CN201253546Y - Self-support type flue-gas denitration reactor - Google Patents
Self-support type flue-gas denitration reactor Download PDFInfo
- Publication number
- CN201253546Y CN201253546Y CNU200820163632XU CN200820163632U CN201253546Y CN 201253546 Y CN201253546 Y CN 201253546Y CN U200820163632X U CNU200820163632X U CN U200820163632XU CN 200820163632 U CN200820163632 U CN 200820163632U CN 201253546 Y CN201253546 Y CN 201253546Y
- Authority
- CN
- China
- Prior art keywords
- self
- flue gas
- reactor
- gas denitration
- catalyst
- 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 - Fee Related
Links
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The utility model discloses a self-supporting catalytic reduction flue gas denitration reactor. The prior reactor carries very big load, so the increased stress of a reactor member can be caused by uneven release, and the reactor can be destroyed when the stress value exceeds the permissible value of materials. The denitration reactor comprises a shell, supporting posts arranged on the shell, a supporting truss arranged in the shell, and catalysts. The denitration reactor is characterized in that the center of the bottom part of every side of the reactor is provided with a guiding device, and limit devices are arranged at the bottoms of the supporting posts. The utility model can reduce the stress caused by expansion to an ignored degree to meet the requirements of mechanical properties, and ensures the safe operation of the reactor.
Description
Technical field
The utility model relates to a kind of self-supporting catalytic reduction flue gas denitration reactor.
Background technology
Along with high speed development of national economy, construction becomes increasingly conspicuous with the contradiction of environmental protection, and under the major premise of developing the economy, the Chinese government has issued the decree and the measure of a series of minimizing environmental pollution.Reduce pollutant (sewage, SO
X, NO
XDeng) to be emitted under the present technical conditions be effective main means.SO
X, NO
XReduction of discharging will be the main emission reduction tasks of each big electricity power enterprise of China from now on.
The minimizing NO of China
XDischarging starts from 21 century, starts late, and application example is less so far.The method of at present general denitration has SNCR (non-selective catalytic reduction) method, SCR (SCR) method, laser method etc., SCR (SCR) method denitration technology be widely used in the world at present, the denitration technology of technology maturation, account for nearly 90% share, characteristics are safe and reliable to operation, denitration efficiency height (can reach more than 90%), no byproduct does not produce secondary pollution, and is simple to operate.Reactor status in SCR method denitrification apparatus is of crucial importance, is the heart in the whole device, and the success or failure of DESIGN OF REACTOR, manufacturing have often determined the performance success or not of denitrating system.Reactor is made up of steel construction in the SCR method denitrification apparatus, the general work environment after 250 ℃～400 ℃ boiler combustions in the flue gas, external insulation, load capacity is generally greater than 300 tons, maximum can reach 1000 tons, the installation site often is above the ground level 30 meters; Need consider also during design that antiseismic effect, wind resistance carry the factor of external force effects such as active force and free wxpansion at high temperature.Because the working environment of reactor is under the hot conditions, and carry great load, should consider the release of bulk expansion power during design, increase if discharge stress inhomogeneous then the device member that can induce reaction, if stress value surpasses the allowable stress of material, reactor will be destroyed.
The utility model content
Technical problem to be solved in the utility model provides a kind of self-supporting flue gas denitration reactor, it is provided with guider and stopping means at reactor bottom, it will reduce to negligible degree because of the stress that expansion causes, to reach and to satisfy the requirement of mechanical property, guarantee the reactor safe operation.
For this reason, the utility model adopts following technical scheme: the self-supporting flue gas denitration reactor, the supporting frame and the catalyst that comprise housing, be installed in the support column on the housing and be positioned at housing, the bottom centre place that it is characterized in that each side of reactor is provided with guider, and the bottom of support column is provided with stopping means.Guider is used to control reactor two unidirectional displacements on horizontal plane, makes the stress that causes because of expansion reduce to negligible degree.Stopping means is in order to guarantee the uncrossed while of thermal expansion, can also to transmit load, resist the effect of external horizontal force, preventing the possibility that toppling appears in reactor.
As the further of technique scheme improved and replenish, the utility model is taked following technical measures:
Above-mentioned self-supporting flue gas denitration reactor, guider comprises last block that is installed in reactor bottom and the following block that lays respectively at the block both sides, the upper surface of following block is higher than the lower surface of block, there is the expansion clearance between the upper and lower link stopper, the each several part of reactor is evenly expanded along all directions, and the swell increment that guider is projected in the Expansion Center point on the reactor support level face is zero.
Above-mentioned self-supporting flue gas denitration reactor, stopping means comprise the low-resistance sliding panel that is installed in the support column bottom, and the side of support column bottom is provided with limited block; Described limited block is L-shaped, and respectively there are two limited blocks the both sides of support column bottom.The low-resistance sliding panel is in order to slip, and the application limited block stops the generation of toppling.
