CN109405579A - A kind of improved high-efficiency smoke heat replacing device - Google Patents
A kind of improved high-efficiency smoke heat replacing device Download PDFInfo
- Publication number
- CN109405579A CN109405579A CN201811091799.4A CN201811091799A CN109405579A CN 109405579 A CN109405579 A CN 109405579A CN 201811091799 A CN201811091799 A CN 201811091799A CN 109405579 A CN109405579 A CN 109405579A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- water
- filler
- heat
- heat exchange
- 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.)
- Pending
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Classifications
-
- 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
- F28C3/08—Other direct-contact heat-exchange apparatus the heat-exchange media being a liquid and a gas or vapour with change of state, e.g. absorption, evaporation, condensation
-
- 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
-
- 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
- F28C1/00—Direct-contact trickle coolers, e.g. cooling towers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F25/00—Component parts of trickle coolers
- F28F25/02—Component parts of trickle coolers for distributing, circulating, and accumulating liquid
- F28F25/08—Splashing boards or grids, e.g. for converting liquid sprays into liquid films; Elements or beds for increasing the area of the contact surface
-
- 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)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention patent proposes a kind of improved high-efficiency smoke heat replacing device, including gas inlet (1), overflow port (2), cooling water outlet (3), sewage draining exit (4), shut-off valve (5), internal circulation pump (6), access hole (8), cooling water inlet (9), exhanst gas outlet (10), demister (11), water distributor (12), filler (13), captation (14), spray equipment (15), even distribution device (17).The present invention is remarkably improved air water heat exchange efficiency, has carried out anti-blocking optimization design, disappears white to flue gas progress deep temperature reduction dehumidifying, can reduce equipment investment cost, reduce systematic running cost and use.
Description
Technical field
The present invention relates to a kind of improved high-efficiency smoke heat replacing devices, are used in fire coal boiler fume more particularly, to one kind
With the high-efficiency heat exchanger in gas fired-boiler smoke waste heat utilization system.
Background technique
The increasingly serious air pollution of northern area and country widely popularize under energy-saving and environment-friendly overall background, and various regions constantly push away
It is transformed into clean energy resource, sufficiently excavates various residual heat resources, promote heat supply guarantee.Steam power plant's waste heat is mainly utilized there are two types of shape
Formula: fume afterheat utilizes and circulating water afterheat utilizes.One of core equipment is air water heat exchange dress in smoke waste heat utilization system
It sets, main heat exchange mode: contact heat exchange and indirect type heat exchange.Contact heat exchange mainly using mode is directly sprayed, passes through
Nozzle forms fine mist by cooling water, and effectively control mist droplet particle size, droplet are fallen from top to bottom, and progress is directly contacted with flue gas
Heat exchange.The contact heat-exchanging time is to influence one of heat transfer effect key factor, generally needs 5s or more, if flue gas flow rate control is in 5m/s
When, the heat-exchanger rig is in flow of flue gas direction at least 25m or more.The contact heat-exchanging time is improved according to flue gas flow rate is reduced,
Then the sectional area of heat-exchanger rig can significantly increase.Indirect type heat exchange is by heat-transfer pipe as heat transfer element, and tube side is leaked water, shell side
It is flat.Heat transfer wall resistance make the overall heat-transfer coefficient of indirect type heat-exchanger rig smaller, the total heat conduction area of heat transfer element just compared with
Greatly, equipment investment is larger.The heat exchange difference of indirect type heat exchange simultaneously is larger, the heat exchange efficiency of equipment compared to contact exchange heat compared with
Difference.
In conclusion the air water heat-exchanger rig in current smoke waste heat utilization system, according to directly spray mode, equipment
Size be not flow of flue gas direction be exactly can be larger in cross-sectional direction, it is higher to practical matter purpose site requirement.According to
Formula heat exchange is connect, heat-exchanger rig investment is larger, while overall heat exchange efficiency is relatively low, and easily blocks.
