at least one temperature detection device 400 is installed on the housing 100, and the detection part 410 of the temperature detection device 400 is limited to the flame area of the corresponding fire grate 200 by the corresponding limiting support 300.

[0044] It can be understood that the housing 100 supports and installs the plurality of fire grates 200. The plurality of fire grates 200 are arranged side by side in the housing 100, and the top thereof is provided with a fire outlet hole 201. After the gas and air are mixed in the fire grate 200, they are sprayed out from the top fire outlet hole 201 and ignited to burn, so as to form a flame area above the fire outlet hole 201. In order to detect the flame temperature, at least one temperature detection device 400 is installed on the housing 100, and a limiting support 300 is arranged on at least one fire grate 200. The limiting support 300 can limit the detection part 410 of the temperature detection device 400, so that the detection part 410 is always located in the flame area of the corresponding fire grate 200, so as to accurately detect the temperature of the corresponding flame area.

[0045] It should be noted that the limiting support 300 in the embodiment is fixed on the fire row 200, and the detection part 410 of the temperature detection device 400 is limited on the limiting support 300, that is, the detection part 410 of the temperature detection device 400 is associated with the position of the fire row 200, so that when the position of the fire row 200 deviates during assembly, the limiting support 300 fixed on the fire row 200 will drive the detection part 410 of the temperature detection device 400 to deviate together, so that the relative position of the detection part 410 and the flame area of the fire row 200 does not change, thereby ensuring the consistency and stability of the flame temperature detection of the temperature detection device 400 on the fire row 200, ensuring the accuracy of the flame temperature detection, and thereby improving the adjustment accuracy of the air-fuel ratio of the burner.

[0046] In actual application, the number of fire rows 200 provided with limiting supports 300 can be determined according to actual conditions, for example, one of the fire rows 200 can be provided with a limiting support 300, several of the fire rows 200 can be provided with limiting supports 300, or all of the fire rows 200 can be provided with limiting supports 300. Correspondingly, the number and installation position of the temperature detection devices 400 can be determined according to actual conditions, for example, when all of the fire rows 200 are not opened in zones, one temperature detection device 400 can be correspondingly arranged for the limiting support 300 of one of the fire rows 200; when multiple fire rows 200 are opened in zones, one temperature detection device 400 can be correspondingly arranged in each zone, and the number and installation position of the temperature detection devices 400 are not limited herein.

[0047] In actual application, the specific structure of the limiting support 300 can be determined according to actual conditions, for example, it can be block-shaped, plate-shaped, strip-shaped, or other special-shaped structures, etc., as long as it can limit the temperature detection device 400 to limit the detection part 410 in the corresponding flame area. The limiting mode of the limiting support 300 to the detection part 410 can also be determined according to actual conditions, for example, it can be shaft hole limiting, baffle limiting, or other limiting modes, etc. The connection mode of the limiting support 300 and the fire row 200 can be welding fixing, buckle fixing, screw fixing, or other fixing modes, etc., and the specific fixing mode is not limited herein.

[0048] In actual application, the temperature detection device 400 can be a high-temperature thermocouple, a temperature sensor, etc. The temperature detection device 400 can have a probe part (i.e., the detection part 410 in the embodiment) and an electric control part (which can be built-in in the fixed part 420), wherein the probe part can be located above the fire hole 201 to detect the flame temperature of the flame area, and output the corresponding flame temperature detection signal to the corresponding control device in the gas equipment through the rear-end electric control part. The installation mode of the temperature detection device 400 and the shell 100 can adopt welding fixing, buckle fixing, screw fixing, or other fixing modes, etc.

[0049] In the burner of the technical scheme, the plurality of fire bars 200 are arranged side by side in the shell 100, and the top surface of the fire bar 200 is provided with a fire outlet hole 201 to form a flame zone above the fire outlet hole 201. By arranging the limiting support 300 on at least one fire bar 200 and arranging at least one temperature detection device 400 on the shell 100, the temperature detection device 400 can be limited with the limiting support 300, so that the detection part 410 of the temperature detection device 400 can be limited by the limiting support 300 in the flame zone of the corresponding fire bar 200, so that when the position of the fire bar 200 and the shell 100 deviates, the temperature detection device 400 can move with the fire bar 200, so that the detection part 410 of the temperature detection device 400 can still be in the flame zone of the corresponding fire bar 200 and will not deviate from the corresponding flame zone, so as to accurately detect the flame temperature, ensure the accuracy of the flame temperature detection, and improve the adjustment accuracy of the air-fuel ratio.

