CN108869335A - A kind of four deep processing device centrifugal compressor of butadiene carbon - Google Patents
A kind of four deep processing device centrifugal compressor of butadiene carbon Download PDFInfo
- Publication number
- CN108869335A CN108869335A CN201811099513.7A CN201811099513A CN108869335A CN 108869335 A CN108869335 A CN 108869335A CN 201811099513 A CN201811099513 A CN 201811099513A CN 108869335 A CN108869335 A CN 108869335A
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- China
- Prior art keywords
- impeller
- bearing
- compressor
- deep processing
- balancing frame
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/10—Centrifugal pumps for compressing or evacuating
- F04D17/12—Multi-stage pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/051—Axial thrust balancing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/26—Rotors specially for elastic fluids
- F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
- F04D29/284—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors
- F04D29/286—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for compressors multi-stage rotors
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/4206—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for elastic fluid pumps
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of four deep processing device centrifugal compressor of butadiene carbon, mainly by stator pack (casing, partition, balancing frame sealing, mouth circle sealing, end cap etc.), rotor set (main shaft, impeller, spacer, balancing frame etc.), bearing group (spring bearing, thrust bearing), the composition such as dry gas seals, it is characterised in that：(1) compressor possesses two sections of inlet and outlet, and uses horizontally split construction；(2) compressor has seven or eight impellers, impeller diameter areImpeller all uses backward bent vane formula impeller；(3) partitions at different levels match fixation with the seam allowance on casing；(4) spring bearing uses tilting-pad bearing, uses the identical structure in two sides in main shaft two sides, thrust bearing is Jin Sibailei type；(5) carry out balancing axial thrust in the high side installation balancing frame of pressure.Application of the compressor particularly suitable for four deep process of butadiene carbon, can obtain very considerable economic benefit.
Description
Technical field
The invention belongs to technical field of petrochemical industry, and in particular to arrive a kind of four deep processing project matched with devices of butadiene carbon
Centrifugal compressor.
Background technique
Four deep processing of carbon be using a large amount of C_4 hydrocarbon classes generated in petroleum refining and petrochemical production process as raw material,
It reacts it with iso-butane and generates isooctane hydrocarbon.
This processing technology includes raw material hydrofinishing and four deep processing two parts of carbon.The purpose of raw material hydrofinishing is to remove
Objectionable impurities " butadiene " in four deep processing of carbon reaction.Butadiene in removing raw material now uses selective hydrogenation technology, with
Liquid acid is that four deep process of carbon of catalyst can be divided into sulfuric acid process and hydrogen fluoride.
Chinese patent application case 201410389450.4 discloses《A kind of method that four deep processing of carbon prepares isooctane》,
In be not directed to the structure of compressor itself, function to compressor itself and how to be suitable for four deep process of carbon and have no
Reference value.
In order to be suitable for four deep process of carbon, we must the designed, designed rich gas compressor new with innovation.
Summary of the invention
The present invention is the special process requirement in order to meet four deep processing of butadiene carbon, research and develop a kind of butadiene carbon four it is deep plus
Work centrifugal compressor, i.e., a kind of special rich gas compressor.
Four deep processing project centrifugal compressor of butadiene carbon of the invention, mainly by stator pack (casing, partition, balance
Disk sealing, mouth circle sealing, end cap etc.), rotor set (main shaft, impeller, spacer, balancing frame etc.), bearing group (spring bearing, thrust
Bearing), the composition such as dry gas seals, it is characterised in that：
(1) compressor possesses two sections of inlet and outlet, and uses horizontally split construction；
(2) compressor has seven or eight impellers, impeller diameter areImpeller all uses swept-back leaf
Bladed impeller；
(3) partitions at different levels match fixation with the seam allowance on casing；
(4) spring bearing use tilting-pad bearing, main shaft two sides use the identical structure in two sides, thrust bearing be gold this
Primary thunder type；
(5) carry out balancing axial thrust in the high side installation balancing frame of pressure.
Its preferred impeller diameter ratio of impeller of the invention is D1/D2=(0.84~1.14) (D0/D2)
Four deep processing device centrifugal compressor of butadiene carbon of the invention, described spring bearing and thrust bearing, branch
Support bearing plays the role of support to the rotor of compressor, and the size that span is made has conclusive work to the performance of compressor
With.Thrust bearing is for balancing remaining axial thrust, to guarantee the steady running of compressor.
Centrifugal compressor of the invention is supplied to specific user and makees the use of four deep processing matched with devices of butadiene carbon, achieves
Very ideal effect.And the user for signing classified contract is supplied as non-standard equipment, obtain the favorable comment of users.
Detailed description of the invention
Fig. 1 is the whole sectional view of four deep processing project device centrifugal compressor of butadiene carbon of the invention；
Fig. 2 is the rotor figure of four deep processing project device centrifugal compressor of butadiene carbon of the invention；
Fig. 3 is the impeller of the second segment first order of four deep processing project device centrifugal compressor of butadiene carbon of the invention
Meridian plane schematic diagram.
Specific embodiment
Four deep processing project device of butadiene carbon of the invention is made with centrifugal compressor with reference to the accompanying drawing further
Illustrate and supplements.
