CN215336315U - Furnace chamber, combustor and gas-cooker - Google Patents

Abstract

The application relates to the technical field of gas cookers and discloses a furnace chamber, a combustor and a gas stove. The oven cavity defines an inlet tube and an air path, the outlet end of the inlet tube is communicated with the inlet end of the air path, and the flow area of the inlet tube is increased along the direction close to the air path. The furnace chamber defines inlet tube and gas circuit, and the gas gets into the gas circuit through the inlet tube, along the direction that is close to the gas circuit, the through-flow area increase of inlet tube for the gas is full of the inlet tube near the gas circuit position in the inlet tube, so that the gas can reach the gas circuit along circumference more evenly, thereby makes the flame even combustion of gas-cooker.

Description

Furnace chamber, combustor and gas-cooker

Technical Field

The application relates to the technical field of gas cookers, for example to a furnace chamber, a burner and a gas stove.

Background

At present, in the furnace chamber of the existing gas stove, gas can not uniformly flow into the gas path, so that the flame of the gas stove is not uniformly combusted along the circumferential direction.

SUMMERY OF THE UTILITY MODEL

The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview nor is intended to identify key/critical elements or to delineate the scope of such embodiments but rather as a prelude to the more detailed description that is presented later.

The embodiment of the disclosure provides a furnace chamber, a burner and a gas stove, which are used for solving the problem that the flame of the gas stove is not uniformly combusted because the gas cannot uniformly flow into a gas path.

The embodiment of the present disclosure provides a furnace chamber, the furnace chamber defines an inlet tube and an air passage, an outlet end of the inlet tube is communicated with an inlet end of the air passage, and a flow area of the inlet tube is increased along a direction close to the air passage.

Optionally, the flow area of the inlet pipe is increased by approaching the gas path in a direction perpendicular to the flow direction of the gas in the inlet pipe; or the gas inlet pipe is close to the gas path along the flowing direction of the gas in the gas inlet pipe, and the flow area of the gas inlet pipe is increased.

Optionally, the inlet tube increases in height in a direction proximate the gas path.

Optionally, the top wall of the inlet pipe is at least partially inclined upwards in a direction approaching the gas path; and/or the bottom wall of the inlet pipe is at least partially inclined downwards along the direction close to the air path.

Optionally, the furnace chamber defines an outer ring inlet pipe and an outer ring gas path, and an outlet end of the outer ring inlet pipe is communicated with an inlet end of the outer ring gas path; the inlet pipe comprises the outer ring inlet pipe, the air path comprises the outer ring air path, and the flow area of the outer ring inlet pipe is increased along the direction close to the outer ring air path.

Optionally, the furnace chamber further defines an inner ring inlet tube and an inner ring air passage, an outlet end of the inner ring inlet tube is communicated with an inlet end of the inner ring air passage, wherein the inlet tube includes the inner ring inlet tube, the air passage includes the inner ring air passage, and a flow area of the inner ring inlet tube increases along a direction close to the inner ring air passage.

The disclosed embodiment also provides a burner, including: an ejector; the furnace chamber according to any one of the preceding embodiments, wherein the furnace chamber is in communication with the injector.

Optionally, the eductor comprises an outer ring eductor; the outlet end of the outer ring ejector is inserted into the inlet end of the outer ring inlet pipe, the inner wall surface of the inlet end of the outer ring inlet pipe is recessed to form a first groove, and the outlet end of the outer ring ejector is positioned in the first groove; or the inlet end of the outer ring inlet pipe is inserted into the outlet end of the outer ring ejector, the inner wall surface of the outlet end of the outer ring ejector is recessed to form a second groove, and the inlet end of the outer ring inlet pipe is located in the second groove.

Optionally, the eductor further comprises an inner ring eductor; the outlet end of the inner ring ejector is inserted into the inlet end of the inner ring inlet pipe, the inner wall surface of the inlet end of the inner ring inlet pipe is recessed to form a third groove, and the outlet end of the inner ring ejector is positioned in the third groove; or the inlet end of the inner ring inlet pipe is inserted into the outlet end of the inner ring ejector, the inner wall surface of the outlet end of the inner ring ejector is recessed to form a fourth groove, and the inlet end of the inner ring inlet pipe is located in the fourth groove.

The embodiment of the present disclosure also provides a gas stove, including the burner as described in any one of the above embodiments.

The furnace chamber, the burner and the gas stove provided by the embodiment of the disclosure can realize the following technical effects:

the furnace chamber defines inlet tube and gas circuit, and the gas gets into the gas circuit through the inlet tube, along the direction that is close to the gas circuit, and the through-flow area increase of inlet tube for the gas is full of the furnace chamber in the position that the inlet tube is close to the gas circuit, thereby makes the gas can follow the exit end of inlet tube and can flow in the entry end of gas circuit along circumference more evenly, so that the flame homogeneous combustion along circumference of gas-cooker.

The foregoing general description and the following description are exemplary and explanatory only and are not restrictive of the application.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings, which correspond to the accompanying drawings and not in limitation thereof, in which elements having the same reference numeral designations are shown as like elements and not in limitation thereof, and wherein:

fig. 1 is a schematic structural view of a gas range provided in an embodiment of the present disclosure;

fig. 2 is a schematic structural diagram of a furnace chamber provided in the embodiment of the present disclosure;

FIG. 3 is a schematic view of a combustor according to an embodiment of the present disclosure.

Reference numerals:

10. a burner; 101. an inner fire cover; 102. an outer fire cover; 40. a furnace chamber; 401. a first side wall; 402. a second side wall; 403. an outer ring gas circuit; 4031. a first outer ring gas path; 4032. a second outer ring gas path; 404. an avoidance groove; 405. an outer ring inlet pipe; 4051. a top wall of the outer ring inlet tube; 406. an inner ring inlet pipe; 407. an inner ring gas path; 50. an ejector; 501. an outer ring ejector; 502. an inner ring ejector; 503. a first groove; 504. a third groove; 60. and a thermocouple.

