CN212691758U

CN212691758U - Gas nozzle, nozzle assembly and industrial gas burner

Info

Publication number: CN212691758U
Application number: CN202021464789.3U
Authority: CN
Inventors: 周盘良
Original assignee: Wuxi Ruineng Electromechanical Equipment Co ltd
Current assignee: Wuxi Ruineng Electromechanical Equipment Co ltd
Priority date: 2020-07-22
Filing date: 2020-07-22
Publication date: 2021-03-12
Anticipated expiration: 2030-07-22

Abstract

The utility model discloses a gas nozzle, nozzle assembly and industrial gas combustor, this nozzle assembly includes central trachea, gas nozzle and mixed awl are installed to central tracheal one end, the other end is as the inlet end, the gas nozzle is located mixed awl and central trachea, gas nozzle and the concentric setting of mixed awl three, and gas nozzle includes the nozzle barrel, the one end opening of nozzle barrel is as the inlet end, the other end sets up the shrouding as sealed end, round gas spout has been seted up along the circumferencial direction on the inboard nozzle barrel of sealed end, the diameter of shrouding is greater than the external diameter setting of barrel and stretches out in order to form the round sealed boss of end. The nozzle assembly is ignited by direct current wind, so that flame is quickly sprayed out of the mixing cone, and the combustion efficiency is improved; and the success rate of ignition is greatly improved, and the combustion process is stable and reliable.

Description

Gas nozzle, nozzle assembly and industrial gas burner

Technical Field

The utility model belongs to the technical field of the combustor, especially, relate to a gas nozzle, nozzle assembly and industrial gas combustor.

Background

The target group of the burner is wide, and the incinerator, the smelting furnace and the ceramic kiln have the fields of forging, smelting furnace, heat treatment and the like, and the burner is essential in the industries related to heat energy. The gas burner is a kind of burner, which enables gas and air to enter a combustion zone separately or in a mixed manner to achieve stable combustion. The fuel gas includes acetylene, natural gas or propane. Gas burners have been widely used in residential and industrial fields, from ordinary kitchen stoves to hospitals, restaurants, outdoor barbecues, industrial stoves, boilers, and the like.

Gas nozzles are important components of industrial gas burners. The existing gas burner generally has the following defects:

1) the swirl air is adopted for ignition, the flame stays in the mixing cone for a long time due to the rotating airflow, the high-temperature smoke is held in the mixing cone for a long time, and the combustion is unstable;

2) the gas sprayed from the nozzle and the combustion-supporting air have poor mixing effect, which is not favorable for successful ignition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to above-mentioned problem, provide a gas nozzle to there is the gas in the gas nozzle who is used for the industrial gas combustor among the solution prior art and mixes the effect poor and be unfavorable for the successful problem of igniteing with combustion-supporting wind.

Another object of the utility model is to provide a nozzle assembly to above-mentioned problem to there is the mixed effect of burning unstability, gas and combustion-supporting wind in the nozzle assembly who solves industrial gas combustor among the prior art poor and be unfavorable for the successful problem of igniteing.

Another object of the utility model is to above-mentioned problem, provide an industrial gas burner to there is burning unstability, gas and combustion-supporting wind mixed effect poor and be unfavorable for the problem of successfully igniteing in the industrial gas burner among the solution prior art.

The utility model aims at realizing through the following technical scheme:

the utility model provides a gas nozzle, its includes the nozzle barrel, the one end opening of nozzle barrel is as the inlet end, and the other end sets up the shrouding as sealed end, sealed end is inboard has seted up the round gas spout along the circumferencial direction on the nozzle barrel, the diameter of shrouding is greater than the external diameter of barrel sets up and stretches out in order to form the round sealed boss of end.

As an optimized proposal of the utility model, the direction of the gas sprayed from the gas nozzle is mutually perpendicular to the direction of the combustion-supporting air.

As an optimized scheme of the utility model, be provided with the screw thread section of being convenient for the gas nozzle dismouting on the section of thick bamboo wall that is close to the inlet end on the nozzle barrel.

