CN217423243U - Burner with a burner head - Google Patents

Abstract

The utility model provides a burner. This combustor includes distributor and fire lid, and fire lid buckle closure is on distributor, and fire lid and distributor surround and form the gas mixing chamber, are provided with a plurality of fire grooves with the gas mixing chamber intercommunication on the lateral wall of gas mixing chamber, and a plurality of fire grooves are arranged along the circumference direction dispersion of gas mixing chamber, its characterized in that, and the bottom surface of fire lid is spaced apart from the top surface of distributor and is formed the flame stabilizing groove, and flame stabilizing groove and gas mixing chamber intercommunication, flame stabilizing groove stride across two at least in a plurality of fire grooves along the circumference direction. In this scheme, mix the mixed gas in the gas chamber and carry after flame stabilizing groove department, form continuous flame in flame stabilizing groove department, continuous flame is simultaneously stabilized a plurality of discrete main flames that a plurality of flame grooves produced, can avoid the unstable condition of flame stabilizing that local gas mixture is inhomogeneous or the gas flow rate difference leads to like this to realize better flame stabilizing effect.

Description

Burner with a burner head

Technical Field

The utility model relates to a cooking utensil technical field specifically, relates to a combustor.

Background

Gas cookers are commonly used household range products. Usually, a burner is provided on the gas range. Inside the burner, the fuel and air are mixed in a certain manner, ejected from the fire hole of the burner and burned.

In order to ensure the stability of the combustion of the burner, a gas mixing chamber is usually arranged in the burner. The gas mixing chamber is generally formed by surrounding a fire distributor and a fire cover, and the gas and the air are fully mixed in the gas mixing chamber, then are conveyed to fire holes, and are ignited at the fire holes.

However, in the actual use process, the flow rate of the fuel gas is difficult to be ensured to be always in a stable state. When the flow rate of the fuel gas is unstable or too high, the flame after combustion is easy to jump at a fire hole, even the conditions of flame separation, fire extinguishment and the like occur, and great potential safety hazards are caused.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems occurring in the prior art, according to an aspect of the present invention, a burner is provided. This combustor includes distributor and fire lid, and fire lid buckle closure is on distributor, and fire lid and distributor surround and form the gas mixing chamber, are provided with a plurality of fire grooves with the gas mixing chamber intercommunication on the lateral wall of gas mixing chamber, and a plurality of fire grooves are arranged along the circumference direction dispersion of gas mixing chamber, its characterized in that, and the bottom surface of fire lid and the top surface interval of distributor form the steady flame groove, and steady flame groove and gas mixing chamber intercommunication, steady flame groove stride across two at least in a plurality of fire grooves along the circumference direction.

In this scheme, form the flame holding groove through the bottom surface with the fire lid and the top surface interval of distributor to the flame holding groove stridees across a plurality of fire grooves along the circumferential direction, therefore this a plurality of fire grooves can share same flame holding groove. Mix the mixed gas in the gas chamber and carry steady flame groove department back, form continuous flame in steady flame groove department, continuous flame stabilizes a plurality of discrete main flames that a plurality of flame banks produced simultaneously, can avoid the unstable condition of steady flame that local gas mixture is inhomogeneous or the gas flow rate difference leads to like this to realize better steady flame effect. Moreover, compared with the scheme of arranging the flame stabilizing holes for each main flame in the prior art, the utility model can reduce the processing difficulty by forming the slender flame stabilizing grooves by spacing the bottom surface of the fire cover and the top surface of the fire distributor, and particularly, the processing of the independent flame stabilizing holes for each main flame not only can lead to the complex structure, but also needs to consider the consistency of the flame stabilizing holes (including the consistency of the position and the size relative to each flame stabilizing groove), and the requirements of the processing precision are higher; and the utility model discloses in a plurality of fire grooves can share a flame stabilizing groove, can simplify the structure of combustor on the one hand, on the other hand can reduce the requirement to the machining precision to reduce manufacturing cost.

Illustratively, the distributor includes a bottom wall and side walls extending upwardly from edges of the bottom wall, and a plurality of fire slots are provided in the side walls. Like this, can be so that the structure of fire lid simpler, the fire lid is covered at the top of distributor, is located the top of combustor, therefore daily needs clearance, and the simple structure of fire lid can reduce the clearance degree of difficulty.

Illustratively, the upper surface of the side wall is recessed downwards to form a plurality of fire grooves. Like this, the structure of distributor is simpler, and the production degree of difficulty is low. Because the top of the fire groove is directly communicated to the flame stabilizing groove, the combustion area of the fire groove is larger, and the firepower of the combustor is stronger. And moreover, the connectivity of the fire groove and the flame stabilizing groove is further improved, and the flame stabilizing effect is better.

Exemplarily, the gas mixing chamber is internally provided with a supporting part higher than the side wall, and the fire cover is supported on the supporting part. Because the vertical height of supporting part is higher than the side wall, lead to having the gap between side wall and the fire lid, this gap forms the flame stabilizing groove, and structural design is simple reasonable.

Illustratively, the supporting part is a plurality of, and a plurality of supporting parts are along the spaced apart setting of lateral wall. Thus, the fire cover can be supported more stably.

Illustratively, the support portion is spaced from the air inlet of the distributor and the support portion is connected to the sidewall. The supporting parts are connected with the side walls, so that an air distributing cavity can be formed between the two adjacent supporting parts. It can be understood that the gas enters into the gas mixing chamber through the air inlet and is dispersed all around, and the gas collides the supporting part and disperses each less gas distribution chamber and can form the turbulent flow, so that the gas in each less gas distribution chamber is more stable. Stable gas in the gas distribution cavity is directly conveyed to the fire groove and the flame stabilizing groove for combustion, so that stable and uniform flame can be formed, and the combustion process is more stable and the combustion is more sufficient.