Detailed Description

So that the manner in which the features and elements of the disclosed embodiments can be understood in detail, a more particular description of the disclosed embodiments, briefly summarized above, may be had by reference to the embodiments, some of which are illustrated in the appended drawings. In the following description of the technology, for purposes of explanation, numerous details are set forth in order to provide a thorough understanding of the disclosed embodiments. However, one or more embodiments may be practiced without these details. In other instances, well-known structures and devices may be shown in simplified form in order to simplify the drawing.

The terms "first," "second," and the like in the description and in the claims, and the above-described drawings of embodiments of the present disclosure, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It should be understood that the data so used may be interchanged under appropriate circumstances such that embodiments of the present disclosure described herein may be made. Furthermore, the terms "comprising" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In the embodiments of the present disclosure, the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings. These terms are used primarily to better describe the disclosed embodiments and their examples and are not intended to limit the indicated devices, elements or components to a particular orientation or to be constructed and operated in a particular orientation. Moreover, some of the above terms may be used to indicate other meanings besides the orientation or positional relationship, for example, the term "on" may also be used to indicate some kind of attachment or connection relationship in some cases. The specific meanings of these terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art as appropriate.

In addition, the terms "disposed," "connected," and "secured" are to be construed broadly. For example, "connected" may be a fixed connection, a detachable connection, or a unitary construction; can be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements or components. Specific meanings of the above terms in the embodiments of the present disclosure can be understood by those of ordinary skill in the art according to specific situations.

The term "plurality" means two or more unless otherwise specified.

In the embodiment of the present disclosure, the character "/" indicates that the preceding and following objects are in an or relationship. For example, A/B represents: a or B.

It should be noted that, in the case of no conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

With reference to fig. 1 to 3, the present disclosure provides a furnace chamber 40, the furnace chamber 40 defines an inlet tube and an air path, an outlet end of the inlet tube is communicated with an inlet end of the air path, and a flow area of the inlet tube increases in a direction close to the air path.

The furnace chamber 40 defines inlet tube and gas circuit, and the gas gets into the gas circuit through the inlet tube, along the direction that is close to the gas circuit, and the through-flow area increase of inlet tube makes the gas be close to the storage space grow of gas circuit in the inlet tube, makes the gas can gather certain volume in the inlet tube, and the furnace chamber is full of to the gas, thereby makes the gas can follow the exit end of inlet tube and follow the entry end that circumference flowed into the gas circuit more evenly, so that the flame even combustion along circumference of gas-cooker.

And the gas inlet pipe is close to the gas path along the direction vertical to the flowing direction of the gas in the gas inlet pipe, and the flow area of the gas inlet pipe is increased.

The through flow area increase of inlet pipe along the flow direction of perpendicular to gas in the inlet pipe for the gas is close to the storage space grow of gas circuit in the inlet pipe, makes the gas can gather certain volume in the inlet pipe, thereby makes the gas flow to the speed of gas circuit from the inlet tube and slows down, so that the gas can reach the gas circuit more evenly.

The gas inlet pipe is close to the gas path along the flowing direction of the gas in the inlet pipe, and the flow area of the inlet pipe is increased.

The through flow area increase of inlet pipe along the flow direction of perpendicular to gas in the inlet pipe for the gas is close to the storage space grow of gas circuit in the inlet pipe, makes the gas can gather certain volume in the inlet pipe, and the furnace chamber is full of to the gas, thereby makes the gas can follow the exit end of inlet pipe and can flow in the entry end of gas circuit along circumference more evenly, so that the flame homogeneous combustion along circumference of messenger's gas-cooker.

The height of the inlet tube increases in a direction closer to the air path.

The height of the inlet pipe is increased, so that the flow area of the inlet pipe is increased, and the operation is simple and the realization is easy by controlling the flow area of the outer fuel gas or the mixed gas channel of the fuel gas and the air in the height direction.

Alternatively, the height of the inlet tube may be gradually increased.

The height crescent of inlet tube makes the through flow area crescent of inlet tube for the gas or the gas and the mist of air can be gentle flow at the inlet tube, avoids because the runner sudden change appears, makes the gas or the gas and the mist of air flow inhomogeneous, perhaps causes the loss to the gas or the mist of gas and air, thereby reduces the combustion efficiency of outer ring fire.

It will be appreciated that the height of the inlet tube may also increase abruptly.

The top wall of the inlet pipe is at least partially inclined upwards along the direction close to the gas path; and/or the presence of a gas in the gas,

the bottom wall of the inlet tube is at least partially inclined downwardly in a direction approaching the air path.

The roof tilt up of inlet tube for the height of inlet tube increases along with the gas in the inlet tube or the flow direction of the gas and the mist of air, thereby make the through-flow area of inlet tube increase along the direction that is close to the gas circuit, thereby when making gas or the gas and the mist of air flow in the inlet tube, because the through-flow area of inlet tube increases, thereby make the dwell time at the inlet tube of the gas or the mist of air and gas increase, the back is gathered at the exit end of inlet tube to the gas or the gas and the mist of air, thereby make the gas or the gas and the mist of air can be even arrive flame department along circumference, guarantee the required gas or the gas and the mist of air of flame burning, improve the combustion efficiency of flame.

Alternatively, the top wall of the outer annular port tube may be entirely inclined upward and the top wall of the inlet tube may be partially inclined upward in the direction of the approach gas.

Optionally, the bottom wall of the inlet duct is at least partially downwardly inclined.

