CN107630825A - A kind of catalytic reforming unit centrifugal compressor - Google Patents
A kind of catalytic reforming unit centrifugal compressor Download PDFInfo
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- CN107630825A CN107630825A CN201710816540.0A CN201710816540A CN107630825A CN 107630825 A CN107630825 A CN 107630825A CN 201710816540 A CN201710816540 A CN 201710816540A CN 107630825 A CN107630825 A CN 107630825A
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- impeller
- compressor
- catalytic reforming
- bearing
- reforming unit
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Abstract
A kind of catalytic reforming unit centrifugal compressor, formed by stator pack, rotor set, bearing group and sealing group etc. four are most of, it is characterised in that：(1) more set dividing plates of compressor are fitted together to form dividing plate beam, and compressor compresses gas main positions diffuser, bend and the return channel to be flowed through is formed naturally after forming dividing plate beam；(2) for impeller diameter between 500mm~850mm, the number of impeller is 6~10.Spread pattern of the impeller on main shaft is in-line arrangement, and balancing frame is in side；(3) previous impeller is identical with diameter at the latter impeller outlet, and between two adjacent impellers, the blade of the latter impeller is set relative to the certain angle of the blade deflection of previous impeller；(4) spring bearing uses tilting-pad bearing, and for thrust bearing using Jin Sibaileishi, the both sides of thrust bearing use identical structure；(5) interstage seal and mouth circle are sealingly mounted on corresponding dividing plate, and shaft end seal and dry gas seals are arranged on the left and right end cap of unit.The present invention obtains the favorable comment of user.
Description
Technical field
The invention belongs to technical field of petrochemical industry, and in particular to one kind for the matched centrifugation pressure of catalytic reforming unit
Contracting machine.
Background technology
Catalytic reforming is under conditions of having catalyst, and the hydrocarbon molecules structure in gasoline fraction is rearranged into
The process of recruit's structure.Reformed Gasoline can be directly used as the blend component of gasoline, can also be produced through Aromatics Extractive Project benzene, toluene and
Dimethylbenzene.And the hydrogen of accessory substance is then hydrogen source used in petroleum refiners hydrogenation plant (hydrofinishing, being hydrocracked).Urge
Change the important means reformed and be raising quality of gasoline and production petrochemical materials, thus catalytic reforming unit is modern petroleum refining
One of most common device in factory processed and petroleum complex.
Catalytic reforming process mainly includes pretreatment of raw material and reforms two procedures, to produce aromatic hydrocarbons as purpose technique
In, in addition to Aromatics Extractive Project and distilling apparatus.Enter reforming process by pretreated raw material, recycle hydrogen is mixed and heated to
After 490 DEG C~525 DEG C, reactor is entered under 1~2MPa.During which reactor is provided with heating furnace, with compensation by 3~4 series connection
The absorbed heat of reaction.The material for leaving reactor passes through gas-liquid separation, and it is to reform that resulting liquid, which sloughs light component,
Gasoline；Or it is sent to aromatic extraction unit production aromatic hydrocarbons.
Catalytic reforming process is what is desired is that a kind of special circulating hydrogen compressor.We retrieved State Intellectual Property Office
Website (www.sipo.gov.cn), only see Chinese patent 201521077307.8 and reported《A kind of crude benzole hydrogenation produces work
Circulating hydrogen compressor in skill》, and it be related to be only compressor outside the problem of connecing and fixing, be not directed to
The structure of compressor in itself.Thus, to compressor function in itself and how suitable for catalytic reforming process reference price is had no
Value.
Chinese patent application case 200810161543.6 discloses《A kind of circulating hydrogen compressor of hydrocarbon hydrogenation device drivetrain
System design》, it is also not directed to the structure of compressor in itself.Equally also we are also opened without reference to value and technology
Breaking-out is used.
In order to which suitable for catalytic reforming process, we must the designed, designed reformation hydrogen booster compressor new with creation.
