CN108310926B - Combustion tail gas treatment and heat recovery device - Google Patents
Combustion tail gas treatment and heat recovery device Download PDFInfo
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- CN108310926B CN108310926B CN201810378135.XA CN201810378135A CN108310926B CN 108310926 B CN108310926 B CN 108310926B CN 201810378135 A CN201810378135 A CN 201810378135A CN 108310926 B CN108310926 B CN 108310926B
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 67
- 238000011084 recovery Methods 0.000 title claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 127
- 239000007789 gas Substances 0.000 claims description 61
- 239000000446 fuel Substances 0.000 claims description 17
- 230000000630 rising effect Effects 0.000 claims description 14
- 238000009833 condensation Methods 0.000 claims description 12
- 230000005494 condensation Effects 0.000 claims description 12
- 238000003860 storage Methods 0.000 claims description 10
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 8
- 239000003546 flue gas Substances 0.000 claims description 8
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 claims description 4
- 239000011229 interlayer Substances 0.000 claims 2
- 239000010410 layer Substances 0.000 claims 2
- 238000000034 method Methods 0.000 abstract description 10
- 239000000126 substance Substances 0.000 abstract description 4
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 239000002912 waste gas Substances 0.000 description 6
- 239000007788 liquid Substances 0.000 description 4
- 238000005507 spraying Methods 0.000 description 4
- 238000005192 partition Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010763 heavy fuel oil Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/14—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention relates to the technical field of tail gas treatment systems, in particular to a combustion tail gas treatment and heat recovery device, which comprises a device body, wherein an exhaust tube bundle is arranged in the device body, the lower part of the exhaust tube bundle is communicated with a device body space outside the exhaust tube bundle, the upper part of the exhaust tube bundle is communicated to a combustion tail gas interface, and the exhaust tube bundle is completely immersed below the water surface in the device. The invention transfers the heat carried by the combustion tail gas to the water in the device, and then the water with the heat is utilized to exchange heat so as to further utilize the heat, and harmful substances in the tail gas can be effectively dissolved and removed in the process.
Description
Technical Field
The invention relates to the technical field of tail gas treatment systems, in particular to a combustion tail gas treatment and heat recovery device.
Background
The energy or power is obtained by combustion in life and industrial production, the tail gas generated after combustion contains a large amount of toxic and harmful gas, the air is polluted by direct discharge, the toxic substances are removed by a chemical method in the existing waste gas treatment device, the heat carried by the tail gas is usually ignored in the waste gas purification process, the heat is dissipated, and unnecessary waste is caused, so that the design is very necessary to further utilize the heat energy generated by combustion in the waste gas while purifying the tail gas.
Disclosure of Invention
In view of the defects in the prior art, the invention provides a combustion tail gas treatment and heat recovery device, which aims to purify tail gas and further utilize heat energy generated by combustion in the tail gas.
In order to achieve the above purpose, the technical scheme of the invention is that the combustion tail gas treatment and heat recovery device comprises a device body, wherein an exhaust tube bundle is arranged in the device body, the lower part of the exhaust tube bundle is communicated with a device body space outside the exhaust tube bundle, the upper part of the exhaust tube bundle is communicated to a combustion tail gas interface, and the exhaust tube bundle is completely immersed below the water surface in the device.
Based on the technical scheme, the whole exhaust tube bundle is immersed below the water surface, so that the heat on the surface of the metal exhaust tube bundle and the heat of gas generated by combustion can be completely absorbed. The utilization rate of heat generated by combustion is improved.
