CN104275127B - Catch dirt basket and using method thereof - Google Patents
Catch dirt basket and using method thereof Download PDFInfo
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- CN104275127B CN104275127B CN201310274871.8A CN201310274871A CN104275127B CN 104275127 B CN104275127 B CN 104275127B CN 201310274871 A CN201310274871 A CN 201310274871A CN 104275127 B CN104275127 B CN 104275127B
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- inner frame
- outside framework
- dirt basket
- fixing hole
- basket
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/008—Details of the reactor or of the particulate material; Processes to increase or to retard the rate of reaction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
- B01J8/02—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with stationary particles, e.g. in fixed beds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2208/00—Processes carried out in the presence of solid particles; Reactors therefor
- B01J2208/00796—Details of the reactor or of the particulate material
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- Chemical Kinetics & Catalysis (AREA)
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Abstract
Catch dirt basket and using method thereof.The present invention relates to one and catch dirt basket, including cylindricality outside framework and the inner frame that is contained in retractable mode in outside framework, it is provided with screen cloth at the respective circumferential surface of outside framework and inner frame and bottom faces, the top of outside framework is opening, the top of inner frame is provided with lid, wherein being provided with fixing hole on the circumferential surface of outside framework, the inside of inner frame circumferential surface is fixedly installed the fixture that can engage with fixing hole.This dirt basket of catching is not only able to extend the life cycle of catalyst, and can significantly drop the low difficulty of construction filled out of holding reactor, improves construction quality.
Description
Technical field
The present invention relates to one catch dirt basket, particularly to a kind of for fixed bed reactors catch dirt basket.The invention still further relates to this using method catching dirt basket.
Background technology
In the fixed bed hydrogenation reactor in petroleum refining field, liquid charging stock would generally with a certain amount of impurity from upstream equipment.When being entrained with the liquid charging stock of impurity when flowing through beds, impurity can be deposited on and form dirt in beds " space ", makes " space " of beds to reduce, until " space " of beds is by dirt " being full of ".This can cause fluid skewness in bed, and the carbon deposit that dirt can produce in course of reaction is combined, and forms dirt layer, blocks circulation passage, cause liquid charging stock skewness.Additionally, dirt layer can tire out at catalyst bed surface layer and form shell at catalyst top layer.This will result in reactor internal drop and raises, and reduces the service efficiency of catalyst, and can crush time serious tower tray, causes unplanned shutdown.Simultaneously as hydrogenation reaction is exothermic reaction, on the radial section of beds, producing temperature contrast due to the difference of the extent of reaction, even there will be hot-spot, the performance of infringement catalyst, thus being substantially reduced the life cycle of catalyst.
In the prior art, in order to solve the problems referred to above, generally arrange in reactor and catch dirt basket to intercept, to filter, to deposit these impurity.Generally, the bottom catching dirt basket is embedded in porcelain ball layer, and top is then exposed to the outside of porcelain ball layer.When loading reactor, first insert beds, then the base contact beds that dirt basket is fixed in reactor and ensures to catch dirt basket will be caught, finally catch in the gap of dirt basket at each and insert porcelain ball.In order to prevent producing channel at porcelain ball bed, need manually the porcelain ball compacting in the gap catching dirt basket to be paved after inserting porcelain ball.After loading catalyst in reactor, the distance between beds and reactor head has become only small, and workmen can only bend over to enter installation and catch dirt basket.And after porcelain ball layer has loaded, workmen can activity space narrower and small, it is also only small respectively to catch the spacing between dirt basket, and this can cause the difficulty of construction of workmen very big, and is difficult to ensure that porcelain ball layer completely densified is paved.Therefore the engineering time of workmen also can become very long, and workmen is in the small space of full dust for a long time, is unfavorable for the health of health.Accordingly, it would be desirable to a kind of be easily installed catch dirt basket.
Summary of the invention
For the problems referred to above, the present invention proposes one and catches dirt basket.This dirt basket of catching is not only able to extend the life cycle of catalyst, and can significantly drop the low difficulty of construction filled out of holding reactor, improves construction quality.The invention still further relates to this using method catching dirt basket.
