CN201344550Y - Damper seal air system of desulfurization flue gas pipeline - Google Patents
Damper seal air system of desulfurization flue gas pipeline Download PDFInfo
- Publication number
- CN201344550Y CN201344550Y CNU2008202145274U CN200820214527U CN201344550Y CN 201344550 Y CN201344550 Y CN 201344550Y CN U2008202145274 U CNU2008202145274 U CN U2008202145274U CN 200820214527 U CN200820214527 U CN 200820214527U CN 201344550 Y CN201344550 Y CN 201344550Y
- Authority
- CN
- China
- Prior art keywords
- flue gas
- baffle door
- desulfurization
- valve
- seal
- 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.)
- Expired - Lifetime
Links
Images
Abstract
The utility model relates to a damper seal air system of a desulfurization flue gas pipeline, comprising a flue gas header pipe, a header pipe damper, a desulfurization flue gas inlet pipe, a flue gas inlet pipe damper, a desulfurization flue gas outlet pipe and a flue gas outlet pipe damper. The dampers are all provided with baffles; each damper is respectively connected with a seal air mechanism through a pipeline; and the seal air mechanism comprises a seal fan, a heater, a muffler and a check valve, wherein the seal fan is provided with an outlet shutdown valve, and the heater is provided with a front shutdown valve, a rear shutdown valve and a bypass shutdown valve. The damper seal air system adopts the one-to-one seal air mechanism, and each damper generates seal air by respective small fan, thereby having the advantages of convenient installation, short air flue, small system resistance, low pump lift of the fans, small flow rate and low noise, and being beneficial to saving energy and protecting the environment for the system.
Description
Technical field
The utility model relates to desulfurization flue gas pipeline baffle door sealing wind system, particularly, is the sealing wind system that the baffle door that fire coal boiler fume is provided with on the pipeline that feeds desulfurization purifier and purification back feeding chimney is carried out the flue gas sealing.
Background technology
The flue gas that coal-fired flue-gas, particularly coal-fired boiler in power plant produce need be imported the desulfurizer desulfurization, then the purification flue gas after the desulfurization is led to smoke stack emission.This flue gas pipeline system contains the flue gas house steward that an end links to each other with boiler induced-draft fan, the other end links to each other with chimney, house steward is provided with baffle door, be connected with the desulfurization smoke-intake pipe between house steward's baffle door entrance point and the desulfurizer import, be connected with the desulfurization pipe between house steward's the baffle door port of export and the desulfurizer outlet, desulfurization is respectively equipped with baffle door on smoke pipe.Can select flue gas is discharged behind desulfurizer by the keying of each baffle door being controlled the flow direction of flue gas, or directly discharging, the latter generally is used for the maintenance stage of desulfurizer.Each baffle door is realized opening or closing by baffle plate, and when baffle door was closed, the baffle plate sealing did not have and leaks.Generally the inlet side baffle plate of baffle door is applied blast, realize the flue gas blocking-up sealing of baffle door both sides by baffle plate sealing wind system.Traditional design is three shared cover sealing wind systems of baffle door, seal fan flow, lift, power, noise are all bigger, and blower fan generally can only be arranged in ground, take up an area of greatly, sealing wind transfer pipeline is long, and is many with the gas contact, leakage point is many, if there is a baffle plate to leak out, then whole pipeline pressure release, it is unreliable to move; In addition, electric heater capacity is big, resistance is big, and big flow blower fan and electric heater need long-time running, are unfavorable for energy-conservation.Therefore need a kind of flexible, easy for installation, energy-conserving and environment-protective, safe and reliable baffle door sealed energy-saving system of adjusting that be applicable to of design.
Summary of the invention
That the purpose of this utility model provides is easy for installation, adjust flexibly, energy-saving safe, reliable desulfurization flue gas pipeline baffle door sealing wind system, and it can overcome the above-mentioned shortcoming and defect of conventional seals wind system.
The baffle door sealing wind system of this desulfurization flue gas pipeline contains flue gas house steward, house steward's baffle door, desulfurization smoke-intake pipe, smoke-intake pipe baffle door, desulfurization pipe, pipe baffle door, each baffle door is provided with baffle plate, each baffle door links to each other with a seal fan structure by pipeline respectively, said seal fan structure comprises a typhoon machine at least, and blower fan is provided with the outlet shut-off valve.
