CN110548376A - Desulfurization and denitrification's boiler waste heat recovery device - Google Patents
Desulfurization and denitrification's boiler waste heat recovery device Download PDFInfo
- Publication number
- CN110548376A CN110548376A CN201910912769.3A CN201910912769A CN110548376A CN 110548376 A CN110548376 A CN 110548376A CN 201910912769 A CN201910912769 A CN 201910912769A CN 110548376 A CN110548376 A CN 110548376A
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- CN
- China
- Prior art keywords
- desulfurization
- denitrification
- chamber
- baffle plate
- waste heat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/60—Simultaneously removing sulfur oxides and nitrogen oxides
-
- 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
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/79—Injecting reactants
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28C—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACT WITHOUT CHEMICAL INTERACTION
- F28C3/00—Other direct-contact heat-exchange apparatus
- F28C3/06—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2062—Ammonia
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a desulfurization and denitrification boiler waste heat recovery device, which comprises at least one tower type module unit, wherein the tower type module unit comprises a tower body, the inner cavity of the tower body is divided into a desulfurization and denitrification chamber, a pesticide storage chamber and a spraying chamber by an upper partition plate and a lower partition plate, an air inlet pipe and an air outlet pipe are communicated with the outer side of the desulfurization and denitrification chamber, a vertical rod is fixed between the central parts of the upper partition plate and the lower partition plate, a water supply pipe is arranged in the middle of the vertical rod in a penetrating mode, the bottom end of the water supply pipe penetrates through the lower partition plate and is connected with a pump body in the pesticide storage chamber, the top end of the water supply pipe penetrates through the upper partition plate and is connected with the spraying chamber, spiral blades are fixed on the outer side of the vertical rod, liquid dripping holes. The invention has reasonable structural design, the smoke rotates and rises under the guiding action of the helical blades, and the contact area between gas and liquid is increased; the flue gas rises the in-process and contacts with the heat transfer water course, can realize waste heat recovery when not influencing SOx/NOx control.
Description
Technical Field
The invention relates to the technical field of industrial boilers, in particular to a desulfurization and denitrification boiler waste heat recovery device.
Background
The technology for simultaneously desulfurizing and denitrating the flue gas is mostly in the research and industrial demonstration stages at present, but the technology can simultaneously realize desulfurization and denitration in a set of system, particularly along with the continuous strictness of the control standard of NO X, the technology for simultaneously desulfurizing and denitrating is increasingly emphasized by various countries.
Therefore, the patent specification with the publication number CN109340800A discloses a boiler waste heat recovery device for desulfurization and denitrification, which mainly comprises: the desulfurization and denitrification reactor is of a vertically arranged cylindrical cavity structure; a smoke inlet communicated with the inside is formed in any one side of the bottom of the desulfurization and denitrification reactor; the top of the desulfurization and denitrification reactor is provided with a smoke outlet communicated with the inside; a desulfurization device is arranged below the smoke outlet in the desulfurization and denitrification reactor; a denitration catalytic core is arranged below the desulfurization device; the flash evaporation box is of an annular cavity structure coaxially arranged in the desulfurization and denitrification reactor, the side wall of the flash evaporation box is provided with an internally-penetrated water inlet pipe, and one end of the water inlet pipe, which is far away from the flash evaporation box, extends outwards through a hole penetrating the inside of the desulfurization and denitrification reactor and is communicated with the outlet end of the high-pressure pump; the flash tank top is equipped with the exhaust, and the blast pipe runs through SOx/NOx control reactor inside wall and extends to the outside, communicates with the steam drum. But this kind of SOx/NOx control's boiler waste heat recovery device has the weak point, does not form the modularization unit, can not select the modularization unit of suitable quantity in order to satisfy SOx/NOx control demand according to the concrete conditions of flue gas, has the big, the costly problem of manufacturing process degree of difficulty.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provide a boiler waste heat recovery device for desulfurization and denitrification.