According to the first aspect of the invention, propose one and catch dirt basket, including cylindricality outside framework and the inner frame that is contained in retractable mode in outside framework, it is provided with screen cloth at the respective circumferential surface of outside framework and inner frame and bottom faces, the top of outside framework is opening, and the top of inner frame is provided with lid, is wherein provided with fixing hole on the circumferential surface of outside framework, the inside of inner frame circumferential surface is fixedly installed the fixture that can engage with fixing hole
In the initial state, inner frame is fully accommodated in inside outside framework, and fixture does not engage with fixing hole, described catch dirt basket install time, inner frame is pulled out through the top of outside framework and engages with fixing hole until fixture.
According to the present invention catch dirt basket, catch dirt basket installation process time, first by catch dirt basket inner frame be reduced to inside outside framework, again inner frame is pulled out from outside framework after porcelain ball layer is installed.So can increase the construction space in reactor, facilitate paving and compacting operation of porcelain ball layer, decrease the engineering time.
In one embodiment, the mesh on screen cloth is 100-300 order.This screen cloth is prevented from porcelain ball entrance and catches in dirt basket, and strainability is good.
In one embodiment, fixing hole is configured to the ducted body extended radially outwardly, fixture includes elastomer and the insert that can engage radially arranged with fixing hole, the upstream end thereof of elastomer is fixing with the inside of inner frame circumferential surface to be connected, the downstream end of elastomer can elastic bending radially inwards, the first end of insert is fixing with the downstream of elastomer to be connected, and the second end of insert is free end.By this with the use of fixture and insert, it is possible to make to be in the dirt basket of catching in original state and complete more easily to install.In a preferred embodiment, the axial length of interior screen cloth is equal with the axial length of outer screen cloth.In another embodiment, fixing hole is arranged on the top area of outside framework circumferential surface, and insert is in the bottom section of inner frame circumferential surface.So, catch dirt basket after the installation is complete according to the present invention, can reach to catch the dirt identical filter effect of basket with of the prior art.In another embodiment, fixing hole has multiple and is circumferentially uniformly distributed, and the setting of fixture and described fixing hole match.After catching dirt basket installation, outside framework and inner frame can be securely attached together by the fixing hole of this design and fixture, and the stress of each fixing hole and fixture also ratio is more uniform, extend the service life catching dirt basket.
In one embodiment, the lid being arranged on inner frame top can be completely covered the cross section of outside framework.So, load porcelain ball layer time be prevented from porcelain ball fall into catch dirt basket inside.It addition, the lid of this design also allows for workmen's operation.In a preferred embodiment, the top area at inner frame is provided with bayonet socket, lid with the face of inner frame joint on be provided with and bayonet fittings use drag hook.By bayonet socket and drag hook with the use of, it is possible to mount and dismount lid easily.In another embodiment, bayonet socket has multiple and is circumferentially uniformly distributed, and the setting of drag hook and bayonet socket match.Lid and inner frame can be securely attached together by the bayonet socket of this design and drag hook, and the stress of each bayonet socket and drag hook also ratio is more uniform, extend the service life catching dirt basket.
According to the second aspect of the invention, it is proposed that a kind of use the mentioned above method catching dirt basket, including:
Step one: the dirt basket of catching being in original state is fixedly mounted in reactor, and makes to catch contacting with the beds being preset in reactor of dirt basket；
Step 2: load porcelain ball layer in reactor；
Step 3: the inner frame catching dirt basket is pulled out until the fixture on inner frame engages with the fixing hole on outside framework from outside framework.
In one embodiment, in step 2, the surface of porcelain ball layer flushes with the lid catching dirt basket being in original state.So, the filter effect of the best can be reached in the use procedure catching dirt basket.
In this application, term " upstream " is defined as in axial direction the direction of outside framework dorsad, and term " downstream " is defined as and upstream opposite direction.Term " original state " is defined as the state caught before dirt basket is installed.