Above-mentioned self-supporting flue gas denitration reactor is provided with elastic sealing element between the adjacent catalyst.Reactor is operated in the flue gas behind the power boiler burning, and flue gas carries volume of smoke, and deposit buildup easily in reactor causes catalyst performance to descend, and increases SR, influences the power generation performance of unit.The utility model prevents local dust stratification by elastic sealing element.
Above-mentioned self-supporting flue gas denitration reactor, catalyst is installed on the catalyst brace summer, be provided with the seal diaphragm that is sealed and matched with the catalyst bottom between the adjacent catalyst brace summer, prevent local dust stratification, seal diaphragm is installed on the girder that is positioned at catalyst brace summer below, and the distribution arrangement of the distribution arrangement of girder and catalyst brace summer is perpendicular.The catalyst brace summer has disturbing influence to flue gas, thereby plays the effect of regulating the flue gas flow field uniformity.It is convenient that said structure is changed catalyst, is fit to all kinds of catalyst and uses.
Above-mentioned self-supporting flue gas denitration reactor, seal diaphragm are " U " shape, and sealing effectiveness is better.
Above-mentioned self-supporting flue gas denitration reactor, ash retention equipment is equipped with in the bottom of girder, avoids cigarette ash to enter in the girder, also plays the effect of regulating the flue gas flow field uniformity; Soot blower is housed on the supporting frame, utilizes soot blower to play the effect of automatic ash removing.
The utlity model has following beneficial effect: the swell increment of the Expansion Center point on the reactor support level face is zero, makes the stress that causes because of expansion reduce to negligible degree, prevents that toppling from appearring in reactor, has guaranteed the reactor safe operation; The energy automatic ash removing adapts to all kinds of catalyst of using at present and exchanges, and can regulate the flue gas flow field uniformity.
Below in conjunction with specification drawings and specific embodiments the utility model is further described.
Description of drawings
Fig. 1 is a structural representation of the present utility model.
Fig. 2 is the structural representation of the utility model guider.
Fig. 3 is the structural representation of the utility model stopping means.
Fig. 4 is that the e-e of Fig. 3 is to cutaway view.
Fig. 5 is the structural representation at the utility model catalyst place.
Fig. 6 is the partial structurtes schematic diagram of Fig. 5.
The specific embodiment
Self-supporting flue gas denitration reactor shown in Fig. 1-6 is equipped with support column 1 on the housing, supporting frame and catalyst 2 are arranged in the housing, and supporting frame comprises catalyst brace summer 7 and girder 9.The bottom centre place of each side of reactor respectively is provided with a guider 3, described guider 3 is made of last block 31 that is installed in reactor bottom and the following block 32 that lays respectively at the block both sides, the upper surface of following block 32 is higher than the lower surface of block 31, has the expansion clearance between the upper and lower link stopper.The bottom of support column 1 is provided with stopping means, and stopping means is made of low-resistance sliding panel 4 that is installed in support column bottom and the limited block 5 that is located at each place, side, support column bottom, and described limited block 5 is L-shaped.During installation, following link stopper 32, limited block 5 are fixed on the basis that is used to install reactor.
Be provided with elastic sealing element 6 between the adjacent catalyst 2, catalyst 2 is installed on the catalyst brace summer 7, be provided with the seal diaphragm 8 that is sealed and matched with catalyst 2 bottoms between the adjacent catalyst brace summer 7, seal diaphragm 8 is " U " shape, it is installed on the girder 9 that is positioned at catalyst brace summer 7 belows, and the distribution arrangement of the distribution arrangement of girder 9 and catalyst brace summer 7 is perpendicular.Ash retention equipment 10 is equipped with in the bottom of girder 9, and the soot blower (not shown) is housed on the supporting frame.
The above only is preferred embodiment of the present utility model, is not structure of the present utility model is done any pro forma restriction.Every foundation technical spirit of the present utility model all falls in the protection domain of the present utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (8)
1, self-supporting flue gas denitration reactor, the supporting frame and the catalyst (2) that comprise housing, be installed in the support column (1) on the housing and be positioned at housing, the bottom centre place that it is characterized in that each side of reactor is provided with guider (3), and the bottom of support column (1) is provided with stopping means.
2, self-supporting flue gas denitration reactor according to claim 1, it is characterized in that described guider (3) comprises last block (31) that is installed in reactor bottom and the following block (32) that lays respectively at the block both sides, the upper surface of following block (32) is higher than the lower surface of block (31), has the expansion clearance between the upper and lower link stopper.