Summary of the invention
The present invention provides a kind of improved high-efficiency smoke heat replacing device, is used in fire coal boiler fume more particularly, to one kind
With the high-efficiency heat exchanger in gas fired-boiler smoke waste heat utilization system, to solve the deficiency in the prior art.
The present invention provides a kind of improved high-efficiency smoke heat replacing device, and described device includes gas inlet (1), overflow port
(2), cooling water outlet (3), sewage draining exit (4), shut-off valve (5), internal circulation pump (6), access hole (8), cooling water inlet (9), cigarette
Gas outlet (10), water distributor (12), filler (13), captation (14), spray equipment (15), arranges demister (11)
Set components such as (17).
It is characterized by: fire coal boiler fume or gas fired-boiler flue gas are entered in device by gas inlet (1), flue gas is logical
The even action distribution flow field of even distribution device (15) is crossed, is first dripped carry out the with from the atomized liquid that spray equipment (14) sprays
Direct contact type heat exchange.Flue gas carries out second of contact heat exchange with night film water in filler (13) after cooling, most
Afterwards, flue gas is discharged by demister (11) from exhanst gas outlet (10).External cooling water enters water distributor from cooling water inlet (9)
(12), captation (14) are pooled to from filler (13) evenly dispersedly, finally flow to water pond (18) along cylinder inboard wall (16).
Described device is additionally arranged interior cyclic hardening heat-exchange system, the cooling water in water pond (18) by internal circulation pump (6), pipeline (7),
Spray equipment (15) is formed the atomized drop of certain partial size by the nozzle of spray equipment (15), flowed after being exchanged heat with flue gas
Enter water pond (18).The liquid level in water pond (18) is controlled by overflow port (2).
Further, the even distribution device (15) uses the perforated plate construction of different-diameter, adjusts import flue gas flow field,
Even distribution flue gas.
Further, the filler (13) is Intalox metal tower packing, and material is corrosion resistant 316L resistant to high temperature or steel alloy.
Further, the present apparatus controls water liquid level and water-holding quantity by overflow port (2), guarantees enough recirculated water
Amount and pump cavitation surplus realize high, medium and low three kinds of Liquid levels.
Further, the present apparatus is additionally arranged internal circulation system, leads to internal circulation pump (6), pipeline (7), spray equipment
(15) increase the circulating ratio of cooling water, enhanced heat exchange improves overall heat exchange efficiency, to the direct Washing of flue gas, flue gas ash removal
To solve filler blocking.
The present invention provides a kind of improved high-efficiency smoke heat replacing device, and one kind being used in fire coal boiler fume and gas fired-boiler
High-efficiency heat exchanger in smoke waste heat utilization system.Flue gas is exchanged heat twice in the device, and heat exchange is flue gas for the first time
Drip with the atomized liquid sprayed from spray equipment (15) direct contact when, effectively control cooling water atomizing particle size, can be reduced
The flow resistance of fume side reduces breeze fan energy consumption.In filler (13), the Intalox metal tower packing of selection can be allowed for second of heat exchange
Cooling water has in filler surface is preferably uniformly distributed performance, flue gas stream in filler also can Uniform Flow, while filler
The contact surface for increasing solution-air is increased, ensure that efficient heat exchange efficiency.
The advantages of directly spray heat exchange is utilized in first stage heat exchange: flue gas collateral resistance is small, directly washes away to flue gas washing
Wash depth dedusting.Second stage heat exchange is utilized the advantages of material filling type contact heat exchange: filler specific surface is big, heat exchange efficiency
It is high.The efficient combination of two kinds of heat exchange modes reduces equipment size and investment, reduces operating cost, the realization pair of high efficient heat exchanging efficiency
Disappear in the dehumidifying of flue gas deep condensation white, largely to be created conditions using vapor latent heat in obvious heat of smoke and flue gas.
Detailed description of the invention
Fig. 1 is a kind of improved high-efficiency smoke heat replacing device structural schematic diagram of the present invention.
