CN1765480A - Block assembled type sediment incrustation basket - Google Patents
Block assembled type sediment incrustation basket Download PDFInfo
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- CN1765480A CN1765480A CN 200510069872 CN200510069872A CN1765480A CN 1765480 A CN1765480 A CN 1765480A CN 200510069872 CN200510069872 CN 200510069872 CN 200510069872 A CN200510069872 A CN 200510069872A CN 1765480 A CN1765480 A CN 1765480A
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- screen assembly
- incrustation
- basket
- gripper shoe
- outer screen
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Abstract
The invention discloses a blocked modular accumulated filth basket. It divides the support plate at the inner section of reactor into several bar plates, while each bar plate has several accumulated filth element; the support plates with accumulated filth elements are assembled in the reactor to the blocked modular accumulated filth basket; wherein, the accumulated filth element comprises a guide-flow plate, a inner screen component, a outer screen component and a cover board, while the inner and outer components form a annular space in which the stuffing or protective agent is filled. Compared to present technique, the invention has following advantages that simple structure, easy installation, high efficiency of catching, filtration and accumulation, fully utilization of begriming function in unit volume, small space, and long working time, while it can be processed in integrated accumulated filth component and avoid the increase of pressure drop in the begriming process. The invention can be used in variable gas-liquid fixed-bed reactor in the hydrogenation on the petroleum hydrocarbon.
Description
Technical field
The present invention relates to a kind of filtration and depositing device, belong to solid, liquid separation equipment field, be applicable to that logistics is gas, liquid two-phase coexistent, dirt only exists in the liquid phase and the solid, liquid under the poor operating mode separates, especially the equipment of the dirts such as impurity, rust deposite and easy generation scale forming matter in the liquid phase is tackled, filters, deposited to a kind of liquid phase that is used for before entering the reactor catalyst bed.
Background technology
There are a spot of impurity, burnt matter in the raw material of hydrogenation reactor, and impulse piping and equipment and the rust deposite and the dirt that produce when flowing through system, if above-mentioned dirty thing is tired at the catalyst bed surface layer, the rapid choked flow circulation passage of meeting, cause feed distribution inhomogeneous, reduce the service efficiency of catalyst, simultaneously, because hydrogenation reaction is exothermic reaction, on the beds radial section, can produce temperature contrast owing to the difference of the extent of reaction, even hot-spot can occur, damage the performance of catalyst, thereby reduce the life cycle of catalyst greatly.The dirt thing also can make the pressure drop of reactor raise in the accumulation of catalyst bed laminar surface, and the tower tray that can crush when serious causes unplanned shutdown.For the gas-liquid fixed bed reaction of many other types, the incrustation problem all exists to some extent.
In order to address the above problem, generally can look raw material properties and install operating mode several sediment incrustation baskets are set in reactor, tackle, filter, deposit these dirts, as " petrochemical equipment technology " 1995-01 " development of hydrogenation reactor inner member " sediment incrustation basket that P17 introduced.In addition, sediment incrustation basket can increase circulation area, is convenient to fluid and passes through.Common sediment incrustation basket is a core structure, wraps up in screen cloth outward, places in the porcelain ball bed.According to the difference of dirty thing content, character and particle diameter in the fluid, adopt in-flow or outer-flowing type, the outer-flowing type cylindrical shell is established upper cover plate.At present, widely used sediment incrustation basket mostly is opened type, close mouth formula and profile of tooth mouth formula.Facts have proved because sediment incrustation basket hangs on the beam more, between string with chain, fill porcelain ball or protective agent on every side, loaded down with trivial details, lack of homogeneity not only is installed, the more important thing is that the incrustation capacity utilization ratio is not high, it is bigger to take up room.In addition, owing to directly place the upper surface of beds, sediment incrustation basket differs the mobile path length weak point of liquid phase, can directly influence the even distribution of liquid phase on beds.In addition, sediment incrustation basket also usually stops up after running after a while, causes problems such as pressure drop rising, and the gas-liquid distribution function of above-mentioned sediment incrustation basket a little less than, particularly in the reaction later stage, also may aggravate the degree that gas-liquid is distributed inequality.