Preferably, the combustion tail gas interface is an exhaust end of a vortex-jet burner, and the vortex-jet burner comprises a flange, a tail turbine, a fuel supply system, a nozzle, an ignition system, an equipment shell, an air inlet turbofan, three groups of air inflow air doors, a main shaft, a central air duct sleeve and an outer air duct sleeve; the device comprises a device body, a device shell, a main shaft, a central air channel sleeve, an outer air channel sleeve, a combustion chamber, a fuel supply system, a nozzle and an ignition system, wherein the device shell is connected to the device body through a flange, the center of the device shell penetrates through the main shaft, the outside of the main shaft is provided with the central air channel sleeve, a space between the central air channel sleeve and the main shaft is a central air channel, the outside of the central air channel sleeve is provided with the outer air channel sleeve, the space between the outer air channel sleeve and the central air channel sleeve is the combustion chamber, the combustion chamber is internally provided with the fuel supply system, the nozzle and the ignition system, the space between the outer air channel sleeve and the device shell is the outer air channel, and two sides of the central air channel sleeve are respectively provided with an air inlet turbofan and a tail turbine; the air inlet turbofan and the tail turbine are both arranged on the main shaft, and three groups of air inflow regulating air doors are arranged at the air inlet end of the air inlet turbofan; the three groups of air inflow air doors are arranged on the air storage chamber inside the device body.
Based on the technical scheme, to burning tail gas treatment and heat recovery device, its inside burning need not be violent, but need burn abundant, but can regulate and control the firepower then better, adopt the vortex of above-mentioned structure to spout the combustor, fuel feed system in the combustion chamber spouts fuel through the nozzle, ignition system ignites, gas combustion expansion, afterbody turbine rotation drives the main shaft and rotates, the air inlet turbofan of drive front end rotates, expansion gas and flame are discharged from burning tail gas interface by afterbody turbine, this in-process, gas is from external or the continuous entering combustion chamber of air inlet turbofan, central air flue and outer air flue of air receiver. The vortex spraying combustion engine divides the space inside the shell into a combustion chamber, a central ventilating duct and an outer ventilating duct, and three groups of air inflow regulating air doors at the rear part can respectively regulate the air inflow of air entering the three channels; the combustion chamber is ignited for combustion, and the central air channel is isolated, so that the air inlet quantity of the central air channel can be adjusted, and when fuel which is not fully combusted in the combustion chamber is sprayed to the tail turbine, the fuel is secondarily combusted by the air which is introduced by the central air channel, and the temperature of a flame core is reduced; the same can be used for adjusting the air inlet quantity of the external ventilating duct by using three groups of air inlet quantity adjusting air doors so as to control secondary combustion and outer flame temperature outside the outer flame. Through the special arrangement of the structure, the temperature of the flame core, the inner flame and the outer flame of the flame can be balanced, and the size of the flame can be controlled as required by adjusting the air inlet quantity.
Further, an opening and closing device is arranged at a position, close to the exhaust end of the combustor, on the exhaust tube bundle.
Further, the lower part of the exhaust tube bundle is connected to a jet disc arranged at the bottom of the device body, and the jet disc is of a structure with air holes arranged at the bottom of the device body.
Further, a water inlet system and a water outlet system are arranged on the device body.
Further, a dispensing system is connected to the recovery device by the water intake system.
Preferably, the water inlet system is a water distributor with circumferentially arranged inner walls, the water distributor is an annular water pipe, a water inlet and a water outlet are arranged on the annular water pipe, and a plurality of water injection holes are circumferentially and uniformly distributed.
Based on the technical scheme, the water distributor continuously shoots water to the central exhaust tube bundle, and continuously rising high-temperature bubbles coming out of the lower part of the exhaust tube bundle are in contact heat transfer with water shot by the water distributor, so that heat is better utilized.
Preferably, the water outlet system is a water outlet pipe inserted close to the inner wall of the device body, and a bubble partition plate is arranged on one side, far away from the inner wall, of the water outlet pipe.
Further, a heat exchanger is arranged between the water inlet system and the water outlet system outside the device body.
And the overflow pipe is arranged on the device body and is higher than the highest point of the exhaust pipe bundle.
Further, an air preheating system is arranged in the upper space of the device body, the air preheating system comprises a plurality of tube bundles, one end of each tube bundle is communicated with the air outside the device, the other end of each tube bundle is communicated to an air storage chamber of the vortex spraying burner, and the outer walls of the plurality of tube bundles are in contact with rising flue gas.