Fig. 2 is even distribution device (17) structural schematic diagram.
Specific embodiment
The present invention provides a kind of improved high-efficiency smoke heat replacing device, and described device includes gas inlet (1), overflow port
(2), cooling water outlet (3), sewage draining exit (4), shut-off valve (5), internal circulation pump (6), access hole (8), cooling water inlet (9), cigarette
Gas outlet (10), water distributor (12), filler (13), captation (14), spray equipment (15), arranges demister (11)
Set components such as (17).
It is characterized by: fire coal boiler fume or gas fired-boiler flue gas are entered in device by gas inlet (1), flue gas is logical
The even action distribution flow field of even distribution device (15) is crossed, is first dripped carry out the with from the atomized liquid that spray equipment (14) sprays
Direct contact type heat exchange.Flue gas carries out second of contact heat exchange with night film water in filler (13) after cooling, most
Afterwards, flue gas is discharged by demister (11) from exhanst gas outlet (10).External cooling water enters water distributor from cooling water inlet (9)
(12), captation (14) are pooled to from filler (13) evenly dispersedly, finally flow to water pond (18) along cylinder inboard wall (16).
Described device is additionally arranged interior cyclic hardening heat-exchange system, the cooling water in water pond (18) by internal circulation pump (6), pipeline (7),
Spray equipment (15) is formed the atomized drop of certain partial size by the nozzle of spray equipment (15), flowed after being exchanged heat with flue gas
Enter water pond (18).The liquid level in water pond (18) is controlled by overflow port (2).
Further, the even distribution device (15) uses the perforated plate construction of different-diameter, and structure type is detailed in Fig. 2,
The device can adjust import flue gas flow field, and flue gas is made to form more uniform flowing pressure in heat-exchanger rig, reduce on smoke inlet
The pressure distortion for rising section prevents flue gas bias current and vortex from occurring, improves gas-liquid heat exchange efficiency.
Further, the filler (13) is Intalox metal tower packing, and material is corrosion resistant 316L resistant to high temperature or steel alloy.Filler
Bigger serface can significantly improve heat transfer efficiency, while rectangular saddle ring structure type has biggish voidage, can reduce fume side
Flow resistance, larger fluid circulation can improve filler bulk property, prevent nested overlapping, conducive to being evenly distributed with for liquid, reduce
Wall effect.
Further, the present apparatus controls water liquid level and water-holding quantity, meeting after flue gas heat exchange cooling by overflow port (2)
A large amount of condensed water is generated, smoke waste heat utilization system passes through water as circulation vector and carries out UTILIZATION OF VESIDUAL HEAT IN, therefore need to be by flue gas
The condensed water of middle generation exhausts, and by high, medium and low three kinds different Liquid levels, is guaranteeing the enough quantity of circulating water of system and water
In the case of cavitation of pump, heat-exchanger rig is made to adapt to the operating condition of different flue gas loads.
Further, the present apparatus is additionally arranged internal circulation system, leads to internal circulation pump (6), pipeline (7), spray equipment
(15) increase the circulating ratio of cooling water, enhanced heat exchange improves overall heat exchange efficiency.When the higher operating condition of gas inlet temperature, lead to
First depth heat exchange can be carried out to flue gas by crossing internal circulation system.Pass through internal circulation system there are certain flue dust in flue gas simultaneously
To the direct Washing of flue gas, flue gas is carried out further to drop dirty dedusting, flue gas is reduced and carries larger particles, filler is avoided to send out
Raw blocking.
The present invention provides a kind of improved high-efficiency smoke heat replacing device, and one kind being used in fire coal boiler fume and gas fired-boiler
High-efficiency heat exchanger in smoke waste heat utilization system.Flue gas is exchanged heat twice in the device, and heat exchange is flue gas for the first time
Drip with the atomized liquid sprayed from spray equipment (15) direct contact when, effectively control cooling water atomizing particle size, can be reduced
The flow resistance of fume side reduces breeze fan energy consumption.In filler (13), the Intalox metal tower packing of selection can be allowed for second of heat exchange
Cooling water has in filler surface is preferably uniformly distributed performance, flue gas stream in filler also can Uniform Flow, while filler
The contact surface for increasing solution-air is increased, ensure that efficient heat exchange efficiency.
