CN2144768Y

CN2144768Y - Heavy oil steam medium atomized oil spray gun

Info

Publication number: CN2144768Y
Application number: CN 92212165
Authority: CN
Inventors: 王京
Original assignee: Individual
Current assignee: Individual
Priority date: 1992-01-29
Filing date: 1992-01-29
Publication date: 1993-10-27
Anticipated expiration: 2002-01-29

Abstract

The utility model discloses a heavy-oil steam-medium atomized-oil-spray gun for an industrial furnace, comprising a machine body and a core body. An oil channel is arranged in the core body, one end of the oil channel is communicated with an oil inlet pipe, and the other end is connected with an oil spray hole. An air channel is arranged between the core body and the machine body, one end of the air channel is communicated with an air inlet pipe, and the other end is connected with an air spray hole. A nozzle is arranged on a machine head, a medium mixing chamber is arranged between the nozzle and the oil spray hole, and the air spray hole is communicated in the tangential direction with the medium mixing chamber. The steam can be sprayed with the tangential direction into the medium mixing chamber through the air spray hole, can be uniformly mixed with the fuel oil by using the rotary speeding-up method, and the fuel oil can be preheated and the steam then can spray, atomize and combust. The effect of mixing, atomizing and combusting can be enhanced, the fire can be ignited in a cool furnace, and the utility model has the advantages of energy-saving performance and simple structure.

Description

Heavy oil steam medium atomized oil spray gun

The utility model relates to a kind of oil gun that makes heavy oil atomizing and ejection burning.

The oil gun of used for industrial furnace or nozzle, when oil spout, burning, people often utilize pressed gas or steam as medium oil to be atomized, and fuel spray is changed into oil or fat particles, to reach the purpose of completing combustion.The burner of inferior heavy oil " burning " of the patent No. 87212640 discloses a kind of exterior mixing heater burner that utilizes pressure-air or high steam as atomizing medium.This burner is made of body and core body two parts, and core body is loaded in the body, and oily passage is arranged in the core body, and the gas passage is arranged between core body and the body.The logical oil inlet pipe of oil passage one end, another termination nozzle opening; Gas passage one end leads to air inlet pipe, and the other end leads to fumarole.Fumarole is positioned at the nozzle opening outer ring, all communicates with engine body exterior.Via the fuel oil of oily passage,,,, spray to fuel oil, with oil atomization, to reach the purpose of fuel oil completing combustion near burning by the fumarole ejection via the steam of gas passage by nozzle opening ejection and burning.This vapour that carries out outside body, oil mix, atomizing claims the exterior mixing structure.This burner needs the steam of elevated pressures for satisfying mixed atomizing outside vapour, the oil, thereby the energy consumption height, and because the time of vapour, oil mixing is very short, the also abundant atomizing of part elaioleucite just enters burning, influences completing combustion.In addition, vapour, oily incorporation time weak point, steam is not enough to the preheating of oil, needs the burner hearth preheating can be lighted a fire and operate as normal.

The purpose of this utility model provides a kind of 0.2MPa that can utilize with the steam of the upward pressure oil gun as the heavy oil atomizing medium, realizes that with comparatively simple structure homogeneous media sneaks into heavy oil, and the mode with the decompression atomizing reaches heavy oil atomizing effect preferably then.

The technical solution of the utility model describes according to Fig. 1, Fig. 2.The utility model is established spout ［ 2 ］ in Oil gun head ［ 1 ］ on the basis of prior art, establish medium mixing chamber ［ 3 ］ between spout ［ 2 ］ and nozzle opening ［ 5 ］, and spout ［ 2 ］ and nozzle opening ［ 5 ］ communicate with medium mixing chamber ［ 3 ］; The fumarole ［ 13 ］ that communicates with the gas passage tangentially communicates with medium mixing chamber ［ 3 ］, sees Fig. 2.Steam tangentially sprays into the medium mixing chamber by fumarole ［ 13 ］, evenly mixes with the fuel oil that sprays into by nozzle opening ［ 5 ］ in the mode that rotation is quickened, and then through spout ［ 2 ］ decompression atomizing ejection, and burning, can improve mixing, atomizing, effect of combustion.

Because the utility model is provided with the medium mixing chamber in oil gun, steam mixes with fuel oil with the rotation accelerated mode, the steam of lower pressure can be mixed, fully with fuel oil, reach the purpose that improves atomizing and combustion efficiency, and when mixing chamber mixes, steam promptly carries out preheating to fuel oil and oil gun, but the black furnace igniting, energy savings, oil, the vapour pressure that can bear in the certain limit change, working condition is stable, and is simple in structure.

Embodiment.Fig. 1, Fig. 2 have provided the detailed structure of embodiment, and Fig. 2 is the F-F cutaway view of Fig. 1.This example is pressed Oil gun head ［ 1 ］, atomizing piece ［ 4 ］, mixed block ［ 6 ］, core body ［ 8 ］ and body ［ 11 ］ bulk-breaking and is made the back assembling, and body ［ 11 ］ is gone up filling connection ［ 12 ］ and vapour joint ［ 9 ］, and sealing ring ［ 7 ］, ［ 10 ］ are outsourcing piece.Spout ［ 2 ］ and nozzle opening ［ 5 ］ are on same axis, and the sectional area of spout ［ 2 ］ satisfies oil, the mixed decompression ejection of vapour greater than 30～70% of nozzle opening ［ 5 ］ sectional area, forms atomizing effect preferably; Medium mixing chamber ［ 3 ］ is a conical cavity, and awl end is towards spout ［ 2 ］, make the steam that tangentially sprays into swimmingly rotating flow to spout ［ 2 ］.With the copper washer sealing, the 5MPa withstand voltage test is carried out in oily joint, vapour joint and body welding between Oil gun head and atomizing piece, the body.This example connects the above vapour source of 0.2MPa, 0.25～0.5MPa pressure oil-source.

Claims

1, used for industrial furnace heavy oil steam medium atomized oil gun, constitute by body and core body, core body is contained in the body, oily passage is arranged in the core body, this oil passage one end leads to oil inlet pipe, another termination nozzle opening, the gas passage is arranged between core body and the body, this gas passage one end leads to air inlet pipe, another termination fumarole is characterized in that spout [2] is arranged in the Oil gun head [1], between spout [2] and nozzle opening [5] medium mixing chamber [3] is arranged, spout [2] and nozzle opening [5] communicate with medium mixing chamber [3], and fumarole [13] tangentially communicates with medium mixing chamber [3].

2, according to the described oil gun of claim 1, it is characterized in that spout ［ 2 ］ and nozzle opening ［ 5 ］ on same axis, the sectional area of spout ［ 2 ］ is greater than 30～70% of nozzle opening ［ 5 ］ sectional area.

3, according to claim 1 or 2 described oil guns, it is characterized in that medium mixing chamber ［ 3 ］ is a conical cavity, its awl end is towards spout ［ 2 ］.