Further, a condensing system is arranged at the upper part of the device body, and comprises a compressor, one or more cold air circulation chambers and one or more condensing tube bundles; the two ends of each cold air circulation cavity are communicated through one or more condensation tube bundles, a fan and an evaporator are arranged in each cold air circulation cavity, the outer walls of the condensation tube bundles are in contact with rising flue gas, the peripheral space of each condensation tube bundle is communicated to an exhaust chimney on the device body, and the evaporator is connected to the compressor.
Preferably, two cool air circulation chambers are provided.
Further, the condensing system further comprises a condensate return pipe, and the condensate return pipe is connected to a water inlet system arranged on the device body.
Further, one or more heat exchange devices are arranged in the device body, and a medium to be heated is introduced into the heat exchange devices.
Based on the technical scheme, the working process of the combustion tail gas treatment and heat recovery device is as follows: when the device for burning tail gas does not work yet, water is arranged in the device body, and the inside and outside water levels of the exhaust tube bundle are equal to the water level at the bottom of the burner because the exhaust tube bundle is communicated with the outside space. When the device for burning tail gas works, burning tail gas enters the device through the burning tail gas interface, gas on the upper part of the exhaust tube bundle near the burning tail gas interface expands, the pressure is gradually increased, gas can be released from the position of the opening and closing device initially, when the pressure is increased to a certain degree, the opening and closing device is closed under the pressure effect, the gas can downwards press the liquid level in the exhaust tube bundle along the exhaust tube bundle from top to bottom, water flows out of the exhaust tube bundle from the inside of the exhaust tube bundle, the liquid level on the outer side of the exhaust tube bundle gradually rises until the liquid level rises to the overflow pipe, the exhaust tube bundle can be completely immersed below the water surface, in the process, water in the exhaust tube bundle can be gradually discharged under the action of jet pressure of the burner, the liquid level rises until the burner is immersed, the corresponding heated temperature of the exhaust tube bundle is increased, the external water temperature contacted with the gas is also continuously increased, and compared with the device which is arranged outside or the heating device which is not completely immersed in the water, the heat obtained by the exhaust tube bundle of the device can be completely transferred with water, and the heat efficiency is higher. In the continuous working process of the device for releasing the combustion tail gas, gas can be continuously generated (entering) in the exhaust tube bundle, the gas can enter the water in the device at the periphery of the exhaust tube bundle from top to bottom along the exhaust tube bundle to , the bubbles continuously rise, and the heat carried by the bubbles in the process is also continuously transferred into the water in the device. Meanwhile, harmful waste gas is generated in the working process of the device for releasing the combustion tail gas, and is gradually dissolved by water in the process of continuously rising from the bottom of the device, and part of the waste gas is removed.
When the air bubbles continuously rise to the water surface, the air bubbles are broken, part of heat of the discharged air is still not absorbed, the discharged air enters an air preheating system, a tube bundle of the air preheating system is directly introduced into an air storage chamber of a device for releasing combustion tail gas from outside the device, the air in the tube bundle is subjected to heat transfer by the air bubbles rising at the periphery of the tube bundle, and the preheated air enters the air storage chamber of the device for releasing the combustion tail gas, so that the heat of the discharged air is further utilized, the initial temperature of the gas in the air storage chamber of the device for releasing the combustion tail gas rises, the gas is easier to ignite, and the combustion is more sufficient.
And the waste gas after passing through the air preheating system enters a condensing system to condense the gas, and the condensed gas is discharged from an exhaust chimney.
When the heat absorbed by the device is utilized, a heat exchanger can be arranged between a water inlet system and a water outlet system outside the device so as to exchange heat; or the heat exchange device is directly arranged at the lower part of the overflow pipe in the device, and the medium to be heated is introduced into the overflow pipe, so that the heat exchange is directly carried out in the device, and the heat exchange efficiency is higher.
The device water is continuously fed through a water inlet system (water distributor) connected with the device body, and is continuously discharged through a water outlet system connected with the device body, so that the continuous circulation of water in the device is realized, and the bubble partition plates arranged around the water outlet system can effectively prevent bubbles from leaking out of the water outlet system.
