CN204034560U - A kind of Integral suspension type SCR denitration reactor - Google Patents
A kind of Integral suspension type SCR denitration reactor Download PDFInfo
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- CN204034560U CN204034560U CN201420415728.6U CN201420415728U CN204034560U CN 204034560 U CN204034560 U CN 204034560U CN 201420415728 U CN201420415728 U CN 201420415728U CN 204034560 U CN204034560 U CN 204034560U
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Abstract
The utility model discloses a kind of Integral suspension type SCR denitration reactor, comprise reactor, SCR steelframe, reactor head is reactor end face beam, SCR steelframe top is SCR steelframe end face beam, it is characterized in that, described reactor is suspended on SCR steelframe end face beam by suspension rod, described suspension rod one end is connected with SCR steelframe end face beam, and the described suspension rod other end is connected with reactor end face beam.Compared with the existing technology, its advantage is, reactor monolith is suspended on SCR steelframe end face beam by the utility model, makes reactor member stress based on tension, and SCR reactor monolith steel using amount reduces; Integrated suspension arranges reactor damping, effect of energy dissipation is obvious; The reactor monolith height comparatively end, reactor is facilitated to arrange.
Description
Technical field
The utility model relates to a kind of SCR denitration reactor, especially a kind of Integral suspension type SCR denitration reactor.
Background technology
It is the peak period of domestic coal fired power plant denitration engineering construction during " 12 ".Current SCR (SCR) method applies maximum, technology is the most ripe a kind of gas denitrifying technologies in the world.In the art, reactor is the core component of SCR device, be to provide NOX and NH3 in flue gas on catalyst surface, generate the place of N2 and H2O, its major function is bearing catalyst, for denitration reaction provides space, ensure the even of the smooth and easy of flow of flue gas and air flow method, be creating conditions smoothly of denitration reaction simultaneously.
In industrial waste gas harnessing project, catalytic reactor mainly contains fixed bed and fluid bed two kinds, current extensive use be fixed bed reactors, Benitration reactor is the one of fixed bed reactors.Hydrogen-catalyst reactor arrangement form has horizontal and vertical air-flow two kinds of forms, and because dustiness in flue gas is very high, domestic and international SCR reactor generally adopts uprush mode.
In the Benitration reactor design of uprush mode, be generally divided into self-supporting and suspension type two kinds at present according to support style.And self-supporting reactor is divided into four supporting leg Benitration reactors and branched leg Benitration reactor, suspension type reactor divides again suspension and the form such as corresponding single supporting leg and branched leg in the middle part of the suspension of reactor inlet place, reactor.
Four supporting leg self-supporting Benitration reactor force modes self bear the load such as catalyst, cigarette pressure and it only shakes vibrational power flow bottom reactor body, four supporting leg sliding supports are located on its lower SCR steel framework beam, because its housing self-strength is larger, this kind of falling film reactor self steel using amount economy is more weak, but this kind of falling film reactor effectively can reduce support with denitration steel structure steel using amount (steel structure support need not be lifted to reactor head and be delivered to load bending moment on its lower girder steel less).
Reactor load is delivered on its lower steel structure support beam by many supporting legs by branched leg self-supporting reactor, reactor only rolling structure is generally arranged on reactor body top, this kind of reactor strengthens the vertical reinforcing rib of housing (or post) effect, the relative four supporting leg reactor less expensives of reactor steel using amount, but because only shaking vibrational power flow on reactor top and supporting leg load is similar to evenly load is delivered on its lower steel-frame beam, the steel structure support consumptive material of this kind of falling film reactor is comparatively wasted.
Suspension type reactor is mainly divided into suspension and reactor head in the middle part of reactor to hang two kinds of forms.It calculates thinking and derives from Flue duct design, this kind of reactor improves reactor shell stress performance, reactor shell is made to be main changing into mainly based on stretch bending by the bending stress of self-supporting, but this kind of reactor is because seat supports point is all on reactor top, relative response device steel structure support only rolling structure is comparatively strong in its economy of self-supporting Benitration reactor of reactor bottom, but support with denitration steel structure is relatively wasted.