The content of the invention
The present invention is to meet the particular/special requirement of catalytic reforming process, seeks a kind of catalytic reforming unit centrifugal compressed
Machine, i.e., a kind of special reformation hydrogen booster compressor.
The catalytic reforming unit centrifugal compressor of the present invention is big by stator pack, rotor set, bearing group and sealing group etc. four
Part forms, and wherein stator pack includes cylinder, left end cap, right end cap, dividing plate, enters air duct, chimney fan；Rotor set include impeller,
Main shaft, spacer, balancing frame, thrust disc, nut, adjusting pad and stopper ring；Bearing group includes two spring bearings and a thrust
Bearing；Sealing group then includes interstage seal, mouth circle sealing, balancing frame sealing, shaft end seal and dry gas seals, it is characterised in that：
(1) more set dividing plates of compressor fit together to form dividing plate beam, are formed compressing naturally after forming dividing plate beam
Machine compressed gas main positions diffuser, bend and the return channel to be flowed through；
(2) for the impeller diameter installed in rotor set between 500mm~850mm, the number of impeller is 6~10.Leaf
The spread pattern taken turns on main shaft is in-line arrangement, and balancing frame is in side.
(3) previous impeller is identical with diameter at the latter impeller outlet, and the design concept that porch diameter is different, leaf
The previous form of impeller blade from the latter is different, from the impeller blade after balancing frame be also before balancing frame it is different,
Between two adjacent impellers, the blade of the latter impeller is set relative to the certain angle of the blade deflection of previous impeller；
(4) spring bearing uses tilting-pad bearing, and thrust bearing is using Jin Sibaileishi, for proof stress condition,
The both sides of thrust bearing use identical structure.
(5) interstage seal and mouth circle are sealingly mounted on corresponding dividing plate, and shaft end seal and dry gas seals are arranged on unit
Left and right end cap on.
The catalytic reforming unit of present invention centrifugation centrifugal compressor, described diffuser can divide vaned diffuser and without leaves
Diffuser, the unit design data according to given by user, after type selecting, under conditions of meeting that user requires, to make pressure
The performance of contracting machine is more preferable, can be met by adjusting the form of diffuser.
The catalytic reforming unit centrifugal compressor of the present invention, it is latter between described two impellers adjacent in impeller
The blade of individual impeller is set relative to the certain angle of the blade deflection of previous impeller；It is for backward leaning vane：5~15 degree；
It is for forward curved vane：5~15 degree；It it is 5~30 degree for radial blade.
The catalytic reforming unit centrifugal compressor of the present invention, spread pattern of the described impeller on main shaft is in-line arrangement,
Balancing frame can effectively reduce gas to axial thrust caused by rotor, make a whole set of unit operation in the arrangement form of side
It is more steady.
The catalytic reforming unit centrifugal compressor of the present invention, described spring bearing and thrust bearing, spring bearing pair
The rotor of compressor plays a part of support, supports the size of span and has conclusive effect, thrust axis to the performance of compressor
Hold is for balancing axial thrust caused by compressor drum, to ensure the even running of compressor.
Brief description of the drawings
Fig. 1 is the overall profile of the catalytic reforming unit centrifugal compressor of the present invention；
Fig. 2 is the stator pack profile of the catalytic reforming unit centrifugal compressor of the present invention；
Fig. 3 is the rotor figure of the catalytic reforming unit centrifugal compressor of the present invention；
Fig. 4 is the installation drawing using steam turbine as the catalytic reforming unit centrifugal compressor of drive form.
Fig. 5 is the installation drawing using motor as the catalytic reforming unit centrifugal compressor of drive form.
Embodiment
The catalytic reforming unit of the present invention is further described and supplemented with centrifugal compressor below in conjunction with the accompanying drawings.
As shown in figure 1, the catalytic reforming unit of the present invention includes 1 stator pack, 2 rotor sets, 3 bearings with centrifugal compressor
Group, 4 sealing groups four group portion greatly.