The water distributor is an annular water pipe, a water inlet and a water outlet are arranged on the annular water pipe, and a plurality of water injection holes are uniformly distributed in the circumferential direction. The water continuously enters from the water inlet of the water inlet system, flows in from the water outlet and a plurality of water jet holes distributed circumferentially, and can be contacted with the high-temperature bubbles rising from the bottom to transfer heat.
The invention has the beneficial effects that: the heat carried by the combustion tail gas is transferred to the water in the device, and the water with the heat is reused for heat exchange so as to further utilize the heat, and harmful substances contained in the tail gas can be effectively dissolved and removed in the process.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic structural view of a swirl-jet burner;
FIG. 3 is a schematic view of the structure of the condensing system;
FIG. 4 is a side view of the present invention;
FIG. 5 is a schematic structural view of a water distributor;
in the figure: 1. the device comprises a device body, 2, an exhaust pipe bundle, 3, a flange, 4, a tail turbine, 5, a fuel supply system, 6, a nozzle, 7, an ignition system, 8, a device housing, 9, an air inlet turbofan, 10, a combustion tail gas interface, 11, three groups of air inflow regulating air doors, 12, a main shaft, 13, a central air duct sleeve, 14, an outer air duct sleeve, 15, a combustion chamber, 16, an air storage chamber, 17, an opening and closing device, 18, jet discs, 19, a water distributor, 20, a water inlet, 21, a water outlet, 22, a water jet hole, 23, a water outlet pipe, 24, a bubble partition, 25, an overflow pipe, 26, an air preheating system, 27, a condensing system, 28, a compressor, 29, a cold air circulation chamber, 30, a condensing pipe bundle, 31, a fan, 32, an evaporator, 33, an exhaust chimney, 34 and a heat exchange device.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention clearer, reference is made to the following description taken in conjunction with the accompanying drawings and specific examples.
Example 1
The combustion tail gas treatment and heat recovery device comprises a device body 1, wherein an exhaust tube bundle 2 is arranged in the device body 1, the lower part of the exhaust tube bundle 2 is communicated with the space of the device body 1 outside the exhaust tube bundle 2, the upper part of the exhaust tube bundle 2 is communicated with the combustion tail gas interface 10, and the exhaust tube bundle 2 is completely immersed below the water surface (the water can be added with a medicament capable of absorbing harmful gases) inside the device.
Further, an opening and closing device 17 is arranged on the exhaust tube bundle 2 at a position close to the exhaust end of the burner.
Further, the lower part of the exhaust tube bundle 2 is connected to a injection disk 18 arranged at the bottom of the device body 1.
Further, a water inlet system and a water outlet system are arranged on the device body 1.
Preferably, the water inlet system is a water distributor 19 with a circumferentially arranged inner wall, the water distributor 19 is an annular water pipe, a water inlet 20 and a water outlet 21 are arranged on the annular water pipe, and a plurality of water injection holes 22 are circumferentially and uniformly distributed.
Based on the technical scheme, the water distributor 19 continuously shoots water to the central exhaust pipe bundle 2, and the continuously rising high-temperature bubbles coming out from the lower part of the exhaust pipe bundle 2 contact with the water ejected by the water distributor 19 for heat transfer, so that the heat is better absorbed.
Preferably, the water outlet system is a water outlet pipe 23 inserted close to the inner wall of the device body, and a bubble baffle 24 is arranged on one side of the water outlet pipe 23 far away from the inner wall.
Further, a heat exchanger is arranged between the water inlet system and the water outlet system outside the device body 1.
The overflow pipe 25 is arranged on the device body, and the overflow pipe 25 is higher than the highest point of the exhaust pipe bundle 2.
Further, an air preheating system 26 is arranged in the upper space of the device body 1, the air preheating system 26 comprises a plurality of tube bundles, one end of each tube bundle is communicated with the air outside the device, the other end of each tube bundle is communicated to the air storage chamber 16 of the vortex spraying burner, and the outer walls of the tube bundles are in contact with the rising flue gas.