Said seal fan structure contains the heater that links to each other with blower fan, and the heater two ends are provided with forward and backward shut-off valve and bypass shut-off valve.
Said each blower fan entrance point is provided with silencer, and the port of export is provided with outlet shut-off valve and outlet check (non-return) valve.
Each seal fan structure contains two in parallel typhoon machines, and operation during operate as normal, one are standby.
In the seal fan structure of said flue gas house steward baffle door, the fans entrance end is connected with the air intlet pipe simultaneously and from flue gas house steward's former flue gas pipeline, is respectively equipped with air shut off valve and former flue gas shut-off valve on two pipelines.This design can directly be quoted the former flue gas of high temperature and replace air as sealing wind when environment temperature be low, utilizes the heat of former cigarette to replace electric heater, thereby further reduces the energy consumption of Continuous Running Equipment.
The native system advantage is as follows:
1, each baffle door produces sealing wind respectively by separately blower fan, this " one to one " allocation plan, can adopt little blower fan, little heater to be directly installed on the flue top, take up an area of less, light weight, easy for installation, the air channel is short, and SR is little, the lift of blower fan is low, flow is little, noise is low, therefore is beneficial to the energy saving of system environmental protection;
2, every cover sealing system is provided with two seal fans, and the using and the reserved are chain each other, has improved the reliability of system greatly;
3, the unique design of the sealing of the baffle door on flue gas house steward wind system, it is very little to account for the total smoke treatment amount of desulfurization ratio at the total seal of tube wind of flue gas, the SO of sealing wind
2When concentration influences desulfuration efficiency hardly, can adopt former flue gas to replace air to seal house steward's baffle plate, needn't use heater, whole sealing system power consumption can reduce 50-75%;
4, opened up the variation route of a baffle door sealed energy-saving, system installs and adjusts flexibly, under the situation that does not increase investment, greatly reduces the power consumption of Continuous Running Equipment, and many-side has effectively been saved resource, has improved the reliability of system;
5, this sealing wind system is applicable to the sealing of wet desulphurization, dry method, semi-dry desulphurization baffle plate.
Description of drawings
Accompanying drawing is the many kiln gas desulphurization system structural representation that contains the peak regulation unit.
Each label is represented among the figure:
The seal fan structure of I-flue gas house steward baffle door, the seal fan structure of II-desulfurization smoke-intake pipe baffle door, the seal fan structure of III-desulfurization pipe baffle door; The 1-silencer, 2-seal fan, 3-seal fan outlet shut-off valve, 4-seal fan outlet check (non-return) valve, shut-off valve before the 5-heater by-pass shut-off valve, 6-heater, 7-heater, shut-off valve behind the 8-heater, 9-sealing air pipe road; 10-bypass air shut-off valve; The former flue gas shut-off valve of 11-; 12-flue gas house steward; 13-flue gas house steward baffle door; 14-desulfurization smoke-intake pipe, 15-desulfurization smoke-intake pipe baffle door; 16-desulfurization pipe, 17-desulfurization pipe baffle door; The 18-air-introduced machine; The 19-chimney; The 20-boiler; The 21-supercharger; The 22-heat exchanger; The 23-desulfuration absorbing tower; The former flue gas pipeline of 24-.
The specific embodiment
As shown in the figure, under the situation of desulfuration absorbing tower operate as normal, flue gas house steward 12 baffle door 13 is in closed condition, and cigarette baffle door 15 is advanced in desulfurization and smoke baffle door 17 all is in opening.The flue gas that boiler 20 produces feeds flue gas house steward 12 by air-introduced machine 18, enters desulfuration absorbing tower 23 by desulfurization smoke-intake pipe 14, baffle door 15 after supercharger 21 pressurizations, heat exchanger 22 coolings, is received and removes SO
2Flue gas from the absorption tower 23 cat head discharge, heat up by heat exchanger 22, through the baffle door 17 of desulfurization pipe 16, go into chimney 19 dischargings.When desulphurization system need be overhauled, cigarette baffle door 15 is advanced in desulfurization and smoke baffle door 17 is all closed, and house steward's cigarette baffle door 13 is opened, flue gas directly enters cigarette fontanel 19 by cigarette baffle door 13.Which kind of state no matter, pent baffle door must make the baffle plate sealing not have to sew, and this sealing realizes by going into pressure wind (promptly sealing wind) to a side-blown.
