CN109631083B

CN109631083B - Pilot burner assembly

Info

Publication number: CN109631083B
Application number: CN201811235554.4A
Authority: CN
Inventors: 程洪; 向熹
Original assignee: Zhongshan City Heng Yue Electrical Appliance Co ltd
Current assignee: Zhongshan City Heng Yue Electrical Appliance Co ltd
Priority date: 2018-10-22
Filing date: 2018-10-22
Publication date: 2021-06-08
Anticipated expiration: 2038-10-22
Also published as: CN109631083A

Abstract

The present invention relates generally to gas burner assemblies, and more particularly to pilot burner assemblies for gas appliances. The pilot burner assembly comprises a combustion tube assembly, an electric induction device and a support, wherein the combustion tube assembly and the electric induction device are arranged in parallel and are respectively kept fixed through the support, the combustion tube assembly comprises a combustion tube, a compression fitting, a pilot burner cover and a fixing member, the compression fitting is connected with the combustion tube and used for connecting the combustion tube assembly to an air source, the pilot burner cover is movably fixed to the combustion tube, and the fixing member is used for connecting and fixing the combustion tube and the pilot burner cover. The pilot burner assembly of the invention can be used safely with gas appliances, can convert heat energy or light energy into electric energy by means of an electric induction device, and can control the presence or absence of gas by controlling the gas valve.

Description

Pilot burner assembly

[ technical field ] A method for producing a semiconductor device

The present invention relates generally to gas burner assemblies, and more particularly to pilot burner assemblies for gas appliances.

[ background of the invention ]

Gas-fired appliances with a circulation switch typically have a pilot burner that provides a flame with the purpose of illuminating the main burner of the appliance when heating is required. In some cases, the pilot burner may also provide a safety control mechanism to help ensure that if the pilot flame is extinguished for any reason, the gas supply to the entire apparatus is shut off.

Pilot burners for gas-fired appliances generally comprise a pilot tube defining a flame opening at one end, a thermoelectric device for detecting the flame and a spark source. The alignment and positioning of the various components of the pilot burner can affect the operation and reliability of the pilot burner assembly. The bracket may help maintain the alignment of the various components. However, in many cases, different devices require different rack configurations. Thus, to build or service different appliances, it is often necessary to carry multiple rack configurations in inventory, which can be a significant reduction in operating efficiency.

[ summary of the invention ]

To address the deficiencies of the prior art, the present invention provides a gas burner assembly, and more particularly, a pilot burner assembly for a gas appliance.

In order to achieve the purpose, the invention adopts the specific scheme that:

a pilot burner assembly comprising a combustion tube assembly, an electric induction device and a support, the combustion tube assembly and the electric induction device being arranged in parallel and held stationary by the support, respectively, the combustion tube assembly comprising a combustion tube, a compression fitting connected to the combustion tube for connecting the combustion tube assembly to a gas source, a pilot cap movably secured to the combustion tube, and a securing member for fixedly connecting the combustion tube and the pilot cap.

Further, the bracket includes at least a first fixing plate, a second fixing plate and a third fixing plate, which are connected to each other in a U shape, the first fixing plate and the second fixing plate are spaced apart from each other by a certain distance and extend in parallel, and the third fixing plate is connected to the first fixing plate and the second fixing plate and is perpendicular to the first fixing plate and the second fixing plate.

Furthermore, the third fixing plate is provided with at least a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are respectively used for fixedly mounting the combustion tube assembly and the electric induction device.

Further, the first fixing plate or the second fixing plate includes at least one mounting structure for receiving a fixing device.

Furthermore, the pilot burner further comprises a spark source, and the third fixing plate further comprises an additional hole for fixing the spark source.

Furthermore, the fixing member comprises a collar and a locking device, and a locking hole corresponding to the locking device is formed in the collar.

Furthermore, the pilot burner cap comprises a cap structure and a tubular structure, the lantern ring is sleeved with the tubular structure to fixedly connect the pilot burner cap with the combustion pipe, and the lantern ring is in interference fit with the tubular structure.

Further, the tubular structure sidewall includes a protrusion that engages the collar to determine the position of the pilot burner cap relative to the burner tube.

Furthermore, the pilot burner assembly further comprises an auxiliary support, wherein the auxiliary support is provided with a positioning hole, the auxiliary support is fixed on the support through the positioning hole, and the pilot burner assembly can be mounted on the gas appliance through the support.