The diapire downward sloping of inlet tube, the direction that makes the height of inlet tube increase along being close to outer loop, thereby make the through flow area of inlet tube increase along the direction that is close to the gas circuit, thereby when making the gas or the gas and the mist of air flow in the inlet tube, because the through flow area increase of inlet tube, thereby make the gas or the mist of air and gas increase at the dwell time of outer loop inlet tube 405, the back is gathered at the exit end of inlet tube to the gas or the gas and the mist of air, thereby make the gas or the gas and the mist of air can arrive flame department smoothly, guarantee the required gas of flame burning or the gas and the mist of air, improve the combustion efficiency of flame.

Alternatively, the bottom wall of the inlet pipe may be entirely inclined downward and the bottom wall of the inlet pipe may be partially inclined downward in a direction approaching the air path.

It will be appreciated that the rear wall of the inlet duct may also be inclined outwardly in a direction away from the air passage, so that the flow area of the inlet duct is increased.

Alternatively, a plurality of inclined planes may be provided in the inlet pipe, each side wall of the inlet pipe includes an upper inclined plane, a rear inclined plane, and the like, and the plurality of inclined planes are designed to enable the air and gas mixture or gas at the outlet of the injector 50 to more smoothly reach the gas path of the cavity 40.

As shown in fig. 1 to 3, the present disclosure provides an oven cavity 40, the oven cavity 40 including a first side wall 401 and a second side wall 402; the second side wall 402 is positioned on the inner side of the first side wall 401, and the first side wall 401 and the second side wall 402 jointly define an outer annular air passage 403; wherein, the outer wall surface of the first sidewall 401 is recessed to form an avoiding groove 404, and the avoiding groove 404 is used for placing the thermocouple 60.

The first side wall 401 and the second side wall 402 of the oven cavity 40 jointly define an outer ring air path 403, the outer ring air path 403 is communicated with the outer fire cover 102, the outer ring air path 403 provides gas or gas-air mixture for the combustion of the outer ring fire, the outer wall surface of the first side wall 401 in the embodiment is recessed to form an avoidance groove 404 for placing the thermocouple 60, and the position of the thermocouple 60 is inwards arranged compared with the position of the thermocouple 60 in the prior art due to the recess of the outer wall surface of the first side wall 401, so that the diameter of the inner fire cover 101 can be reduced, the minimum load of the inner ring fire can be reduced, the minimum fire of the inner ring fire can be further reduced, the flame adjusting range of the gas stove can be increased, the minimum fire of the inner ring fire can be further reduced, and soup in the minimum fire heat preservation or soup cooking by a user, the soup in the pot can not be quickly dried, the adjusting range of the flame of the inner ring fire of the user is improved, and the use experience of the user is improved.

The inner fire cover 101 is provided with inner fire holes which are main fire holes for burning of inner ring fire, the larger the diameter of the inner fire cover 101 is, the larger the load of the inner ring fire is, the larger the area of the inner fire holes required by burning of the inner ring fire is, the smaller the diameter of the inner ring fire is, the smaller the load of the inner ring fire is, and the smaller the area of the inner fire holes required by burning of the inner ring fire is; under the certain condition of area in interior fire hole, the diameter of interior fire lid 101 is too big, can lead to the distance in adjacent interior fire hole too big to unable biography fire, the diameter undersize of interior fire lid 101 can lead to the flame mutual interference in adjacent interior fire hole, thereby produces the flue gas, causes the flue gas to exceed standard.

In the prior art, the diameter of the inner fire cover 101 ranges from 45mm to 55mm, and the minimum load of the inner ring fire is more than 400 w.

Optionally, in this embodiment, since the outer wall surface of the first sidewall 401 is recessed to form the avoiding groove 404, so that the thermocouple 60 is disposed inward, the diameter of the inner fire cover 101 may be made small, and the diameter of the inner fire cover 101 ranges from 25mm to 35 mm.

Alternatively, the inner fire cover 101 may have a diameter of 25mm, 30mm, 35mm, etc.

When the diameter of the inner fire cover 101 is smaller than 25mm, under the condition that the area of the inner fire holes is certain, the distance between the adjacent inner fire holes is too close, so that flames at the adjacent inner fire holes are mutually interfered, smoke is generated, and the smoke exceeds the standard; when the diameter of interior fire lid 101 is greater than 35mm, under the certain condition of the area in interior fire hole, the diameter of interior fire lid 101 is too big, can lead to the distance in adjacent interior fire hole too big to can't pass fire.

Optionally, in this embodiment, the minimum load of the inner ring fire can be made small due to the diameter reduction of the inner fire cover 101, and the minimum load of the inner ring fire is in the range of 150w-250 w.

Optionally, the minimum load of the inner ring fire is 150w, 200w, 250 w.

Alternatively, the outer sidewall of the first sidewall 401 may be recessed along a circumferential portion of the cavity 40 to form the escape groove 404, so as to ensure the strength of the first sidewall 401, and the outer sidewall of the first sidewall 401 may also be recessed along the entire circumferential portion of the cavity 40 to form the escape groove 404.

Alternatively, the thermocouple 60 may be located entirely within the avoidance slot 404 or partially within the avoidance slot 404.

Optionally, the shape of the avoidance slot 404 is adapted to the thermocouple 60.

Optionally, the inner dimension of the avoidance slot 404 is greater than or equal to the outer dimension of the thermocouple 60 such that the thermocouple 60 may be partially or fully located within the avoidance slot 404.

Alternatively, the first sidewall 401 has a ring shape extending in a circumferential direction of the cavity 40.

Optionally, the second sidewall 402 is ring-shaped extending along a circumference of the cavity 40.

Alternatively, the outer annular air passage 403 has a ring shape extending in the circumferential direction of the cavity 40.

A portion of the first sidewall 401 protrudes toward the second sidewall 402 as a whole to form an escape groove 404.

