WO1995033957A1

WO1995033957A1 - Apparatus for complete combustion

Info

Publication number: WO1995033957A1
Application number: PCT/KR1994/000064
Authority: WO
Inventors: Kwangsoo Hyun
Original assignee: Kwangsoo Hyun
Priority date: 1994-06-08
Filing date: 1994-06-08
Publication date: 1995-12-14
Also published as: JPH10507819A; AU6857294A

Abstract

This invention provides variety of complete combustion apparatus or modular unit to be installed at a portion of incineration/combustion chamber of incinerator furnaces, boilers, and other equipments. It is obvious that the complete combustion can be achieved with an apparatus/modular unit wherein the incineration/combustion chamber is sectored into a few combustion compartments confined by circumferentially distributed radially laid out single-air water pipings/double-air water pipings (11, 12) in multi-cycle mode and also in multi-stages, wherein the compressed air is supplied through air jet nozzles (19) distributed in radial direction on each air piping of the integral air-water piping resulting in provision of effects of suction, inversion of waste materials or particles, whirling flow, and airborne capturing. The waste materials/combustible masses or gases confined in each compartment is circulated airborne by the air jet curtain blown up and down in the circumferential direction while being burnt confined in each combustion compartment by the centrifugal forces applied to the mass contained therein until complete combustion process is made, and then gases not containing mass are allowed to escape from that compartment through inner central region of incineration/combustion chamber by the entrainment effect of air jets through a few jet nozzles densely distributed on the inner region of the air piping of the integral air-water piping so that complete combustion can be achieved as well as the elimination of dump stacking problem on the lower region or on the fire grate of incineration chamber so that perfectly transparent flue gas exhaustion is obvious to be observed at the exhaust chimney.

Description

APPARATUS FOR COMPLETE COMBUSTION

TECHNICAL FIELD The present invention relates to an apparatus for complete combustion of municipal and industrial refuse and of flue gases of the combustion equipments, which can be used 1n the lower sector of Incineration chamber of incinerator furnaces, in the malnbody of the boilers, and downstream of other equipments where complete combustion 1s needed. The objective of this Invention 1s to enhance the speed of Incineration/combustion and the combustion efficiency by blocking the escape of soot, dusts, and other Incompletely burnt particles and gases out of incineration/combustion chamber of any devices of coolant water jacket configuration wherein combustion process 1s carried out 1n the complex mode of 1ncinerat1on/combust1on phenomena of suction, whirling flow, inversion, and airborne capturing by use of radially protruding composite air-water pipings laid out in circumferential direction 1n multi-cycle and also 1n multi-stage configuration into the Interior of the Incineration/combustion chamber.

BACKGROUND ART

Up to the present time, the fire grate employed 1n the small and medium size municipal and Industrial refuse incinerator furnaces is of plain circular plate type or square rectangular type lattice. Under this design, waste materials dumped thereon are stacked so high that rigorous air supply into the Interior of stacked waste materials is not made so that speedy Incineration and complete combustion are hard to get mainly due to lessened specific oxygen contact area and short retention time of dusts and Incompletely burnt particles flying, and combustible gases generated 1n the incineration chamber. The air supply nozzle openings of the conventional design for small and medium size incinerator furnaces are configured such that those are distributed vertically ( 1n z direction ) In 6, 8, ... rows on the Inner skin of the Incineration chamber with air supply duct submerged 1n the coolant water jacket 1n between the Inner and outer skin of the furnaces. In order to achieve turbulent whirling flow in the chamber, nozzle orientation 1s made such that the air jet vector therethrough makes certain angle, say 30 deg. , with respect to r axis in case a cylindrical coordlate system is adopted to the vertical axis of the cylindrical Incineration chamber. With this design of nozzle orientation, however, refuse stacking problem 1n the chamber has been playlg one of the major hindrances to the effective incineration of refuse materials dumped 1n the Incineration chambers and also to the achievement of the complete combustion. Even 1n the mass refuse burning incinerators with square planform, air supply nozzle layout configuration to achieve elongated retention time of the combustible gases and particles is resctMcted to walls of the incineration chamber due to the vulnerability of the protruded nozzles 1n the chamber to the excessive furnace operating temperatures. Assocated with these problems, the conventional furnace system designs has been focused on the taking out of the unburned particles and gases downstream of the furnace by putting filter bags, by employing electric precipitators, and by other means tackling those outside of the furnace, not 1n the Incineration chamber. Under these circumstances, prevention of unburnt particles and Incompletely oxidated gases from coming out of the Incineration chamber 1s the key design concept to the cost-effective system of Incinerator furnaces. In order to overcome these problems, the present Invention as by having air supply nozzles on the air piping of the rigorous and positive structural configuration in the Incineration chamber provided with structural Integrity under high operating temperatures as by having coolant water flow therethrough was devised.