Still further, the electrical sensing device is a thermo-electrical sensing device or a photo-electrical sensing device.

[ description of the drawings ]

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a perspective view of a pilot burner assembly of the present invention;

FIG. 2 is another perspective view of the pilot burner assembly of the present invention;

FIG. 3 is an exploded perspective view of the pilot burner assembly of the present invention;

FIG. 4 is a perspective view of the pilot burner mounting bracket of the present invention;

fig. 5 is a partially exploded perspective view of the pilot burner of the present invention.

Description of reference numerals:

pilot burner arrangement 10

Burner tube assembly 12

Electric induction device 14

Flame opening 16

Pilot burner cap 18

Collar 22

Locking device 24

Burner tube 26

Compression fitting 28

Support 30

First fixing plate 32

Second fixing plate 34

Third fixing plate 36

Mounting structure 38

Pilot burner cap locking hole 40

Additional holes 42

Mounting structure 46

First mounting hole 50

Second mounting hole 52

Projection 54

Burner tube first end 56

Central lumen 58

Cover structure 60

Tubular structure 62

Notch 64

Combustion tube inner cavity 66

Auxiliary support 68

Positioning hole 74

Alignment holes 76

Collar locking aperture 78

[ detailed description ] embodiments

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to FIG. 1, which is a perspective view of the pilot tube assembly 10 of the present invention, the pilot tube assembly 10 includes a burner tube assembly 12 and an electric induction device 14, and further includes a spark source, not shown. The burner tube assembly 12 is provided with a flame opening 16 at a first end 56 and a gas supply connection at an opposite second end, the first end 56 of the burner tube assembly 12 further includes a pilot cap 18 for directing a flame toward the electric induction device 14, the burner tube assembly 12 further includes a burner tube 26, the burner tube 26 has a compression fitting 28 for connecting the burner tube assembly 12 to a gas source, the pilot cap 18 is removably secured to the burner tube 26 by a securing member, which may be a collar 22 and a locking device 24, such that the pilot cap may be readily oriented.

The electrical sensing device 14 may be any suitable thermoelectric device, including a thermocouple or thermopile, among other devices that convert thermal energy into electrical energy, and when a flame is present at the flame opening 16 of the burner tube assembly 12, heat from the flame is directed to the thermoelectric device, which generates an electrical current that, if the electrical current generated by the thermoelectric device drops below a threshold value, a gas valve executes a shut-down procedure, indicating that no pilot flame is present in the pilot burner assembly 10. In some cases, the electrical sensing device 14 may also be a photovoltaic device that may utilize light emitted by a flame to generate an electrical current.

The burner tube assembly 12 is disposed substantially parallel to the electric induction device 14 and is fixedly mounted by a bracket 30. Further, the burner tube assembly 12 may be secured to a gas appliance by a bracket 30. The bracket 30 is composed of a first fixing plate 32, a second fixing plate 34 and a third fixing plate 36, respectively, and is substantially U-shaped, the first fixing plate 32 and the second fixing plate 34 are spaced apart from each other by a certain distance and extend substantially in parallel, the first fixing plate 32 and the second fixing plate 34 are connected by the third fixing plate 36, and the third fixing plate 36 is formed perpendicular to the first fixing plate 32 and the second fixing plate 34.

The first and

second retaining plates

32, 34 can include a plurality of mounting structures (38,46), generally the mounting structures (38,46) can be holes for receiving screws or other retaining structures, and the mounting structures (38,46) can further include hooks or other devices by which the pilot burner assembly 10 can be mounted and secured to a gas appliance.

The third mounting plate 36 includes a first mounting hole 50 for mounting the burner tube assembly 12 and a second mounting hole 52 for mounting the electric induction device 14. in practice, the burner tube assembly 12 and the electric induction device 14 may be mounted in either mounting hole, and the third mounting plate 36 further includes an additional hole 42 for receiving an additional component such as a spark source.

The burner tube assembly 12 is comprised of a pilot cap 18, a burner tube 26, a collar 22, and a compression fitting 28, the pilot cap 18 including a cap structure 60 and a tubular structure 62, the collar 22 and locking device 24 for securing the pilot cap 18 to the burner tube 26, the pilot cap 18 being removably secured to the burner tube 26, one or more locking holes 40 extending from an outer surface to the central bore 58, and a first end 56 of the burner tube 26 partially passing through the first mounting hole 50. In addition, the burner tube 26 may also include grooves or ridges that frictionally engage the sidewalls of the first mounting hole 50 to secure the burner tube 26.

