CN214914912U - Two-fluid spray head of deacidification system of garbage incinerator - Google Patents
Two-fluid spray head of deacidification system of garbage incinerator Download PDFInfo
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- CN214914912U CN214914912U CN202120896387.9U CN202120896387U CN214914912U CN 214914912 U CN214914912 U CN 214914912U CN 202120896387 U CN202120896387 U CN 202120896387U CN 214914912 U CN214914912 U CN 214914912U
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Abstract
The utility model provides a dual-fluid nozzle of a deacidification system of a garbage incinerator, belonging to the technical field of deacidification equipment of garbage incinerators; the problems that the conventional slurry nozzle is seriously blocked in operation, the compressed air consumption is large, the atomization coverage is small and the penetrating power is not strong are solved; the technical scheme is that the device comprises a spray head, a slurry flow guide pipe, an atomizing cone, a distribution ring and an air interface seat, wherein the atomizing cone, the distribution ring and the air interface seat are sequentially arranged along the direction from the front end to the rear end of the spray head; the technical effect does, the utility model discloses a difficult jam of double-fluid nozzle effectively practices thrift the compressed air use amount, increases shower nozzle atomizing penetrating power and atomizing coverage.
Description
Technical Field
The utility model belongs to the technical field of waste incinerator deacidification equipment, specifically be a waste incinerator deacidification system double fluid nozzle.
Background
The living garbage brings serious environmental pollution, threatens the health and ecological balance of human beings, and becomes a big public hazard, and the incineration is considered as one of effective modes for treating the household garbage. The domestic garbage contains a large amount of organic components, and HCl and HF are mainly generated by chloride in the garbage or chlorine-containing plastics, resin and other organic matters in the incineration process. The original HCl content in the flue gas is 600-1200 mg/m3The content of HF is 1-20 mg/m3；SOxMainly generated in the process of burning sulfur-containing compounds in the garbage, wherein SO is used as the raw material2Mainly, under the catalytic action of heavy metal, a small amount of SO is generated3Original SO in flue gasxThe content is 200-800 mg/m3。
In the whole flue gas purification process, aiming at the removal and control of acid gas, the current mainstream process is a semi-dry process. The absorbent for semidry desalination is generally prepared from calcium oxide or calcium hydroxide as a raw material to form a calcium hydroxide solution, and a deacidification tower is usually arranged in front of dust removal equipment in a flue gas purification process flow. The desulfurizer utilizes compressed air to atomize and spray calcium hydroxide solution into the deacidification tower by a two-fluid nozzle to form liquid drops with extremely small particle size, and the liquid drops are mixed with flue gas and then fully react. Has the advantages of high desulfurization efficiency, strong applicability, wide load regulation range and the like. However, the following problems are easily generated in the actual operation control process:
(1) severe clogging of dual fluid spray head
Because the deacidification agent calcium oxide or calcium hydroxide powder contains more impurities and the slurry has high density, the impurities after being fused into the slurry are directly conveyed to the spray head for atomization and spraying after passing through the mixer along with the high-density slurry, so that the blockage of the atomization port of the spray head is serious.
(2) The compressed air consumption of the double-fluid spray nozzle is large
Because the atomizing opening of the existing spray head is easy to block and has no rotary area, the compressed air is unevenly distributed, the slurry and the gas are unevenly mixed, and part of the compressed air directly escapes to cause waste.
(3) The deacidification agent spray head has small atomization coverage and weak penetrating power
Because the waste incineration flue gas contains a large amount of acid gas and viscous substances, the flow velocity of the flue gas in the deacidification tower is high, the spraying direction of the spray head is in convection with the flue gas, and the spray nozzle on the spray head is circular, so that the penetrating power of the spray is not strong, and the coverage is small.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art's is not enough, provides a waste incinerator deacidification system double fluid shower nozzle, and the purpose is solved conventional thick liquid shower nozzle and is stopped up serious in service, consumed compressed air amount is big, the atomizing coverage is little, the not strong problem of penetrating power.
In order to achieve the above purpose, the present invention is achieved by the following technical solutions.