DISCLOSURE OF INVENTION The present invention 1s intended to overcome the above described disadvantages of refuse dump stacking problem, and the Incomplete combustion of combustible gases and dust particles due to short retention time of the flue gases 1n the 1nc1nerat1on/combust1on chamber. The Invention provides an array of Integral composite a1r- water pipings drcumferent1ally laid out 1n various cyclic mode at one elevation and also 1n multistage configuration whereby the Incineration/combustion chamber of Incinerator furnaces, boilers, or other combustion related equipments are virtually divided Into a number of chamberlets wherein complex Incineration/combustion modes of refuse shred or gas suction, generation of turbulent whirling air flow, incineration of combustible materials and dusts upside down, and combustion of combustible substances under the condition of airborne capturing by the formation of clrcumferentlally fluctuating air jet curtains in each chamberlet with air jets supplied through nozzles radially distributed on each of the air piping of Integral composite single-air single-water piping or double-a1r single-water piping array. Shown in this application are composite single-air single-water piping and double-air single-water piping as two preferred embodiments to 4-stage 4-cycle mode of the invention.

As either one or both of the number of stages or of cycles a stage increases, the performance of the apparatus is obviously believed to be Improved drastically. On the other hand, composite mult1-a1r single-water piping may readily be utilized from the teachings of this embodiment of the invention to obtain various air flow characteristics to achieve complete combustion in other configurations in cylindrical shape Incineration/ combustion chamber and also 1n other geometrical shape chambers.

BRIEF DESCRIPTION OF DRAWINGS These and other objects, features and many of the attendant advantages of this Invention will be appreciated more readily as the same become better understood from a reading of the following detailed description when considered in connection with the accompanying drawings, wherein like parts 1n each of the several figures are Identified by the same reference character optionally with alphabetical suffix thereto, and wherein : FIG- 1 1s a top plan view of an incinerator furnace wherein a 4- cycle mode preferred embodiment of the present invention is constructed ; FIG. 2 1s a front plan view of the embodiment of FIG. 1 ; FIG. 3 1s a top plan view of an Incinerator furnace wherein a 6- cycle mode preferred embodiment of the present invention 1s constructed ;

FIG. 4 1s a front plan view of the embodiment of FIG. 3 ; FIG. 5 1s a top plan view of a incinerator furnace wherein a 8-cycle mode preferred embodiment of the present invention is constructed ;

FIG. 6 is a front plan view of the embodiment of FIG. 5 ;

FIG. 7 1s a cross section of a 4-cycle mode embodiment of the Invention wherein torus type air distribution chamber 1s employed ;

FIG. 8 is a cross section of a 4-cycle mode embodiment of the Invention wherein air distribution hoop chamber 1s employed according to the present Invention and taken through plane 8-8 of FIG. 2 ;

FIG. 9 is a developed cross section of 4-stage 4-cycle mode single- air water piping array showing the orientation of the air jet nozzles and 1s taken from inside of the Incineration chamber ;