The utility model provides a nozzle assembly, its includes central trachea, gas nozzle and mixes the awl, gas nozzle and mixed awl are installed to central tracheal one end, and the other end is as the inlet end, gas nozzle is located mix in the awl and central trachea, gas nozzle and the concentric setting of mixed awl three, just gas nozzle includes the nozzle barrel, the one end opening of nozzle barrel is as the inlet end, and the other end sets up the shrouding as sealed end, sealed end is inboard has seted up round gas spout along the circumferencial direction on the nozzle barrel, the diameter of shrouding is greater than the external diameter of nozzle barrel sets up and stretches out in order to form the round sealed boss of end.

As a preferred scheme of the utility model, mix the awl from the bore grow in proper order with the tracheal link in center to the outer end, the outer tip interval of mixing the awl is provided with the bellying of a plurality of outside extension.

As a preferred scheme of the utility model, mix and be equipped with a plurality of along its conical surface spaced apart on the awl, the mixed round hole of a plurality of is from mixing awl and central tracheal link to the aperture grow in proper order of outer end.

As an optimal scheme of the utility model, mix awl and central trachea junction and be provided with the ion probe guide ring and the ignition electrode guide ring of arranging from top to bottom.

An industrial gas burner, wherein the industrial gas burner comprises the gas nozzle and/or nozzle assembly described above.

The beneficial effects of the utility model are that, gas nozzle, nozzle assembly and industrial gas combustor have following advantage:

1) the direct current wind is adopted for ignition, so that flame is quickly sprayed out from the mixing cone, the retention time of high-temperature flue gas in the mixing cone is reduced, and the combustion efficiency is improved;

2) the setting of nozzle boss not only plays the water conservancy diversion effect, can increase the dwell time of gas and air in the ignition region simultaneously, and the injection side of gas and air becomes the vertical direction, more is favorable to the mixture of gas and air like this, and the gas mixes with the air after the nozzle blowout, and along mixing awl inner wall forward, meets high-voltage electric arc and forms flame. Greatly improves the success rate of ignition and has stable and reliable combustion process.

Drawings

FIG. 1 is a schematic structural view of a nozzle assembly according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a gas nozzle according to an embodiment of the present invention.

Detailed Description

The technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. The preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only and do not represent the only embodiments. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, in the present embodiment, a nozzle assembly includes a central air tube 1, a gas nozzle 2 and a mixing cone 3, the gas nozzle 2 and the mixing cone 3 are installed at the front end of the central air tube 1, the other end is used as an air inlet end, the gas nozzle 2 is located in the mixing cone 3, the central air tube 1, the gas nozzle 2 and the mixing cone 3 are concentrically arranged, the gas nozzle 2 includes a nozzle barrel 20, one end of the nozzle barrel 20 is opened as an air inlet end, the other end is provided with a sealing plate 21 as a sealing end, a circle of gas nozzles 22 are arranged on the nozzle barrel 20 inside the sealing end along the circumferential direction, the diameter of the sealing plate 21 is larger than the outer diameter of the nozzle barrel 20 to form a circle of bosses 23 extending out of the sealing end, a thread section is arranged on the barrel wall of the nozzle barrel 20 near the air inlet end, the gas nozzle 2 is detachably assembled, the direction of the gas ejected from the gas nozzles 22 is perpendicular to the direction of the combustion air, and the direction of the arrow in fig. 1 is the direction of the combustion air.

The nozzle assembly is ignited by direct current wind, the mixing cone 3 is lightened, materials can be saved, flame can be rapidly sprayed out of the mixing cone 3, and the retention time of high-temperature flue gas in the mixing cone 3 is shortened. The gas nozzle 2 is made of heat-resistant steel, is machined on a lathe and is arranged at the front end of the central gas pipe 1. The front end of the gas nozzle 2 is sealed and provided with a boss 23, and the boss 23 not only plays a role in guiding flow, but also can increase the retention time of gas and air in an ignition area. The jetting directions of the fuel gas and the air are vertical, so that the mixing of the fuel gas and the air is more facilitated. The gas is sprayed out from the nozzle and then mixed with air, and the gas moves forwards along the inner wall of the mixing cone 3 and forms flame when meeting high-voltage electric arc.