The whole part of the first side wall 401 protrudes towards the second side wall 402 to form an avoiding groove 404 for placing the thermocouple 60, and the other part of the first side wall 401 is kept in an original shape, so that on one hand, the strength of the first side wall 401 is ensured, and on the other hand, the avoiding groove 404 cannot occupy the outer ring gas path 403 too much, so that the flowing smoothness of gas in the outer ring gas path 403 is ensured, and the gas or the mixed gas of the gas and the air can smoothly reach the outer ring fire.

The first side wall 401 abuts against the second side wall 402 corresponding to at least a portion of the avoidance groove 404.

It can be understood that at least a portion of the inner wall surface of the first sidewall 401 corresponding to the avoiding groove 404 abuts against the outer wall surface of the second sidewall 402, so that the avoiding groove 404 is disposed inward as much as possible, the thermocouple 60 can be disposed inward to the maximum extent, the diameter of the inner fire cover 101 can be made small enough, the minimum load of the inner ring fire is reduced, and the minimum fire is further reduced.

As shown in fig. 2, optionally, a portion of the first sidewall 401 corresponding to the avoiding groove 404 may be entirely abutted against the second sidewall 402, or may be partially abutted against the second sidewall 402.

The cavity 40 further defines an outer annular inlet duct 405, an outlet end of the outer annular inlet duct 405 communicating with an inlet end of the outer annular air passage 403, the outer annular inlet duct 405 increasing in flow area in a direction approaching the outer annular air passage 403.

The first sidewall 401 is correspondingly abutted against at least a portion of the outer wall surface of the avoiding groove 404 with the inner wall surface of the second sidewall 402, so that the outer annular gas path 403 is blocked, and thus the outer annular gas path 403 cannot form a gas path circulating in the circumferential direction, the outlet end of the outer annular inlet tube 405 defined by the cavity 40 is communicated with the outer annular gas path 403, and is used for providing gas or a mixture of gas and air to the outer annular gas path 403, after the gas or the mixture of gas and air enters the outer annular inlet tube 405, most of the gas or the mixture of gas and air preferentially enters the first outer annular gas path 4031 of the outer annular gas path 403, because the outer annular gas path 403 is blocked, the gas or the mixture of gas and air cannot flow uniformly in the outer annular gas path 403 in the circumferential direction, most of the gas or the mixture of gas and air enters the first outer annular gas path 4031 of the outer annular gas path 403, and cannot enter the second outer annular gas path 4032 of the outer annular gas path 403, eventually, the flow of the gas or the mixture of the gas and the air in the outer circular gas path 403 is not uniform, so that the gas or the mixture of the gas and the air supplied to the outer fire cover 102 is not uniform, and the outer circular fire cannot be uniformly combusted.

In this example, the flow area of the outer ring inlet pipe 405 increases in a direction close to the outer ring air passage 403, which can be understood as: the area of the outer ring inlet pipe 405 close to the outer ring air passage 403 is increased, so that on one hand, the flow area of the position, close to the outer ring air passage 403, of the outer ring inlet pipe 405 is increased, so that the residence time of the gas or the gas and air mixture in the outer ring inlet pipe 405 is increased, and after the gas or the gas and air mixture is accumulated at the outlet end of the outer ring inlet pipe 405, the gas or the gas and air mixture can uniformly reach the second outer ring air passage 4032 and the first outer ring air passage 4031 of the outer ring air passage 403; on the other hand, along the direction close to the outer ring air passage 403, the flow area of the outer ring inlet pipe 405 is increased, so that the resistance at the joint of the outlet end of the outer ring inlet pipe 405 and the outer ring air passage 403 is reduced, the loss of the fuel gas or the mixed gas of the fuel gas and the air is reduced, and the fuel gas or the mixed gas of the fuel gas and the air can smoothly reach the outer ring air passage 403.

Arrows in fig. 2 indicate the flow directions of the first and second outer ring air paths 4031 and 4032 in the outer ring air path 403.

Optionally, the flow area of the outer ring inlet pipe 405 may be gradually increased along a direction close to the outer ring air passage 403, so that when gas or a mixture of gas and air flows in the outer ring inlet pipe 405, the gas or the mixture of gas and air may smoothly flow, and uneven flow of the gas or the mixture of gas and air due to sudden change of a flow channel is avoided, or loss of the gas or the mixture of gas and air is caused, thereby reducing the combustion efficiency of the outer ring fire.

Alternatively, the flow area of the outer ring inlet pipe 405 increases near the outer ring air passage 403 in a direction perpendicular to the flow direction of the gas inside the outer ring inlet pipe 405.

Alternatively, the flow area of the outer ring inlet pipe 405 increases near the outer ring air passage 403 in the flow direction of the gas inside the outer ring inlet pipe 406.

It will be appreciated that the flow area of the outer ring inlet tube 405 may also increase abruptly in a direction closer to the outer ring air passage 403.

The height of the outer ring inlet tube 405 increases in a direction closer to the outer ring air passage 403.

The height of the outer ring inlet pipe 405 is increased so that the flow area of the outer ring inlet pipe 405 is increased, and the operation is simple and easy to realize by controlling the flow area of the outer gas or the mixed gas channel of the gas and the air in the height direction.

Alternatively, the height of the outer ring inlet tube 405 may be gradually increased.

The height crescent of outer loop inlet tube 405 makes the through flow area crescent of outer loop inlet tube 405 for the gas or the mist of gas and air can be gentle flow at outer loop inlet tube 405, avoids because the runner sudden change appears, makes the gas or the mist of gas and air flow inhomogeneous, perhaps causes the loss to the gas or the mist of gas and air, thereby reduces the combustion efficiency of outer loop fire.