Summary of the invention
At the deficiencies in the prior art, the incrustation ability that the invention provides a kind of simple in structure, easy for installation, interception, filtration, deposition efficiency height, unit volume can demonstrate fully, requisite space is little, can be made into self-contained incrustation assembly, especially the self-contained type sediment incrustation basket of piecemeal of dirts such as impurity in the liquid phase, rust deposite is tackled, filters, deposited to a kind of liquid phase that is used for before entering the hydrogenation reactor beds.
The packaging sediment incrustation basket concrete structure of piecemeal of the present invention is as follows: the stripe board that will the gripper shoe consistent with cross section in the reactor be divided into suitable number, the incrustation member of suitable number is set on every bar shaped gripper shoe, and the gripper shoe that has the incrustation member is assembled into the packaging sediment incrustation basket of piecemeal of the present invention in reactor.Wherein the incrustation member comprises parts such as deflector, interior screen assembly, outer screen assembly, cover plate.The horizontal cross-section of interior screen assembly and outer screen assembly is square, rectangle or other polygon, preferred rectangle.Interior screen assembly and outer screen assembly are by framework and wrap up screen cloth and constitute; interior screen assembly be arranged in parallel outside in the screen assembly, forms annulus between the two, establishes filler or protective agent in the annulus as required; the annulus top is by cover closure, and the annulus bottom is sealed by gripper shoe.The inner space that interior screen assembly forms is empty barrel structure, and pod apertures is offered at the gripper shoe position of bottom correspondence, and suitable height place in top is provided with deflector.The supporting construction of deflector can be arranged on cover plate, interior screen assembly, outer screen assembly or the gripper shoe.
The present invention is directed to logistics and be gas, liquid two-phase coexistent, only in liquid phase, have operating mode characteristics of dirt, by deflector and cover plate are set, and form the slit, for gas phase provides circulation passage between the two.Screen assembly and outer screen assembly in being provided with, constitute the mezzanine space of spacing unanimity between the two, and in mezzanine space, filling has the protective agent of interception, filtration, deposition rust deposite and dirt ability, be dropped in liquid phase on the tower tray and carrying dirts such as impurity, rust deposite secretly and flow to sediment incrustation basket, flow through in regular turn outer screen assembly, protective agent and in screen assembly, and offer on the tower tray of flowing through with the identical passage in interior screen assembly cross section, fall to distribution plate, after this dish distributes, drop to beds; And dirts such as impurity, rust deposite are held back for protected dose, and attached in the protective agent layer.Outer screen assembly, protective agent and interior screen assembly constitute the liquid phase stream circulation passage.Under the effect of brushing of gas phase, liquid phase stream realizes tentatively disperseing through the passage on the tower tray, when falling to beds.
The present invention is simple in structure, easy for installation, the incrustation ability of interception, filtration, deposition efficiency height, unit volume can demonstrate fully, and requisite space is little, has the distribution fluid capacity.Be applicable to the requirement that dirts such as hydrogenation reaction feedstock oil impurities, rust deposite are tackled, filtered and deposit.In operation process, the incrustation thing at first is deposited on the sediment incrustation basket lower part, and after this part was stopped up, liquid level rose and passes through from the sediment incrustation basket upper part, does not therefore increase pressure drop with the prolongation of operation process.Adopt square incrustation structure, have liquid dispersion evenly, space utilization fully waits advantage.Because the manhole of general large-scale reactor has the certain size restriction,, have and make advantages such as simple, easy for installation so adopt the piecemeal package assembly.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the present invention.
Fig. 2 is the vertical view of Fig. 1 structure of the present invention.
Fig. 3 is an overall structure schematic diagram of the present invention.