The advantages of directly spray heat exchange is utilized in first stage heat exchange: flue gas collateral resistance is small, directly washes away to flue gas washing
Wash depth dedusting.Second stage heat exchange is utilized the advantages of material filling type contact heat exchange: filler specific surface is big, heat exchange efficiency
It is high.The efficient combination of two kinds of heat exchange modes reduces equipment size and investment, reduces operating cost, the realization pair of high efficient heat exchanging efficiency
Disappear in the dehumidifying of flue gas deep condensation white, largely to be created conditions using vapor latent heat in obvious heat of smoke and flue gas.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of improved high-efficiency smoke heat replacing device, it is common to use utilized in fire coal boiler fume and gas fired-boiler fume afterheat
System, the device include gas inlet (1), overflow port (2), cooling water outlet (3), sewage draining exit (4), shut-off valve (5), interior circulation
Pump (6), access hole (8), cooling water inlet (9), exhanst gas outlet (10), demister (11), water distributor (12), filler (13),
The components such as captation (14), spray equipment (15), even distribution device (17).It is characterized by: fire coal boiler fume or gas-fired boiler
Kiln gas is entered in device by gas inlet (1), and flue gas is distributed flow field by the even action of even distribution device (15), first with from
The atomized liquid that spray equipment (14) sprays, which drips, carries out first time direct contact type heat exchange.Flue gas is in filler after cooling
(13) second of contact heat exchange is carried out with night film water in, finally, flue gas passes through demister (11) from exhanst gas outlet (10)
Discharge.External cooling water enters water distributor (12) from cooling water inlet (9), is pooled to the dress that catchments from filler (13) evenly dispersedly
(14) are set, finally flow to water pond (18) along cylinder inboard wall (16).Described device is additionally arranged interior cyclic hardening heat-exchange system, water
Cooling water in pond (18) passes through internal circulation pump (6), pipeline (7), spray equipment (15), passes through the nozzle shape of spray equipment (15)
At the atomized drop of certain partial size, water pond (18) are flowed into after being exchanged heat with flue gas.The liquid level in water pond (18) passes through overflow
Mouth (2) control.
2. a kind of improved high-efficiency smoke heat replacing device according to claim 1, it is characterised in that: the even distribution device (17) uses
The perforated plate construction of different-diameter adjusts import flue gas flow field, is uniformly distributed flue gas.
3. a kind of improved high-efficiency smoke heat replacing device according to claim 1, it is characterised in that: the filler (14) is rectangular saddle ring
Filler, material are corrosion resistant 316L resistant to high temperature or steel alloy.
4. a kind of improved high-efficiency smoke heat replacing device according to claim 1, it is characterised in that: the present apparatus passes through overflow port
(2) water liquid level and water-holding quantity are controlled, guarantees enough quantity of circulating water and pump cavitation surplus, realizes high, medium and low three kinds of liquid levels
Control.