Fig. 2 show the stator pack profile of the catalytic reforming unit centrifugal compressor of the present invention, and stator pack includes 11
Air duct, 16 chimney fans are entered in cylinder, 12 left end caps, 13 right end caps, 14 dividing plates, 15.The polylith dividing plate of compressor is passed through into pull bar spiral shell
Bolt is joined together to form partition board portion 14, and partition board portion is installed in cylinder 11 by dividing plate specific purpose tool, by left end cap 12
Be welded with right end cap 13 by bolt and cylinder 11 closing below cylinder into air duct 15 and chimney fan 16, by some other zero
Part forms complete stator pack 1 installed in end cap in order.
Fig. 3 show the rotor figure of the catalytic reforming unit centrifugal compressor of the present invention, its impeller of rotor of the invention
21 according to once mounting as shown in the figure on main shaft 22, positioned between impeller and impeller by spacer 23, in the leaf of in-line arrangement
Balancing frame 24 is installed after wheel 21, fixed impeller location on rotor by locknut 25 and 26, successively according to rotor figure by thrust
Disk 27, adjusting pad 28 and stopper ring 29 are arranged on main shaft 22 and form complete rotor set.
Below we by specific embodiment to the present invention catalytic reforming unit centrifugal compressor parameter make into
The explanation of one step.
The catalytic reforming unit centrifugal compressor of the Steam Turbine Driven of embodiment 1
The present embodiment 1 is seven grades of centrifugal compressors, and impeller uses binary double shrouded wheel, and its blade uses antecurvature formula structure；
Diffuser uses vaned diffuser.Steam condition is possessed according to user's field condition, so embodiment uses Steam Turbine Driven.
The motor-driven catalytic reforming unit centrifugal compressor of embodiment 2
The present embodiment 2 is eight grades of centrifugal compressors, and impeller uses double shrouded wheel, and impeller uses binary, and its blade uses footpath
To structure, 15 degree are deflected between the blade of front and rear two impeller；Using vaneless diffuser.This embodiment user scene does not possess steaming
Vapour condition, so set reformer connects the form that gear-box connects compressor using motor.
The catalytic reforming unit centrifugal compressor of the Steam Turbine Driven of embodiment 3
The present embodiment 3 is two centrifugal compressors of Steam Turbine Driven, and two compressors are arranged in the both sides of steam turbine,
Form is compressor 608+ steam turbines+compressor 6011, and the impeller diameter of two compressors is 600mm, and impeller number is distinguished
For the configuration of 8 impellers and 11 impellers.Impeller uses binary double shrouded wheel, and its blade uses swept-back structure, there is leaf
Diffuser structure.As shown in figure 4, the location arrangements figure of the catalytic reforming unit centrifugal compressor for Steam Turbine Driven.
The motor-driven catalytic reforming unit centrifugal compressor of embodiment 4
The present embodiment 4 is that motor drives two centrifugal compressors, and two compressor in-line arrangements are arranged in the side of motor, form
For motor+gear-box+compressor 608+ compressors 609, the impeller diameter of two compressors is 600mm, and impeller number is distinguished
For the configuration of 8 impellers and 9 impellers.Impeller uses binary double shrouded wheel, and its blade uses swept-back structure, and no leaf expands
Depressor structure.As shown in figure 5, the location arrangements figure for motor-driven catalytic reforming unit centrifugal compressor.
After same user has signed technical know-how agreement, the artificial more Large Scale Petrochemical Enterprises of application of this patent are urged
Change reformation production line and provide various different scales catalytic reforming unit centrifugal compressors, through stable fortune after a while
Turn, achieve very good technique effect, also createed more preferable economic benefit, obtain the consistent favorable comment of users.
Above-mentioned each scheme is the embodiment of the catalytic reforming unit centrifugal compressor run for different user scenes,
According to a whole set of catalytic reforming unit technique difference require, drive form used in catalytic reforming unit centrifugal compressor and
The type selecting structure of compressor is all different, and above example is catalytic reforming unit of the part in the operation of user scene.This
Aforementioned four embodiment is not limited in invention, and for those skilled in the art, form of the invention can do corresponding change
More and modification, every change and modification within the spirit and principles in the present invention, be regarded as comprising the present invention authority it
It is interior.
