CN1400421A

CN1400421A - Double-high burner

Info

Publication number: CN1400421A
Application number: CN02114344A
Authority: CN
Inventors: 傅学政; 梁宜家
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-08-16
Filing date: 2002-08-16
Publication date: 2003-03-05
Anticipated expiration: 2022-08-16
Also published as: CN1138944C

Abstract

The present invention relates to a double-high combustor, including three portions of air supplying portion, fuel supplying portion and varporization heating and combustion portion. As compared with existent combustor said invention possesses the following advantages: heating air to obtain high-temp. air mixing the high-temp. air with high-temp. gas to make mixed combustion, combustion temp. is high, combustion is stable, combustion is full and high in thermal efficiency, CO and NOx contents are low, its preheating vaporization chamber is placed outside of combustor, it can reduce heat quantity loss, and can increase heating varporization area, and its gas temp. is raised, so that it possesses good service ability.

Description

Double-high burner

Technical field

The present invention relates to a kind of burner, particularly a kind of environment-friendly and energy-efficient burner that utilizes high-temperature fuel gas and high temperature air mixed combustion.

Background technology

At present, three kinds of burners are arranged on the market: first kind is the liquid fuel atomization burner, and it is liquid fuel within atomizing back and normal temperature air mixed combustion; Second kind is the liquid fuel evaporation burner, it be behind the liquid fuel evaporation with normal temperature air mixed combustion; The third is a gaseous fuel burners, gas at normal temperature fuel and normal temperature air mixed combustion.The shortcoming of these three kinds of burners is: fuel and air temperature before taking fire is all lower, burning must be carried out under excess oxygen, oxygen demand is big, and flame has temperature peak in the combustion instability, burner hearth, the flame interface is arranged, the burner hearth temperature difference is big, and the burner hearth mean temperature is low, the flue-gas temperature height, the thermal efficiency is low, CO and NO _xThe content height.It is insufficient to burn, not only contaminated environment but also waste energy.

Summary of the invention

The object of the present invention is to provide a kind of double-high burner with energy-saving and environmental protection, efficient burning characteristics.

The objective of the invention is to realize: double-high burner by following approach, it comprises air feed part, part of the fuel supply and vaporization heating flame part, the structure of part of the fuel supply wherein is as follows: the end of open up claw-like fuel-supply pipe is provided with aperture, the end peripheral seal of fuel-supply pipe is equipped with the preheating vaporizer, and the other end of fuel-supply pipe merges after gauge tap connects fuel tank; The carrier pipe of boundling shape is by more than three or three, and the angle between its tube and tube is that the tube bank of isogonism constitutes; The structure of vaporization heating flame part is as follows: the elementary heating vaporizer of the last termination of carrier pipe, the lower end leads to the preheating vaporizer, elementary heating vaporizer heats the vaporizer interval with secondary and communicates, secondary heating vaporizer is with the high-temperature heating chamber interval and communicate, above-mentioned preheating vaporizer, high-temperature heating chamber, elementary heating vaporizer and secondary heating vaporizer arrange that from outside to inside they can be circle or polygon or fan-shaped.The two ends up and down of high-temperature heating chamber are separately installed with main burning release and auxiliary combustion release, have release aperture on main burning release and auxiliary combustion release.The gas supply part branch comprises the spin chamber of blower fan, airduct, gauge tap and upper shed, and spin chamber wherein is divided into inner room and mistress's double-layer structure, communicates by air admission hole between inside and outside two Room, is total on the wall between the mistress in air admission hole is distributed in, and becomes asymmetric distribution.Be connected spoiler between auxiliary combustion release and preheating vaporizer.

The present invention compares with existing burner, has following advantage:

1. the multipole heating evaporation combustion device of Cai Yonging, or liquid is vaporized fully, and be heated to form high-temperature fuel gas, or make general gas be heated into high-temperature fuel gas step by step, and simultaneously air heat being become behind the high temperature air and high-temperature fuel gas mixed combustion, burning can be carried out under hypoxia condition, oxygen demand is little, ignition temperature height, flameholding, flame does not have temperature peak in the burner hearth, no flame interface, and burner hearth has a narrow range of temperature, burner hearth mean temperature height, flue-gas temperature is low, thermal efficiency height, CO and NO _xContent is low.Sufficient combustion has not only been protected environment but also saved the energy;

2. the preheating vaporizer is placed the burner outside, can reduce the thermal loss in the heating vaporescence, increase heating vaporization area, improved fuel gas temperature;

3. adopt preheating vaporization, elementary heating vaporization, secondary heating vaporization and high temperature to heat multistage vaporization heating arrangement, heating vaporization has step by step increased gas travel, and the vaporization firing rate is more balanced, stable, the fuel gas temperature height;

Petroleum pipeline be by top have to around the aperture, the fuel that spray enter the preheating vaporizer and evenly disperseed, make the system control with controlled synchronously, controlled area charactert is big, has better applicability.

Description of drawings

Below in conjunction with accompanying drawing the present invention is described in further detail:

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the vertical view of this device.