5. a kind of improved high-efficiency smoke heat replacing device according to claim 1, it is characterised in that: the present apparatus is additionally arranged interior follow
Loop system, leads to the circulating ratio of internal circulation pump (6), pipeline (7), spray equipment (15) increase cooling water, and enhanced heat exchange improves dress
Overall heat exchange efficiency is set, also to the direct Washing of flue gas, flue gas further drops dirty dedusting in advance and filler is avoided to block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091799.4A CN109405579A (en) | 2018-09-19 | 2018-09-19 | A kind of improved high-efficiency smoke heat replacing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811091799.4A CN109405579A (en) | 2018-09-19 | 2018-09-19 | A kind of improved high-efficiency smoke heat replacing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109405579A true CN109405579A (en) | 2019-03-01 |
Family
ID=65465113
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811091799.4A Pending CN109405579A (en) | 2018-09-19 | 2018-09-19 | A kind of improved high-efficiency smoke heat replacing device |
Country Status (1)
| Country | Link |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195986A (en) * | 2019-07-02 | 2019-09-03 | 新疆博纳格材料科技有限公司 | One kind being used for water-saving white waste heat and the water reclamation system of disappearing of power plant |
| CN110274491A (en) * | 2019-07-15 | 2019-09-24 | 中能服能源科技股份有限公司 | One kind being used for flue contact smoke heat replacing device |
| CN110643759A (en) * | 2019-10-28 | 2020-01-03 | 秦皇岛中青冶金阀门有限公司 | Compact smoke white eliminating device |
| CN111810324A (en) * | 2020-07-31 | 2020-10-23 | 中船动力研究院有限公司 | Waste gas cooling device |
| WO2021008143A1 (en) * | 2019-07-15 | 2021-01-21 | 山东贝诺冷却设备股份有限公司 | Filler sheet, filler module, and cooling tower |
| CN112728687A (en) * | 2021-03-05 | 2021-04-30 | 中国科学技术大学 | Hierarchical type micro-mist filler humidifier |
| CN114061331A (en) * | 2021-11-30 | 2022-02-18 | 北方化学工业股份有限公司 | Device and method for recovering waste heat in nitrocotton boiling and washing process |
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| CN108096966A (en) * | 2016-12-27 | 2018-06-01 | 昊姆（上海）节能科技有限公司 | Flue-gas purification equipment |
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| GB254686A (en) * | 1925-07-06 | 1926-08-05 | Norton Co Ltd Sir James Farmer | Improvements in and relating to mercerising machines |
| CN202274770U (en) * | 2011-10-29 | 2012-06-13 | 张峻 | Condenser for boiler |
| CN104014236A (en) * | 2014-06-19 | 2014-09-03 | 南京凯盛开能环保能源有限公司 | Smoke purifying and residual heat deep recycling integrated device |
| CN204469533U (en) * | 2015-01-28 | 2015-07-15 | 华能国际电力股份有限公司 | A kind of fractional order reaction composite desulfate tower |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110195986A (en) * | 2019-07-02 | 2019-09-03 | 新疆博纳格材料科技有限公司 | One kind being used for water-saving white waste heat and the water reclamation system of disappearing of power plant |
| CN110195986B (en) * | 2019-07-02 | 2024-03-26 | 新疆博纳格材料科技有限公司 | Water-saving white waste heat removal and water recovery system for power plant |
| CN110274491A (en) * | 2019-07-15 | 2019-09-24 | 中能服能源科技股份有限公司 | One kind being used for flue contact smoke heat replacing device |
| WO2021008143A1 (en) * | 2019-07-15 | 2021-01-21 | 山东贝诺冷却设备股份有限公司 | Filler sheet, filler module, and cooling tower |
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| CN110643759A (en) * | 2019-10-28 | 2020-01-03 | 秦皇岛中青冶金阀门有限公司 | Compact smoke white eliminating device |
| CN110643759B (en) * | 2019-10-28 | 2024-05-07 | 秦皇岛中青冶金阀门有限公司 | Compact type smoke whitening device |
| CN111810324A (en) * | 2020-07-31 | 2020-10-23 | 中船动力研究院有限公司 | Waste gas cooling device |
| CN112728687A (en) * | 2021-03-05 | 2021-04-30 | 中国科学技术大学 | Hierarchical type micro-mist filler humidifier |
| CN114061331A (en) * | 2021-11-30 | 2022-02-18 | 北方化学工业股份有限公司 | Device and method for recovering waste heat in nitrocotton boiling and washing process |
| CN114061331B (en) * | 2021-11-30 | 2023-09-15 | 北方化学工业股份有限公司 | Device and method for recovering waste heat in nitrocotton boiling and washing process |
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