Claims (4)
1. a kind of catalytic reforming unit centrifugal compressor, by most of group of stator pack, rotor set, bearing group and sealing group etc. four
Into wherein stator pack includes cylinder, left end cap, right end cap, dividing plate, enters air duct, chimney fan；Rotor set include impeller, main shaft, every
Set, balancing frame, thrust disc, nut, adjusting pad and stopper ring；Bearing group includes two spring bearings and a thrust bearing；It is close
Envelope group then includes interstage seal, mouth circle sealing, balancing frame sealing, shaft end seal and dry gas seals, it is characterised in that：
(1) more set dividing plates of compressor are fitted together to form dividing plate beam, and compressor pressure is formed naturally after forming dividing plate beam
Contracting gas main positions diffuser, bend and the return channel to be flowed through；
(2) for the impeller diameter installed in rotor set between 500mm~850mm, the number of impeller is 6~10.Impeller exists
Spread pattern on main shaft is in-line arrangement, and balancing frame is in side；
(3) previous impeller is identical with diameter at the latter impeller outlet, and the design concept that porch diameter is different, impeller leaf
The previous form of piece from the latter is different, from the impeller blade after balancing frame is also different before balancing frame, adjacent
Two impellers between, the blade of the latter impeller is set relative to the certain angle of the blade deflection of previous impeller；
(4) spring bearing uses tilting-pad bearing, and thrust bearing is using Jin Sibaileishi, for proof stress condition, thrust
The both sides of bearing use identical structure；
(5) interstage seal and mouth circle are sealingly mounted on corresponding dividing plate, and shaft end seal and dry gas seals are installed in a left side for unit
On right end cap.
2. the catalytic reforming unit centrifugal compressor as described in claim 1, it is characterised in that described diffuser, which can divide, to be had
Leaf diffuser and vaneless diffuser, the unit design data according to given by user, after type selecting, to meet user's requirement
Under the conditions of, to make the performance of compressor more preferable, can be met by adjusting the form of diffuser.
3. the catalytic reforming unit centrifugal compressor as described in claim 1, it is characterised in that described adjacent in impeller
Between two impellers, the blade of the latter impeller is set relative to the certain angle of the blade deflection of previous impeller；For rear
Bent blades are：5~15 degree；It is for forward curved vane：5~15 degree；It it is 5~30 degree for radial blade.
4. the catalytic reforming unit centrifugal compressor as described in claim 1, it is characterised in that described impeller is on main shaft
Spread pattern be in-line arrangement, balancing frame is then arranged in the side of end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816540.0A CN107630825A (en) | 2017-09-12 | 2017-09-12 | A kind of catalytic reforming unit centrifugal compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710816540.0A CN107630825A (en) | 2017-09-12 | 2017-09-12 | A kind of catalytic reforming unit centrifugal compressor |
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| Publication Number | Publication Date |
|---|---|
| CN107630825A true CN107630825A (en) | 2018-01-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710816540.0A Pending CN107630825A (en) | 2017-09-12 | 2017-09-12 | A kind of catalytic reforming unit centrifugal compressor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185633A (en) * | 2019-06-20 | 2019-08-30 | 山东京博石油化工有限公司 | A kind of change method of catalytic unit and compressor and working conditions of compressor |
| CN113629965A (en) * | 2021-07-28 | 2021-11-09 | 鑫磊压缩机股份有限公司 | MCL compressor system with compressor directly connected with magnetic suspension motor |
-
2017
- 2017-09-12 CN CN201710816540.0A patent/CN107630825A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110185633A (en) * | 2019-06-20 | 2019-08-30 | 山东京博石油化工有限公司 | A kind of change method of catalytic unit and compressor and working conditions of compressor |
| CN113629965A (en) * | 2021-07-28 | 2021-11-09 | 鑫磊压缩机股份有限公司 | MCL compressor system with compressor directly connected with magnetic suspension motor |
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