The first end 23 of the collar 22 is larger in diameter than the second end 25, the first end 56 of the burner tube 26 extends through the first mounting hole 50 of the bracket 30, the collar 22 may be disposed on the first end 56 of the burner tube 26, and the second end 25 of the collar 22 may be coupled to the third mounting plate 36 of the bracket 30 to prevent the collar 22 from extending through the first mounting hole 50. the tubular structure 62 of the pilot burner cap 18 may be secured within the central lumen 58 of the collar 22 and, in addition, may be secured within the lumen 66 of the burner tube 26. The cowl lock apertures 40 and the collar lock apertures 78 are generally aligned, and a set screw or other locking device 24 may be passed through the lock apertures (40,78) until it frictionally engages the outer surface of the cowl 18 to hold the cowl 18 in a desired position. In addition, the tubular structure 62 to the spanwise direction 18 also includes a groove or notch 64 that may allow the tubular structure 62 to be more easily compressed when entering the collar 22 or the burner tube 26.

The pilot shroud 18 may also include a protrusion 54, the protrusion 54 configured to engage the collar 22 to prevent the pilot shroud 18 from advancing too far within the collar 22 or the burner tube 26, and the pilot shroud 18 may be rotated to direct the flame toward a desired location.

The pilot cap 18, collar 22, and burner tube 26 may be held fixed to one another using set screws or other locking devices 24, the locking devices 24 may be secured within locking holes 40 of the collar 22, and the collar 22 may include a plurality of locking holes 40 that will assist in securing the pilot cap 18 in various orientations. The locking device 24 may also be a bolt, pin, or like retaining element. The pilot burner assembly 10 can also be mounted to a gas appliance by means of a bracket 30.

The support frame 30 may further include an auxiliary support frame 68, the auxiliary support frame 68 having a plurality of alignment holes (74,76), the alignment holes (74,76) being alignable with the mounting structures (38,46) of the support frame 30, the auxiliary support frame 68 being securable to the support frame 30.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pilot burner assembly, characterized by:

the pilot burner assembly comprises a combustion tube assembly, an electric induction device and a bracket, the combustion tube assembly and the electric induction device are arranged in parallel and are respectively kept fixed by the bracket, the combustion tube assembly comprises a combustion tube, a compression fitting, a pilot burner cover and a fixing member, the compression fitting is connected with the combustion tube and is used for connecting the combustion tube assembly to an air source, and the pilot burner cover is movably fixed to the combustion tube,

the fixing component is used for connecting and fixing the combustion pipe and the combustion guide cover;

the bracket at least comprises a first fixing plate, a second fixing plate and a third fixing plate which are connected with each other to form a U shape, the first fixing plate and the second fixing plate are separated from each other by a certain distance and extend in parallel, and the third fixing plate is connected with the first fixing plate and the second fixing plate and is perpendicular to the first fixing plate and the second fixing plate;

the third fixing plate is at least provided with a first mounting hole and a second mounting hole, and the first mounting hole and the second mounting hole are respectively used for fixedly mounting the combustion tube assembly and the electric induction device;

the first fixing plate or the second fixing plate comprises at least one mounting structure for receiving a fixing device;

the pilot burner further comprises a spark source, and the third fixing plate further comprises an additional hole for fixing the spark source;

the fixing component comprises a lantern ring and a locking device, and a locking hole corresponding to the locking device is formed in the lantern ring;

the pilot burner cover comprises a cover structure and a tubular structure, the lantern ring is sleeved with the tubular structure to fixedly connect the pilot burner cover with the combustion pipe, and the lantern ring is in interference fit with the tubular structure;

the tubular structure sidewall includes a protrusion that engages the collar to determine the position of the pilot burner cap relative to the burner tube.

2. The pilot burner assembly of claim 1, wherein:

the pilot burner assembly also comprises an auxiliary support, the auxiliary support is provided with a positioning hole and is fixed on the support through the positioning hole,

the pilot burner assembly may be mounted to a gas appliance via the bracket.

3. The pilot burner assembly of claim 1, wherein:

the electric sensing device is a thermo-electric sensing device or a photo-electric sensing device.