Compared with prior art, it is an advantage of the current invention that owing to inner frame can be telescopically arranged in outside framework, therefore first the inner frame catching dirt basket is reduced to inside outside framework, again inner frame is pulled out from outside framework after porcelain ball layer is installed.So can increase the construction space in reactor, facilitate paving and compacting operation of porcelain ball layer, decrease the engineering time.Inner frame is connected with elastic fixture by fixing hole with outside framework, facilitates the installation operation catching dirt basket.Additionally, the dirt basket of catching of the present invention also has good filtration effect, it is easy to processing, simple and practical advantage.
Accompanying drawing explanation
Based on embodiment reference accompanying drawing, the present invention will be described in more detail hereinafter.Wherein:
Fig. 1 be according to the present invention catch dirt basket structural representation in the initial state；
Fig. 2 is the top view of Fig. 1；
Fig. 3 be according to the present invention catch dirt basket structural representation in installment state；
Fig. 4 is the scheme of installation catching dirt basket according to the present invention.
In the drawings, identical component is indicated by identical accompanying drawing labelling.Accompanying drawing is not drawn according to actual ratio.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention will be further described.
Fig. 1 schematically shows the structure catching dirt basket 10 according to the present invention.Catch dirt basket 10 and include outside framework 11 and the inner frame 12 being contained in outside framework 11 in retractable mode.In one embodiment, outside framework 11 and inner frame 12 are all configured to cylinder, to facilitate the flexible of inner frame 12.It is provided with screen cloth 13 to realize filtration at outside framework 11 and the respective circumferential surface of inner frame 12 and bottom faces.In one embodiment, the specification of screen cloth 13 is chosen as 100-300 order.
In order to enable to be pulled out from outside framework 11 by inner frame 12, complete to catch the installation of dirt basket 10, outside framework 11 top is set to opening, the top of inner frame 12 is provided with lid 14.It addition, the top area at the circumferential surface of outside framework 11 is provided with fixing hole 15, it is fixedly installed the fixture 20 that can engage with fixing hole 15 in the inside of the bottom section of inner frame 12 circumferential surface.So lid 14 is applied in axial direction towards upstream active force, namely inner frame 12 can be pulled out outside framework 11 until fixture 20 engages with fixing hole 15 and completes to catch the installation of dirty basket 10.After the installation completing to catch dirt basket 10, in order to make outside framework 11 and inner frame 12 be securely attached together, fixing hole 15 is set to multiple and is circumferentially uniformly distributed, and fixture 20 then matches with fixing hole 15.In the embodiment shown in Fig. 1 and 2, the quantity of fixture 20 is four, and correspondingly the quantity of fixing hole 15 is also four.
The axial length of interior screen cloth 12 is equal with the axial length of outer screen cloth 11.Owing to fixing hole 15 is arranged on the top area of outside framework 11 and fixture 20 is arranged on the bottom section of inner frame 12, therefore after catching dirt basket 10 installation, catching the integral installation form of dirt basket 10 and the installation form identical (this is described below) catching dirt basket of the prior art, filter efficiency is also correspondingly with of the prior art to catch dirty basket close.
Show fixing hole 15 and the structure of fixture 20 in FIG.Fixing hole 15 is the ducted body extended radially outwardly.Fixture 20 includes elastomer 21 and the insert 22 that can engage radially arranged with fixing hole 15.The upstream end thereof of elastomer 21 is fixing with the inside of inner frame 12 circumferential surface to be connected, and the downstream end of elastomer 21 can elastic bending radially inwards.The first end of insert 22 is fixing with the downstream end of elastomer 21 to be connected, and the second end of insert 22 is free end.That is, fixture 20 composition is formed as elastic tenon." free end " means in the initial state, and insert 22 is not inserted in fixing hole 15, but is only inserted in installment state in fixing hole 15.Due to elastomer 21 energy elastic bending, therefore when catching dirt basket 10 and being entered installment state by original state, when insert 22 runs into fixing hole 15, can engage with fixing hole 15 at once under the elastic acting force of elastomer 21, facilitating the installation catching dirt basket, Fig. 3 show schematically show the form catching dirt basket 10 being in installment state.