In above Benitration reactor Design Mode, reactor stiffness by itself is all larger, and consumptive material is all many, and the good examining tensile behavior of reactor steel structure member does not all obtain best performance and utilizes.Geological process between reactor and SCR steel bracket is not all offset preferably.Reactor self steel using amount is all higher.
In current reactor pattern, no matter be self-supporting Benitration reactor or suspension type Benitration reactor, the support with denitration steel structure component supporting reactor is subject to the effect of reactor suspension column horizontal force always, based on the drawback of current Structure Design Software, in SCR steel structure support calculates, need consider that the Disadvantageous combination of various load carries out local and overall calculation and design because software calculates automatically, not only beam cross section, SCR steel structure support local will be caused larger, SCR steel structure support entirety also can be subject to horizontal loads that reactor transmits and the mutual geological process between reactor and steel bracket, and SCR steel structure support is mostly highly at about 50 meters, its steel using amount affects greatly by horizontal force, when not needing cap structure to arrange to Benitration reactor, even conventional self-supporting Benitration reactor and suspension type Benitration reactor are suitable for SCR steel structure support, if but when northern frore area needs denitration closed seal or when needing reactor that framework top cover is set, use self-supporting Benitration reactor or suspension type Benitration reactor again, then reactor self steel using amount is uneconomical, also not too (steel using amount is higher) is applicable to SCR steel structure support.
Utility model content
In order to solve above-mentioned the problems of the prior art, the purpose of this utility model is to provide and a kind ofly can gives full play to the strong feature of steel structure member examining tensile behavior, reduces reactor steel using amount, improve the object of shock-proof effect to reach.It has used for reference the connected mode between heat power plant boiler steelframe and boiler, and combines with Benitration reactor and denitration SCR steelframe on this basis, for Benitration reactor design provides a kind of new-type integrated suspension Benitration reactor structural design pattern.
In order to achieve the above object, the technical solution of the utility model realizes as follows:
A kind of Integral suspension type SCR denitration reactor, comprise reactor, SCR steelframe, reactor head is reactor end face beam, SCR steelframe top is SCR steelframe end face beam, it is characterized in that, described reactor is suspended on SCR framework girder steel by suspension rod, described suspension rod one end is connected with SCR steelframe end face beam, and the described suspension rod other end is connected with reactor end face beam.
Described suspension rod quantity is at least 3, and the pin joint of described suspension rod on reactor end face beam is uneven on same straight line.
Described suspension rod and be hinged between reactor end face beam and SCR steelframe end face beam.
The pin joint of described suspension rod and reactor end face beam is uniformly distributed on reactor end face beam.
Perpendicular setting between described suspension rod and reactor end face beam.
Described suspension rod is divided into top suspension rod and bottom suspension rod to arrange, and is interconnected between described top suspension rod and bottom suspension rod.
Hinged between described top suspension rod and bottom suspension rod.
Described reactor comprises, reactor shell, reactor shell top is provided with reactor end face beam and connects, reactor shell top is connected with gas approach, be connected with reactor outlet flue bottom reactor shell, reactor shell internal upper part is fairing brace summer, the interior middle part of reactor shell is catalyst support beam, catalyst support beam is connected with fairing brace summer by inside reactor suspension rod, and fairing brace summer is connected with reactor end face beam by inside reactor suspension rod.
Described reactor also comprises the spacing bearing in top and lower limit bearing, and the spacing bearing settlement in described top is near gas approach, and described lower limit bearing settlement is near exhaust pass.
The spacing bearing in described top is connected with SCR steelframe with lower limit bearing one end, one end adjacent with reactor and and there is certain interval between reactor, the displacement of reactor level direction is limited in interstice coverage.