FIG. 10 1s a longitudinal section of a preferred embodiment and taken through plane 10-10 of FIG. 7 ;

FIG. 11 1s a longitudinal section of a preferred embodiment and taken through plane 11-11 of FIG. 8 ;

FIG. 12 1s a developed cross section of 4-stage 4-cycle mode single- air water piping array showing the orientation of air jet nozzles and is taken from Inside of the Incineration chamber ;

FIG. 13 1s a cross section of a 4-cycle mode embodiment of the Invention wherein torus type air distribution chamber 1s employed ;

FIG. 14 1s a cross section of a 4-cycle mode embodiment of the invention wherein air distribution hoop chamber 1s employed according to the present invention and taken through plane 14-14 of FIG. 2 ;

FIG. 15 1s a developed cross section of 4-stage 4-cycle mode double- air water piping array showing the orientation of the air jet nozzles and taken from inside of the incineration chamber ;

FIG. 16 is a longitudinal section of 4-stage preferred embodiment and taken through plane 16-16 of FIG. 13 ;

FIG. 17 1s a longitudinal section of 4-stage preferred embodiment and taken through plane 17-17 of FIG. 14 ;

FIG. 18 is a developed cross section of 4-stage 4-cycle mode double- air water piping array showing the orientation of air jet nozzles and taken from inside of an embodiment of the present Invention ;

FIG. 19 1s a planform view of the modular 4-cycle mode embodiment of the invention wherein torus type air distribution chamber 1s employed

FIG. 20 is a longitudinal sectional view of FIG. 19 ;

FIG. 21 is a planform view of the modular 4-cycle mode embodiment of the invention wherein another embodiment of air distribution hoop chamber 1s employed ; and,

FIG. 22 1s a longitudinal section showing another water jacket configuration of the Invention.

BEST MODE FOR CARRYING OUT THE INVENTION Referring now to FIG. 1 and 2, a top plan view and front plan view of a modular Incinerator furnace is shown respectively which comprises ^a 4-cycle mode embodiment of the merry-go-round agitation fire grate module, a 4-cycle mode embodiment of the present invention on 1t, and a dust collector unit on the right hand side wherein a cyclone separator 1s nested together with ancillary devices attached thereto.

Compressed air generated by a blower 1a is supplied to air distribution chamber A 6a through primary air supply piping 2a and secondary air supply piping 4a,4b with main air plenum 3a in between wherein supplied air is equally divided. Referring now to FIG. 3 and 4, a top and front plan view of an Incinerator furnace is shown respectively which 1s composed of a 6- cycle mode embodiment of the MGR fire grate module and a 6-cycle mode embodiment of the present Invention mounted thereon. One of the differences between the embodiment of FIG. 1 and 2 and of the present 6-cycle mode one 1s that the number of secondary air supply piping 4a,4b,4c is three compared with two of the previous one.

Referring now to FIG. 5 and 6, a top and front plan view of an Incinerator furnace 1s shown respectively which is composed of an 8- cycle mode embodiment of the MGR fire grate module and an 8-cycle mode embodiment of the present Invention mounted on top of 1t. The angular spacing between each of secondary air supply piping 4a,4b,4c,4d is 90 deg. compared with 180 deg. and 120 deg. for 4-cycle mode embodiment of FIG. 1 and 2 and for 6-cycle mode embodiment of FIG. 3 and 4 respectively.

