CN202359080U - Improved oil-oxygen burner - Google Patents

Abstract

The utility model discloses an improved oil-oxygen burner, comprising a copper head, wherein a plurality of oil channels are uniformly arranged in a copper head main body at intervals; the axes of a plurality of oil channels and the axis of the copper head are parallel; the copper head main body is provided with oil channel spraying holes which are communicated with the oil channels one by one in a circumferential direction; the outer wall of the head part of the copper head is a tapered face and the side wall of the head part of the copper head is provided with a plurality of teeth which are uniformly arranged at intervals; a water jacket which is connected with the burner is mounted outside the copper head and the inner wall of the end part of the water jacket is a tapered surface which is matched with the tapered surface of the head part of the copper head; and the height of each tooth is 1.25-1.30mm and the hole diameter of each oil channel spraying hole is 2.9-3.3mm. Through improvement of the head part of the burner, the aims of reducing the section area of circulation and improving a back pressure are achieved through reduction of the tooth height of each channel, so that the air flow speed can be controlled, and the phenomena that the burner cannot be ignited and undergoes flame lifting when the air flow speed is too high are avoided, and the phenomenon that the head part of the burner is damaged when the air flow speed is too low is avoided.

Description

A kind of improved oily oxygen burner

Technical field

The utility model relates to a kind of burner, relates in particular to the burner that other type of furnace under vapourizing furnace, double-section dry coal powder gasifying furnace and the hyperbaric environment is used.

Background technology

SHELL dry coal powder gasification technology is in the successful development seventies in last century by Holland; And be successfully applied to the cogeneration project; The mid-90 is introduced China, has had 23 cover vapourizing furnaces to settle China at present, and the introduction of this technology has extremely far-reaching influence to China's Coal Chemical Industry industry.This vapourizing furnace is to be raw material with coal dust and oxygen, mainly is used for producing chemical industry material synthesis gas and industrial fuel gas, has that single stove throughput is big, gasification efficiency is high, a remarkable advantage such as safety and environmental protection, and in the field of business have tangible competitive edge and a promotion potential.

Oil oxygen burner is the specific equipment of SHELL vapourizing furnace, and existing have the characteristics that very significantly monopolize by the exclusive produce and market of German The Brinkmann Corp., and equipment and spare parts price are high, make the domestic producer that respectively uses all bear bigger economic cost.The effect of this equipment is under normal pressure, to light, then with the vapourizing furnace synchronous boost to 8-10bar, and temperature in the stove is raised to synchronously 800 degree are above to be lighted the back with two coal burners and withdraw from the stove and isolate with vapourizing furnace.Pure oxygen and oil properties make that the technology operational conditions of this burner is very harsh, are slightly offset the consequence that just can cause burner to burn out.To damaging the replacing and the maintenance of burner, not only expense is high, and the domestic similar project of time chien shih that the system that particularly influences thus goes into operation has all been suffered bigger loss.Oil oxygen burner belongs to a kind of internal-mixing burner, and fuel and oxygen mix in burner inside, sprays further atomizing and burning in the process of ejection then from the burner head with certain speed.When this speed the phenomenon that burner point does not catch fire and takes off can occur during greater than oily oxygen combustionvelocity, move rapidly along the fuel direction otherwise flame then can occur, the phenomenon that tempering causes the burner head to damage appears.

Summary of the invention

The purpose of the utility model is to overcome the deficiency of prior art, provides a kind of burner that can guarantee to be difficult for by the improved oily oxygen burner of scaling loss.

A kind of improved oily oxygen burner of the utility model; It comprises copperhead; Evenly spacedly in described copperhead body have a plurality of oil ducts; The axis of described a plurality of oil ducts all with the parallel axes setting of copperhead, on described copperhead body circumferential direction, have and the corresponding one by one oil duct squit hole that is provided with that is communicated with of described a plurality of oil ducts, described copperhead head outer wall is that the conical surface and copperhead head outer wall are provided with the tooth that a plurality of even intervals are provided with; The water jacket that links to each other with burner is installed outside described copperhead; The end inwall of described water jacket is the conical surface that matches and cooperate with the conical surface of described copperhead head, and the tooth depth of described tooth is 1.25-1.30mm, and the bore dia of described oil duct squit hole is 2.9-3.3mm.