The specific embodiment
A kind of concrete structure of block assembled type sediment incrustation basket of the present invention is as follows, and the incrustation structure is by deflector, journal stirrup, interior screen assembly, outer screen assembly, cover plate, protective agent and connector combination.Deflector places the top of cover plate, and by journal stirrup both is connected as one, and deflector and cover plate form an angle, and the slit is set between the two; Screen assembly and outer screen assembly in being provided with, it is highly consistent, or the height of a little higher than outer screen assembly of height of interior screen assembly, can be higher than outer screen assembly 1～70mm as interior screen assembly, horizontal cross sectional geometry is similar figures, interior screen assembly places outer screen assembly inside, constitute the mezzanine space of spacing unanimity between the two, do in the mezzanine space of formation at interior screen assembly and outer screen banks, filling has the protective agent of interception, filtration, deposition rust deposite and dirt ability, and the protective agent of Cai Yonging is porcelain ball, quartz sand or catalyst etc. on demand; Interior screen assembly and outer screen assembly are by framework and wrap up the screen cloth formation, and its cross sectional shape is square or rectangle.
The invention will be further described below in conjunction with accompanying drawing.As depicted in figs. 1 and 2, the utility model structure is made up of deflector 7, journal stirrup 8, interior screen assembly 3, outer screen assembly 5, cover plate 1, protective agent 4 and connector 2.
Gripper shoe can and be installed the stripe board that is divided into varying number easy to make according to scale, for example for the gripper shoe of 1～4 meter of diameter, can be divided into 2～40 stripe board.1～8 incrustation member can be set on the every stripe board, and incrustation member total sectional area accounts for 20～80% of the gripper shoe gross area, and preferred 40～70%.Deflector 7 profiles are consistent with the geometry of the horizontal cross-section of outer screen assembly, the sectional dimension of screen assembly in its planar dimension is not less than, preferably equate or be a bit larger tham outer screen assembly horizontal cross-section with the cross section of outer screen assembly, can be as the length of side greater than the outer screen assembly horizontal cross-section length of side 2～100mm; Deflector except that becoming slab construction, can be along short side direction tapered or arcuate structure; These parts place the top of cover plate 1, by journal stirrup 8 both are linked together, and form an angle with cover plate, and angle is between 0～45 °, and preferred value is 0 °, and the slit is set between the two, between the general 2～300mm in slit.Screen assembly 3 and outer screen assembly 5 in being provided with, both are by framework and wrap up the screen cloth formation, and its horizontal cross sectional geometry is square or rectangle.It is highly consistent, or the height of interior screen assembly is higher than the height of outer screen assembly, and both horizontal cross sectional geometry are similar figures, and interior screen assembly places outer screen assembly inside, constitutes the mezzanine space of spacing unanimity between the two.In the mezzanine space of interior screen assembly and outer screen assembly formation; filling has the protective agent 4 of interception, filtration, deposition rust deposite and dirt ability; in connector 2 is fixed to cover plate 1 on screen assembly and the outer screen assembly, cover plate with protective agent seal up for safekeeping by interior screen assembly with outside in the mezzanine space that constitutes of screen assembly.The protective agent that adopts is porcelain ball, quartz sand or catalyst.Pod apertures shape on the gripper shoe is identical with interior screen assembly cross section, and area can be equal to or less than interior screen assembly cross section.Constitute slit between deflector 7 and the cover plate 1, for gas phase provides circulation passage with certain actual internal area; The wall of interior screen assembly and outer screen assembly is to have the screen cloth of certain order number to make, and is contained in the gap that the protective agent 4 of mezzanine space between the two has appropriateness, and the three has constituted the mobile passage of liquid phase.Other concrete structure and parameter can the knowledge design be definite routinely according to the needs that use.