After adopting technique scheme, reactor monolith suspention processes by the utility model, and by stressed for the reactor internal components vertical force be transformed on reactor suspension rod, thus significantly can save steel.Reactor steel using amount obviously reduces, and reactor shock-absorbing, effect of energy dissipation is obvious.Overcome reactor steel using amount in prior art large, the shortcoming of shock-proof effect difference.
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is a kind of integrated suspension SCR denitration of the utility model reactor schematic diagram.
Fig. 2 is the top view of reactor end face beam in a kind of integrated suspension SCR denitration of the utility model reactor.
SCR steelframe 100, reactor 200, suspension rod 300, SCR steelframe end face beam 101, reactor end face beam 201, reactor shell 202, reactor inlet flue 203, reactor outlet flue 204, the spacing bearing 205 in top, lower limit bearing 206, catalyst support beam 207, fairing brace summer 208, inside reactor suspension rod 209, top suspension rod 301, bottom suspension rod 302, pin joint 303, pin joint 304, pin joint 305
Detailed description of the invention
Analysis reactor stressing conditions, the flue gas pressures that inside reactor is subject to is roughly 5.8KPa, design temperature is generally 400 ~ 4500C, reactor body also needs the load of consideration three layers of catalyst (indivedual reactor is two-layer or four layers), conventional support beam makes brace summer become bending component because bearing catalyst load, reactor shell also makes housing member become stretch bending component because of the load bearing brace summer and transmit, flue gas pressures and seismic force then make reactor bear certain bending moment, it is larger that conventional reactor force modes makes reactor component bear bending moment, thus the drawback making reactor member section comparatively large and cause steel using amount larger.
As shown in Fig. 1 and Tu, a kind of Integral suspension type SCR denitration of the utility model reactor, comprise reactor 200, SCR steelframe 100, reactor head is reactor end face beam 201, SCR steelframe top is SCR steelframe end face beam 101, it is characterized in that, described reactor 200 is suspended on SCR framework girder steel by suspension rod 300, and described suspension rod 300 one end is connected with SCR steelframe end face beam 201, and described suspension rod 300 other end is connected 201 with reactor end face beam.
Its object is to, the utility model is by the process of reactor 200 integrated suspension, and by the reactor internal components mainly stressed vertical force be transformed on reactor suspension rod 300, utilize the feature that steel construction examining tensile behavior is strong, suspension rod 300 is utilized to conduct to SCR steelframe 100 by the load of reactor by pulling force, reduce reactor to the active force of SCR steelframe horizontal direction, thus steel can be saved in a large number.Also improve reactor shock-proof effect simultaneously.Suspension rod has good damping and energy dissipating effect, and by suspension rod, SCR steelframe only bears reactor because of earthquake and produces Vertical Earthquake Loads, and horizontal earthquake action is then consumed substantially by suspension rod.
A kind of Integral suspension type SCR denitration of the utility model reactor, described suspension rod 300 quantity is at least 3, and pin joint 304 inequality of described suspension rod 300 on reactor end face beam 201 is on same straight line.
Arrange the object that suspension rod number is no less than 3 to be, due to three not point on the same line determine a plane, so at least need to arrange 3 suspension rods, and the tie point of suspension rod and reactor end face beam 201 is not on the same line, so just can ensure the relatively fixing of reactor 200 position, avoid rocking.Therefore adopt described suspension rod 300 quantity to be at least 3, and the pin joint 304 inequality scheme on same straight line of described suspension rod 300 on reactor end face beam 201.
A kind of Integral suspension type SCR denitration of the utility model reactor, described suspension rod 300 and be hinged between reactor end face beam 201 and SCR steelframe end face beam 101.
Its object is to, for reducing the horizontal force of reactor 200 pairs of SCR steelframe 100 entirety further, reactor end face beam 201 and SCR steelframe end face beam 101 adopt articulated manner, like this, reactor 200 load only transmits vertical load to SCR steelframe end face beam 101, reactor load is vertically passed to SCR steelframe by SCR steelframe end face beam 101, pin joint can adopt bolt-type articulated manner, and the latch direction on suspension rod should be tried one's best vertical with the effect reaching the horizontal both direction horizontal force that deflate Benitration reactor transmits.