Through the burner head is improved; Reduce the passage tooth depth and reduce actual internal area and the purpose that improves back pressure to reach; Thereby can control gas velocity; The phenomenon that the burner point that prevents when gas velocity is too high to occur does not catch fire and takes off, and gas velocity is spent and tempering occurred when low and cause the damage of burner head.The heat exchange of original burner inner core adds that two passage forced-convection heat transfers of improved external jacket can shift out the heat of burner head rapidly; Strengthen the heat transfer efficiency of burner head, thereby further avoided the burner head to burn out and external jacket adopts split-type structural to be convenient to dismounting.Adopting this improved burner to move ten quadratic searches does not have any burning phenomenon, and its life-span is considerably beyond improving preceding burner (general burner life-span 2-3 time).

Description of drawings

Fig. 1 is the structural representation of a kind of improved oily oxygen burner of the utility model;

Fig. 2 is the structural representation of the copperhead of oily oxygen burner shown in Figure 1;

Fig. 3 is the left view of copperhead shown in Figure 2.

Embodiment

Below in conjunction with accompanying drawing the utility model is further described.

This oily oxygen burner is the improvement on existing nozzle structure basis.

A kind of improved oily oxygen burner like the utility model shown in the drawings; It comprises copperhead 1; Evenly spacedly in described copperhead body have a plurality of oil ducts 2; The axis of described a plurality of oil ducts all with the parallel axes setting of copperhead, on described copperhead body circumferential direction, have and the corresponding one by one oil duct squit hole 3 that is provided with that is communicated with of described a plurality of oil ducts, described copperhead head outer wall is that the conical surface and copperhead head outer wall are provided with the tooth 4 that a plurality of even intervals are provided with; Outside described copperhead, be set with the water jacket that links to each other with burner 5; The end inwall of described water jacket is the conical surface that matches and cooperate with the conical surface of described copperhead head, and the tooth depth h of described tooth is 1.25-1.30mm, and the bore dia of described oil duct squit hole is 2.9-3.3mm.

The main effect of water jacket is to constitute oxygen oil passage and the burner head is implemented cooling effect (8 among the figure is the cooling water inlet of water jacket, and 9 is cooling backwater) with burner.Preferred described water jacket and burner are for being threaded; Can avoid water jacket to be fixedly connected like this, when water jacket damages, can only cut and remove with burner; Adopt this structure after damaging appears in water jacket, can directly these parts be unloaded from oily oxygen burner and change, reduced the cost of overhaul.

Adopt the working process of this oily oxygen burner following: diesel oil 6 a plurality of oil ducts and the oil duct squit hole ejection of flowing through; Oxygen 7 mixes with diesel oil from the burner entering and at the oil duct squit hole mutually, and mixed oily oxygen flows out to spray through the gap between a plurality of teeth and gets in the gasification body of heater.

Through above improvement, oily oxygen burner back pressure rises to 3.7Mpa by 2.8Mpa, and the atomizing situation was very desirable when false material was tested, and the copperhead end is not found dropping liquid water, and water smoke is the umbrella of receiving cage, the about 1.5m of maximum diameter, the about 8m of length.

Claims (2)

1. improved oily oxygen burner; It comprises copperhead; Evenly spacedly in described copperhead body have a plurality of oil ducts; The axis of described a plurality of oil ducts all with the parallel axes setting of copperhead, on described copperhead body circumferential direction, have and the corresponding one by one oil duct squit hole that is provided with that is communicated with of described a plurality of oil ducts, described copperhead head outer wall is that the conical surface and copperhead head outer wall are provided with the tooth that a plurality of even intervals are provided with; The water jacket that links to each other with burner is installed outside described copperhead; The end inwall of described water jacket is the conical surface that matches and cooperate with the conical surface of described copperhead head, and it is characterized in that: the tooth depth of described tooth is 1.25-1.30mm, and the bore dia of described oil duct squit hole is 2.9-3.3mm.

2. improved oily oxygen burner according to claim 1 is characterized in that: described water jacket and burner are for being threaded.

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