Further, a condensing system 27 is arranged at the upper part of the device body 1, and the condensing system 27 comprises a compressor 28, one or more cold air circulation chambers 29 and one or more condensing tube bundles 30; two ends of each cold air circulation chamber 29 are communicated through one or more condensation tube bundles 30, a fan 31 and an evaporator 32 are arranged in each cold air circulation chamber 29, the outer walls of the condensation tube bundles 30 are in contact with the rising flue gas, the peripheral space of the condensation tube bundles 30 is communicated to an exhaust chimney 33 on the device body 1, and the evaporator 32 is connected to the compressor 28.
Preferably, two cool air circulation chambers 29 are provided.
Further, the condensing system further comprises a condensate return pipe, and the condensate return pipe is connected to a water inlet system arranged on the device body 1.
Further, one or more heat exchange devices 34 are arranged inside the device body 1, and a medium to be heated is introduced into the heat exchange devices.
Example 2
The combustion tail gas treatment and heat recovery device comprises a device body 1, an exhaust tube bundle 2 is arranged inside the device body 1, the lower part of the exhaust tube bundle 2 is communicated with the space of the device body 1 outside the exhaust tube bundle 2, the upper part of the exhaust tube bundle 2 is communicated to a combustion tail gas interface 10, and the exhaust tube bundle 2 is completely immersed below the water surface inside the device (the chemical capable of absorbing harmful gases can be added in water).
Preferably, the combustion tail gas interface 10 is an exhaust end of a turbojet combustion engine, and the turbojet combustion engine comprises a flange 3, a tail turbine 4, a fuel supply system 5, a nozzle 6, an ignition system 7, an equipment shell 8, an air inlet turbofan 9, three groups of air inflow air doors 11, a main shaft 12, a central air duct sleeve 13 and an outer air duct sleeve 14; the equipment shell 8 is connected to the device body 1 through the flange 3, the center of the equipment shell 8 passes through the main shaft 12, a central air duct sleeve 13 is arranged outside the main shaft 12, a space between the central air duct sleeve and the main shaft 12 is a central air duct, an outer air duct sleeve 14 is arranged outside the central air duct sleeve 13, a space between the outer air duct sleeve 14 and the central air duct sleeve 13 is a combustion chamber 15, a fuel supply system 5, a nozzle 6 and an ignition system 7 are arranged in the combustion chamber 15, a space between the outer air duct sleeve 14 and the equipment shell 8 is an outer air duct, and two sides of the central air duct sleeve 13 are respectively provided with an air inlet turbofan 9 and a tail turbine 4; the air inlet turbofan 9 and the tail turbine 4 are both arranged on the main shaft 12, and three groups of air inflow air doors 11 are arranged at the air inlet end of the air inlet turbofan 9; three sets of intake air amount adjusting dampers 11 are provided on an air reservoir 16 inside the device body 1.
The inner cavity of the shell is divided into three layers of channels by taking the main shaft as a boundary, and the three layers of channels comprise an outer ventilating channel, a combustion chamber and a central ventilating channel;
the fuel is injected into the combustion chamber 15 from the fuel supply system 5, the fuel is ignited by the ignition system 7, the combustion chamber 15 burns, the gas expands rapidly, and is discharged from the tail end after expansion, and the expanded gas is forced to be discharged to the tail turbine 4 to do work against resistance because the number of the tail turbine 4 fans is smaller than that of the air inlet turbofan 9, so that a turbine is formed, and the gas pushes the turbine to rotate; after the turbine rotates, the air intake turbofan 9 absorbs air from the outside, when the air is sucked into the combustion chamber 15, the combustion chamber 15 is mixed air, and a large amount of gas and fire drive the turbine to rotate and spray out to form middle flame; when the air is absorbed into the central air duct, the central air duct is cold air, incomplete combustion is carried out, oxygen is exhausted, but part of fuel is contained in the central air duct, and the residual fuel is ignited secondarily after passing through the tail turbine 4 to the position before the edge of the shell row, and the ignition temperature is very low due to the fact that the cold air is introduced, so that the temperature of inner flame passing through the central air duct is not high; when the air is absorbed from the outer ventilation channel and reaches the tail turbine 4, the principle is the same as that of the inner flame, and when the air passes through the tail turbine 4 and reaches the position of the edge of the exhaust end of the shell, secondary ignition is carried out, so that an outer flame is formed, and finally, the flame core, the inner flame and the outer flame are kept balanced, and the flame temperature is controlled.