Mix awl 3 from the link with central trachea 1 to the bore of outer end grow in proper order, mix awl 3 and central trachea 1 junction is provided with the ion probe guide ring 4 and ignition electrode guide ring 5 of arranging from top to bottom.

Mix awl 3 and have certain tapering and structure and the same conical slab of size by twelve and weld each other and form, the conical slab is by heat-resisting steel sheet stamping forming, have four mixed round holes 6 along its length direction interval arrangement on every conical slab, four mixed round holes 6 from mixing awl 3 and central trachea 1's link to the aperture of outer end grow in proper order, the outer end middle part of every conical slab outwards extends has a bellying 7, bellying 7 is in the coplanar with the conical slab that corresponds.

After long-term use mix awl 3 because of gravity and expend with heat and contract with cold take place the eccentric removal after, bellying 7 can push up on protecting the inner wall of a fire section of thick bamboo, make mix awl 3 and protect and remain certain clearance between the fire section of thick bamboo, guarantee that cold wind normally passes through, avoid protecting a fire section of thick bamboo because of local overheat deformation or burn out.

The above embodiments have been merely illustrative of the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and does not depart from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims.

Claims

1. The utility model provides a gas nozzle, its includes the nozzle barrel, its characterized in that: the one end opening of nozzle barrel is as the inlet end, and the other end sets up the shrouding as sealed end, the round gas spout has been seted up along the circumferencial direction on the inboard nozzle barrel of sealed end, the diameter of shrouding is greater than the external diameter setting of barrel stretches out in order to form the round the boss of sealed end.

2. The gas burner of claim 1, wherein: the direction of the gas ejected from the gas nozzle is perpendicular to the direction of the combustion-supporting air.

3. The gas burner of claim 1, wherein: and a thread section which is convenient for dismounting the gas nozzle is arranged on the cylinder wall of the nozzle cylinder body close to the gas inlet end.

4. A nozzle assembly, characterized by: it includes central trachea, gas nozzle and mixes the awl, gas nozzle and mixed awl are installed to tracheal one end in center, and the other end is as the inlet end, gas nozzle is located mix in the awl and central trachea, gas nozzle and the concentric setting of mixed awl three, just gas nozzle includes the nozzle barrel, the one end opening of nozzle barrel is as the inlet end, and the other end sets up the shrouding as sealed end, sealed end is inboard has seted up round gas spout along the circumferencial direction on the nozzle barrel, the diameter of shrouding is greater than the external diameter of nozzle barrel sets up and stretches out in order to form the round sealed boss of end.

5. The nozzle assembly of claim 4, wherein: the direction of the gas ejected from the gas nozzle is perpendicular to the direction of the combustion-supporting air.

6. The nozzle assembly of claim 4, wherein: and a thread section which is convenient for dismounting the gas nozzle is arranged on the cylinder wall of the nozzle cylinder body close to the gas inlet end.

7. The nozzle assembly of claim 4, wherein: the caliber of the mixing cone from the connecting end of the mixing cone and the central air pipe to the outer end is sequentially increased, and a plurality of protrusions extending outwards are arranged at intervals at the outer end of the mixing cone.

8. The nozzle assembly of claim 4, wherein: mix and be equipped with a plurality of and mix the round hole along its conical surface interval on the awl, the mixed round hole of a plurality of is from mixing awl and central tracheal link to the aperture of outer end grow in proper order.

9. The nozzle assembly of claim 4, wherein: and an ion probe guide ring and an ignition electrode guide ring which are arranged up and down are arranged at the joint of the mixing cone and the central air pipe.

10. An industrial gas burner characterized by: comprising a gas nozzle according to any of the preceding claims 1-3 and a nozzle assembly according to any of the preceding claims 4-9.