[0050] In an embodiment of the present application, as shown in FIGS. 1 and 2, the limiting support 300 is fixed on one side of the fire bar 200 in the length direction; and the detection part 410 is located in the flame zone on one side of the fire bar 200 in the length direction.

[0051] It can be understood that the fire outlet hole 201 is located on the top surface of the fire bar 200, and the corresponding flame zone is above the top of the fire bar 200. In the embodiment, the limiting support 300 is fixed on one side of the fire bar 200 in the length direction, which does not interfere with the fire outlet hole 201 and the flame zone, and ensures the uniformity of the flame. At the same time, the detection part 410 of the temperature detection device 400 is limited in the corresponding flame zone by the limiting support 300 on one side in the length direction, so that other parts of the temperature detection device 400 except the detection part 410 will not be directly burned by the flame, further improving the reliability of the temperature detection device 400 and prolonging the service life.

[0052] In an embodiment of the present application, as shown in FIGS. 1 and 2, the top surface of the fire bar 200 has a main fire outlet hole 201a and a side fire outlet hole 201b arranged on both sides of the main fire outlet hole 201a in the width direction, a main flame zone is formed above the main fire outlet hole 201a, and a side flame zone is formed above the side fire outlet hole 201b; and the detection part 410 of the temperature detection device 400 is located in the side flame zone.

[0053] It can be understood that the top surface of the fire row 200 is provided with side fire holes 201b on both sides of the main fire hole 201a. On the one hand, the side fire holes 201b can increase the gas outlet area of the top of the fire row 200 to make the flame more uniform. On the other hand, the side fire holes 201b can assist in combustion and stabilize the flame. In actual application, the flame temperature of the side flame area above the side fire hole 201b is lower than the flame temperature of the main flame area above the main fire hole 201a. By locating the detection part 410 of the temperature detection device 400 in the side flame area, the service life of the detection part 410 can be avoided due to the excessively high main flame temperature. Such arrangement is conducive to improving the service life of the temperature detection device 400.

[0054] In an embodiment of the present application, as shown in FIGS. 1, 2, 4 and 5, the limiting support 300 is provided with a limiting through hole 301 extending along the length direction of the fire row 200, and the temperature detection device 400 is inserted and fitted in the limiting through hole 301, so that the detection part 410 extends into the corresponding flame area.

[0055] The limiting support 300 is provided with a limiting through hole 301, and the temperature detection device 400 is inserted and fitted in the limiting through hole 301. The limiting support 300 and the temperature detection device 400 are limited by the shaft hole. It can be understood that the limiting through hole 301 corresponds to the flame area of the fire row 200 to be detected, and the axis extension line of the limiting through hole 301 can extend to the corresponding flame area. Therefore, when the temperature detection device 400 is inserted in the limiting through hole 301, the detection part 410 can extend into the corresponding flame area for detection.

[0056] It can be understood that since the temperature detection device 400 and the limiting support 300 are limited by the shaft hole, when the position of the fire row 200 deviates, the limiting support 300 can drive the temperature detection device 400 to deviate together with the fire row 200 through the limiting through hole 301, so that the detection part 410 is always in the corresponding flame area, ensuring the detection accuracy.

[0057] In an embodiment of the present application, as shown in FIGS. 2 to 5 and 7, the temperature detection device 400 further comprises a fixing part 420. One end of the fixing part 420 is fixedly connected with the shell 100, and the other end is installed in the limiting through hole 301. The detection part 410 is arranged at the end of the fixing part 420 away from the shell 100.

[0058] In the embodiment, the fixing part 420 serves to fix and install the temperature detection device 400 on the shell 100. When the fixing part 420 is inserted in the limiting through hole 301, the detection part 410 can smoothly extend into the corresponding flame area.