As Fig. 2, a kind of Integral suspension type SCR denitration of the utility model reactor, the pin joint 304 of described suspension rod and reactor end face beam 201 is uniformly distributed on reactor end face beam 201.
Its object is to, be uniformly distributed and pin joint 304 is set, the stressed close of each pin joint 304 can be made.In order to make reactor end face beam 201 and suspension rod 300 each several part uniform force, therefore the pin joint 304 on reactor end face beam 201 is evenly arranged on reactor end face beam 201.Be conducive to reactor 200 long-term stability to run.
A kind of Integral suspension type SCR denitration of the utility model reactor, perpendicular setting between described suspension rod 300 and reactor end face beam 201.
Described suspension rod 300 also can be arranged at an angle with adopting vertical setting between reactor 200.But consider that suspension rod 300 holding capacity is minimum when vertically arranging, and when vertically arranging the power of the vertical direction that reactor 200 only transmits to SCR steelframe end face beam 101.And when suspension rod 300 is arranged with reactor end face beam 201 is in a certain angle, suspension rod 300 also needs the separation of bearing a part of horizontal direction, the power of bearing along suspension rod direction entirety can increase, just need overstriking suspension rod 300, be unfavorable for province's steel, and reactor 200 can increase to SCR steelframe end face beam transmission horizontal direction power, is unfavorable for stable reactor 200 steady operation.Therefore vertically disposed scheme between the preferred suspension rod of the utility model 300 and reactor end face beam 201.
A kind of Integral suspension type SCR denitration of the utility model reactor, described suspension rod 300 is divided into top suspension rod 301 and bottom suspension rod 302 to arrange, and is interconnected between described top suspension rod 301 and bottom suspension rod 302.
Its object is to, described suspension rod 300 points of two parts are arranged, and can increase shock-proof effect further, increase stability, can adopt multiple connected mode between top suspension rod 301 and bottom suspension rod 302, as welded, linking up with, be threaded, hinged etc.
A kind of Integral suspension type SCR denitration of the utility model reactor, hinged between described top suspension rod 301 and bottom suspension rod 302.
Adopt hinged advantage to be, the hinged conduction that farthest can reduce horizontal direction power, the load further reducing reactor 200 horizontal direction transmits to SCR steelframe end face beam 101.With when reactor shakes, reduce the amplitude of rocking, be conducive to the safe and stable operation of reactor.
A kind of Integral suspension type SCR denitration of the utility model reactor, described reactor 200 comprises, reactor shell 202, reactor shell 202 top is provided with reactor end face beam 201 and connects, reactor shell 202 top is connected with gas approach 203, be connected with reactor outlet flue 204 bottom reactor shell 202, reactor shell 202 internal upper part is fairing brace summer 208, in reactor shell, middle part is catalyst support beam 207, catalyst support beam 207 is connected with fairing brace summer 208 by inside reactor suspension rod 209, fairing brace summer 208 is connected with reactor end face beam 201 by inside reactor suspension rod 209.
Its object is to, inside reactor catalyst support beam 207 is because of larger by catalyst load, brace summer member section is also larger, for reducing catalyst support beam 207 member section thus indirectly reducing reactor floor height, inside reactor suspension rod 209 is set at inside reactor, catalyst load is delivered on inside reactor suspension rod 209.Because inside reactor suspension rod 209 is tensional element, after adopting inside reactor suspension rod 209 to adopt structure, catalyst in reactor brace summer 207 depth of section can significantly reduce, it is also less that reactor brace summer 207 transmits load to reactor shell 202, SCR steelframe end face beam 101 bears all Benitration reactor vertical loads, like this, SCR steelframe 100 is compared horizontal force suffered by conventional design and is greatly reduced, the reduction of SCR steelframe steel using amount certain amplitude.Passed by inside reactor suspension rod 209 because catalyst in reactor module load (in reactor maximum technique load) is main, the housing wallboard of reactor shell 202 is based on tension, and its steel using amount obviously reduces.