In order to achieve the technical purpose and achieve the technical effect, the invention is realized by the following technical scheme:
A desulfurization and denitrification boiler waste heat recovery device comprises at least one tower type module unit, wherein the tower type module unit comprises a tower body, the inner cavity of the tower body is divided into three chambers by an upper baffle plate and a lower baffle plate, the chamber between the upper baffle plate and the lower baffle plate is a desulfurization and denitrification chamber, the chamber below the lower baffle plate is a chemical storage chamber, the chamber above the upper baffle plate is used as a spray chamber, spray holes are uniformly distributed on the plate body of the upper baffle plate, drain holes are uniformly distributed on the plate body of the lower baffle plate, an air inlet pipe is communicated with the outer side of the desulfurization and denitrification chamber close to the lower part, an air outlet pipe is communicated with the upper part of the desulfurization and denitrification chamber, a vertical rod is fixed between the central parts of the upper baffle plate and the lower baffle plate, a water supply pipe penetrates through the middle part of the vertical rod, the bottom end of the water supply pipe penetrates through the lower baffle plate and is connected with the chemical storage chamber, a filter screen, the utility model discloses a desulfurization and denitration room, including desulfurization and denitration room, helical blade's lamellar body equipartition has the drip hole, helical blade and desulfurization and denitration indoor wall form helical channel, desulfurization and denitration room is fixed with the heat transfer water course along the helical channel inner wall, the both ends of heat transfer water course are equipped with inlet tube and the outlet pipe that runs through the tower body.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, the outer ends of the respective pipe bodies of the gas inlet pipe and the gas outlet pipe are provided with the flange plates.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, when the number of the tower-type module units is two or more, the tower-type module units are connected in series through the hose.
Furthermore, in the boiler waste heat recovery device for desulfurization and denitrification, the upper part of the outer side of the chemical storage chamber is communicated with a chemical feeding pipe, and the lower part of the outer side of the chemical storage chamber is communicated with a discharging pipe.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, the chemical liquid in the chemical storage chamber is ammonia water.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, the upright rods and the helical blades are both made of heat-resistant PVC materials.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, the whole heat exchange water channel is of a spiral structure, the cross section of the heat exchange water channel is semicircular, and the right-angle side is attached to the inner wall of the desulfurization and denitrification chamber.
Further, in the boiler waste heat recovery device for desulfurization and denitrification, the heat exchange water channel is made of quartz materials.
the invention has the beneficial effects that:
X XThe invention has reasonable structural design, when flue gas enters the desulfurization and denitrification chamber from the gas inlet pipe at the bottom of the tower body, the flue gas rotates and rises under the guiding action of the spiral blades, slurry flowing downwards one by one is sprayed on the spiral blades to form fine fog drops, SO that the contact area between gas and liquid is increased sharply, the liquid drops are driven by gas flow to rotate, the contact between the gas and the liquid is strengthened by the generated centrifugal force, and the liquid drops are thrown onto the wall of the tower and flow downwards along the wall.
Of course, it is not necessary for any one product that embodies the invention to achieve all of the above advantages simultaneously.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic top view of the lower partition plate of the present invention;
FIG. 3 is a schematic cross-sectional view of a heat exchange water channel of the present invention;
In the drawings, the parts are numbered as follows:
1-tower body, 2-upper partition plate, 3-lower partition plate, 4-desulfurization and denitrification chamber, 5-drug storage chamber, 6-spray chamber, 7-air inlet pipe, 8-air outlet pipe, 9-vertical rod, 10-water supply pipe, 11-pump body, 12-filter screen cover, 13-helical blade, 14-dropping hole, 15-heat exchange water channel, 16-drug feeding pipe and 17-discharge pipe.
Detailed Description
the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 3, the present embodiment is a boiler waste heat recovery device for desulfurization and denitrification, including at least one tower module unit, and when the number of the tower module units is two or more, the tower module units are connected in series through a hose.