In the accompanying drawing three seal fan structure I, II, III respectively with 13,15, the 17 corresponding configurations of three baffle doors, each seal fan structure contains a heater and two seal fans 2 in parallel, operation during operate as normal, one are standby.Blower fan 2 is provided with outlet shut-off valve 3; Heater 7 two ends are provided with forward and backward shut-off valve 6,8 and bypass shut-off valve 5.When heater 7 maintenance, can shut-off valve 6 and 8, sealing wind passes through from bypass valve 5, and when environment temperature was suitable, the heater of also can stopping using drew sealing wind with energy-conservation from bypass.Each blower fan 2 entrance point is provided with silencer 1, and outlet is provided with check (non-return) valve 4.
In addition, among the seal fan structure I of flue gas house steward baffle door 13, blower fan 2 arrival ends are connected with the former flue gas pipeline 24 from flue gas house steward 12 simultaneously, and former flue gas pipeline 24 is provided with former flue gas shut-off valve 11, and are provided with air shut off valve 10 on the air intlet pipe.When environment temperature is low, can directly quote the former flue gas of high temperature and replace air as sealing wind, utilize the heat of former cigarette to replace electric heater, thereby further reduce the energy consumption of Continuous Running Equipment.
Claims (6)
1. the baffle door of desulfurization flue gas pipeline seals wind system, contain flue gas house steward, house steward's baffle door, desulfurization smoke-intake pipe, smoke-intake pipe baffle door, desulfurization pipe, pipe baffle door, each baffle door is provided with baffle plate, it is characterized in that each baffle door links to each other with a seal fan structure by pipeline respectively, said seal fan structure comprises a sealing wind blower fan at least, and blower fan is provided with the outlet shut-off valve.
2. the baffle door sealing wind system of desulfurization flue gas pipeline according to claim 1 is characterized in that said seal fan structure contains the heater that links to each other with blower fan, and the heater two ends are provided with forward and backward shut-off valve and bypass shut-off valve.
3. the baffle door sealing wind system of desulfurization flue gas pipeline according to claim 2 is characterized in that said each blower fan entrance point is provided with silencer.
4. the baffle door sealing wind system of desulfurization flue gas pipeline according to claim 3 is characterized in that the port of export is provided with outlet shut-off valve and outlet check (non-return) valve.
5. according to the baffle door sealing wind system of claim 1 or 2 or 3 or 4 described desulfurization flue gas pipelines, it is characterized in that each seal fan structure contains two typhoon machines in parallel.
6. the baffle door sealing wind system of desulfurization flue gas pipeline according to claim 5, it is characterized in that in the seal fan structure of said flue gas house steward baffle door, the fans entrance end is connected with the former flue gas pipeline from house steward simultaneously, and former flue gas pipeline is provided with former flue gas shut-off valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145274U CN201344550Y (en) | 2008-12-23 | 2008-12-23 | Damper seal air system of desulfurization flue gas pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202145274U CN201344550Y (en) | 2008-12-23 | 2008-12-23 | Damper seal air system of desulfurization flue gas pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201344550Y true CN201344550Y (en) | 2009-11-11 |
Family
ID=41276132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202145274U Expired - Lifetime CN201344550Y (en) | 2008-12-23 | 2008-12-23 | Damper seal air system of desulfurization flue gas pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201344550Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188895A (en) * | 2010-03-08 | 2011-09-21 | 华北电力科学研究院有限责任公司 | Method and system for sealing desulphurization fume baffle |