As it is shown in figure 1, lid 14 is embodied as circle.Preferably, the diameter of lid 14 is more than the diameter of outside framework 11 so that lid 14 can be completely covered the cross section of outside framework 11.It means that lid 14 can cover the gap between inner frame 12 and outside framework 11, to prevent the porcelain ball when loading porcelain ball layer from falling into the inside catching dirt basket 10.In one embodiment, the top area at inner frame 12 is provided with bayonet socket 30, lid 14 with the face of inner frame 12 joint on be provided with bayonet socket 30 with the use of drag hook 31.So, be connected with bayonet socket 30 connection namely achieving lid 14 with inner frame 12 by drag hook 31.In a preferred embodiment, bayonet socket 30 has multiple and is circumferentially uniformly distributed, and the setting of drag hook 31 and bayonet socket 30 match.In the embodiment shown in Fig. 1 and 2, the quantity of drag hook 31 is four, and correspondingly the quantity of bayonet socket 30 is also four.
Below according to Fig. 1 to 4, the use procedure catching dirt basket 10 according to the present invention is described.
First, catch dirt basket 10(as shown in Figure 1 by what be in original state) it is fixedly mounted in reactor (not shown), and make to catch contacting with the catalyst bed being preset in reactor 51 layers of dirt basket 10.Then, in reactor, porcelain ball layer 52 is loaded.Finally, the inner frame 12 catching dirt basket 10 is pulled out until the fixture 20 on inner frame 12 engages with the fixing hole 15 on outside framework 11 from outside framework 11, complete to catch the installation of dirt basket 10.Fig. 4 shows the structure after having loaded porcelain ball layer 52 and having caught dirt basket 10.Only symbolically show that is caught a dirt basket 10 in the diagram.In a preferred embodiment, the surface being set to porcelain ball layer in the filling degree of porcelain ball layer 52 flushes with the lid 14 catching dirt basket 10 being in original state.Inner frame 12 owing to now catching dirt basket 10 is also completely accommodated in outside framework 11, and therefore the construction space in reactor is compared with prior art bigger, facilitates paving and compacting operation of the porcelain ball layer 52 caught between dirt basket 10, decreases the engineering time.After the installation completing to catch dirt basket 10, due to catch dirt basket 10 inner frame 12 equal with the axial length of outside framework 11, therefore the half catching dirt basket 10 is in porcelain ball layer 52 inside, it is outside that second half is in porcelain ball layer 52, this with of the prior art catch dirt basket 10 installment state identical, therefore filter effect is also similar.
Although by reference to preferred embodiment, invention has been described, but without departing from the scope of the invention, it is possible to it is carried out various improvement and parts therein can be replaced with equivalent.The invention is not limited in the specific embodiment disclosed in literary composition, but include all technical schemes falling in scope of the claims.
Claims (9)
1. catch dirt basket for one kind, it is contained in the inner frame in described outside framework including cylindricality outside framework with in retractable mode, it is provided with screen cloth at described outside framework and the respective circumferential surface of described inner frame and bottom faces, the top of described outside framework is opening, the top of described inner frame is provided with lid, wherein being provided with fixing hole on the circumferential surface of described outside framework, the inside of described inner frame circumferential surface is fixedly installed the fixture that can engage with described fixing hole
In the initial state, described inner frame is fully accommodated in inside described outside framework, and described fixture does not engage with described fixing hole, when catching dirt basket described in completing and installing, described inner frame is pulled out until described fixture engages with described fixing hole through the top of described outside framework.