The specific embodiment

As shown in Figure 1 and Figure 2, double-high burner of the present invention comprises air feed part, part of the fuel supply and three parts of vaporization heating flame part.

The structure of part of the fuel supply wherein is as follows: the end of open up claw-like fuel-supply pipe 8 is provided with the aperture 7 that sprays to all around, and purpose is that the liquid or the gaseous fuel that enter preheating vaporizer 5 are evenly distributed.The end peripheral seal of fuel-supply pipe 8 is equipped with preheating vaporizer 5, and the other end of fuel-supply pipe 8 merges after gauge tap 14 connects fuel tank; The carrier pipe 11 of boundling shape is to be that 120 ° tube bank constitutes by the angle between three tube and tube, and such structure can make fuel enter preheating vaporizer 5 equably;

The structure of vaporization heating flame part is as follows: the elementary heating vaporizer 3 of the last termination of carrier pipe 11, the lower end leads to preheating vaporizer 5, elementary heating vaporizer 3 heats vaporizer 2 intervals with secondary and communicates, secondary heating vaporizer 2 is with high-temperature heating chamber 1 interval and communicate, above-mentioned preheating vaporizer 5, high-temperature heating chamber 1, elementary heating vaporizer 3 and secondary heating vaporizer 2 are donut from outside to inside and distribute, the purpose of multistage vaporization heating is to increase gas travel, liquid fuel is fully vaporized, gaseous fuel progressively heats, temperature rise is more stable, and fuel gas temperature is higher; The two ends up and down of high-temperature heating chamber 1 are separately installed with main burning release 4 and auxiliary combustion release 9 by connecting leg 18, have release aperture 16 on main burning release 4 and auxiliary combustion release 9.Because preheating vaporizer 5 temperature are lower, in design, especially preheating vaporizer 5 is positioned at the outer ring of main burning release 4 and auxiliary combustion release 9, reduce the loss of heat like this, improved the internal temperature of elementary heating vaporizer 3, secondary heating vaporizer 2 and high-temperature heating chamber 1.

Wherein the gas supply part branch comprises the spin chamber 10 of blower fan 13, airduct 12, gauge tap 6 and upper shed, spin chamber 10 wherein is divided into inner room and mistress's double-layer structure, communicate by air admission hole 15 between inside and outside two Room, be total on the helix of wall in air admission hole 15 is distributed between the mistress, become asymmetric distribution, gas produces rotational flow gas by also 15 entering spin chamber 10.Auxiliary combustion release 5 is connected spoiler 17 with 5 of preheating vaporizers, the purpose of this spoiler 17 is to stop rotational flow gas to be passed through from auxiliary combustion release 5 and 5 of preheating vaporizers, guide it 1 high-temperature region to pass through, thereby improve the temperature of air from auxiliary combustion release 5 and high-temperature evaporation chamber.

Claims

1. double-high burner, it comprises the air feed part, it is characterized in that: it also comprises part of the fuel supply and vaporization heating flame part, the structure of part of the fuel supply wherein is as follows: the end of open up claw-like fuel-supply pipe (8) is provided with aperture (7), the end peripheral seal of fuel-supply pipe (8) is equipped with preheating vaporizer (5), and the other end of fuel-supply pipe (8) merges after gauge tap (14) connects fuel tank; The carrier pipe of boundling shape (11) is by more than three or three, and the angle between its tube and tube is that the tube bank of isogonism constitutes; The structure of vaporization heating flame part is as follows: the elementary heating vaporizer of the last termination of carrier pipe (11) (3), the lower end leads to preheating vaporizer (5), elementary heating vaporizer (3) heats vaporizer (2) interval with secondary and communicates, and above-mentioned preheating vaporizer (5), high-temperature heating chamber (1), elementary heating vaporizer (3) and secondary heating vaporizer (2) are arranged from outside to inside; Secondary heating vaporizer (2) is with high-temperature heating chamber (1) interval and communicate, the two ends up and down of high-temperature heating chamber (1) are separately installed with main burning release (4) and auxiliary combustion release (9), have release aperture (16) on main burning release (4) and auxiliary combustion release (9).

2. double-high burner as claimed in claim 1, it is characterized in that: the gas supply part branch comprises the spin chamber (10) of blower fan (13), airduct (12), gauge tap (6) and upper shed, spin chamber wherein (10) is divided into inner room and mistress's double-layer structure, communicate by air admission hole (15) between inside and outside two Room, be total on the wall between the mistress in air admission hole (15) is distributed in, become asymmetric distribution.

3. double-high burner as claimed in claim 1 or 2 is characterized in that: be connected spoiler (17) between auxiliary combustion release (5) and preheating vaporizer (5).

4. double-high burner as claimed in claim 1 or 2 is characterized in that: above-mentioned preheating vaporizer (5), high-temperature heating chamber (1), elementary heating vaporizer (3) and secondary heating vaporizer (2) all can be circle or polygon or fan-shaped.