As shown in Figure 1, four deep processing device of butadiene carbon of the invention centrifugal compressor includes 1 stator pack, 2 partitions
Group group, 3 sealing groups, 4 rotor sets, 5 bearing groups, 6 driving end dry gas seals, 7 are by driving seven parts of end dry gas seals.
Fig. 2 show the rotor figure of four deep processing device centrifugal compressor of butadiene carbon of the invention, rotor of the present invention
On impeller 8~15 according to being sequentially arranged on main shaft 16 as shown in the figure, carried out between impeller and impeller by spacer 17~22
Positioning is equipped with balancing frame 23 among the impeller 10 and impeller 15 of two sections of afterbodies, by locknut 24 and 25 by rotor
Upper impeller location is fixed, and successively thrust disc 26, thrust locknut 27 and displacement disk 28 are mounted on main shaft 16 according to rotor figure
Form complete rotor set.
Fig. 3 show the impeller of the second segment first order of four deep processing device centrifugal compressor of butadiene carbon of the invention
The impeller diameter ratio D1/D2 of meridian plane schematic diagram corresponding thereto.
The too small flowing that can deteriorate gas in impeller with too big impeller diameter ratio, when impeller diameter ratio is excessive, impeller outer diameter D2 with
Profile ID D1 differs very little.Since impeller imports and exports peripheral speed difference of two squares very little, impeller is just unable to fully utilize centrifugal force
To improve pressure.The excessive angle of flare that will increase leaf road of impeller diameter ratio simultaneously easily causes air-flow separation, stage efficiency is caused to reduce.
When impeller diameter ratio is too low, cause impeller leaf road too long, increase friction loss, stage efficiency equally can also reduce.General optimal wheel
Diameter ratio is D1/D2=(0.84~1.14) (D0/D2), and (D0/D2) is impeller inlet relative diameter herein, and D0 is in vane inlet
Diameter.
We are by specific embodiment to four deep processing device centrifugal compressor of butadiene carbon of the invention below
Parameter is further described.
1 100 ten thousand tons/year of continuous reformer centrifugal compressors of embodiment
The present embodiment 1 is two sections of seven grades of centrifugal compressors of horizonally split, and impeller diameter 450mm, blade is using rear curved
Structure, impeller diameter ratio D1/D2=1.14 (D0/D2), first segment polytropic efficiency reaches as high as 82.9% under declared working condition, and second segment is more
Become efficiency and reaches as high as 77.8%.
2 10 ten thousand tons/year of Polycarbonate Project nitrogen centrifugal compressors of embodiment
The present embodiment 2 is two sections of eight grades of centrifugal compressors of horizonally split, and impeller diameter 400mm, blade is using rear curved
Structure, impeller diameter ratio D1/D2=1.09 (D0/D2), first segment polytropic efficiency reaches as high as 74% under declared working condition, and second segment is changeable
Efficiency reaches as high as 74%.
3 10 ten thousand tons/year of technical octane device centrifugal compressors of embodiment
Two sections of eight grades of centrifugal compressors of 3 horizonally split of the present embodiment, impeller diameter 600mm, blade use rear kinking
Structure, impeller diameter ratio D1/D2=0.84 (D0/D2), first segment polytropic efficiency reaches as high as 82% under nominal situation, and second segment is changeable
Efficiency reaches as high as 76.3%.
The present invention does not limit to above-mentioned a embodiment, and for those skilled in the art, form of the invention can be done
Corresponding change and modification, all change and modification within the spirit and principles in the present invention are regarded as comprising the present invention
Scope of the claimed protection within.
Claims (2)
1. a kind of four deep processing project centrifugal compressor of butadiene carbon, mainly by stator pack (casing, partition, balancing frame sealing,
Mouth circle sealing, end cap etc.), it is rotor set (main shaft, impeller, spacer, balancing frame etc.), bearing group (spring bearing, thrust bearing), dry
The composition such as hermetic seal, it is characterised in that：
(1) compressor possesses two sections of inlet and outlet, and uses horizontally split construction；
(2) compressor has seven or eight impellers, impeller diameter areImpeller all uses backward bent vane formula
Impeller；
(3) partitions at different levels match fixation with the seam allowance on casing；
(4) spring bearing uses tilting-pad bearing, uses the identical structure in two sides, thrust bearing Jin Sibailei in main shaft two sides
Type；
(5) carry out balancing axial thrust in the high side installation balancing frame of pressure.
2. four deep processing project centrifugal compressor of butadiene carbon according to claim 1, it is characterised in that described compression
The preferred impeller diameter ratio of machine impeller is D1/D2=(0.84~1.14) (D0/D2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099513.7A CN108869335A (en) | 2018-09-20 | 2018-09-20 | A kind of four deep processing device centrifugal compressor of butadiene carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099513.7A CN108869335A (en) | 2018-09-20 | 2018-09-20 | A kind of four deep processing device centrifugal compressor of butadiene carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869335A true CN108869335A (en) | 2018-11-23 |
Family
ID=64324628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099513.7A Pending CN108869335A (en) | 2018-09-20 | 2018-09-20 | A kind of four deep processing device centrifugal compressor of butadiene carbon |
Country Status (1)
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|---|---|
| CN (1) | CN108869335A (en) |
Cited By (1)
| 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 |
-
2018
- 2018-09-20 CN CN201811099513.7A patent/CN108869335A/en active Pending
Cited By (1)
| 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 |
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