Illustratively, the fire grooves are not arranged on the connecting parts of the side walls, which are connected with the supporting parts, and the top surfaces of the connecting parts are lower than the top surfaces of the side walls. The vertical height of the flame stabilizing groove is properly increased at the position where the flame groove is not arranged, so that the flame stabilizing flame at the position can be properly increased, the combustion stability of the flame stabilizing flame at the position is ensured, and the phenomenon of flameout at the position due to unstable air flow is avoided. Moreover, the flame stabilizing flame at the connecting part is increased, so that the firepower at each part of the distributor is balanced, and the heating intensity around the burner is ensured to be more uniform.

Illustratively, the support portion includes a base and a support platform disposed on the base, the base being connected to the connecting portion, the base being lower than the connecting portion, and the support platform being spaced from the connecting portion, the fire lid being supported on the support platform. The base is less than coupling part, and the gas can flow in the top of base to in entering into the clearance between coupling part's top surface and the fire lid, further guarantee the stability of this clearance department air current, avoid appearing flame-out phenomenon.

Illustratively, the plurality of fire slots includes a plurality of first fire slots and a plurality of second fire slots interspersed among the plurality of first fire slots, each of the plurality of first fire slots has a vertical height greater than that of each of the plurality of second fire slots, and the connecting portion is located between adjacent two of the second fire slots. The connecting part is arranged between the two second fire grooves, namely flame-stabilizing flames at the connecting part are beneficial to ensuring the continuity of the flames between the two smaller main flames so as to be beneficial to keeping the flames to have good shapes. And, because the vertical height of second fire groove is lower, the connectivity between second fire groove and the coupling part is better, and the flame in the flame stabilizing groove at coupling part top is leading-in to the second fire inslot more easily, and then guarantees the flame stabilizing effect.

Exemplarily, a part of side wall is sunken and is formed the installation cavity towards the inside of distributor, and the ignition needle stretches into in the installation cavity, is provided with a plurality of flame stabilizing fire grooves on the installation cavity, and a plurality of flame stabilizing fire grooves are around ignition needle dispersion arrangement. Therefore, during the ignition process of the ignition needle, any one of the flame stabilizing grooves surrounding the ignition needle has stable gas transmission flow, and the ignition can be completed, so that the ignition efficiency is higher. And the installation cavity is formed by the side wall sinking towards the inside of the fire distributor, so that the installation cavity is better in connectivity with the air mixing chamber and the installation cavity and the outside air, and the ignition needle is easier to ignite.

Illustratively, the side wall includes an outer side wall having a notch and an inner side wall recessed inwardly from both ends of the outer side wall at the notch, the outer side wall and the inner side wall together forming a side wall of the air mixing chamber, and the inner side wall forming a side wall of the mounting cavity. Therefore, the arrangement of the outer side wall and the inner side wall can ensure the tightness of the gas mixing chamber and the gas mixing efficiency. The inner wall can make the ignition needle can install in the installation intracavity better, reduces the mistake of hitting the ignition needle and bumps, has more the practicality.

Illustratively, the inner side walls include a first side wall, a second side wall, and a third side wall, the first side wall and the second side wall extending from both ends of the outer side wall toward the interior of the distributor, respectively, the first side wall having a first outer end connected with the outer side wall and a first inner end located within the outer side wall, the second side wall having a second outer end connected with the outer side wall and a second inner end located within the outer side wall, the third side wall being connected between the first inner end and the second inner end. Therefore, the connection stability of the inner side wall and the outer side wall can be further ensured, and the airtightness of the installation cavity is ensured.

Illustratively, the plurality of flame holding grooves includes a first flame holding groove disposed on the first side wall, a second flame holding groove disposed on the second side wall, and a third flame holding groove disposed on the third side wall. Therefore, the flame stabilizing fire grooves are formed in the plurality of directions around the ignition needle, the ignition needle ignites the gas in the flame stabilizing fire grooves in any one direction, ignition can be completed, and the ignition efficiency is higher.

Illustratively, the first flame holding groove is recessed downward from the top surface of the first side wall and extends from a middle portion of the first side wall to the first outer end; and/or the second flame stabilizing fire trough is sunken downwards from the top surface of the second side wall and extends from the middle part of the second side wall to the second outer end; and/or the third flame stabilizing fire trough is sunken downwards from the top surface of the third side wall and is arranged in the middle of the third side wall. Therefore, the flame stabilizing fire grooves are formed in the plurality of directions around the ignition needle, the ignition needle ignites the gas in the flame stabilizing fire grooves in any one direction, ignition can be completed, and the ignition efficiency is higher.

Illustratively, the fire cover is supported on a side wall of the mounting cavity. Thus, one support portion can be omitted, making the structure simpler.

Illustratively, the fire cover covers the mounting cavity, and the ignition needle is positioned below the fire cover. Therefore, the ignition needle is positioned in the installation cavity, the top of the ignition needle can be surrounded by the fire cover, the ignition needle is better protected, and the damage caused by mistaken collision or oil stain and other dripping splashing during cleaning of the combustor is prevented. Even if the phenomenon of overflowing occurs, the ignition needle can be protected from being polluted.

Exemplarily, be equipped with in the gas mixing chamber and exceed the supporting part of side wall, the fire lid supports on the lateral wall and the supporting part of installation cavity, and the middle zone of the bottom surface of fire lid is provided with annular or circular shape boss, and the boss is located the radial inboard of the lateral wall of supporting part and installation cavity and supports the lateral wall that leans on supporting part and installation cavity. Like this, the steadiness of the support of covering to the fire can be guaranteed in the setting of supporting part, lateral wall. And the setting of the counterbalance of boss and supporting part and lateral wall can play limiting displacement to the fire lid, further promotes the steadiness that fire lid and distributor are connected.

Illustratively, the plurality of fire slots includes a plurality of first fire slots and a plurality of second fire slots alternately arranged, and a vertical height of each of the plurality of first fire slots is greater than a vertical height of each of the plurality of second fire slots. Thus, the vertical heights of the fire holes are alternated, and the combustion area of the burner is increased in the vertical direction. And the first fire groove and the second fire groove that set up in turn more are favorable to the replenishment of the secondary air of the great first fire groove of vertical height, and then guarantee combustion efficiency.