A dual-fluid spray nozzle of a deacidification system of a garbage incinerator comprises a spray nozzle, a slurry flow guide pipe, and an atomizing cone, a uniform distribution ring and an air interface seat which are sequentially arranged along the direction from the front end to the rear end of the spray nozzle, wherein gaps are arranged among the uniform distribution ring, the atomizing cone and the air interface seat; the spray head comprises a plurality of long circular nozzles arranged at the front end of the spray head and a cavity arranged in the spray head, the nozzles are communicated with the cavity, an included angle between the center line of the nozzles and the center line of the spray head is an acute angle, the atomizing cone is arranged in the cavity and communicated with the cavity, a first conical hole is arranged in the atomizing cone, the diameter of the front end of the first conical hole is smaller than that of the rear end of the first conical hole, a guide column is arranged in the cavity, one end of the guide column is connected with the front end of the spray head, the other end of the guide column is provided with a conical groove, a gap is formed between one end of the guide column, which is far away from the front end of the spray head, and the atomizing cone, and the cavity, a cylindrical structure and the atomizing cone form a second atomizing cavity; the air interface seat is connected with the rear end of the spray head, a through hole is formed in the air interface seat, a second taper hole is formed in the uniform distribution ring, the diameter of the front end of the second taper hole is larger than that of the rear end of the second taper hole, the slurry guide pipe sequentially penetrates through the through hole and the second taper hole and extends into the first taper hole, the air interface pipe is attached to the outer surface of the slurry guide pipe in a zero mode, a gap is formed between the uniform distribution ring and the slurry guide pipe, a plurality of air distribution holes are formed in the air interface seat, and the atomization cone, the slurry guide pipe and the uniform distribution ring form a first atomization cavity.
Further, the shower nozzle is the solid of revolution, the guide post is the cylinder structure, the axis of guide post with the axis of shower nozzle coincides mutually, the central line of nozzle with the contained angle between the axis of shower nozzle is 0-20, and a plurality of nozzles are followed the axis of shower nozzle evenly sets up.
Furthermore, the air interface seat is connected with the rear end of the spray head through a compression nut.
Further, the air interface seat is in a shape of a solid of revolution, and the plurality of air distribution holes are uniformly arranged along the axis of the air interface seat.
Further, the gap between the uniform distribution ring and the air interface seat is larger than the gap between the uniform distribution ring and the slurry flow guide pipe.
The utility model discloses produced beneficial effect for prior art does: the utility model discloses a double-fluid nozzle is difficult for blockking up, can effectively practice thrift compressed air use amount, has increased shower nozzle atomizing penetrating power and atomizing coverage, can cross and guarantee double-fluid misce bene, energy-conservation, efficient.
Drawings
The present invention will be further explained with reference to the accompanying drawings;
FIG. 1 is a front cross-sectional view of a dual fluid sprinkler head according to the present invention;
FIG. 2 is a schematic top view of a dual fluid showerhead of the present invention;
wherein, 1 is the shower nozzle, 2 is the atomizing awl, 3 is gland nut, 4 is the equipartition ring, 5 is the air interface seat, 6 is the thick liquid honeycomb duct, 7 is the nozzle, 8 is first bell mouth, 9 is second toper hole, 10 is the gas distribution hole, 11 is the guide post, 12 is the circular cone groove.
Detailed Description
In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clear, the present invention is further described in detail with reference to the accompanying embodiments and drawings, it should be understood that the specific embodiments described herein are only used for explaining the present invention, and are not used for limiting the present invention.
As shown in fig. 1-2, the dual fluid nozzle 1 of the present invention comprises a rotating body-shaped nozzle 1, a slurry flow guiding pipe 6, an atomizing cone 2, a uniform distribution ring 4, and an air interface seat 5, which are sequentially arranged along the direction from the front end to the rear end of the nozzle 1, wherein gaps are respectively arranged between the uniform distribution ring 4, the atomizing cone 2, and the air interface seat 5 along the front and rear directions, the diameter of the nozzle 1 is 47.5mm, the nozzle 1 comprises 8 oblong nozzles 7 arranged at the front end of the nozzle 1 and a cavity formed inside the nozzle 1, the 8 oblong nozzles 7 are uniformly arranged along the axis of the nozzle 1, the nozzles 7 are communicated with the cavity, an acute angle is arranged between the center line of the nozzles 7 and the axis of the nozzle 1, the range of the acute angle is not more than 20 degrees, the atomizing cone 2 is arranged in the cavity and communicated with the cavity, a first tapered hole 8 is arranged inside the atomizing cone 2, the diameter of the front end of the first tapered hole 8 is smaller than the diameter of the rear end thereof, the cavity is internally provided with a guide post 11, the guide post 11 is of a cylindrical structure, the axis of the guide post 11 is superposed with the axis of the spray head 1, one end of the guide post 11 is connected with the front end of the spray head 1, the other end of the guide post is provided with a conical groove 12, a gap is arranged between one end of the guide post 11, which is far away from the front end of the spray head 1, and the atomizing cone 2, the cavity, the cylindrical structure and the atomizing cone 2 form a rotation area, which is also called as a second atomizing chamber, so that the slurry is effectively ensured to be reflected and scattered into an inverted umbrella shape along the conical surface after entering the conical groove 12 under the impact action of compressed air, the thickness of the scattered liquid level is thinned, the scattered liquid level is rotated in a circulation area, the slurry is forced to be fully mixed with air, and finally the slurry is sprayed out through the nozzle 7, the nozzle 7 is arranged into a long circular shape, the impact force of the sprayed liquid is improved by increasing the length and the sectional area of the nozzle 7, the resistance is reduced, and the blockage of large-particle impurities is avoided.