It will be appreciated that the height of the outer ring inlet tube 405 may also increase abruptly.

The top wall 4051 of the outer ring inlet tube is at least partially upwardly inclined in a direction adjacent the outer ring air passage 403.

The top wall 4051 of the outer ring inlet pipe is inclined upwards, so that the height of the outer ring inlet pipe 405 increases along the flow direction of the gas or the gas and air mixture in the outer ring inlet pipe 405, and the flow area of the outer ring inlet pipe 405 increases along the direction close to the outer ring air passage 403, so that when the gas or the gas and air mixture flows in the outer ring inlet pipe 405, the residence time of the gas or the gas and air mixture in the outer ring inlet pipe 405 increases due to the increase of the flow area of the outer ring inlet pipe 405, and the gas or the gas and air mixture can uniformly reach the second outer ring air passage 4032 and the first outer ring air passage 4031 of the outer ring air passage 403 after being accumulated at the outlet end of the outer ring inlet pipe 405, so that the gas or the gas and air mixture can smoothly reach the outer ring fire, and the gas or the gas and air mixture quantity required by the outer ring fire combustion is ensured, the combustion efficiency of the outer ring fire is improved.

Alternatively, the top wall 4051 of the outer ring inlet tube may be entirely upwardly inclined and the top wall 4051 of the outer ring inlet tube may be partially upwardly inclined in a direction approaching the outer ring air passage 403.

Optionally, the bottom wall of the outer ring inlet tube 405 is at least partially downwardly inclined.

The bottom wall of the outer ring inlet tube 405 is inclined downwardly, so that the height of the outer ring inlet tube 405 increases in a direction approaching the outer ring air passage 403, so that the flow area of the outer ring inlet pipe 405 increases in a direction approaching the outer ring air passage 403, so that when gas or a mixture of gas and air flows in the outer ring inlet pipe 405, since the flow area of the outer ring inlet pipe 405 is increased, so that the residence time of the gas or the mixture of air and gas in the outer ring inlet pipe 405 is increased, after the gas or the mixture of gas and air is accumulated at the outlet end of the outer ring inlet pipe 405, the second outer ring air passage 4032 and the first outer ring air passage 4031 of the outer ring air passage 403 may be uniformly reached, therefore, the gas or the mixed gas of the gas and the air can smoothly reach the outer ring fire, the gas or the mixed gas of the gas and the air required by the combustion of the outer ring fire is ensured, and the combustion efficiency of the outer ring fire is improved.

Alternatively, the bottom wall of the outer ring inlet tube 405 may be entirely inclined downward and the bottom wall of the outer ring inlet tube 405 may be partially inclined downward in a direction approaching the outer ring air passage 403.

The furnace chamber 40 further defines an inner ring inlet duct 406, an outlet end of the inner ring inlet duct 406 communicating with an inlet end of the inner ring gas passage 407, and a flow area of the inner ring inlet duct 406 increases in a direction approaching the inner ring gas passage 407.

In this example, the flow area of the inner ring inlet pipe 406 increases in the direction close to the inner ring air passage 407, and it can be understood that: the area of the inner ring inlet pipe 406 close to the inner ring gas passage 407 is increased, so that on one hand, the flow area of the position of the inner ring inlet pipe 406 close to the inner ring gas passage 407 is increased, so that the residence time of the gas or the gas and air mixed gas in the inner ring inlet pipe 406 is increased, and the gas or the gas and air mixed gas can uniformly reach the inner ring gas passage 407 after being accumulated at the outlet end of the inner ring inlet pipe 406; on the other hand, in the direction close to the inner ring air passage 407, the flow area of the inner ring inlet pipe 406 is increased, so that the resistance at the connection between the outlet end of the inner ring inlet pipe 406 and the inner ring air passage 407 is reduced, thereby reducing the loss of the gas or the mixture of the gas and the air, and enabling the gas or the mixture of the gas and the air to smoothly reach the inner ring air passage 407.

Optionally, the flow area of the inner ring inlet pipe 406 may be gradually increased along a direction close to the inner ring gas passage 407, so that when gas or a mixture of gas and air flows in the inner ring inlet pipe 406, the gas or the mixture of gas and air may smoothly flow, and uneven flow of the gas or the mixture of gas and air due to sudden change of a flow channel or loss of the gas or the mixture of gas and air, which may reduce the combustion efficiency of the inner ring fire, is avoided.

Alternatively, the flow area of the inner ring inlet pipe 406 increases near the inner ring gas passage 407 in the direction perpendicular to the flow direction of the gas inside the inner ring inlet pipe 406.

Alternatively, the flow area of the inner ring inlet pipe 406 increases near the inner ring gas passage 407 in the flow direction of the gas inside the inner ring inlet pipe 406.

It will be appreciated that the flow area of the inner ring inlet tube 406 may also increase abruptly in a direction closer to the inner ring air passage 407.

The height of the inner ring inlet pipe 406 increases in a direction close to the inner ring air passage 407.

The height of the inner ring inlet pipe 406 is increased, so that the flow area of the inner ring inlet pipe 406 is increased, and the operation is simple and the realization is easy by controlling the flow area of the outer gas or the mixed gas channel of the gas and the air in the height direction.

Alternatively, the height of the inner ring inlet tube 406 may be gradually increased.

The height crescent of inner ring inlet pipe 406 makes the through-flow area crescent of inner ring inlet pipe 406 for the gas or the mist of gas and air can be gentle flow in inner ring inlet pipe 406, avoids because the runner sudden change appears, makes the gas or the mist of gas and air flow inhomogeneous, perhaps causes the loss to the gas or the mist of gas and air, thereby reduces the combustion efficiency of inner ring fire.

It will be appreciated that the height of the inner ring inlet tube 406 may also increase abruptly.