Illustratively, the vertical height of the flame holding groove is between 0.5mm and 1 mm. Therefore, the flame stabilizing effect of the flame stabilizing groove can be ensured, excessive space in the vertical direction is not occupied, and the overall height of the combustor is reduced.

Illustratively, the flame holding groove is annular. Thus, the flame stabilizing grooves arranged in an annular shape can ensure the flame stabilizing effect in all directions.

Illustratively, a plurality of flame pockets are in communication with the flame holding pocket. Therefore, the connectivity between the fire groove and the flame stabilizing groove is better, and the flame transfer process is more stable and efficient.

Illustratively, the peripheral edge of fire lid extends downwards and forms the eaves, has the clearance between eaves and the lateral wall of distributor, and the flame stabilizing slot communicates with the outside through the clearance. Thus, the flame in the fire distributor is inclined downwards under the action of the eave. The flame can be better guided to the fire groove, and the flame stabilizing effect is ensured.

Illustratively, the combustor further includes a thermocouple located below the eave. In this way, the flame in the fire box can maintain the temperature at the thermocouple. The arrangement of the eaves can lead flame in the flame stabilizing groove to the periphery of the thermocouple, so that the stability of the thermocouple for fire protection is further ensured, and the occurrence of accidental flameout and the like is reduced.

Exemplarily, still include the combustor seat, the combustor seat has the gas transmission room, and the gas transmission room is through air inlet and the gas mixing chamber intercommunication of distributor, and wherein the distributor is installed in the combustor seat, is equipped with a plurality of spacing portions along the spaced apart setting of circumferential direction in the gas transmission room, and the distributor is equipped with a plurality of spacing adaptation portions that cooperate with a plurality of spacing portions one-to-one. During installation, the installation of the distributor and the burner seat and the communication between the gas transmission chamber and the gas inlet can be realized only by aligning the limit adapting part of the burner to the limit part. The installation process is simple and efficient, and the installation cost is low.

Exemplarily, the combustor still includes the ignition needle, is equipped with the ignition needle installation department on the combustor seat and outside the gas transmission room, and the lower extreme of ignition needle is installed to the ignition needle installation department, is equipped with the through-hole on the distributor, and the ignition needle passes the through-hole, and the upper end of ignition needle is located the outside of gas mixing chamber. The ignition needle is arranged in the ignition needle mounting part, so that the mounting stability of the ignition needle can be ensured.

Illustratively, the burner seat is provided with a thermocouple mounting part outside the gas transmission chamber, and the burner further comprises a thermocouple detachably mounted in the thermocouple mounting part. The thermocouple installation part can ensure the installation stability of the thermocouple. Thermocouple detachably sets up, need not to dismantle the combustor and can dismantle the thermocouple from the thermocouple installation department, and the dismantlement process is simple, and the after-sale maintenance of being more convenient for is changed promptly.

A series of concepts in a simplified form are introduced in the disclosure, which will be described in further detail in the detailed description section. The present disclosure is not intended to be limited to the details of construction and the arrangement of components which are essential to the practice of the invention, nor is it intended to be used as an aid in determining the scope of the practice of the invention.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings embodiments of the present invention and the description thereof for the purpose of illustrating the principles of the invention. In the drawings there is shown in the drawings,

fig. 1 is a perspective view of a burner according to an exemplary embodiment of the present invention;

fig. 2 is a cross-sectional view of a burner according to an exemplary embodiment of the present invention;

fig. 3 is another angled cross-sectional view of a burner according to an exemplary embodiment of the present invention;

FIG. 4 is a perspective view of a distributor and fire cover according to an exemplary embodiment of the present invention;

fig. 5 is a perspective view of a fire divider according to an exemplary embodiment of the present invention;

fig. 6 is a front view of a fire divider according to an exemplary embodiment of the present invention;

FIG. 7 is a partial enlarged view of portion A of FIG. 5; and

fig. 8 is a perspective view of a burner block according to an exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a fire divider; 102. a bottom wall; 110. a side wall; 111. an outer side wall; 112. an inner side wall; 113. a first side wall; 113a, a first outer end; 113b, a first inner end; 114. a second side wall; 114a, a second outer end; 114b, a second inner end; 115. a third side wall; 120. a fire trough; 121. a first fire trough; 122. a second fire trough; 130. a mounting cavity; 131. a side wall; 132. a through hole; 140. a flame stabilizing fire trough; 141. a first flame stabilizing fire trough; 142. a second flame stabilizing fire trough; 143. a third flame stabilizing fire trough; 150. a gas mixing chamber; 151. a gas distribution cavity; 160. a support portion; 161. a base; 162. a support table; 170. an air inlet; 180. a connecting portion; 190. a limit adapting part; 200. a fire cover; 210. a boss; 220. eaves; 300. a flame stabilizing groove; 400. an ignition needle; 500. a thermocouple; 600. a burner seat; 610. a gas transmission chamber; 620. a limiting part; 630. an ignition needle mounting portion; 640. and a thermocouple mounting part.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The embodiment of the utility model provides a combustor. Referring to fig. 1 and 2 in combination, the burner may include a distributor 100 and a fire cover 200. The fire cover 200 may be snapped onto the fire divider 100 such that the fire cover 200 and the fire divider 100 enclose to form the air mixing chamber 150. The gas mixing chamber 150 may be disposed in the distributor 100. For example, the top surface of the distributor 100 may be provided with a downwardly concave lower groove, and the fire cover 200 covers the distributor 100, covering the opening of the lower groove, to form the air mixing chamber 150. The gas mixing chamber 150 may be provided in the distributor 100 and the fire cover 200. The top surface of the distributor 100 may be provided with a downwardly concave lower groove, and the bottom surface of the fire cover 200 may be provided with an upwardly concave upper groove, and the fire cover 200 is snap-fitted over the distributor 100, and the upper groove and the lower groove together form the air mixing chamber 150. The air mixing chamber 150 may be provided only in the fire cover 200. The bottom surface of the fire cover 200 may be provided with an upper groove depressed upward, the fire cover 200 is snap-fitted over the distributor 100, and an opening of the upper groove is covered by the distributor 100, thereby forming the gas mixing chamber 150. The gas mixing chamber 150 can prolong the mixing time of the gas, so that the gas is mixed more fully, and the combustion efficiency is improved. Illustratively, the distributor 100 and the fire cover 200 may each be circular and coaxially disposed.