The air interface seat 5 is in a revolving body shape, the air interface seat 5 is connected with the rear end of the spray head 1 through a gland nut 3, a through hole is arranged in the air interface seat 5, a second taper hole 9 is arranged in the uniform distribution ring 4, the diameter of the front end of the second taper hole 9 is larger than that of the rear end of the second taper hole, the slurry guide pipe 6 sequentially penetrates through the through hole and the second taper hole 9 and extends into the first taper hole 8, the air interface tube is in zero adhesion with the outer surface of the slurry guide pipe 6, a gap is arranged between the uniform distribution ring 4 and the slurry guide pipe 6, the gap between the uniform distribution ring 4 and the air interface seat 5 is larger than that between the uniform distribution ring 4 and the slurry guide pipe 6, the distance between the front end of the spray head 1 and the rear end of the slurry guide pipe 6 is 103.3mm, 12 air distribution holes 10 with the diameter of 6.3 are arranged on the air interface seat 5, the 12 air distribution holes 10 are uniformly arranged along the axis of the air interface seat 5, and ensure that compressed air can uniformly enter the spray head 1 along the periphery, atomizing awl 2, thick liquid honeycomb duct 6, equipartition ring 4 form first atomizing chamber, and at first compressed air accelerates, flow equalizes through equipartition ring 4, evenly strikes the thick liquid of the inside transport of thick liquid honeycomb duct 6 along the side surface of thick liquid honeycomb duct 6, then jets out with higher speed through atomizing awl 2, forms the negative pressure region, and venturi effect promptly guarantees that compressed air volume is even with thick liquid ratio, avoids compressed air escape and extravagant.
The utility model discloses a two fluid nozzle 1 divide into four stages, and the first stage is compressed air section one, the second stage is compressed air section two, the third stage is through first atomizing chamber, fourth stage for the second atomizing chamber that flow equalizes for compressed air.
The first stage: 12 air distribution holes 10 are arranged on the air interface seat 5, which is convenient for compressing the pipeline with high strength
Air uniformly flows into the double-fluid nozzle 1 along the circumference of the air interface tube, namely, compressed air is subjected to primary flow equalization;
the second stage: compressed air enters the uniform distribution ring 4 through the air interface seat 5 and the gaps between the air interface seat 5 and the uniform distribution ring 4
In the uniform distribution ring 4, the sectional area is reduced in the process, so that the flow speed and the impact force of compressed air are improved, the compressed air uniformly impacts the slurry conveyed in the slurry guide pipe 6 along the circumference of the outer surface of the slurry guide pipe 6, namely, the compressed air is subjected to secondary flow equalization;
third stage: the atomizing cone 2 in the first atomizing cavity converges the slurry and the compressed air at a high speed to form an atomized gas-liquid mixture by sharply contracting the cross section area, and the atomized gas-liquid mixture is accelerated to be sprayed into the second atomizing cavity by the pressure of the compressed air to form a negative pressure area, namely a Venturi effect, so that the slurry is ensured not to be subjected to resistance;
fourthly, the fourth stage: the guide post 11 of the second atomization chamber is provided with a conical groove 12, and the atomized vapor-liquid mixture from the first atomization chamber enters the conical groove 12 under the impact action of compressed air and then is reflected and dispersed along the conical surface to form an inverted umbrella shape, so that the dispersed liquid level becomes thinner, the dispersed liquid level turns in a circulation area, slurry is forced to be fully mixed with air, and finally the nozzle 7 is sprayed out at a high speed to be fully mixed with flue gas for reaction.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the double-fluid spray head 1 is not easy to block
The utility model is provided with a first compressed air flow equalizing section, a second compressed air flow equalizing section, a first atomizing cavity and a second atomizing cavity, and the impact force and the penetrating power of the atomized vapor-liquid mixture are enhanced through twice flow equalizing of compressed air and twice high atomization of slurry; the shape of the nozzle 7 is arranged into an oblong, so that the sectional area is increased, and the nozzle is convenient for slurry impurities and blockage of scale dried by high-temperature flue gas.
(2) Effectively saving the use amount of compressed air
The utility model discloses a set up compressed air section one, compressed air section two, first atomizing chamber and the second atomizing chamber of flow equalizing, greatly increased the mixing time and the vaporization effect of compressed air and thick liquid, effectively improved compressed air's use amount, avoided compressed air to escape, guarantee that compressed air volume is even with thick liquid ratio, reduce the compressed air quantity.