[0059] Specifically, as shown in FIGS. 3-7, the fixing portion 420 has a shaft structure, and a boss 430 is arranged on the outer peripheral wall of the fixing portion 420; the housing 100 is provided with a mounting hole 101 corresponding to the limiting through hole 301, and the fixing portion 420 is sequentially arranged in the mounting hole 101 and the limiting through hole 301, and the boss 430 abuts against the outer wall surface of the housing 100.

[0060] In this embodiment, the boss 430 arranged on the outer peripheral wall of the fixing portion 420 serves to abut against and limit the housing 100. During installation, the detection portion 410 and the fixing portion 420 are sequentially inserted into the mounting hole 101 and the limiting through hole 301 until the boss 430 abuts against the outer wall surface of the housing 100, thereby completing the pre-installation of the temperature detection device 400, and then the boss 430 is fixed to the housing 100 by welding, screwing or clamping.

[0061] Further, as shown in FIGS. 3 and 7, the boss 430 is an annular boss; the outer diameter of the boss 430 is greater than the hole diameter of the mounting hole 101, so that the boss 430 can block the gap between the mounting hole 101 and the fixing portion 420.

[0062] It can be understood that the outer diameter of the detection portion 410 is smaller than the outer diameter of the fixing portion 420, and the outer diameter of the fixing portion 420 is smaller than the hole diameter of the mounting hole 101. In this way, the detection portion 410 and the fixing portion 420 are more easily inserted into the mounting hole 101, thereby improving the assembly efficiency.

[0063] By setting the outer diameter of the boss 430 to be greater than the hole diameter of the mounting hole 101, when the temperature detection device 400 is installed in place, the boss 430 can completely block the mounting hole 101, so that the gap between the mounting hole 101 and the fixing portion 420 is blocked, thereby preventing external airflow from entering the combustor through the gap between the mounting hole 101 and the fixing portion 420, which affects the stability of the combustion flame of the fire grate 200.

[0064] In an embodiment of the present application, as shown in FIGS. 2, 4-6, the limiting support 300 includes a connecting plate 310 and a limiting plate 320; the connecting plate 310 is fixedly connected to one side of the fire grate 200 in the length direction; one end of the limiting plate 320 is connected to the connecting plate 310, and the other end extends away from the connecting plate 310 in the width direction of the fire grate 200; and the limiting through hole 301 is arranged on the limiting plate 320.

[0065] The structure of the limiting support 300 is illustrated in this embodiment. The connecting plate 310 serves to mount and connect the limiting plate 320 and the fire grate 200. The connecting plate 310 and the fire grate 200 can be fixed by welding or buckling. The limiting plate 320 is arranged at an angle with the connecting plate 310. One end of the limiting plate 320 is connected to the connecting plate 310, and the other end extends along the width direction of the fire grate 200. The limiting plate 320 is located on one side of the fire grate 200 in the width direction, so that the limiting through hole 301 corresponds to the flame area on one side of the fire grate 200. Therefore, the detection part 410 of the temperature detection device 400 is located at the side flame area on the top of the fire grate 200, which avoids excessively high main flame temperature and is beneficial to improving the service life of the temperature detection device 400.

[0066] Specifically, as shown in FIGS. 2, 4-6, the limiting groove 202 is arranged on one side of the fire grate 200 in the length direction. The first flange 311 is arranged on the side of the connecting plate 310 away from the limiting plate 320. The first flange 311 is buckled to the limiting groove 202, so that the limiting plate 320 abuts against the side edge of the fire grate 200 in the length direction. The second flange 312 is arranged on the top edge of the connecting plate 310 and buckled to the top edge of the fire grate 200.

[0067] In actual installation, the first flange 311 is buckled to the limiting groove 202, so that the limiting plate 320 abuts against the side edge of the fire grate 200 in the length direction, thereby limiting the limiting support 300 and the fire grate 200 in the length direction of the fire grate 200. The second flange 312 is buckled to the top edge of the fire grate 200, thereby limiting the limiting support 300 and the fire grate 200 in the height direction and the width direction of the fire grate 200. Thus, the pre-installation of the limiting support 300 and the fire grate 200 is achieved, which is more conducive to the welding and fixation of the limiting support 300 and the fire grate 200, and further improves the assembly efficiency.