The side wall of the gas mixing chamber 150 may be provided with a plurality of fire slots 120 communicating with the gas mixing chamber 150. The plurality of fire slots 120 are dispersedly arranged along the circumferential direction of the air mixing chamber 150. Illustratively, the plurality of fire slots 120 may be uniformly arranged along the circumferential direction of the gas mixing chamber 150. Alternatively, the plurality of fire slots 120 may be substantially distributed in several sections along the circumferential direction of the plenum 150, and the fire slots 120 may be uniformly arranged in each section. These fire slots 120 may be provided on the distributor 100. Alternatively, the fire slot may be provided on the fire cover 200. Alternatively, a portion of the fire slot may be provided on the distributor 100 and another portion may be provided on the fire cover 200. For example, each fire slot may be formed by the distributor 100 and the fire cover 200 together.

The bottom surface of the fire cover 200 is spaced apart from the top surface of the side wall 110 and is formed with a flame holding groove 300. The flame holding tank 300 is in communication with the gas mixing chamber 150. The flame holding tank 300 may be positioned above the fire tank 120. Optionally, the flame holding groove 300 may also be positioned below the fire groove 120. Illustratively, the flame holding groove 300 may be one, and is annularly disposed between the bottom surface of the fire cover 200 and the top surface of the sidewall 110. Thus, the flame stabilizing grooves arranged in an annular shape can ensure the flame stabilizing effect in all directions. Alternatively, the flame holding groove may be plural, and the plural flame holding grooves are spaced apart from each other in a circumferential direction of the fire cover 200. In any case, the flame holding groove 300 spans at least two of the plurality of fire grooves 120 in the circumferential direction of the gas mixing chamber 150. That is, some or all of the plurality of flame grooves 120 may share one flame holding groove 300. The flame holding groove 300 is substantially an elongated slit extending in the circumferential direction. If the main flame in the fire slot 120 goes out or leaves the flame, the flame in the flame holding slot 300 can be rapidly transmitted to the fire slot 120, the fuel gas at the fire slot 120 is ignited, and the main flame can be held and held in the main flame combustion process, therefore, the combustion stability of the burner can be ensured, and the safety is higher.

The mixture of the gas and the air enters the gas mixing chamber 150 from the gas inlet 170 of the distributor 100 to be fully mixed, and the mixed gas can be guided to the fire groove 120 and the flame stabilizing groove 300 to be combusted. It will be understood by those skilled in the art that the flame holding grooves 300 are formed to be located mainly at the root of the main flame formed by the flame holding grooves 120, so that the main flame generated by the flame holding grooves 120 can be stabilized to avoid the flame, and therefore, the flame holding grooves 300 and the flame holding grooves 120 should be kept at a proper distance and not too large. In this case, the flame holding groove 300 is formed by spacing the bottom surface of the fire cover 200 and the top surface of the distributor 100, and the flame holding groove 300 spans the plurality of flame holding grooves 120 in the circumferential direction, so that the plurality of flame holding grooves 120 can share the same flame holding groove 300. After the mixed gas in the gas mixing chamber 150 is conveyed to the flame holding groove 300, continuous flame is formed at the flame holding groove 300, and the continuous flame simultaneously stabilizes a plurality of discrete main flames generated by the plurality of flame holding grooves 120, so that the unstable condition of the flame holding flame caused by uneven local gas mixing or different gas flow rates can be avoided, and a better flame holding effect can be realized. Moreover, compared with the prior art in which a flame stabilizing hole is provided for each main flame, the present invention can reduce the processing difficulty by forming the elongated flame stabilizing groove 300 by spacing the bottom surface of the fire cover 200 and the top surface of the fire distributor 100, and in particular, processing an independent flame stabilizing hole for each main flame not only results in a complex structure, but also needs to consider the consistency of these flame stabilizing holes (including the consistency of the position and size of each flame stabilizing hole), which all have higher processing precision requirements; and the utility model discloses in a plurality of fire grooves can share a flame stabilizing groove, can simplify the structure of combustor on the one hand, on the other hand can reduce the requirement to the machining precision to reduce manufacturing cost.

Illustratively, the distributor 100 may include a bottom wall 102 and side walls 110 extending upwardly from the edges of the bottom wall 102, as shown in FIGS. 2-3. The fire grooves 120 may be provided on the side walls 110. The fire cover 200 may not be provided with any fire grooves. Like this, can make the structure of fire lid 200 simpler, fire lid 200 covers at the top of distributor 100, is located the top of combustor, therefore daily needs clearance, and the simple structure of fire lid 200 can reduce the clearance degree of difficulty.

Illustratively, the fire slot 120 may be in communication with the flame holding slot 300. Thus, the connectivity between the fire slot 120 and the flame stabilizing slot 300 is better, and the process of flame transfer is more stable and efficient. Alternatively, in an embodiment not shown, the flame holding groove may be spaced apart from the flame holding groove to ensure that the flame in the flame holding groove can be transferred to the flame holding groove.

Illustratively, referring to fig. 1 and 5 in combination, the upper surface of the sidewall 110 is recessed downward to form a fire trough 120. The fire slot 120 is directly communicated with the upper flame holding groove 300. Thus, the structure of the fire distributor 100 is simpler and the production difficulty is low. Since the top of the fire groove 120 directly penetrates to the flame holding groove 300, the combustion area of the fire groove 120 is larger, and the firepower of the burner is stronger. Moreover, the connectivity between the fire groove 120 and the flame stabilizing groove 300 is further improved, and the flame stabilizing effect is better.