Further, the three groups of air inflow air doors 11 are designed into a shutter type, the central ventilating duct, the combustion chamber 15 and the outer ventilating duct are respectively controlled, and the shutter is used for adjusting the lifting switch of the shutter through the adjusting rod, and meanwhile, the angle of the blade is adjusted.
Further, an opening and closing device 17 is arranged on the exhaust tube bundle 2 at a position close to the exhaust end of the burner.
Further, the lower part of the exhaust tube bundle 2 is connected to a injection disk 18 arranged at the bottom of the device body 1.
Further, a water inlet system and a water outlet system are arranged on the device body 1.
Preferably, the water inlet system is a water distributor 19 with a circumferentially arranged inner wall, the water distributor 19 is an annular water pipe, a water inlet 20 and a water outlet 21 are arranged on the annular water pipe, and a plurality of water injection holes 22 are circumferentially and uniformly distributed.
Based on the technical scheme, the water distributor 19 continuously shoots water to the central exhaust pipe bundle 2, and the continuously rising high-temperature bubbles coming out from the lower part of the exhaust pipe bundle 2 are in contact heat transfer with the water ejected by the water distributor 19, so that the heat is better utilized.
Preferably, the water outlet system is a water outlet pipe 23 inserted close to the inner wall of the device body, and a bubble baffle 24 is arranged on one side of the water outlet pipe 23 far away from the inner wall.
Further, a heat exchanger is arranged between the water inlet system and the water outlet system outside the device body 1.
The overflow pipe 25 is arranged on the device body, and the overflow pipe 25 is higher than the highest point of the exhaust pipe bundle 2.
Further, an air preheating system 26 is arranged in the upper space of the device body 1, the air preheating system 26 comprises a plurality of tube bundles, one end of each tube bundle is communicated with the air outside the device, the other end of each tube bundle is communicated to the air storage chamber 16 of the vortex spraying burner, and the outer walls of the tube bundles are in contact with the rising flue gas.
Further, a condensing system 27 is arranged at the upper part of the device body 1, and the condensing system 27 comprises a compressor 28, one or more cold air circulation chambers 29 and one or more condensing tube bundles 30; two ends of each cold air circulation chamber 29 are communicated through one or more condensation tube bundles 30, a fan 31 and an evaporator 32 are arranged in each cold air circulation chamber 29, the outer walls of the condensation tube bundles 30 are in contact with the rising flue gas, the peripheral space of the condensation tube bundles 30 is communicated to an exhaust chimney 33 on the device body 1, and the evaporator 32 is connected to the compressor 28.
Preferably, two cool air circulation chambers 29 are provided.
Further, the condensing system further comprises a condensate return pipe, and the condensate return pipe is connected to a water inlet system arranged on the device body 1.
Further, one or more heat exchange devices 34 are arranged inside the device body 1, and a medium to be heated is introduced into the heat exchange devices.
The above description is only of the preferred embodiments of the present invention, and is not intended to limit the invention in any way, and some simple modifications, equivalent variations or modifications can be made by those skilled in the art using the teachings disclosed herein, which fall within the scope of the present invention.