A kind of Integral suspension type SCR denitration of the utility model reactor, described reactor 200 also comprises the spacing bearing 205 in top and lower limit bearing 206, the spacing bearing 205 in described top is arranged near gas approach, and described lower limit bearing 206 is arranged near exhaust pass.
Its object is to, the utility model adopts overhung construction, reactor 200 experience cigarette pressure and geological process time will produce swing, for preventing reactor 200 swing of occurring by the horizontal force that cigarette is pressed and earthquake produces, the utility model is considered to arrange at reactor inlet flue place the spacing bearing in top 205 and reactor outlet flue place and is arranged the spacing bearing 206 in top and carry out only rolling.SCR steelframe 100 entirety is only by the Benitration reactor horizontal loading of spacing bearing 205,206, and to mini-reactor, spacing bearing only can arrange one deck.
A kind of Integral suspension type SCR denitration of the utility model reactor, the spacing bearing 205 in described top is connected with SCR steelframe 100 with lower limit bearing 206 one end, one end adjacent with reactor 200 and and there is certain interval between reactor 200, the displacement of reactor 200 horizontal direction is limited in interstice coverage.
Its object is to, normal work timing position bearing need keep certain interval with reactor, guarantee that reactor 200 does not contact with spacing bearing 205,206, thus ensure that the load of the horizontal direction of reactor 200 is consumed by suspension rod 300 as much as possible, and do not pass to SCR steelframe, if although spacing bearing 205,206 and reactor 200 contact to arrange can play spacing effect of only shaking, but the horizontal direction load of reactor 200 can all pass to SCR steelframe 100 by spacing bearing 205,206, and losing design will achieve the goal.Therefore spacing bearing 205,206 needs to keep certain interval between reactor, makes reactor 200 can rock in interstice coverage.Simultaneously when shaking amplitude is greater than gap, spacing bearing 205,206 can play position-limiting action again, ensures that reactor shaking amplitude is not excessive, avoids occurring potential safety hazard.
Embodiment
When adopting this utility model technology, SCR steelframe 100 need be set to the form of SCR steelframe end face beam 101.Reactor 200 is suspended on SCR steelframe end face beam 101 by suspension rod 300.Suspension rod 300 arranges and needs binding reactor 200 sectional dimension and SCR steelframe end face beam to arrange form to determine, top suspension rod 301 and lower bottom suspension rod suspension rod 302 occur in pairs, suspension rod 300 should be arranged on the reactor end face beam 201 above denitration reactor inlet flue 203, and bottom suspension rod 302 is articulated with on reactor end face beam 201.And suspension rod 300 need be arranged symmetrically and evenly, suspension rod 300 setting space can be about 2 ~ 3m.Top suspension rod 301 is corresponding with bottom suspension rod 302 to be arranged, and suspension rod 301 is articulated with on SCR steelframe end face beam 101 symmetrically, is articulated and connected between top suspension rod 301 and bottom suspension rod 302.For small-sized Benitration reactor, top suspension rod 301 and bottom suspension rod 302 can taper to a suspension rod and to be articulated and connected respectively reactor 200 and SCR steelframe end face beam 101.Pin joint 303,304,305 can adopt bolt-type articulated manner, and latch direction should try one's best vertical and suspension rod with the effect of the horizontal both direction horizontal force reaching deflate Benitration reactor and transmit.
Embodiment in above-described embodiment can combine further or replace; and embodiment is only be described preferred embodiment of the present utility model; not design of the present utility model and scope are limited; under the prerequisite not departing from the utility model design philosophy; the various changes and modifications that in this area, professional and technical personnel makes the technical solution of the utility model, all belong to protection domain of the present utility model.
Claims (10)
1. an Integral suspension type SCR denitration reactor, comprise reactor, SCR steelframe, reactor head is reactor end face beam, SCR steelframe top is SCR steelframe end face beam, it is characterized in that, described reactor is suspended on SCR steelframe end face beam by suspension rod, described suspension rod one end is connected with SCR steelframe end face beam, and the described suspension rod other end is connected with reactor end face beam.