For example, referring to fig. 5, the fire slots 120 may include a plurality of first fire slots 121 and a plurality of second fire slots 122 alternately arranged. Each of the plurality of first fire slots 121 may have a vertical height greater than that of each of the plurality of second fire slots 122. The plurality of first fire grooves 121 and the plurality of second fire grooves 122 may be alternately arranged, that is, the vertical heights of the fire holes are alternately arranged, so that the combustion area of the burner is increased in the vertical direction. And, the first fire groove 121 and the second fire groove 122 that set up in turn more are favorable to the replenishment of the secondary air of the great first fire groove 121 of vertical height, and then guarantee combustion efficiency.

For example, a supporting portion 160 higher than the sidewall 110 may be disposed in the air mixing chamber 150, and the fire cover 200 is supported on the supporting portion 160. Because the vertical height of the supporting part 160 is higher than that of the side wall 110, a gap is formed between the side wall 110 and the fire cover 200, the gap forms a flame stabilizing groove 300, and the structural design is simple and reasonable. Specifically, the support part 160 has a lower end connected to the distributor 100 and an upper end higher than the top surface of the sidewall 110 to serve as a support end. The bottom surface of the fire lid 200 is supported on the supporting end of the supporting part 160, and the position of the fire lid 200 can be stabilized. Further, the connection end of the support part 160 to the distributor 100 may be located on the bottom wall of the air mixing chamber 150. Or, the connecting end may also be located on the side wall of the side wall and extend toward the top wall of the side wall. Or the connecting end can be arranged on the top wall of the side wall and extends upwards.

In other embodiments, not shown, the bottom surface of the fire lid may be provided with legs that rest on the distributor such that a gap is formed between the bottom surface of the fire lid and the top surface of the distributor. There are many ways to space the bottom surface of the fire cover from the top surface of the distributor, and one skilled in the art can select as desired.

For example, the supporting portion 160 may be a plurality of supporting portions 160, and the plurality of supporting portions 160 are spaced apart along the sidewall 110. In this way, more stable support of the fire cover 200 can be ensured. Preferably, the number of the supporting parts may be 3 or more, and they may be the same or different in distance from each other. The three support parts can form triangular supports for the fire cover 200, and therefore stability of the supports is improved.

Illustratively, referring to fig. 5, the support 160 is spaced apart from the air inlet 170 of the distributor 100, and the support 160 is connected to the side wall 110. The connection of the support portions 160 to the sidewall 110 may form a gas-separating chamber 151 between two adjacent support portions. It can be understood that the gas enters the gas mixing chamber 150 through the gas inlet 170 and is dispersed all around, and the gas collides with the supporting portion 160 and is dispersed into each of the smaller gas distribution chambers 151 to form turbulence, so that the gas in each of the smaller gas distribution chambers 151 is more stable. The stable gas in the gas distribution chamber 151 is directly conveyed to the fire groove 120 and the flame stabilizing groove 300 for combustion, so that stable and uniform flame can be formed, and the combustion process is more stable and the combustion is more sufficient. The distributor may be provided with any number of supports. Further, as can be seen in fig. 5, 3 supports 160 can be provided within the distributor 100, and there is an inwardly recessed inner sidewall 112 within the distributor 100. Thus, the support part 160 and the inner wall 112 form 4 air distributing cavities 151 in the air mixing chamber 150, and the air distributing effect is better.

For convenience of description, a portion of the sidewall 110 connected with the support part 160 will now be referred to as a connection part 180. Illustratively, referring to fig. 5, the fire slots 120 are not provided on the connection portion 180. The support part 160 is provided for the aforementioned purpose of forming the small minute air-separating chamber 151 and for the purpose of providing support for the fire lid 200. However, the arrangement of the supporting portion 160 may affect the airflow direction at the position, if a fire slot like the fire slot 120 is arranged at the position, the flame generated by the fire slot at the position may be obviously different from the flame generated by the fire slot 120 at other positions, and therefore, the overall flame of the burner may be more uniform without arranging the fire slot at the connecting portion 180. The top surface of the connection portion 180 is lower than the top surface of the sidewall 110, as shown in fig. 7. Thus, a gap between the top surface of the connection portion 180 and the fire cover 200, at which the flame holding groove 300 may be formed, communicates with the gas mixing chamber 150, that is, the vertical height of the flame holding groove 300 at the connection portion 180 is greater than that at other portions. The vertical height of the flame stabilizing groove 300 is properly increased at the position where the flame groove is not arranged, so that the flame stabilizing flame at the position can be properly increased, the combustion stability of the flame stabilizing flame at the position is ensured, and the phenomenon of flameout at the position due to unstable air flow is avoided. Moreover, the flame holding flame at the connecting part 180 is increased, so that the firepower at each part of the distributor 100 is balanced, and the heating intensity around the burner is ensured to be more uniform.

Illustratively, referring to fig. 4 and 5 in combination, the support 160 may include a base 161 and a support platform 162 disposed on the base 161. The base 161 is connected to the connection portion 180, the base 161 is lower than the connection portion 180, and the support table 162 is spaced apart from the connection portion 180. The base 161 may mainly form the gas separation chamber 151. The fire lid 200 is supported on the support table 162. The base 161 is lower than the connecting part 180, and the fuel gas can flow into the upper part of the base 161 and enter the gap between the top surface of the connecting part 180 and the fire cover 200, so that the stability of the air flow at the gap is further ensured, and the phenomenon of flameout is avoided.

Illustratively, the fire slots 120 may include a first fire slot 121 and a second fire slot 122. Wherein the first fire grooves 121 and the second fire grooves 122 may be both plural, and the plural second fire grooves 122 may be interspersed among the plural first fire grooves 121. Each of the plurality of first fire slots 121 has a vertical height greater than that of each of the plurality of second fire slots 122. This ensures that the first fire slot 121 has sufficient secondary air make-up to ensure the combustion efficiency of the burner. The connecting portion 180 is located between two adjacent second fire grooves 122 as shown in fig. 5-6. Since the area where the connection part 180 is located is provided with only the flame holding groove 300 and not the fire groove 120, only a flame holding flame is formed here at the time of combustion. The positioning of the connecting portion 180 between the two second fire slots 122, i.e., where the flame holding flame is between the two smaller main flames, is advantageous for ensuring the continuity of the flame, which is advantageous for maintaining the flame to have a good shape. Moreover, because the vertical height of the second fire groove 122 is lower, the connectivity between the second fire groove 122 and the connecting part 180 is better, and the flame in the flame stabilizing groove at the top of the connecting part 180 is easier to be guided into the second fire groove 122, thereby ensuring the flame stabilizing effect.