The tower type modular unit comprises a tower body 1, and an inner cavity of the tower body 1 is divided into three chambers by an upper partition plate 2 and a lower partition plate 3. Go up the cavity between baffle 2, the lower baffle 3 and be SOx/NOx control room 4, the cavity of lower baffle below is medicine storage chamber 5, goes up the cavity of 3 tops of baffle and regards as spray room 6. The plate body of the upper baffle plate 2 is uniformly provided with spraying holes, and the plate body of the lower baffle plate 3 is uniformly provided with draining holes. An air inlet pipe 7 is communicated with the outer side of the desulfurization and denitrification chamber 4 close to the lower part, and an air outlet pipe 8 is communicated with the outer side of the desulfurization and denitrification chamber close to the upper part. An upright rod 9 is fixed between the central parts of the upper partition board 2 and the lower partition board 3, and a water supply pipe 10 is arranged in the middle of the upright rod 9 in a penetrating way. The bottom end of the water supply pipe 10 penetrates through the lower partition plate 3 to be connected with a pump body 11 in the medicine storage chamber 5, a filter screen cover 12 is fixed on the outer side of the pump body 11 of the medicine storage chamber 5, and the top end of the water supply pipe 10 penetrates through the upper partition plate 2 to be connected with the spray chamber 6. The outside that SOx/NOx control room 4 is located pole setting 9 is fixed with helical blade 13, and helical blade 13's outer border links firmly with SOx/NOx control room 4's inner wall, and helical blade 13's lamellar body equipartition has drip hole 14. Helical blade 13 forms helical channel with 4 inner walls of SOx/NOx control room, and SOx/NOx control room 4 is fixed with heat transfer water course 15 along the helical channel inner wall, and the both ends of heat transfer water course 15 are equipped with inlet tube and the outlet pipe that runs through tower body 1.
in this embodiment, the flange is arranged at the outer end of each of the air inlet pipe 7 and the air outlet pipe 8.
In this embodiment, the upper part of the outer side of the medicine storage chamber 5 is communicated with a medicine feeding pipe 16, and the lower part is communicated with a discharging pipe 17. The liquid medicine in the medicine storage chamber 5 is ammonia water.
In this embodiment, the upright rod 9 and the helical blade 13 are both made of heat-resistant PVC material.
In this embodiment, the whole spiral structure that is of heat transfer water course 15, the cross-section semicircular in shape of heat transfer water course 15, and the right-angle side pastes and leans on at SOx/NOx control indoor 4 inner wall. The heat exchange water channel 15 is made of quartz material.
One specific application of this embodiment is: this embodiment structural design is reasonable, and when the flue gas got into SOx/NOx control room 4 by tower body 1 bottom intake pipe 7, because helical blade 13's guide effect and rotatory rising to will be gradually the thick liquids of board downflow spout into fine fog droplet on helical blade 13, make the area of contact between the gas-liquid sharply increase, the liquid droplet is driven by the air current and is rotatory, the contact between the centrifugal force reinforcing gas-liquid that produces is thrown to on the tower wall at last, flows down along the wall. Because good gas-liquid contact conditions are provided in the tower, SOX and NOX in the gas are fully absorbed by ammonia water, thereby achieving the purification effect; meanwhile, the flue gas is contacted with the heat exchange water channel 15 in the ascending process, so that the waste heat recovery can be realized while the desulfurization and denitrification are not influenced.
the preferred embodiments of the invention disclosed above are intended to be illustrative only. The preferred embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims (8)
1. The utility model provides a SOx/NOx control's boiler waste heat recovery device, includes at least one tower modular unit, its characterized in that: the tower type module unit comprises a tower body, the inner cavity of the tower body is divided into three chambers by an upper baffle plate and a lower baffle plate, the chamber between the upper baffle plate and the lower baffle plate is a desulfurization and denitrification chamber, the chamber below the lower baffle plate is a medicine storage chamber, the chamber above the upper baffle plate is used as a spray chamber, the plate body of the upper baffle plate is uniformly distributed with spray holes, the plate body of the lower baffle plate is uniformly distributed with draining holes, the outer side of the desulfurization and denitrification chamber is communicated with an air inlet pipe close to the lower part and is communicated with an air outlet pipe close to the upper part, a vertical rod is fixed between the central parts of the upper baffle plate and the lower baffle plate, the middle part of the vertical rod is provided with a water supply pipe in a penetrating way, the bottom end of the water supply pipe penetrates through the lower baffle plate and is connected with a pump body in the medicine storage chamber, the medicine storage chamber is fixed with a filter screen cover on the, and helical blade's outer fringe links firmly with the inner wall of SOx/NOx control room, helical blade's lamellar body equipartition has the drip hole, helical blade and SOx/NOx control room inner wall form helical channel, SOx/NOx control room is fixed with the heat transfer water course along the helical channel inner wall, the both ends of heat transfer water course are equipped with inlet tube and the outlet pipe that runs through the tower body.
2. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: and the outer ends of the respective pipe bodies of the air inlet pipe and the air outlet pipe are provided with flange plates.
3. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: when the number of the tower type module units is two or more, the tower type module units are connected in series through the hose.
4. the desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: the upper part of the outer side of the medicine storage chamber is communicated with a medicine feeding pipe, and the lower part of the outer side of the medicine storage chamber is communicated with a material discharging pipe.
5. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: the liquid medicine in the medicine storage chamber is ammonia water.
6. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: the upright rods and the helical blades are both made of heat-resistant PVC materials.
7. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: the whole spiral structure that is of heat transfer water course, the cross-section semicircular in shape of heat transfer water course, and right-angle side pastes and leans on at SOx/NOx control indoor wall.
8. The desulfurization and denitrification boiler waste heat recovery device according to claim 1, characterized in that: the heat exchange water channel is made of quartz materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912769.3A CN110548376A (en) | 2019-09-25 | 2019-09-25 | Desulfurization and denitrification's boiler waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910912769.3A CN110548376A (en) | 2019-09-25 | 2019-09-25 | Desulfurization and denitrification's boiler waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110548376A true CN110548376A (en) | 2019-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910912769.3A Withdrawn CN110548376A (en) | 2019-09-25 | 2019-09-25 | Desulfurization and denitrification's boiler waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110548376A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772963A (en) * | 2019-12-19 | 2020-02-11 | 哈尔滨中科天德节能环保科技有限公司 | Desulfurization, dust removal, denitration, waste heat recovery integration are equipped and clean system thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702893A (en) * | 1985-06-27 | 1987-10-27 | Kirk Samuel A | Acid air pollution precipitators |
| CN2510149Y (en) * | 2001-12-06 | 2002-09-11 | 杨振坤 | Double helical-blade guiding dust-collection and desulfurization apparatus |
| CN104906937A (en) * | 2015-06-11 | 2015-09-16 | 威海恒邦化工有限公司 | Flue gas desulfurization and denitrification device and method of coal fired boiler |
| CN205886567U (en) * | 2016-05-25 | 2017-01-18 | 常州市东南热电有限公司 | Steam power plant's tail gas remains utilization of heat device |
| CN209060847U (en) * | 2018-09-28 | 2019-07-05 | 重庆九橡化大橡胶科技有限责任公司 | Regnerated rubber powder processing vulcanizing treatment equipment |
| CN110180386A (en) * | 2019-06-24 | 2019-08-30 | 台州临港热电有限公司 | A kind of flue gas spiral diffusion denitrification apparatus and method of denitration |
-
2019
- 2019-09-25 CN CN201910912769.3A patent/CN110548376A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4702893A (en) * | 1985-06-27 | 1987-10-27 | Kirk Samuel A | Acid air pollution precipitators |
| CN2510149Y (en) * | 2001-12-06 | 2002-09-11 | 杨振坤 | Double helical-blade guiding dust-collection and desulfurization apparatus |
| CN104906937A (en) * | 2015-06-11 | 2015-09-16 | 威海恒邦化工有限公司 | Flue gas desulfurization and denitrification device and method of coal fired boiler |
| CN205886567U (en) * | 2016-05-25 | 2017-01-18 | 常州市东南热电有限公司 | Steam power plant's tail gas remains utilization of heat device |
| CN209060847U (en) * | 2018-09-28 | 2019-07-05 | 重庆九橡化大橡胶科技有限责任公司 | Regnerated rubber powder processing vulcanizing treatment equipment |
| CN110180386A (en) * | 2019-06-24 | 2019-08-30 | 台州临港热电有限公司 | A kind of flue gas spiral diffusion denitrification apparatus and method of denitration |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110772963A (en) * | 2019-12-19 | 2020-02-11 | 哈尔滨中科天德节能环保科技有限公司 | Desulfurization, dust removal, denitration, waste heat recovery integration are equipped and clean system thereof |
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| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20191210 |
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| WW01 | Invention patent application withdrawn after publication |