Referring to FIG. 7, a cross section shows an 4-cycle mode embodiment of the Invention with the view of two segments of torus plenum 5a,5b, s1ngle-a1r water pipings laid out radially at 90 deg. angular Interval, a coolant water manifold support body 7a at the center of the Incinerator furnace, and downstream coolant waterjacket 8 in between the Inner and outer skin of the apparatus. The supply of compressed air 1s made from torus plenum 5a to each of the a1r piping of s1ngle-a1r water piping 11a via connection piping 10a ( shown 1n FIG. 10 ) which connects torus plenum 5a and air piping of single-a1r water piping 11a and the coolant water channel connection between each water piping 21a of single-air water pipings through coolant water manifold support body 7a located at the center of the embodiment of the invention and wherein one central water channel of coolant water manifold support body 7a with four peripheral water channels of coolant water manifold support body 23a,23b,23c,23d laid out 1n the circumferential direction thereof. Additionally, the cleaning up of the air jet nozzle 19a,19b and interior surface of air piping of single-air water piping 11a may be made through the outer radial end of air piping, whereto clean-up access cap 13 with one end threaded 1s mounted.

FIG. 8 shows a cross section taken through 8-8 of FIG. 2 of a 4- cycle mode embodiment of the invention wherein torus plenum 5a of FIG. 7 is replaced with air distribution chamber A 6a for simplicity of the manufacturing processes resulting in the elimination of the connection piping 10a,10b and clean-up access cap 13 as well as saving in length of the air piping of single-a1r water piping 11a. This embodiment of air distribution chamber does not allow cleaning up of the air jet nozzle 19a,19b and Interior surface of the air piping of s1ngle-a1r water piping 11b. The accessablHty to the interior cavity of air piping of single-air water piping 11b may be provided with access caps to be located at the cross point of each of the axis of the air piping °f s1ngle-a1r water piping 11b and the outer hoop plate of air distribution chamber A 6a. Where the accessablHty to the Interior of air-supply piping 1s a must as 1n the Incineration of waste materials such as plastic materials, the embodiment of torus plenum 5a,5b 1s desirable while the embodiment of air distribution chamber A 6a,6b,6c 1s optionally adopted as the air distribution device as 1n the case of Incineration of other waste materials from which melt 1s not generated during the process of incineration. FIG. 9 is a cross section of 4-stage 4-cycle mode single-air water piping array developed 1n circumferential direction showing various orientation of air jet nozzle 19a,19b taken from the center 1n the positive radial direction when the cylindrical coordinate system 1s applied at the axis of the Incineration chamber 14 of the embodiment of this Invention. As is clearly Illustrated by the orientation of the air jet vectors 1n the figure, the incineration by clockwise whirling air flow 1s made 1n the first compartment confined by four composite single-air water pipings of first stage single-air water pipings 15 and by another four of second stage s1ngle-a1r water pipings 16 with phase angle shift of 45 deg. in either z direction ; that by inversion of waste materials due to the generation of vorticity caused by the opposition of two whirling flow rotation vectors 1n the second compartment confined by four composite slngle- air water pipings each of second stage single-a1r water pipings 16 and of third stage single-air water pipings 17 with phase angle of 45 deg. shifted back 1n z direction to that of the composite single-air water pipings of first stage single-air water pipings 15 ; and that by counterclockwise whirling air flow 1n the third compartment confined by the four composite s1ngle-a1r water pipings each of third stage single-air water pipings 17 and of fourth stage single-air water pipings 18 with the same phase angle as with those of four composite s1ngle-a1r water pipings of second stage single-air water pipings 16. The orientation of air jet vectors 1n each of 8 single-air water pipings of first stage s1ngle-a1r water pipings 15 and third stage s1ngle-a1r water pipings 17 1s 30 deg. downward while those 1n each of 8 single-air water pipings of second stage single-air water pipings 16 and fourth stage single-air water pipings 18 30 deg. upward with respect to the horizontal line. A few, preferably two or three, air jet nozzle 19b on air piping of s1ngle-a1r water piping 11 1n first stage s1ngle-a1r water pipings 15 and third stage s1ngle-a1r water pipings 17 are laid out in the vicinity of the axis of Incineration chamber 14 so that only completely combusted fume escapes from the first compartment confined by first stage single-air water pipings 15 and second stage single-air water pipings 16 and from the third compartment confined by third stage s1nglβ-a1r water pipings 17 and fourth stage s1ngle-a1r water pipings 18. Here, the preferable variation of air jet vector through air jet nozzle 19b 1s to be 1n such a way that the magnitude of angular orientation of the air jet vector with respect to the horizontal line diminishes 1n radial direction. FIG. 10 is a longitudinal section of 4-stage 4-cycle mode preferred embodiment and taken through plane 10-10 of FIG. 7. wherein how the coolant water passage 1s made. The coolant water from the fire grate upper water jacket of an embodiment of my copendlng patent application is driven into upstream coolant water jacket 9 through four pieces of water channel bracket 28a,28b,28c,28d ( Shown 1n FIG. 19 ) according to this 4-cycle mode embodiment ; and eventually into downstream coolant waterjacket 8 through water piping 21a of fourth stage single- air water pipings 18 and of second stage single-air water pipings 16 via central water channel of coolant water manifold support body 7a of FIG. 7, and through water piping 21a of third stage single-air water pipings 17 and of first stage s1ngle-a1r water pipings 15 via peripheral water channels of coolant water manifold support body 23a,23b,23c,23d of FIG. 7. The lower flange 1n this embodiment 1s. for mating with upper flange of the Merry-Go-Round Agitation F1re Grate Module with four pieces of ring type washers for watertlghtness 1n between them. The present Invention may be applied to the conventional Integral type cylindrical Incinerator furnaces of water jacket configuration 1f various air distribution chamber/plenum 1s constructed outside of the outer skin of the Incinerator furnaces.