Claims (5)
1. Combustion tail gas treatment and heat recovery device, its characterized in that: the device comprises a device body, wherein an exhaust tube bundle is arranged in the device body, the lower part of the exhaust tube bundle is communicated with a device body space outside the exhaust tube bundle, the upper part of the exhaust tube bundle is communicated to a combustion tail gas interface, and the exhaust tube bundle is completely immersed below the water surface in the device; the lower part of the exhaust tube bundle is connected to a jet disc arranged at the bottom of the device body, and the jet disc is completely immersed below the water surface in the device; an opening and closing device is arranged at a position, close to the exhaust end of the combustor, on the exhaust pipe bundle; the combustion tail gas interface is an exhaust end of a vortex-jet combustion engine, and the vortex-jet combustion engine comprises a flange, a tail turbine, a fuel supply system, a nozzle, an ignition system, an equipment shell, an air inlet turbofan, three groups of air inflow air doors, a main shaft, a central air duct sleeve and an outer air duct sleeve; the device comprises a device body, a device shell, a main shaft, a central air channel sleeve, an air inlet vortex fan, a tail turbine, a combustion chamber, a interlayer structure, a fuel supply system, a nozzle and an ignition system, wherein the device shell is connected to the device body through a flange, the center of the device shell penetrates through the main shaft, the central air channel sleeve is arranged outside the main shaft, the space between the central air channel sleeve and the main shaft is the central air channel, the outer air channel sleeve is arranged outside the central air channel sleeve, the space between the outer air channel sleeve and the central air channel sleeve is the combustion chamber, the main shaft is divided into a cavity, the interlayer structure is sequentially arranged in the cavity, the cavity is divided into three layers, the three layers of channels comprise the outer air channel, the combustion chamber and the central air channel, the fuel supply system, the nozzle and the ignition system are arranged in the combustion chamber, the space between the outer air channel sleeve and the device shell is the outer air channel, the two sides of the central air channel sleeve are respectively provided with the air inlet vortex fan and the tail turbine, the air inlet vortex fan and the tail turbine are arranged on the main shaft, and the air inlet ends of the air inlet vortex fan are provided with three groups of air inlet amount regulating air doors; the three groups of air inflow air doors are arranged on an air storage chamber in the device body; the three groups of air inflow air doors are designed into a shutter type; a water inlet system and a water outlet system are arranged on the device body; the water outlet system is a water outlet pipe inserted close to the inner wall of the device body, and a bubble baffle is arranged on one side of the water outlet pipe away from the inner wall; an air preheating system is arranged in the upper space of the device body, the air preheating system comprises a plurality of tube bundles, one end of each tube bundle is communicated with the air outside the device, the other end of each tube bundle is communicated to an air storage chamber of the combustor, and the outer walls of the plurality of tube bundles are contacted with rising flue gas; the upper part of the device body is provided with a condensing system, and the condensing system comprises a compressor, one or more cold air circulation chambers and one or more condensing tube bundles; the two ends of each cold air circulation cavity are communicated through one or more condensation tube bundles, a fan and an evaporator are arranged in each cold air circulation cavity, the outer walls of the condensation tube bundles are in contact with rising flue gas, the peripheral space of each condensation tube bundle is communicated to an exhaust chimney on the device body, and the evaporator is connected to the compressor.
2. The combustion exhaust gas treatment and heat recovery apparatus according to claim 1, wherein: the water inlet system is a water distributor with the inner wall circumferentially arranged, the water distributor is an annular water pipe, a water inlet and a water outlet are arranged on the annular water pipe, and a plurality of water jet holes are circumferentially distributed.
3. The combustion exhaust gas treatment and heat recovery apparatus according to claim 1, wherein: the dispensing system is connected to the recovery device by the water inlet system.
4. The combustion exhaust gas treatment and heat recovery apparatus according to claim 1, wherein: and the overflow pipe is arranged on the device body and is higher than the highest point of the exhaust pipe bundle.
5. The combustion exhaust gas treatment and heat recovery apparatus according to claim 1, wherein: one or more heat exchange devices are arranged in the device body, and a medium to be heated is introduced into the heat exchange devices.
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| CN109718109B (en) * | 2019-02-22 | 2021-07-06 | 安徽华润金蟾药业股份有限公司 | Heat recovery device for processing process of traditional Chinese medicine decoction pieces |
| CN110354610A (en) * | 2019-07-17 | 2019-10-22 | 宁波优普电子有限公司 | Waste gas treatment equipment is used in a kind of energy-saving and environment-friendly automobile tire processing |
| CN111744297A (en) * | 2020-06-03 | 2020-10-09 | 南京中电环保固废资源有限公司 | Tail gas dust removal waste heat recovery system |
| CN112864408A (en) * | 2020-12-23 | 2021-05-28 | 周宗霞 | Equipment for removing and recycling mercury for waste battery |
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