The top wall of the inner ring inlet tube is at least partially inclined upwardly in a direction approaching the inner ring air passage 407.

The top wall of the inner ring inlet pipe 406 is inclined upward, so that the height of the inner ring inlet pipe 406 increases with the flow direction of the gas or the mixed gas of gas and air inside the inner ring inlet pipe 406, so that the flow area of the inner ring inlet pipe 406 increases in a direction close to the inner ring air passage 407, so that when gas or a mixture of gas and air flows in the inner ring inlet pipe 406, since the flow area of the inner ring inlet pipe 406 is increased, the residence time of the gas or the mixture of air and gas in the inner ring inlet pipe 406 is increased, and the gas or the mixture of gas and air can uniformly reach the inner ring gas path 407 after being accumulated at the outlet end of the inner ring inlet pipe 406, therefore, the gas or the mixed gas of the gas and the air can smoothly reach the inner ring fire, the gas or the mixed gas of the gas and the air required by the combustion of the inner ring fire is ensured, and the combustion efficiency of the inner ring fire is improved.

Alternatively, the top wall of the inner ring inlet pipe 406 may be entirely inclined upward and the top wall of the inner ring inlet pipe 406 may be partially inclined upward in a direction approaching the inner ring air passage 407.

Optionally, the bottom wall of the inner ring inlet tube 406 is at least partially downwardly sloped.

The bottom wall of the inner ring inlet pipe 406 is inclined downwards, so that the height of the inner ring inlet pipe 406 is increased along the direction close to the inner ring gas path 407, so that the flow area of the inner ring inlet pipe 406 is increased along the direction close to the inner ring gas path 407, and when gas or gas and air mixed gas flows in the inner ring inlet pipe 406, because the flow area of the inner ring inlet pipe 406 is increased, so that the residence time of the gas or gas and gas mixed gas in the inner ring inlet pipe 406 is increased, after the gas or gas and air mixed gas is accumulated at the outlet end of the inner ring inlet pipe 406, the gas or gas and air mixed gas can uniformly reach the inner ring 407 in the gas path, so that the gas or gas and air mixed gas can smoothly reach the inner ring fire, the gas or gas and air mixed gas amount required by the combustion of the inner ring fire is ensured, and the combustion efficiency of the inner ring fire is improved.

Alternatively, the bottom wall of the inner ring inlet pipe 406 may be entirely inclined downward and the bottom wall of the inner ring inlet pipe 406 may be partially inclined downward in a direction approaching the inner ring air passage 407.

The disclosed embodiment also provides a burner 10, the burner 10 includes an injector 50 and the furnace chamber 40 as in any one of the above embodiments, and an inlet end of the furnace chamber 40 is communicated with an outlet end of the injector 50.

The burner 10 provided in the embodiment of the present disclosure includes the furnace chamber 40 in any one of the above embodiments, so that the burner 10 has all the advantages of the furnace chamber 40 in any one of the above embodiments, and thus, the description thereof is omitted.

The eductor 50 includes an outer ring eductor 501; the outlet end of the outer ring ejector 501 is inserted into the inlet end of the outer ring inlet pipe 405, the inner wall surface of the inlet end of the outer ring inlet pipe 405 is recessed to form a first groove 503, and the outlet end of the outer ring ejector 501 is located in the first groove 503; or the inlet end of the outer ring inlet pipe 405 is inserted into the outlet end of the outer ring ejector 501, the inner wall surface of the outlet end of the outer ring ejector 501 is recessed to form a second groove, and the inlet end of the outer ring inlet pipe 405 is located in the second groove.

The outer ring ejector 501 is used for conveying gas or gas and air mixed gas into the outer ring inlet pipe 405, then the outer ring inlet pipe 405 conveys the gas or gas and air mixed gas into the outer ring gas path 403, so that the outer ring gas path is used for burning of outer ring fire, the inlet end of the outer ring inlet pipe 405 is connected with the outer ring ejector 501 through the first groove 503, so that when the gas or gas and air mixed gas enters the inlet end of the outer ring inlet through the outlet end of the outer ring ejector 501, no flow channel mutation occurs, and the gas or gas and air mixed gas can smoothly enter the outer ring inlet pipe 405, so that the gas or gas and air mixed gas flows more smoothly; the same, when the entry end of outer loop inlet tube 405 and outer loop ejector 501 pass through the second recess and are connected for the mixed gas of gas or gas and air can not take place the runner sudden change when the exit end through outer loop ejector 501 gets into the entry end of outer loop inlet tube 405, thereby make in the mixed gas of gas or gas and air can get into outer loop inlet tube 405 smoothly, make the mixed gas's of gas or gas and air flow more smoothly.

Optionally, when the outlet end of the outer ring ejector 501 is located in the first groove 503, the outer wall surface of the outlet end of the outer ring ejector 501 is flush with the inner wall surface of the inlet end of the outer ring inlet pipe 405, so that a joint between the outlet end of the outer ring ejector 501 and the inlet end of the outer ring inlet pipe 405 is completely free of sudden change of a flow channel, and gas or mixed gas of gas and air can flow more smoothly.

Optionally, when the outlet end of the outer ring injector 501 is located in the first groove 503, a certain height difference may exist between an outer wall surface of the outlet end of the outer ring injector 501 and an inner wall surface of an inlet end of the outer ring inlet pipe 405, but the height difference is small, so as to reduce a flow channel mutation at a connection between the outlet end of the outer ring injector 501 and the inlet end of the outer ring inlet pipe 405, so that the gas or the mixed gas of the gas and the air can flow more smoothly, for example, the outer wall surface of the outlet end of the outer ring injector 501 may be slightly higher than the inner wall surface of the inlet end of the outer ring inlet pipe 405, or the outer wall surface of the outlet end of the outer ring injector 501 may be slightly lower than the inner wall surface of the inlet end of the outer ring inlet pipe 405.