(3) Increase the atomization penetrating power and the atomization coverage range of the spray head 1
The utility model discloses set up the second atomizing chamber, 8 slotted hole nozzles 7 through 1 front end setting of shower nozzle have increased compressed air and thick liquid intensive mixing time, increase kinetic energy, go out the back through the high-speed injection of slotted hole spout, improve the penetrating power, be 20 with the axis contained angle of nozzle 7 and shower nozzle 1, have increased coverage area.
The utility model discloses form countless rapid whirl with two kinds of fluids respectively, and make rapid whirl meet at first atomizing chamber and second atomizing chamber, finally through high-speed impact, violent friction, powerful extrusion, tear, breakage between two fluids, thereby make two fluids reach abundant mixing, satisfied the required mixed effect of production, the method can not only fully mix gas and liquid, gas and gas, but also very can be fit for mixing liquid and gas; through setting up compressed air flow equalizing section one, compressed air flow equalizing section two, not only do not increase the energy consumption, improved compressed air homogeneity and utilization ratio on the contrary, improved the efficiency of air compressor machine greatly, practiced thrift the power consumption, this method has simple process, practicality strong, the atomizing is even abundant, energy-conserving, efficient advantage.
The above description is for further details of the present invention with reference to specific preferred embodiments, and it should not be understood that the embodiments of the present invention are limited thereto, and it will be apparent to those skilled in the art that the present invention can be implemented in a plurality of simple deductions or substitutions without departing from the scope of the present invention, and all such alterations and substitutions should be considered as belonging to the present invention, which is defined by the appended claims.
Claims (5)
1. A dual-fluid nozzle of a deacidification system of a garbage incinerator comprises a nozzle and is characterized by further comprising a slurry flow guide pipe, and an atomizing cone, a uniform distribution ring and an air interface seat which are sequentially arranged along the direction from the front end to the rear end of the nozzle, wherein gaps are formed among the uniform distribution ring, the atomizing cone and the air interface seat;
the spray head comprises a plurality of long circular nozzles arranged at the front end of the spray head and a cavity arranged in the spray head, the nozzles are communicated with the cavity, an included angle between the center line of the nozzles and the center line of the spray head is an acute angle, the atomizing cone is arranged in the cavity and communicated with the cavity, a first conical hole is arranged in the atomizing cone, the diameter of the front end of the first conical hole is smaller than that of the rear end of the first conical hole, a guide column is arranged in the cavity, one end of the guide column is connected with the front end of the spray head, the other end of the guide column is provided with a conical groove, a gap is formed between one end of the guide column, which is far away from the front end of the spray head, and the atomizing cone, and the cavity, a cylindrical structure and the atomizing cone form a second atomizing cavity;
the air interface seat is connected with the rear end of the spray head, a through hole is formed in the air interface seat, a second taper hole is formed in the uniform distribution ring, the diameter of the front end of the second taper hole is larger than that of the rear end of the second taper hole, the slurry guide pipe sequentially penetrates through the through hole and the second taper hole and extends into the first taper hole, the air interface pipe is used for being attached to the outer surface of the slurry guide pipe in a zero mode, a gap is formed between the uniform distribution ring and the slurry guide pipe, a plurality of air distribution holes are formed in the air interface seat, and the atomization cone, the slurry guide pipe and the uniform distribution ring form a first atomization cavity.
2. The dual-fluid nozzle of deacidification system of garbage incinerator according to claim 1, wherein said nozzle is in the shape of revolution, said guide pillar is in the shape of cylinder, the axis of said guide pillar coincides with the axis of said nozzle, the included angle between the center line of said nozzle and the axis of said nozzle is 0-20 °, multiple nozzles are uniformly arranged along the axis of said nozzle.
3. The dual-fluid sprayer of a deacidification system of a garbage incinerator according to claim 1, wherein the air interface seat is connected with the rear end of the sprayer through a compression nut.
4. The dual-fluid sprayer of the deacidification system of the garbage incinerator according to claim 1, wherein the air port seat is in a shape of a solid of revolution, and the plurality of air distribution holes are uniformly arranged along the axis of the air port seat.
5. The dual-fluid sprayer of the deacidification system of the garbage incinerator according to claim 1, wherein the gap between the uniform distribution ring and the air interface seat is larger than the gap between the uniform distribution ring and the slurry flow guide pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120896387.9U CN214914912U (en) | 2021-04-28 | 2021-04-28 | Two-fluid spray head of deacidification system of garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120896387.9U CN214914912U (en) | 2021-04-28 | 2021-04-28 | Two-fluid spray head of deacidification system of garbage incinerator |
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| Publication Number | Publication Date |
|---|---|
| CN214914912U true CN214914912U (en) | 2021-11-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120896387.9U Active CN214914912U (en) | 2021-04-28 | 2021-04-28 | Two-fluid spray head of deacidification system of garbage incinerator |
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|---|---|
| CN (1) | CN214914912U (en) |
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2021
- 2021-04-28 CN CN202120896387.9U patent/CN214914912U/en active Active
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