FIG. 11 1s a longitudinal section of 4-stage preferred embodiment and taken through plane 11-11 of FIG. 8 and the coolant water passage 1s Identical to that described 1n the description for FIG. 10.

FIG. 12 1s a clrcumferentially developed cross section of 4-stage 4- cycle mode s1ngle-a1r water piping array showing the orientation of air jet nozzles and taken from Inside of an embodiment of the present Invention. The difference between the s1nglβ-a1r water piping array of FIG. 9 and FIG. 12 is that the line vector connecting the axis of water piping 21a and of air piping of s1ngle-a1r water piping 11 makes zero angle with respect to the horizontal line 1n the embodiment of FIG. 9 while 1t does certain angle 1n the embodiment of FIG. 12 so that the more versatile "inertlal" angular orientation of air jet nozzle 19a,19b may be achieved by the combination of angular orientation of the line vector connecting the axis of water piping 21a and of air piping of s1ngle-a1r water piping 11 with respect to the horizontal line and that of air jet nozzle 19a,19b about the axis of air piping of s1ngle-a1r water piping 11 with respect to the line vector connecting the axis of water piping 21a and of air piping of s1ngle-a1r water piping 11, which may be called "Relative" orientation. FIG. 13 1s a cross section of an 4-cycle mode embodiment of the Invention wherein torus type air distribution chamber 1s employed. The cross section shows an 4-cycle mode embodiment of the Invention with the view of two segments of torus plenum 5b, double-a1r water pipings laid out radially at 90 deg. angular interval, a coolant water manifold support body 7 at the center of the Incinerator furnace, and downstream coolant water jacket 8 in between the Inner and outer skin of the Incinerator furnace. The supply of compressed air 1s made from torus plenum 5b to each of the air piping of double-a1r water piping 12a via connection piping 10a,10b ( shown in FIG. 16 ) which connects torus plenum 5b and air piping of double-a1r water piping 12a and the coolant water channel connection between each water piping 21b of double-air water pipings through coolant water manifold support body 7 located at the center of the embodiment of the invention and wherein one central water channel 22 of coolant water manifold support body 7a with four peripheral water channels of coolant water manifold support body 23a,23b,23c,23d laid out in the circumferential direction. Additionally, the cleaning up of the air jet nozzle 19a,19b and interior surface of air piping of double-a1r water piping 12a may be made through the outermost port whereto clean-up access cap 13 with one end threaded 1s mounted.