2. according to claim 1 catch dirt basket, it is characterized in that, described fixing hole is configured to the ducted body extended radially outwardly, described fixture includes elastomer and the insert that can engage radially arranged with described fixing hole, the upstream end thereof of described elastomer is fixing with the inside of described inner frame circumferential surface to be connected, the downstream end of described elastomer can elastic bending radially inwards, the first end of described insert is fixing with the downstream of described elastomer to be connected, and the second end of described insert is free end.
3. according to claim 2 catch dirt basket, it is characterised in that described fixing hole is arranged on the top area of described outside framework circumferential surface, and described insert is in the bottom section of described inner frame circumferential surface.
4. according to claim 1 catch dirt basket, it is characterised in that the lid being arranged on described inner frame top can be completely covered the cross section of described outside framework.
5. according to claim 4 catch dirt basket, it is characterised in that the top area at described inner frame is provided with bayonet socket, described lid with the face of described inner frame joint on be provided with the drag hook used with described bayonet fittings.
6. according to claim 5 catch dirt basket, it is characterised in that described bayonet socket has multiple and is circumferentially uniformly distributed, and the setting of described drag hook and described bayonet socket match.
7. according to any one of claim 1 to 6, catch dirt basket, it is characterised in that described fixing hole has multiple and is circumferentially uniformly distributed, and the setting of described fixture and described fixing hole match.
8. use the method catching dirt basket according to any one of claim 1 to 7, including:
Step one: the dirt basket of catching being in original state is fixedly mounted in reactor, and make to catch dirt basket and contact with the beds being preset in reactor；
Step 2: load porcelain ball layer in described reactor；
Step 3: the described inner frame catching dirt basket is pulled out until the fixture on described inner frame engages with the fixing hole on described outside framework from outside framework.
9. method according to claim 8, it is characterised in that in described step 2, the surface of described porcelain ball layer flushes with the described lid catching dirt basket being in original state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274871.8A CN104275127B (en) | 2013-07-02 | 2013-07-02 | Catch dirt basket and using method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310274871.8A CN104275127B (en) | 2013-07-02 | 2013-07-02 | Catch dirt basket and using method thereof |
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| Publication Number | Publication Date |
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| CN104275127A CN104275127A (en) | 2015-01-14 |
| CN104275127B true CN104275127B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310274871.8A Active CN104275127B (en) | 2013-07-02 | 2013-07-02 | Catch dirt basket and using method thereof |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114053957A (en) * | 2021-12-02 | 2022-02-18 | 苏州金宏气体股份有限公司 | Device for filling catalyst |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958952A (en) * | 1973-05-16 | 1976-05-25 | Shell Oil Company | Reactor having a catalytic bed with upstream means for filtering solid contaminants |
| JPS5935656B2 (en) * | 1976-07-03 | 1984-08-30 | 川崎重工業株式会社 | Catalyst unit for exhaust gas denitrification equipment |
| CN201507516U (en) * | 2009-09-16 | 2010-06-16 | 上海骐荣机械自控有限公司 | Length-extensible drive rod |
| CN202460593U (en) * | 2012-03-02 | 2012-10-03 | 中海石油炼化有限责任公司 | Scale depositing device of hydrogenation reactor |
-
2013
- 2013-07-02 CN CN201310274871.8A patent/CN104275127B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3958952A (en) * | 1973-05-16 | 1976-05-25 | Shell Oil Company | Reactor having a catalytic bed with upstream means for filtering solid contaminants |
| JPS5935656B2 (en) * | 1976-07-03 | 1984-08-30 | 川崎重工業株式会社 | Catalyst unit for exhaust gas denitrification equipment |
| CN201507516U (en) * | 2009-09-16 | 2010-06-16 | 上海骐荣机械自控有限公司 | Length-extensible drive rod |
| CN202460593U (en) * | 2012-03-02 | 2012-10-03 | 中海石油炼化有限责任公司 | Scale depositing device of hydrogenation reactor |
Non-Patent Citations (1)
| Title |
|---|
| 加氢反应器除垢方法研究;王岩 等;《当代化工》;20110630;第40卷(第6期);第597-599页 * |
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| CN104275127A (en) | 2015-01-14 |
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