2. a kind of Integral suspension type SCR denitration reactor according to claim 1, it is characterized in that, described suspension rod quantity is at least 3, and the pin joint of described suspension rod on reactor end face beam is uneven on same straight line.
3. a kind of Integral suspension type SCR denitration reactor according to claim 1 or 2, is characterized in that, described suspension rod and be hinged between reactor end face beam and SCR steelframe end face beam.
4. a kind of Integral suspension type SCR denitration reactor according to claim 3, it is characterized in that, the pin joint of described suspension rod and reactor end face beam is uniformly distributed on reactor end face beam.
5. a kind of Integral suspension type SCR denitration reactor according to claim 4, is characterized in that, perpendicular setting between described suspension rod and reactor end face beam.
6. a kind of Integral suspension type SCR denitration reactor according to claim 3, is characterized in that, described suspension rod is divided into top suspension rod and bottom suspension rod to arrange, and is interconnected between described top suspension rod and bottom suspension rod.
7. a kind of Integral suspension type SCR denitration reactor according to claim 6, is characterized in that, hinged between described top suspension rod and bottom suspension rod.
8. a kind of Integral suspension type SCR denitration reactor according to claim 3, it is characterized in that, described reactor comprises, reactor shell, reactor shell top is provided with reactor end face beam and connects, reactor shell top is connected with gas approach, be connected with reactor outlet flue bottom reactor shell, reactor shell internal upper part is fairing brace summer, in reactor shell, middle part is multiple catalyst support beams, connected by inside reactor suspension rod between catalyst support beam, the superiors' catalyst support beam is connected with fairing brace summer by inside reactor suspension rod, fairing brace summer is connected with reactor end face beam by inside reactor suspension rod.
9. a kind of Integral suspension type SCR denitration reactor according to claim 8, it is characterized in that, described reactor also comprises the spacing bearing in top and lower limit bearing, and the spacing bearing settlement in described top is near gas approach, and described lower limit bearing settlement is near exhaust pass.
10. a kind of Integral suspension type SCR denitration reactor according to claim 9, it is characterized in that, the spacing bearing in described top is connected with SCR steelframe with lower limit bearing one end, one end and reactor press close to and and there is certain interval between reactor, the displacement of reactor level direction is limited in interstice coverage.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420415728.6U CN204034560U (en) | 2014-07-25 | 2014-07-25 | A kind of Integral suspension type SCR denitration reactor |
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| CN201420415728.6U CN204034560U (en) | 2014-07-25 | 2014-07-25 | A kind of Integral suspension type SCR denitration reactor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413224A (en) * | 2018-04-14 | 2018-08-17 | 邯郸钢铁集团设计院有限公司 | Support the suspended steel structure platform of bucket machine |
| CN109224838A (en) * | 2018-09-21 | 2019-01-18 | 大唐环境产业集团股份有限公司 | A kind of gas approach English truss suspension type Benitration reactor device |
-
2014
- 2014-07-25 CN CN201420415728.6U patent/CN204034560U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413224A (en) * | 2018-04-14 | 2018-08-17 | 邯郸钢铁集团设计院有限公司 | Support the suspended steel structure platform of bucket machine |
| CN108413224B (en) * | 2018-04-14 | 2024-03-22 | 河北大河邯钢设计院有限公司 | Suspension type steel structure platform for supporting chain bucket machine |
| CN109224838A (en) * | 2018-09-21 | 2019-01-18 | 大唐环境产业集团股份有限公司 | A kind of gas approach English truss suspension type Benitration reactor device |
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Address after: 100097 Beijing City, Haidian District Zizhuyuan 120 Patentee after: DATANG ENVIRONMENT INDUSTRY GROUP CO., LTD. Address before: 100097 Beijing City, Haidian District Zizhuyuan 120 Patentee before: Datang scientific and technological industry Group Co.,Ltd |