FIG. 14 1s a cross section taken through plane 14-14 of FIG. 2 wherein a 4-cycle mode embodiment of the Invention with torus plenum 5b replaced with air distribution chamber A 6a for elimination of the connection piping 10a,10b and clean-up access cap 13 as well as savings 1n length of the air piping of double-air water piping 12a. FIG. 15 1s a drcumferentially developed cross section of 4-stage 4- cycle mode double-air water piping array taken from the center, of Incineration chamber 14 1n the positive radial direction and showing various orientation of air jet nozzle 19. As 1s clearly Illustrated by the orientation of the a1r jet vectors in the figure, the Incineration by counterclockwise whirling air flow 1s made 1n the first compartment confined by four composite double-a1r water pipings of first stage double-a1r water pipings 24 and by another four of second stage double-air water pipings 25 at phase angle shift of 45 deg. in either z direction with respect to that of four composite air water pipings of first stage double-air water pipings 24 ; that by clockwise whirling air flow 1n the second compartment confined by four composite double-air water pipings of second stage double-air water pipings 25 and by those of third stage double-a1r water pipings 26 at phase angle shifted back to that of 4 double-a1r water pipings of second stage double-a1r water pipings 25 ; that again by counterclockwise whirling air flow in the third compartment confined by four composite double-a1r water pipings of third stage double-a1r water pipings 26 and by those of fourth stage double-air water pipings 27 1n phase of that of 4 double-a1r water pipings of second stage double-air water pipings 25 ; and Incineration of combustibles upside down due to the vortlcities generated at the boundary surface by the opposition of vortldty vectors .for each two adjacent incineration compartments. Eventually, this embodiment of doublβ-a1r water pipings as compared with the embodiment of s1ngle-a1r water pipings provides more air and higher Incineration capacity for a given Incineration chamber volume through elongated retention time 1n the incinerat on chamber resulting 1n higher combustion efficiency. In other words, less volumetric Incineration chamber 1s sufficient enough for the same incineration capacity compared with that wherein s1ngle-air water pipings are employed. FIG. 16 is a longitudinal section of 4-stage 4-cycle mode embodiment taken through plane 16-16 of FIG. 13, left section at 202.5 deg. position and right one at 337.5 deg. position, wherein the coolant water passage basically Identical to that in FIG. 10 1s shown. One of the differences associated with welding position of the embodiment of connection piping 10a,10b to torus plenum 5b between an embodiment using single-air water pipings of FIG. 10 and that using double-air water pipings of FIG. 16 is that connection pipings 10a, and 10b are in vertical line for this embodiment while those for an embodiment of FIG. 10 has offsets 1n circumferential direction corresponding to the projected distance on the horizontal surface between the axes of air piping of s1ngle-a1r water piping 11a.

FIG. 17 1s a longitudinal section of 4-stage 4-cycle mode preferred embodiment taken through plane 17-17 of FIG. 14 and the coolant water passage is basically identical to that described in the description for FIG. 10. FIG- 18 1s a clrcumferentlally developed cross section of 4-stage 4- cycle mode double-a1r water piping array showing the orientation of air jet nozzles and taken from the center of incineration chamber 14 1n the positive radial direction and showing various orientation of air jet nozzle 19a,19b. The inertial/absolute orientation of air jet nozzles 19a,19b on air piping of double-air water piping 12 of double-air water pipings in each stage 1n this embodiment is Identical to that shown in FIG. 15. However, the line vector connecting the axis of water piping 21b and of air piping of double-air water piping 12 makes zero angle with respect to the line vector connecting the axis of water piping 21b and of air piping of double-air water piping 12b as 1s the case of the s1ngle-a1r water piping embodiment of FIG. 12. 5 FIG. 19 1s a planform view of a modular 4-cycle mode embodiment of the Invention wherein torus type air distribution chamber and double- air water pipings are employed. The modulation of this apparatus 1s made by addition of module upper flange 29 whereon 8 pieces of water jacket connection port 30a,30b,30c,... ,30h machined according to the