Illustratively, the vertical height of the flame holding tank 300 may be between 0.5mm and 1 mm. Thus, the flame stabilizing effect of the flame stabilizing groove 300 can be ensured, and the whole height of the burner can be reduced without occupying too much space in the vertical direction.

Illustratively, referring to FIG. 5, a portion of the side wall 110 is recessed toward the interior of the distributor 100 and forms a mounting cavity 130. Ignition needle 400 extends into mounting cavity 130. The mounting cavity 130 is provided with a plurality of flame holding grooves 140, and the plurality of flame holding grooves 140 are dispersedly arranged around the ignition needle 400. It can be understood that during the ignition process of the ignition needle 400, any one of the plurality of flame holding grooves 140 surrounding the ignition needle 400 with a stable gas flow can complete the ignition, and thus the ignition efficiency is higher. In addition, the mounting cavity 130 is formed by the sidewall 110 being recessed toward the inside of the distributor 100, so that the connectivity between the mounting cavity 130 and the air mixing chamber 150 and between the mounting cavity 130 and the outside air is better, and the ignition needle 400 is easier to ignite.

Illustratively, with combined reference to fig. 1, 2 and 5, the fire lid 200 may be supported on the side wall 131 of the mounting chamber 130. Thus, one support portion can be omitted, making the structure simpler. Further, a supporting portion 160 higher than the side wall 110 may be disposed in the air mixing chamber 150, and the fire cover 200 may be supported on the side wall 131 of the installation cavity 130 and the supporting portion 160. The middle region of the bottom surface of the fire cover 200 may be provided with a ring-shaped or circular boss 210, and the boss 210 is located radially inward of the supporting part 160 and the sidewall 131 of the mounting chamber 130 and abuts against the supporting part 160 and the sidewall 131 of the mounting chamber 130. Thus, the support part 160 and the side wall 131 are provided to secure the stability of the support of the fire cover 200. And, the setting of the counterbalance of boss 210 and supporting part 130 and lateral wall 131 can play the limiting effect to fire lid 200, further promotes the steadiness that fire lid 200 and distributor 100 are connected.

Illustratively, the fire cover 200 may be overlaid on the mounting cavity 130 with the ignition needle 400 located below the fire cover 200. Therefore, the ignition needle 400 is positioned in the installation cavity 130, and the top of the ignition needle 400 can be surrounded by the fire cover 200, so that the ignition needle 400 is better protected, and the damage caused by mistaken collision or oil stain and other dripping splashes during the cleaning of the combustor is prevented. Even if the phenomenon of overflowing occurs, the ignition needle 400 can be protected from contamination. Alternatively, in an embodiment not shown, the ignition needle may be provided outside the distributor.

For example, referring to fig. 5, the sidewall 110 may include an outer sidewall 111 and an inner sidewall 112. The outer wall 111 has a notch, and the notch is recessed inward from two ends of the outer wall 111 to form an inner wall 112. The outer wall 111 and the inner wall 112 may together form a sidewall of the air mixing chamber 150, and the inner wall 112 may form a sidewall of the mounting cavity 130. Thus, the arrangement of the outer wall 111 and the inner wall 112 can ensure the air-mixing chamber 150 to be airtight, and ensure the air-mixing efficiency. The inner wall 112 enables the ignition needle 400 to be better installed in the installation cavity 130, reduces the accidental collision of the ignition needle 400, and has higher practicability.

For example, referring to fig. 7, the inner sidewall 112 may include a first sidewall 113, a second sidewall 114, and a third sidewall 115. The first side wall 113 and the second side wall 114 extend from both ends of the outer side wall 111 toward the inside of the distributor 100, respectively. The first side wall 113 may have a first outer end 113a and a first inner end 113 b. The first outer end 113a is connected to the outer wall 111, and the first inner end 113b is located inside the outer wall 111. Second side wall 114 has a second outer end 114a and a second inner end 114 b. Second outer end 114a is connected to outer wall 111 and second inner end 114b is located within the outer wall. Third sidewall 115 is connected between first inner end 113b and second inner end 114 b. In this way, the connection stability of the inner side wall 112 and the outer side wall can be further ensured, and the sealing performance of the installation cavity 130 can be ensured. Specifically, the first side wall 113 and the second side wall 114 may extend radially inward of the distributor 100. The third side wall 115 may be a circular arc structure concentrically arranged with the distributor 100, and is connected to the first side wall 113 and the second side wall 114 to form a fan-shaped installation cavity 130 with a cross section gradually increasing from inside to outside. Alternatively, the first side wall and the second side wall may not extend in the radial direction. For example, the first side wall and the second side wall are parallel to each other and extend towards the inner side of the fire distributor, and the mounting cavity is arranged in a long strip shape. The third sidewall 115 may be connected to the first and second sidewalls at an angle. Or, the joint of the third side wall and the first side wall and the joint of the third side wall and the second side wall may be a more smooth arc structure. In an embodiment not shown, no obvious interface may be provided between the first side wall, the second side wall, and the third side wall, and the installation cavity is integrally arranged in an arc shape.

Illustratively, referring to fig. 7, the plurality of flame holding grooves 140 may include a first flame holding groove 141, a second flame holding groove 142, and a third flame holding groove 143. Wherein the first flame holding groove 141 may be provided on the first sidewall 113. The second flame holding groove 142 may be provided on the second sidewall 114. A third flame holding groove 143 may be provided on the third side wall 115. Thus, the flame holding ignition grooves 140 are formed in a plurality of directions around the ignition needle 400, the ignition needle 400 ignites the gas in any direction of the flame holding ignition grooves 140 to complete ignition, and the ignition efficiency is higher. Alternatively, in an embodiment not shown, one flame holding groove may be provided on any one of the first side wall, the second side wall, and the third side wall.