During work; be hydrogenated to example with petroleum hydrocarbon; pending oil; gas is as the raw material of hydrogenation reactor; in inlet diffuser enters reactor; gas phase and liquid phase separation; liquid phase is fallen on gripper shoe; flow to the incrustation member after compiling; because impurity; dirts such as rust deposite only are present in the liquid phase; gas phase need not to handle just passes through erosion control; vapor phase stream circulation passage between deflector and cover plate enters beds; the liquid phase stream of carrying dirt secretly is to sediment incrustation basket, and sequential flow is crossed outer screen assembly; protective agent and interior screen assembly, the porcelain ball of in sediment incrustation basket, loading; the interception of quartz sand or catalyst; filter; under the deposition; rust deposite and dirt adhere to; hoard in sediment incrustation basket; and the liquid phase stream after purifying is offered on tower tray and the identical passage in interior screen assembly cross section, falls to beds, thereby has finished the incrustation process.In addition, owing to gas, liquid two-phase are continuous-flow, can brush the pulverizing liquid phase in the flow-guiding mouth place gas phase that gripper shoe is offered, under this effect, liquid phase stream realizes tentatively disperseing through the pod apertures on the gripper shoe, when falling to beds.
Continuation along with the incrustation process; the incrustation structure bottom that the liquid phase basin at first contacts can produce clogging; liquid level can be raise; the protective agent laminar flow mistake that liquid phase can never be stopped up or not stop up fully; and continuation incrustation process; on whole protecting agent layer height, stop up fully; only when the protective agent layer takes place to stop up fully; the porcelain ball on beds top just begins incrustation; explanation thus; set up the utility model service cycle of extension reactor greatly, and in sediment incrustation basket incrustation process, reactor pressure decrease does not raise.
Claims (10)
1, a kind of block assembled type sediment incrustation basket, it is characterized in that will the gripper shoe consistent being divided into the stripe board of suitable number with cross section in the reactor, the incrustation member of suitable number is set on every bar shaped gripper shoe, and the gripper shoe that has the incrustation member is assembled into the packaging sediment incrustation basket of piecemeal in reactor; Wherein the incrustation member comprises deflector, interior screen assembly, outer screen assembly and cover plate; The horizontal cross-section of interior screen assembly and outer screen assembly is square, rectangle or other polygon; Interior screen assembly and outer screen assembly are by framework and wrap up screen cloth and constitute, interior screen assembly be arranged in parallel outside in the screen assembly, forms annulus between the two, establishes filler or protective agent in the annulus, the annulus top is by cover closure, and the annulus bottom is sealed by gripper shoe; The inner space that interior screen assembly forms is empty barrel structure, and pod apertures is offered at the gripper shoe position of bottom correspondence, and suitable height place in top is provided with deflector.
2,, it is characterized in that the supporting construction of described deflector is arranged on cover plate, interior screen assembly, outer screen assembly or the gripper shoe according to the described sediment incrustation basket of claim 1.
3,, it is characterized in that described deflector becomes 0 °～45 ° angles with cover plate according to the described sediment incrustation basket of claim 1.
4,, it is characterized in that described interior screen assembly is consistent with outer screen assembly height, or interior screen assembly is higher than outer screen assembly 1～70mm according to the described sediment incrustation basket of claim 1.
5, according to the described sediment incrustation basket of claim 1, it is characterized in that gripper shoe for 1～4 meter of diameter, be divided into 2～40 stripe board, 1～8 incrustation member can be set on the every stripe board, incrustation member total sectional area accounts for 20～80% of the gripper shoe gross area.
6,, it is characterized in that described incrustation member total sectional area accounts for 40～70% of the gripper shoe gross area according to the described sediment incrustation basket of claim 5.
7,, it is characterized in that described deflector profile is consistent with the geometry of the horizontal cross-section of outer screen assembly, the sectional dimension of screen assembly in its planar dimension is not less than according to the described sediment incrustation basket of claim 1.
8, according to the described sediment incrustation basket of claim 7, it is characterized in that described deflector planar dimension equates with the cross section of outer screen assembly or the length of side greater than the outer screen assembly horizontal cross-section length of side 2～100mm.
9,, it is characterized in that described deflector is slab construction, taper or arcuate structure according to the described sediment incrustation basket of claim 1.