10 this 4-cycle mode embodiment of the invention to each upper end of inner and outer skin of the Incineration chamber upstream coolant water jacket 9, and torus plenum flange 31a,31b to torus plenum 5b. As has already been described 1n the description of the coolant water passage for an embodiment of FIG. 10, the coolant water 1n downstream

-_jc coolant water jacket 8 is driven Into the upper water jacket thereof through water jacket connection port 30a,30b,30c,... ,30h while maintaining watertlghtness between module upper flange 29 and upper flange to be mated with module upper flange 29 with 8 pieces of ring type seal washer 1n between to be nested 1n 8 places of seal washer

2Q seat concentrically countersunk on mutually facing surfaces of each flange with respect to the axis of water jacket connection port 30a,30b,30c,... ,30h. The present embodiment of complete-combustion apparatus module may be applied to the water boilers, to the upstream of the exhaust stack, as well as to the incineration furnaces.

₂₅ FIG. 20 1s a longitudinal sectional view of 4-stage 4-cycle mode embodiment taken through 20-20 of FIG. 19. showing another embodiment, coolant water manifold support body 7b, of single water passage to coolant water manifold support body 7b.

FIG. 21 is a planform view of the modular 4-cycle mode embodiment of the invention wherein torus plenum 5a,5b 1s replaced with air distribution chamber B 32, which 1s another embodiment of air distribution chamber A 6a.

Finally, FIG. 22 1s a longitudinal section showing another embodiment of coolant water flow passage to the Invention wherein the coolant water flows in water piping 21b of all of the double-a1r water piping stages in the negative radial direction by changing the elevation of ring baffle plate 20 and heated coolant water and possibly generated steam escapes through hot water and steam exhaust piping 33 which connects downstream coolant water jacket 8 in between upper and lower skin Hds and coolant water manifold support body 7b.

INDUSTRIAL APPLICABILITY

According to the present Invention as described above in detail, refuse stacking problem caused by dumping 1s fundamentally eliminated. The increase or decrease in the number of stages of single-a1r water pipings or double-air water pipings and of said pipings in each stage ^mav be made depending on the characteristics of waste materials to be taken care of, on the bore size of the incineration chamber, and also on the need for Improved dlscretlzed angular symmetry.

Additionally, modulated embodiment of this Invention by employing upper and lower flanges can be readily applied to a sector of the boilers, downstream of the combustion devices, upstream of exhaust smoke stack as well as to incinerator furnaces for complete combustion of unburnt particles, dusts, and other combustible gases. A further feature of this invention associated with composite air supply piping utilizing combination of multiple air supply pipes and single water piping is that a wide spectra of air flow pattern can be made by constructing multiple air pipes distributed at constant or random angular interval along the line of circle whose center 1s at the axis of the water pipe accommodating those satellite air pipes.

While the specific embodiment of the Invention described is designed for use with horizontally laid out composite a1r-water pipings, 1t 1s believed obvious to those skilled 1n the art that other modular unit as well as integral configuration readily can be employed for the construction of other system for complete combustion as well as in the design of heat exchangers.

Having described one embodiment each of 4-stage 4-cycle mode single- air water piping and double-a1r water piping array with one embodiment to the cross section of the coolant channel geometry 1n the composite a1r-water piping 1n accordance with the Invention, It 1s obvious that other modifications and variations of the cross section of the coolant piping will be suggested to those skilled 1n the art 1n the light of the above teachings. It 1s therefore to be understood that changes may be made 1n the particular embodiment of the invention described which are within the full Intended scope of the Invention as defined by the appended claims.