[0068] In actual application, the limiting support 300 is a one-piece member. The connecting plate 310 can be formed by bending the edge of the limiting plate 320. The first flange 311 and the second flange 312 can be formed by bending the edge of the connecting plate 310. In this way, the forming process of the limiting support 300 can be simplified, and the production efficiency of the entire gas burner is further improved.

[0069] The application also provides a gas equipment. The gas equipment comprises a heat exchanger and a gas burner. The specific structure of the gas burner is described in the above embodiments. Since the gas equipment adopts all the technical solutions of the above embodiments, it has all the beneficial effects brought by the technical solutions of the above embodiments. The heat generated by the combustion of the gas burner is used to heat the heat exchanger, so as to heat the water flow in the heat exchanger and realize the function of preparing hot water.

[0070] In an embodiment, the combustion device can also be a gas water heater, a boiler, a wall-mounted furnace, and the like.

[0071] The above merely provides the embodiments of the present application, and does not limit the patent scope of the present application. Any equivalent structure transformation made by using the content of the present application specification and drawings, or direct / indirect application in other related technical fields under the inventive concept of the present application is included in the patent protection scope of the present application.

Claims

1. A burner, wherein, The burner comprises: a housing; a plurality of fire rows arranged side by side in the housing, the top surface of the fire rows being provided with fire holes to form a flame zone above the fire holes; wherein at least one of the fire rows is provided with a limiting support; and at least one temperature detection device installed on the housing, the detection part of the temperature detection device being limited in the flame zone of the corresponding fire row by the corresponding limiting support.

2. The burner of claim 1, wherein, The limiting support is fixed on one side in the length direction of the fire row.

3. The burner of claim 1 or 2, wherein, The limiting support is provided with a limiting through hole extending in the length direction of the fire row, and the temperature detection device is inserted into the limiting through hole so that the detection part extends into the corresponding flame zone.

4. The burner of claim 3, wherein, The temperature detection device further comprises a fixed part, one end of the fixed part being fixedly connected with the housing and the other end being provided through the limiting through hole; and the detection part is arranged at the end of the fixed part away from the housing.

5. The burner of claim 4, wherein, The fixed part is in the form of a shaft body, and a boss is arranged on the outer peripheral wall of the fixed part; The housing is provided with a mounting hole corresponding to the limiting through hole, the fixed part is sequentially provided through the mounting hole and the limiting through hole, and the boss abuts against the outer wall surface of the housing.

6. The burner of claim 5, wherein, The boss is an annular boss, and the outer diameter of the boss is greater than the hole diameter of the mounting hole, so that the boss can shield the mounting hole.

7. A burner as claimed in any one of claims 3 to 6 wherein, The limiting support comprises: a connecting plate fixedly connected to one side in the length direction of the fire row; and a limiting plate connected to one end of the connecting plate and extending in the width direction of the fire row; and the limiting through hole is arranged in the limiting plate.

8. The burner of claim 7, wherein, One side of the fire row is provided with a limiting groove, and the side away from the limiting plate of the connecting plate is provided with a first flange, and the first flange is buckled in the limiting groove so that the limiting plate abuts against the side edge in the length direction of the fire row. The top edge of the connecting plate is provided with a second flange, and the second flange is buckled in the top edge of the fire row.

9. The burner of any one of claims 1 to 6, wherein, The limiting support is an integral part; and / or the limiting support is welded to the fire row.

10. The burner of any one of claims 1 to 6, wherein, The top surface of the fire row has a main fire hole and side fire holes arranged on both sides of the main fire hole in the width direction, the top of the main fire hole forms a main flame zone, and the top of the side fire hole forms a side flame zone. The detection part of the temperature detection device is located in the side flame zone.

11. A gas appliance wherein, The burner comprises a heat exchanger and a burner as claimed in any one of claims 1 to 10, and the heat generated by the combustion of the burner is used to heat the heat exchanger.

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