| CN102297440A (en) * | 2011-07-15 | 2011-12-28 | 江苏南自通华电站辅机有限公司 | Desulfurizing air door for utilizing waste heat in positive and negative pressure flue |
| CN103075212A (en) * | 2013-01-09 | 2013-05-01 | 傅宁芳 | Enclosed air steam heating system of desulfuration baffle gate |
| CN104930529A (en) * | 2015-06-24 | 2015-09-23 | 丁毅 | Partition door |
| CN106016322A (en) * | 2016-07-12 | 2016-10-12 | 中国神华能源股份有限公司 | Flue gas desulfurization equipment |
| CN115095992A (en) * | 2022-07-06 | 2022-09-23 | 华能大庆热电有限公司 | Sealed wind intelligent heating device of direct-fired pulverizing system |
-
2008
- 2008-12-23 CN CNU2008202145274U patent/CN201344550Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188895A (en) * | 2010-03-08 | 2011-09-21 | 华北电力科学研究院有限责任公司 | Method and system for sealing desulphurization fume baffle |
| CN102297440A (en) * | 2011-07-15 | 2011-12-28 | 江苏南自通华电站辅机有限公司 | Desulfurizing air door for utilizing waste heat in positive and negative pressure flue |
| CN103075212A (en) * | 2013-01-09 | 2013-05-01 | 傅宁芳 | Enclosed air steam heating system of desulfuration baffle gate |
| CN104930529A (en) * | 2015-06-24 | 2015-09-23 | 丁毅 | Partition door |
| CN106016322A (en) * | 2016-07-12 | 2016-10-12 | 中国神华能源股份有限公司 | Flue gas desulfurization equipment |
| CN106016322B (en) * | 2016-07-12 | 2018-05-15 | 中国神华能源股份有限公司 | flue gas desulfurization device |
| CN115095992A (en) * | 2022-07-06 | 2022-09-23 | 华能大庆热电有限公司 | Sealed wind intelligent heating device of direct-fired pulverizing system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201344550Y (en) | Damper seal air system of desulfurization flue gas pipeline | |
| CN201251371Y (en) | Flue gas pre-cooling system with highly-effective water and energy conservation | |
| CN102671538B (en) | Deep energy-saving system based on optimization of flue gas desulfurization and denitration technology | |
| CN202732012U (en) | Ventilation air methane oxidization power generation system | |
| CN202709159U (en) | Boiler capable of meeting full-load operation low exhaust temperature of selective catalytic reduction (SCR) denitration device | |
| CN203177151U (en) | Boiler flue gas waste heat recycling system with improved structure | |
| CN203375426U (en) | Boiler tail structure capable of preventing boiler low-temperature air preheater from low-temperature corrosion | |
| CN109404958A (en) | A kind of energy efficiency anti-blocking method and system based on air preheater bypass flue | |
| CN201764487U (en) | Automatic temperature controlling apparatus of low pressure coal economizer | |
| CN202762308U (en) | Deep energy-saving system based on flue gas desulfurization and denitrification process optimization | |
| CN202018186U (en) | System using boiler flue gas waste heat for drying brown coal | |
| CN202675257U (en) | Boiler flue gas afterheat recycling system | |
| CN202813337U (en) | Two-stage closed circulating boiler flue gas waste heat utilization system | |
| CN105674315A (en) | Double-circuit and double-circulation heat exchanging system | |
| CN201779676U (en) | Seal air system of desulfurized flue gas damper | |
| CN201819192U (en) | Two-stage serial-parallel boiler tail heat exchanger | |
| CN202692019U (en) | Flue gas waste heat recycling system of steam boiler | |
| CN201344553Y (en) | Water-borne type gas heat-exchanging device | |
| CN202056856U (en) | System for recycling afterheat of flue gas through high-temperature coal economizer | |
| CN107366897A (en) | A kind of Pollutant in Coal Burning Boiler emission reduction optimization collaboration fume afterheat deep exploitation system | |
| CN103808200A (en) | Automatic regulating system for controlling temperature of working media of heat exchanger | |
| CN202203970U (en) | Secondary energy saving and utilizing device for furnace exhaust gas waste heat | |
| CN207169428U (en) | SCR catalytic reactors | |
| CN203394808U (en) | Optimal configuration system for thermal power plant fans | |
| CN202328127U (en) | Smoke waste heat recycling device for coke oven |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20091111 |
|
| CX01 | Expiry of patent term |