Claims

What 1s claimed is :

1. Apparatus or modular unit for complete combustion to be used in 1nc1nerat1on/combust1on chamber of Incinerator furnaces, boilers, or other devices wherein 1nc1neration/combustion 1s carried out in the complex mode of either one or more of suction, whirling flow, Induction of inversion of waste materials to be burnt, and airborne capturing and comprising :

(a) air distribution header or chamber comprising a plenum, and optionally the connection piping between said plenum and each air piping of composite air water pipings, and clean-up access cap to be plugged onto outer radial end of each air piping of composite air water piping array or onto the outer surface of air distribution hoop chamber ;

(b) one or more stage multicycle mode composite piping array, each of which comprises one or more air piping and single water piping with air jet nozzles radially distributed on each of the air piping of said composite pipings at radially varying or constant angular magnitude with respect to the virtual surface on which said composite pipings are in each stage ; (c) a central water manifold body into which the coolant water 1s fed through the water piping of said composite pipings of lower stage(s), and out of which 1t is driven through the water piping of composite pipings of upper stage(s) ; and

(d) Coolant water jacket(s) divided Into upstream and downstream coolant water jackets with said composite pipings and said central water manifold body 1n between them.

2. Apparatus for complete combustion to be used 1n 1nc1nerat1on/combust1on chamber of Incinerator furnaces, boilers., or other devices wherein 1nc1neration/combustion is carried out in the complex mode of either one or more of suction, whirling flow, Induction of Inversion of waste materials to be burnt, and airborne capturing and comprising :

(b) one or more stage multicycle mode composite piping array, each of which comprises one or more air piping and single water piping with air jet nozzles radially distributed on each of the air piping of said composite pipings at radially varying or constant angular magnitude with respect to the virtual surface on which said composite pipings are 1n each stage ;

(c) a central water manifold body into which the coolant water is fed through the water piping of said composite pipings of the entire stage(s), and out of which 1t 1s driven Into downstream coolant water jacket through hot water and steam exhaust piping ; and

(d) coolant water jacket(s) divided into upstream and downstream coolant water jackets with said composite pipings of the entire stage(s), said central water manifold body, and hot water and steam exhaust piping 1n between them.

3. Auxiliary fuel supply unit to be mounted to outer radial end of air piping of composite air-water pipings of claim 1 or 2, whereon fuel spray nozzle 1s mounted after taking out clean-up access cap.

4. Air Piping of upper composite single-air water pipings in a couple of stages 1n between them clockwise or counterclockwise whirling flow pattern is established according to claim 1 or 2, whereon one or more air jet nozzles are distributed in the vicinity of the central water manifold body so as to have only completely combusted gas exhausted 1n the central region of the incineration/combustion chamber while preventing incompletely Incinerated/ combusted combustibles or gases retained in the 1nc1nerat1on/combust1on compartment or chamberlet from coming out of it due to the centrifugal forces.

5. Air Piping of the composite multi-air water pipings of the uppermost stage according to claim 1 or 2, whereon one or more air jet nozzles are distributed 1n the vicinity of the central water manifold body so as to have only completely combusted gas exhausted in the central region of the Incineration/ combustion chamber while preventing Incompletely incinerated/combusted combustibles or gases retained 1n the 1nc1nerat1on/combust1on compartment or chamberlet from coming out of 1t due to the centrifugal forces.

6. Integral s1ngle-air-p1ping s1ngle-water-p1p1ng composite piping of arbitrary water piping cross section to be used in Incinerators, boilers, and other apparatuses.

7. Integral double-air-pip1ng single-water-piping composite piping of arbitrary water piping cross section to be used in incinerators, boilers, and other apparatuses.

8. Integral double-air-pip1ng single-water-piping composite piping of claim 7, of which the axis of either one of two air pipings does not lie in the line connecting the center of water piping and that of the other air piping.

9. Integral multK more than two )-air-pip1ng single-water-piping composite piping of arbitrary water piping cross section to be used 1n Incinerators, boilers, and other apparatuses, wherein the air pipings are distributed around the circle of constant radius about the axis of water piping at constant angular interval 1n between the two adjacent air pipings or at different angular interval.