Illustratively, the first flame holding groove 141 may be recessed downward from the top surface of the first side wall 113 and extend from the middle of the first side wall 113 to the first outer end 113 a. Accordingly, the second flame holding groove 142 may be recessed downward from the top surface of the second side wall 114 and extend from the middle of the second side wall 114 to the second outer end 114 a. The third flame holding groove 143 may be recessed downward from the top surface of the third side wall 115 and disposed at the middle of the third side wall 115. Thus, the flame holding groove 140 is recessed from the top surface, so that the structure is simple and reasonable, and the production is easier. An L-shaped chamfer is formed at the joint of the first side wall 113 and the third side wall 115 and at the joint of the first side wall 113 and the second side wall 114, respectively, so as to play a role of stably supporting the fire cover 200. And, the arrangement extended to the middle portion makes the cross-sectional area of each of the first flame holding groove 141, the second flame holding groove 142, and the third flame holding groove 143 large enough to ensure the ventilation efficiency. Or, the first flame holding groove, the second flame holding groove and the third flame holding groove may be one or more through holes respectively disposed on the first side wall, the second side wall and the third side wall, so as to achieve the ventilation effect.

Illustratively, referring to fig. 2, the outer circumferential edge of the fire cover 200 extends downward to form a brim 220, and a gap is formed between the brim 220 and the outer side wall of the fire distributor 100, and the flame holding groove 300 communicates with the outside through the gap. Thus, the flame in the distributor 100 is inclined downward by the eaves 220. The flame can be better guided to the fire slot 120, and the flame stabilizing effect is ensured. Specifically, the outer circumference of the fire cover may extend downward at any angle and length, so that the flame in the flame holding groove may be guided into the fire groove 120. Or in a not shown embodiment, the outer circumference of the fire cover may be a planar structure, and the flame in the flame holding groove is horizontally led out from the flame holding groove.

Illustratively, referring collectively to fig. 1 and 3, the combustor further includes a thermocouple 500, the thermocouple 500 being located below the eave 220. In this way, the flame in the fire slot 120 can maintain the temperature at the thermocouple 500. The eaves 220 can guide the flame in the flame holding groove 300 to the periphery of the thermocouple 500, so that the stability of fire protection of the thermocouple 500 is further ensured, and the occurrence of accidental flameout and the like is reduced.

Illustratively, with combined reference to fig. 1 and 8, the combustor may further include a combustor seat 600. The distributor 100 may be installed within the burner seat 600. The burner seat 600 has a gas delivery chamber 610, the gas delivery chamber 610 communicating with the gas mixing chamber 150 via the gas inlet 170 of the distributor 100. Wherein, distributor 100 installs in combustor seat 600, is equipped with a plurality of spacing portions 620 along the spaced apart setting of circumferential direction in the gas transmission chamber 610, and distributor 100 is equipped with a plurality of spacing adaptation portions 190 that cooperate with a plurality of spacing portions 620 one-to-one. The limiting portion 620 may be a limiting rib protruding from the inner surface of the gas transmission chamber 610, and the limiting adapter 190 may be a limiting groove. Specifically, the number of the stopper 620 may be arbitrary. When the distributor is installed, the limit adapter 190 of the burner 100 is only required to be aligned with the limit part 620, so that the installation of the distributor 100 and the burner base 600 and the communication between the air delivery chamber 610 and the air inlet 170 can be realized. The installation process is simple and efficient, and the installation cost is low.

Exemplarily, referring to fig. 2 and 8 in combination, the burner further includes an ignition needle 400, and an ignition needle mounting portion 630 is provided on the burner holder 600. The ignition needle mounting part 630 is provided on the burner base 600 and is located outside the gas transmission chamber 610. The lower end of the ignition needle 400 is mounted to the ignition needle mounting part 630, the distributor 100 is provided with a through hole 132, the ignition needle 400 passes through the through hole 132, and the upper end of the ignition needle 400 is located outside the side wall 110. The stability of the installation of the ignition needle can be ensured by installing the ignition needle 400 in the ignition needle installation part 630. Specifically, the ignition needle mounting part 630 may be provided at a mounting rib of the outer side of the burner holder 600, which is opened with an opening in which the ignition needle 400 is mounted.

Further, the burner also includes a thermocouple 500. The burner block 600 is further provided with a thermocouple mounting portion 640. Specifically, the thermocouple mounting part 640 may be disposed on the burner seat 600 outside the gas transmission chamber 610. The thermoelement 500 is detachably mounted in the thermoelement mounting part 640. The thermocouple mounting part 640 may ensure the stability of the mounting of the thermocouple 500. The thermocouple 500 is detachably disposed, the thermocouple 500 can be detached from the thermocouple mounting portion 640 without detaching the burner, the detaching process is simple, and after-sale maintenance is more convenient and replacement is more convenient. Illustratively, the thermocouple mounting part 640 and the ignition pin mounting part 630 may be provided on mounting ribs located outside the burner seat 600. One or more of the thermocouple mounting part 640 and the thermocouple mounting part 640 may be a U-shaped mounting groove. The ignition pin 400 and the thermoelement 500 may be installed in respective U-shaped installation grooves, if any. Further, when the burner holder 600 is provided with the stopper 620, the ignition needle 400 is mounted in the ignition needle mounting part 630 and the thermocouple 500 is mounted in the thermocouple mounting part 640. Like this, when carrying out the installation of distributor 100 and combustor seat 600 again, only need carry out spacing installation of spacing portion 620 and spacing adaptation portion 190, can realize the installation of ignition needle 400 and thermocouple 500 simultaneously, need not the position of manual adjustment ignition needle 400 and thermocouple 500 again, installation effectiveness promotes greatly.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For ease of description, relative terms of regions such as "above … …", "above … …", "on … …", "above", and the like may be used herein to describe the positional relationship of one or more components or features with respect to other components or features as illustrated in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the figures is turned over in its entirety, elements "above" or "over" other elements or features would include elements "below" or "beneath" other elements or features. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (19)

1. The utility model provides a combustor, includes distributor and fire lid, fire lid buckle closure is in on the distributor, fire lid with the distributor surrounds and forms the gas mixing chamber, be provided with on the lateral wall of gas mixing chamber with a plurality of fire grooves of gas mixing chamber intercommunication, a plurality of fire grooves along the circumference direction dispersion of gas mixing chamber arranges its characterized in that, the bottom surface of fire lid with the top surface interval of distributor forms the steady flame groove, the steady flame groove with the gas mixing chamber intercommunication, the steady flame groove along the circumference direction stridees across at least two in a plurality of fire grooves.