10,, it is characterized in that the slit between described deflector and the cover plate is 2～300mm according to the described sediment incrustation basket of claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100698724A CN100406109C (en) | 2004-10-29 | 2005-04-27 | Block assembled type sediment incrustation basket |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200410050796 | 2004-10-29 | ||
| CN200410050796.8 | 2004-10-29 | ||
| CNB2005100698724A CN100406109C (en) | 2004-10-29 | 2005-04-27 | Block assembled type sediment incrustation basket |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1765480A true CN1765480A (en) | 2006-05-03 |
| CN100406109C CN100406109C (en) | 2008-07-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100698724A Active CN100406109C (en) | 2004-10-29 | 2005-04-27 | Block assembled type sediment incrustation basket |
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| CN (1) | CN100406109C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279225B (en) * | 2008-05-23 | 2010-06-16 | 中国石油化工集团公司 | Filter device in gas-liquid co-current flow fixed bed reactor |
| CN102441348A (en) * | 2010-10-13 | 2012-05-09 | 中国石油化工股份有限公司 | Fouling basket and hydrogenation technological method for reducing skimming of catalyst |
| CN109675503A (en) * | 2017-10-18 | 2019-04-26 | Ifp 新能源公司 | Removable basket for catalytic reactor |
| CN110869104A (en) * | 2017-07-14 | 2020-03-06 | 托普索公司 | Particle separating catalytic chemical reactor with filter unit |
| JP2020114573A (en) * | 2019-01-17 | 2020-07-30 | イエフペ エネルジ ヌヴェルＩｆｐ Ｅｎｅｒｇｉｅｓ Ｎｏｕｖｅｌｌｅｓ | Removable basket for catalytic reactor |
| CN114425207A (en) * | 2020-09-17 | 2022-05-03 | 中国石油化工股份有限公司 | Gas dust removal device and dust removal filler thereof |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1475082A (en) * | 1973-05-16 | 1977-06-01 | Shell Int Research | Process and apparatus for the catalyric treatment of materials containing solid contaminants |
| GB2281224B (en) * | 1993-08-24 | 1998-02-11 | Norske Stats Oljeselskap | Solid/liquid slurry treatment apparatus and catalytic multi-phase reactor |
| EP1293246B1 (en) * | 1997-07-18 | 2015-08-19 | Crystaphase International, Inc. | Flow distribution method for chemical reactors |
| US6511598B2 (en) * | 1997-09-02 | 2003-01-28 | Moshe Gershenson | Concentrically arranged filter element assembly |
-
2005
- 2005-04-27 CN CNB2005100698724A patent/CN100406109C/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101279225B (en) * | 2008-05-23 | 2010-06-16 | 中国石油化工集团公司 | Filter device in gas-liquid co-current flow fixed bed reactor |
| CN102441348A (en) * | 2010-10-13 | 2012-05-09 | 中国石油化工股份有限公司 | Fouling basket and hydrogenation technological method for reducing skimming of catalyst |
| CN102441348B (en) * | 2010-10-13 | 2014-01-01 | 中国石油化工股份有限公司 | Fouling basket and hydrogenation technological method for reducing skimming of catalyst |
| CN110869104A (en) * | 2017-07-14 | 2020-03-06 | 托普索公司 | Particle separating catalytic chemical reactor with filter unit |
| CN109675503A (en) * | 2017-10-18 | 2019-04-26 | Ifp 新能源公司 | Removable basket for catalytic reactor |
| JP2020114573A (en) * | 2019-01-17 | 2020-07-30 | イエフペ エネルジ ヌヴェルＩｆｐ Ｅｎｅｒｇｉｅｓ Ｎｏｕｖｅｌｌｅｓ | Removable basket for catalytic reactor |
| JP7269739B2 (en) | 2019-01-17 | 2023-05-09 | イエフペ エネルジ ヌヴェル | Detachable basket of catalytic reactor |
| CN114425207A (en) * | 2020-09-17 | 2022-05-03 | 中国石油化工股份有限公司 | Gas dust removal device and dust removal filler thereof |
| CN114425207B (en) * | 2020-09-17 | 2023-01-10 | 中国石油化工股份有限公司 | Gas dust removal device and dust removal filler thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100406109C (en) | 2008-07-30 |
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