Optionally, when the inlet end of the outer ring inlet pipe 405 is located in the second groove, the outer wall surface of the outlet end of the outer ring ejector 501 is flush with the inner wall surface of the inlet end of the outer ring inlet pipe 405, so that the joint between the outlet end of the outer ring ejector 501 and the inlet end of the outer ring inlet pipe 405 is completely free of sudden changes in flow channel, and gas or gas-air mixture can flow more smoothly.

Optionally, when the outlet end of the outer ring ejector 501 is located in the second groove, a certain height difference may exist between the outer wall surface of the outlet end of the outer ring ejector 501 and the inner wall surface of the inlet end of the outer ring inlet pipe 405, but the height difference is small, so that the flow channel mutation at the connection between the outlet end of the outer ring ejector 501 and the inlet end of the outer ring inlet pipe 405 is reduced, and gas or mixed gas of gas and air can flow more smoothly.

The furnace chamber 40 further defines an inner ring inlet pipe 406 and an inner ring gas passage 407, an outlet end of the inner ring inlet pipe 406 is communicated with the inner ring gas passage 407, and the injector 50 further comprises an inner ring injector 502; the outlet end of the inner ring ejector 502 is inserted into the inlet end of the inner ring inlet pipe 406, the inner wall surface of the inlet end of the inner ring inlet pipe 406 is recessed to form a third groove 504, and the outlet end of the inner ring ejector 502 is positioned in the third groove 504; or the inlet end of the inner ring inlet pipe 406 is inserted into the outlet end of the inner ring injector 502, the inner wall surface of the outlet end of the inner ring injector 502 is recessed to form a fourth groove, and the inlet end of the inner ring inlet pipe 406 is located in the fourth groove.

The inner ring ejector 502 is used for conveying gas or gas and air mixed gas into the inner ring inlet pipe 406, then the inner ring inlet pipe 406 conveys the gas or gas and air mixed gas into the inner ring gas path 407, so that the inner ring gas path is used for combustion of inner ring fire, the inlet end of the inner ring inlet pipe 406 is connected with the inner ring ejector 502 through the third groove 504, so that when the gas or gas and air mixed gas enters the inlet end of the inner ring inlet through the outlet end of the inner ring ejector 502, no flow channel mutation occurs, and the gas or gas and air mixed gas can smoothly enter the inner ring inlet pipe 406, so that the gas or gas and air mixed gas flows more smoothly; the same, when the entry end of inner ring inlet pipe 406 and inner ring ejector 502 pass through the fourth recess and are connected for the mixed gas of gas or gas and air can not take place the runner sudden change when the exit end through inner ring ejector 502 gets into the entry end of inner ring entry, thereby make in the mixed gas of gas or gas and air can get into inner ring inlet pipe 406 smoothly, make the mixed gas's of gas or gas and air flow more smoothly.

Optionally, when the outlet end of the inner ring injector 502 is located in the third groove 504, the outer wall surface of the outlet end of the inner ring injector 502 is flush with the inner wall surface of the inlet end of the inner ring inlet pipe 406, so that there is no sudden change of flow channel at the connection between the outlet end of the inner ring injector 502 and the inlet end of the inner ring inlet pipe 406, and the gas or the gas-air mixture can flow more smoothly.

Optionally, when the outlet end of the inner ring injector 502 is located in the third groove 504, a certain height difference may exist between the outer wall surface of the outlet end of the inner ring injector 502 and the inner wall surface of the inlet end of the inner ring inlet pipe 406, but the height difference is small, so that a flow channel mutation at a connection position of the outlet end of the inner ring injector 502 and the inlet end of the inner ring inlet pipe 406 is reduced, and gas or mixed gas of gas and air can flow more smoothly.

Optionally, when the inlet end of the inner ring inlet pipe 406 is located in the fourth groove, the outer wall surface of the outlet end of the inner ring injector 502 is flush with the inner wall surface of the inlet end of the inner ring inlet pipe 406, so that the joint between the outlet end of the inner ring injector 502 and the inlet end of the inner ring inlet pipe 406 has no sudden change of flow channel, and the fuel gas or the mixed gas of the fuel gas and the air can flow more smoothly.

Optionally, when the outlet end of the inner ring ejector 502 is located in the fourth groove, a certain height difference may exist between the outer wall surface of the outlet end of the inner ring ejector 502 and the inner wall surface of the inlet end of the inner ring inlet pipe 406, but the height difference is small, so that a flow channel mutation at a connection position of the outlet end of the inner ring ejector 502 and the inlet end of the inner ring inlet pipe 406 is reduced, and gas or mixed gas of gas and air can flow more smoothly.

With reference to fig. 1 to 3, a flow path of gas or a mixture of gas and air will be described:

the gas or the mixed gas of the gas and the air enters the inlet end of the outer ring inlet pipe 405 through the outlet end of the outer ring ejector 501, when the gas or the mixed gas of the gas and the air flows through the joint between the outlet end of the outer ring ejector 501 and the inlet end of the outer ring inlet pipe 405, the gas or the mixed gas of the gas and the air cannot encounter sudden change of flow channel due to the connection of the first groove 503, the gas or the mixed gas of the gas and the air smoothly enters the outer ring inlet pipe 405, after the gas or the mixed gas of the gas and the air enters the outer ring inlet pipe 405, the top wall 4051 of the outer ring inlet pipe is inclined upwards along the direction close to the outer ring gas path 403, so that the flow area of the outer ring inlet pipe 405 is increased, the retention time of the gas or the mixed gas of the gas and the air in the outer ring inlet pipe 405 is increased, and after the gas or the mixed gas of the gas and the air is accumulated to a certain amount, the gas or the mixed gas and the mixed gas and the air smoothly enters the outer ring gas path 403 along the outlet end of the outer ring inlet pipe 405, the air flows of the second outer ring air path 4032 and the first outer ring air path 4031 are uniformly distributed, and the gas or the gas-air mixed gas reaches the outer fire cover 102 through the outer ring air path 403 to provide the gas or the gas-air mixed gas for the combustion of the outer ring fire; meanwhile, gas or gas and air mixed gas enters the inlet end of the inner ring inlet pipe 406 through the outlet end of the inner ring injector 502, when the gas or gas and air mixed gas flows through the joint of the outlet end of the inner ring injector 502 and the inlet end of the inner ring inlet pipe 406, the gas or gas and air mixed gas cannot encounter sudden change of flow channels due to the connection of the third groove 504, the gas or gas and air mixed gas smoothly enters the inner ring inlet pipe 406, the gas or gas and air mixed gas enters the inner ring gas path 407 through the outlet end of the inner ring inlet pipe 406 and enters the inner fire cover 101 from the inner ring gas path 407, and gas or gas and air mixed gas is provided for combustion of inner ring fire.

In addition, because the outer wall surface of the first side wall 401 is recessed to form the avoiding groove 404, the avoiding groove 404 is used for placing the thermocouple 60, and the thermocouple 60 is arranged inwards, the diameter of the inner fire cover 101 can be reduced, the minimum load of inner ring fire is reduced, the minimum fire of the inner ring fire is further reduced, the adjusting range of flame of the gas stove is enlarged, and the user experience is improved.

The embodiment of the present disclosure also provides a gas stove, including the burner 10 in any one of the above embodiments.

The gas stove provided by the embodiment of the present disclosure includes the burner 10 in any one of the above embodiments, so that the gas stove has all the beneficial effects of the burner 10 in any one of the above embodiments, and details are not repeated herein.

The above description and drawings sufficiently illustrate embodiments of the disclosure to enable those skilled in the art to practice them. Other embodiments may include structural and other changes. The examples merely typify possible variations. Individual components and functions are optional unless explicitly required, and the sequence of operations may vary. Portions and features of some embodiments may be included in or substituted for those of others. The embodiments of the present disclosure are not limited to the structures that have been described above and shown in the drawings, and various modifications and changes may be made without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A furnace chamber (40), characterized in that,

the oven cavity (40) defines an inlet pipe and an air path, the outlet end of the inlet pipe is communicated with the inlet end of the air path, and the flow area of the inlet pipe is increased along the direction close to the air path.

2. Oven cavity (40) according to claim 1,

the gas inlet pipe is close to the gas path along the direction perpendicular to the flowing direction of the gas in the gas inlet pipe, and the flow area of the gas inlet pipe is increased; or the gas inlet pipe is close to the gas path along the flowing direction of the gas in the gas inlet pipe, and the flow area of the gas inlet pipe is increased.

3. Oven cavity (40) according to claim 1,

the inlet tube increases in height in a direction approaching the air path.

4. Oven cavity (40) according to claim 1,

the top wall of the inlet pipe is at least partially inclined upwards along the direction close to the gas path; and/or the presence of a gas in the gas,

the bottom wall of the inlet pipe is at least partially inclined downwards along the direction close to the air path.

5. Oven cavity (40) according to claim 1,

the furnace chamber (40) defines an outer ring inlet pipe (405) and an outer ring air passage (403), wherein the outlet end of the outer ring inlet pipe (405) is communicated with the inlet end of the outer ring air passage (403);

wherein the inlet pipe comprises the outer ring inlet pipe (405), the air passage comprises the outer ring air passage (403), and the flow area of the outer ring inlet pipe (405) is increased along the direction close to the outer ring air passage (403).

6. Oven cavity (40) according to any of the claims 1 to 5,

the furnace chamber (40) further defines an inner ring inlet pipe (406) and an inner ring air passage (407), an outlet end of the inner ring inlet pipe (406) is communicated with an inlet end of the inner ring air passage (407),

wherein the inlet pipe comprises the inner ring inlet pipe (406), the gas path comprises the inner ring gas path (407), and the flow area of the inner ring inlet pipe (406) is increased along the direction close to the inner ring gas path.

7. A burner (10), comprising:

an ejector (50);

the oven cavity (40) according to any one of claims 1 to 6, the oven cavity (40) being in communication with the injector (50).

8. The burner (10) of claim 7,

the eductor (50) includes an outer ring eductor (501);

the outlet end of the outer ring ejector (501) is inserted into the inlet end of an outer ring inlet pipe (405), the inner wall surface of the inlet end of the outer ring inlet pipe (405) is recessed to form a first groove (503), and the outlet end of the outer ring ejector (501) is located in the first groove (503); or the inlet end of the outer ring inlet pipe (405) is inserted into the outlet end of the outer ring ejector (501), the inner wall surface of the outlet end of the outer ring ejector (501) is recessed to form a second groove, and the inlet end of the outer ring inlet pipe (405) is located in the second groove.

9. The burner (10) of claim 7 or 8,

the eductor (50) further includes an inner ring eductor (502);

the outlet end of the inner ring ejector (502) is inserted into the inlet end of an inner ring inlet pipe (406), the inner wall surface of the inlet end of the inner ring inlet pipe (406) is recessed to form a third groove (504), and the outlet end of the inner ring ejector (502) is positioned in the third groove (504); or the inlet end of the inner ring inlet pipe (406) is inserted into the outlet end of the inner ring ejector (502), the inner wall surface of the outlet end of the inner ring ejector (502) is recessed to form a fourth groove, and the inlet end of the inner ring inlet pipe (406) is located in the fourth groove.

10. Gas burner, characterized in that it comprises a burner (10) according to any one of claims 7 to 9.

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