CN2190232Y

CN2190232Y - Mixed gas burner

Info

Publication number: CN2190232Y
Application number: CN 93223642
Authority: CN
Inventors: 潘祖光
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-09-01
Filing date: 1993-09-01
Publication date: 1995-02-22
Anticipated expiration: 2003-09-01

Abstract

The utility model relates to a two stage mixed gas burner which is provided with two mixed chambers. A first mixed chamber is composed of a nozzle (1), a screw cap (2), an air regulating cover (3), a fixed plate (4), a central pipe (7) and an outer shell (8). The central pipe (7), the air regulating cover (3) and the fixed plate are respectively drilled with a plurality of air inlets A. A second mixed chamber is composed of the central pipe (7), an outer regulating air cap (5), the outer shell (8) and a lengthening outer shell (9). The proper position of the outer shell (8) is drilled with a plurality of air inlets B.

Description

Mixed gas burner

The present invention relates to a kind of secondary gaseous mixture burner, the especially practical secondary gaseous mixture burner that is installed on the various heating furnaces in oil field, water jacket furnace, the low-pressure boiler by natural gas and the direct mixed combustion of air.

In the industry of oil field, most of heaters and low-pressure boiler adopt common burner, and perhaps the simple and easy nozzles with steel pipe manufacturing heat with natural gas, efficiency of combustion is low, promptly waste valuable resource of natural gas, produce a large amount of flue dust again and from flue, discharge, the natural gas utilization of can not fully burning.

A lot of units just know that several years ago the Changsha produces the Yan Shi burner in the oil field, " getting profit " burner that also has West Germany to produce.Hunan Yan Shi burner can not promoted in our oil field, mainly contain following some: 1. the 0.025-0.06MPa combustion efficiency is good under the low pressure condition, and noise is below 78 decibels.Gas pressure is higher than 0.06MPa when above, and noise increases very fast, and pressure noise when 0.1MPa is above makes the end user to accept greater than 100 decibels.2. the natural gas of not handling (the moisture crude oil that contains) has flame-out phenomenon in the burning, danger close.3. flame is long shorter, can not change with instructions for use length.4. mixed combustion ratio is fixed, and can not manually align in order to reach the best combustion effect in gas pressure, purity (oil-containing is moisture) not simultaneously.5. there is individual unit the phenomenon of a spout place part to occur burning.6. price up to 1300 yuan/only.The price that West Germany produces is just higher.

The objective of the invention is the oil field secondary gaseous mixture burner that a kind of adaptability is strong, efficiency of combustion is high, rational in infrastructure, price is low, the life-span is long is provided.

Mix clean-burning purpose for reaching the natural gas secondary, this burner is provided with two mixing chambers.First mixing chamber is by nozzle, and central tube is formed, and second mixing chamber is made up of central tube and extension housing.When natural gas entered central tube with certain pressure, air just sucked to central tube from the A hole, realized that air, natural gas mix for the first time, and partially mixed gas firing expands.Because burning gases expand, then air pressure and gas increase, and the first mixing chamber gaseous mixture sprays into rapidly in the second mixing chamber extension housing.Because air-flow sprays into rapidly, and air is sucked in the second mixing chamber extension housing from the B hole, realize mixing for the second time.Through twice mixed combustion, combustion of natural gas is abundant, and flame is longer, the efficiency of combustion height.Use instrument test, O in the flue gas ₂Content 10.1%, CO content 0.0125%, CO ₂Content 6%.The air mass flow of two mixing chambers can be regulated air quantity by transferring wind lid and investigation mission outside the city or town blast cap according to the gas pressure size, makes it reach optimum combustion regime.

Secondary gaseous mixture of the present invention is 1. rational in infrastructure with the advantage of burner, and is simple, convenient processing, fabrication and installation.2. two place's intakes can be according to gas pressure and combustion gas purity (moisture oil-containing) workman's manual adjustments of different situations, and easily, the operator is easy to learn.3. efficiency of combustion height, the length of flame can be regulated as required, and noise is smaller, can not have the phenomenon that burns out burner, long service life.

Clearer in order to illustrate, we have the full sectional view of a burner as accompanying drawing.

Below in conjunction with accompanying drawing embodiments of the invention are described in further detail.

By accompanying drawing as can be known, secondary gaseous mixture of the present invention with burner by nozzle 1., nut 2., transfer the wind lid 3., fixed head 4., the investigation mission outside the city or town blast cap 5., deep bead 6., central tube 7., shell 8., 10. 9. extension housing form with fixed block.

First mixing chamber by nozzle 1., nut 2., transfer the wind lid 3., fixed head 4., 8. 7. central tube form with shell, central tube 7., transfer the wind lid 3. 4. to go up to be drilled with numerous fresh air inlet A respectively with fixed head.

Second mixing chamber by central tube 7., the investigation mission outside the city or town blast cap 5., 9. 8. shell form with extension housing, 8. shell is drilled with numerous fresh air inlet B in position.

7. then produce a negative pressure when 1. natural gas enters central tube by nozzle, at this moment natural gas and air are blended in the partially mixed gas firing in central tube exit in 7. by transferring wind lid hole A 3. to suck central tube to make air.Because burning is expanded gas, having quickened mixed combustion gas again 9. sprays to extension housing, at this moment extension housing 9. and central tube produce a negative pressure again between 7., air sucks inwards from the B hole that 8. shell is gone up again, air and mixed combustion gas are for the first time further mixed in 9., Here it is second mixing chamber at extension housing.Increase the mist ejecting force simultaneously, made flame fully burning outside extension housing outlet 9., reached the efficiency of combustion height.This combustion method does not influence the burner life-span, can see from the B hole during work central tube 7. the flame in exit in a segment limit, burn the blue look flame of extension housing outlet ejection.Through several hours use, the aluminium paint color that the surface is brushed did not all have to become.

The present invention is applied directly on the cellar for storing things stoves such as existing heating furnace, water jacket furnace, low-pressure boiler, needn't change original mounting structure. Several units are on probation at 500,000 kilocalorie heating furnaces, 2 tons of low-pressure boilers through the oil field. The full-time technical staff of technical supervision center energy-saving section of test unit tests boiler internal combustion efficient with relevant instrument, and with former ordinary burner contrast, boiler heating is fast, comprehensive effectiveness height, solar term amount 0.48 mark m³/ h. CO content in smoke 0.0125%, O₂Content 10.1%, CO₂Content 6%. Meeting national standard, is a kind of desirable gas burner.

Claims

1, a kind of secondary gaseous mixture burner, it comprises nozzle, central tube and extension housing composition, it is characterized in that this burner has two mixing chambers.

2, secondary gaseous mixture burner according to claim 1, it is characterized in that first mixing chamber by nozzle 1. nut 2. transfer wind cover 3. fixed head 4. central tube 7. 8. form with shell, central tube 7., transfer the wind lid 3. with on the fixed head to be drilled with numerous fresh air inlet A respectively.

3, according to the secondary gaseous mixture burner described in the claim 1, it is characterized in that second mixing chamber by central tube 7. with the investigation mission outside the city or town blast cap 5., 9. 8. shell form with extension housing, 8. shell is drilled with numerous fresh air inlet B around in position.