3, self-supporting flue gas denitration reactor according to claim 1 and 2 is characterized in that described stopping means comprises the low-resistance sliding panel (4) that is installed in the support column bottom, and the side of support column bottom is provided with limited block (5).
4, self-supporting flue gas denitration reactor according to claim 3 is characterized in that described limited block (5) is L-shaped, and respectively there are two limited blocks (5) both sides of support column bottom.
5, self-supporting flue gas denitration reactor according to claim 1 is characterized in that being provided with between the adjacent catalyst (2) elastic sealing element (6).
6, self-supporting flue gas denitration reactor according to claim 1 or 5, it is characterized in that catalyst (2) is installed on the catalyst brace summer (7), be provided with the seal diaphragm (8) that is sealed and matched with the catalyst bottom between the adjacent catalyst brace summer (7), seal diaphragm (8) is installed on the girder (9) that is positioned at catalyst brace summer below, and the distribution arrangement of the distribution arrangement of girder (9) and catalyst brace summer (7) is perpendicular.
7, self-supporting flue gas denitration reactor according to claim 6 is characterized in that described seal diaphragm (8) is " U " shape.
8, self-supporting flue gas denitration reactor according to claim 6 is characterized in that ash retention equipment (10) is equipped with in the bottom of girder (9), and soot blower is housed on the supporting frame.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820163632XU CN201253546Y (en) | 2008-09-01 | 2008-09-01 | Self-support type flue-gas denitration reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU200820163632XU CN201253546Y (en) | 2008-09-01 | 2008-09-01 | Self-support type flue-gas denitration reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201253546Y true CN201253546Y (en) | 2009-06-10 |
Family
ID=40736858
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU200820163632XU Expired - Fee Related CN201253546Y (en) | 2008-09-01 | 2008-09-01 | Self-support type flue-gas denitration reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201253546Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905557A (en) * | 2018-08-09 | 2018-11-30 | 合肥五凡工程设计有限公司 | A kind of catalyst carrier arrangement and its working method with soot blowing function |
-
2008
- 2008-09-01 CN CNU200820163632XU patent/CN201253546Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108905557A (en) * | 2018-08-09 | 2018-11-30 | 合肥五凡工程设计有限公司 | A kind of catalyst carrier arrangement and its working method with soot blowing function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205216584U (en) | SCR (selective catalytic reduction) denitration device | |
| Gu et al. | Overall review of peak shaving for coal-fired power units in China | |
| CN201253546Y (en) | Self-support type flue-gas denitration reactor | |
| CN203170223U (en) | Common wall structure of reactor and flue gas inlet pipeline in flue gas denitration system | |
| CN206082181U (en) | Flue gas system of flow equalizing of low temperature SCR flue gas denitration reactor | |
| CN202715356U (en) | Low temperature selective catalytic reduction (SCR) static bed flue gas denitration device of horizontal type heat recovery boiler | |
| CN203603543U (en) | Coal conveying system | |
| CN204051431U (en) | A kind of denitrification apparatus | |
| CN110701631A (en) | System and method for relieving blockage of air preheater through catalytic oxidation of escaped ammonia | |
| CN211345371U (en) | System for escape ammonia catalytic oxidation alleviates air preheater and blocks up | |
| CN103170244B (en) | The common wall construction in reactor and smoke-intake pipe road in flue gas denitrification system | |
| CN208720255U (en) | A kind of side lifting construction system suitable for fluoroplastics flue gas heat-exchange unit | |
| CN211659716U (en) | Steel structure supporting device of waste incineration flue gas purification system | |
| CN205859979U (en) | A kind of sliding bottom for the low low-level (stack-gas) economizer of power plant coal-burning boiler | |
| CN213803428U (en) | Sludge treatment all-in-one machine equipment foundation | |
| CN212309232U (en) | Flue gas emission control and recycling system of coal-fired power plant | |
| CN211041010U (en) | Device for transferring fly ash in ash hopper of economizer | |
| CN215822785U (en) | Horizontal reactor for natural gas distributed energy flue gas denitration | |
| CN107376642B (en) | SCR method flue gas denitration reactor | |
| CN209317443U (en) | A kind of trapezoidal SCR reactor assembly equipped with ladder rectifier | |
| CN209530539U (en) | A kind of gas internal-combustion engine distributed energy SCR denitration system | |
| CN217301422U (en) | Anti-vibration treatment structure of high-speed heavy-load equipment for high-rise platform | |
| CN209155539U (en) | The full load denitrating system of ozone oxidation collaboration SCR in a kind of power station | |
| CN102527234B (en) | Selective catalytic reduction device for flue gas denitrification and application method thereof | |
| CN213807863U (en) | Flue gas flow guiding device of gas and steam combined cycle power generation waste heat boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090610 Termination date: 20110901 |