2. The burner of claim 1, wherein the distributor includes a bottom wall and a side wall extending upwardly from an edge of the bottom wall, the plurality of fire slots being disposed on the side wall.

3. The burner of claim 2, wherein the upper surface of the sidewall is downwardly concave to form the plurality of fire slots.

4. The burner of claim 2, wherein a support portion is provided in the gas mixing chamber and extends above the side wall, and the fire cover is supported on the support portion.

5. The burner of claim 4, wherein the support portion is a plurality of support portions, and the plurality of support portions are spaced apart along the side wall.

6. The burner of claim 4, wherein the support portion is spaced from the air inlet of the distributor, the support portion being connected to the sidewall.

7. The burner of claim 6, wherein no fire groove is formed on the connecting part of the side wall connected with the supporting part, and the top surface of the connecting part is lower than the top surface of the side wall.

8. The burner of claim 7,

the support part comprises a base and a support platform arranged on the base, the base is connected to the connecting part, the base is lower than the connecting part, the support platform is spaced from the connecting part, and the fire cover is supported on the support platform; and/or

The plurality of fire slots include a plurality of first fire slots and a plurality of second fire slots interspersed among the plurality of first fire slots, each of the plurality of first fire slots has a vertical height greater than that of each of the plurality of second fire slots, and the connection portion is located between adjacent two of the second fire slots.

9. The burner of claim 2,

the partly orientation of side wall the inside of distributor is sunken and form the installation cavity, and the ignition needle stretches into in the installation cavity, be provided with a plurality of flame stabilizing fire grooves on the installation cavity, a plurality of flame stabilizing fire grooves center on the ignition needle dispersion is arranged.

10. The burner of claim 9, wherein the side walls include an outer side wall having a notch and an inner side wall recessed inwardly from both ends of the outer side wall at the notch, the outer side wall and the inner side wall together forming a side wall of the gas mixing chamber, the inner side wall forming a side wall of the mounting cavity.

11. The burner of claim 10, wherein the inner side walls include a first side wall, a second side wall, and a third side wall, the first side wall and the second side wall extending from the ends of the outer side wall toward the interior of the distributor, respectively, the first side wall having a first outer end connected to the outer side wall and a first inner end located within the outer side wall, the second side wall having a second outer end connected to the outer side wall and a second inner end located within the outer side wall, the third side wall connected between the first inner end and the second inner end.

12. The burner of claim 11, wherein the plurality of flame holding grooves comprises a first flame holding groove disposed on the first side wall, a second flame holding groove disposed on the second side wall, and a third flame holding groove disposed on the third side wall.

13. The burner of claim 12,

the first flame holding groove is recessed downwards from the top surface of the first side wall and extends from the middle of the first side wall to the first outer end; and/or

The second flame holding groove is recessed downwards from the top surface of the second side wall and extends from the middle of the second side wall to the second outer end; and/or

The third flame stabilizing grooves are recessed downwards from the top surface of the third side wall and are arranged in the middle of the third side wall.

14. The burner of claim 9,

the fire cover is supported on the side wall of the mounting cavity; and/or

The fire cover covers the installation cavity, and the ignition needle is located below the fire cover.

15. The burner of claim 9, wherein a support portion higher than the side wall is arranged in the gas mixing chamber, the fire cover is supported on the side wall of the installation cavity and the support portion, an annular or circular boss is arranged in the middle area of the bottom surface of the fire cover, and the boss is located on the radial inner side of the support portion and the side wall of the installation cavity and abuts against the support portion and the side wall of the installation cavity.

16. The burner of claim 1,

the plurality of fire grooves comprise a plurality of first fire grooves and a plurality of second fire grooves which are alternately arranged, and the vertical height of each of the plurality of first fire grooves is greater than that of each of the plurality of second fire grooves; and/or

The vertical height of the flame stabilizing groove is between 0.5mm and 1 mm; and/or

The flame stabilizing groove is annular; and/or

The plurality of fire grooves are communicated with the flame stabilizing groove.

17. The burner of claim 1, wherein the outer periphery of the fire cover extends downwards to form a brim, a gap is formed between the brim and the outer side wall of the distributor, and the flame stabilizing groove is communicated with the outside through the gap.

18. The burner of claim 17, further comprising a thermocouple located below the eave.

19. The burner of claim 1, further comprising a burner base having a gas delivery chamber in communication with the gas mixing chamber via an air inlet of the distributor, wherein

The distributor is arranged in the burner base, a plurality of limiting parts which are arranged at intervals along the circumferential direction are arranged in the gas transmission chamber, and the distributor is provided with a plurality of limiting adapting parts which are matched with the limiting parts in a one-to-one correspondence manner; and/or

The combustor further comprises an ignition needle, an ignition needle mounting part is arranged on the combustor base and outside the gas transmission chamber, the lower end of the ignition needle is mounted to the ignition needle mounting part, a through hole is formed in the distributor, the ignition needle penetrates through the through hole, and the upper end of the ignition needle is located on the outer side of the gas mixing chamber; and/or

The combustor is characterized in that a thermocouple mounting part is arranged outside the gas transmission chamber on the combustor seat, and the combustor further comprises a thermocouple detachably mounted in the thermocouple mounting part.

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