CN106635151A - Combined centrifugal compressor for continuous catalytic reforming units - Google Patents
Combined centrifugal compressor for continuous catalytic reforming units Download PDFInfo
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- CN106635151A CN106635151A CN201710081076.5A CN201710081076A CN106635151A CN 106635151 A CN106635151 A CN 106635151A CN 201710081076 A CN201710081076 A CN 201710081076A CN 106635151 A CN106635151 A CN 106635151A
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- Prior art keywords
- compressor
- centrifugal compressor
- pressure cylinder
- impeller
- compression ratio
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Classifications
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
- C10G59/00—Treatment of naphtha by two or more reforming processes only or by at least one reforming process and at least one process which does not substantially change the boiling range of the naphtha
- C10G59/02—Treatment of naphtha by two or more reforming processes only or by at least one reforming process and at least one process which does not substantially change the boiling range of the naphtha plural serial stages only
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- Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to a combined centrifugal compressor for continuous catalytic reforming units. Each compressor comprises a spindle, impellers, diaphragms, a coupling, a diffuser, an upper casing, a lower casing, a sealing assembly, and bearings. The combined centrifugal compressor is characterized in that (1) the combined centrifugal compressor is of a tandem structure of a high-pressure cylinder compressor, a medium-pressure cylinder compressor and a low-pressure cylinder compressor; (2) each of the three compressors adopts a vertically split structure; (3) the impellers of each compressor adopt a string of sequentially mounted enclosed impellers with the same external diameter, and each stage of impeller is provided with an impeller cover for sealing, adopts hot assembly with the spindle, and is provided with a corresponding spindle sleeve for positioning; (4) the overall compression ratio of each compressor is 1.73 to 2.29. The combined centrifugal compressor for the continuous catalytic reforming units is adopted by a number of large petrochemical enterprises, and after stably operating for a period of time, the combined centrifugal compressor achieves an ideal technical effect, and also creates better economic benefit, gaining the unanimous praise of customers.
Description
Technical field
The present invention relates to the hydro carbons CONTINUOUS REFORMER technical field of oil secondary operation, is specifically provided as hydro carbons CONTINUOUS REFORMER dress
The centrifugal compressor put.
Background technology
Using moving-burden bed reactor continuous regenerative reforming, referred to as CONTINUOUS REFORMER.It is with low-octane straight run stone
Cerebrol, hydrotreated naphtha etc. are raw material, using Pt-Sn bimetallic catalysts, at a high temperature of 500 DEG C or so, molecule occur
Reset, isomery, increase the yield of aromatic hydrocarbons to improve the technology of octane number.
Existing industrialized continuous reforming process, according to the mode of movement of catalyst, is commonly divided into " following current " and " inverse
Two kinds of stream ", " following current " refers to that " movement " direction of catalyst between each reactor is consistent with reaction mass；And " adverse current " is then
Refer to that " movement " direction of catalyst between each reactor is contrary with reaction mass.Either " following current " and " adverse current " CONTINUOUS REFORMER
Technique, circulation conveying of the catalyst between reactor is all to take the mode of series connection.Its device is all included：One regeneration is urged
Agent is reprocessed and distribution system (RCTS) and a reclaimable catalyst reprocessing and distribution system (WCTS).Correspondingly, also
Need regenerated catalyst and lift blower fan and reclaimable catalyst lifting blower fan respectively to the power of two systems offer conveying.
Chinese utility model patent CN201420266215.3 discloses one kind《Continuous reformer pump》, its impeller is
Double-entry impeller and the arrangement connected using both stage impellers.As pointing out in its specification and summary, the stream that it has
The characteristics of amount is little, rotating speed is low.
In Chinese utility model 201521082853.0 and 201521082405.0《A kind of hydro carbons continuous reformer》In
Including at least three reforming reactors and at least one catalyst regenerator；And in Chinese utility model patent
201521080902.7 and 201521081842.0《A kind of hydro carbons continuous reformer》In then include at least four reforming reactions
Device and at least one catalyst regenerator.Therefore, it is aforesaid《Card device pump in continuous》, it is clear that just can not meet their techniques
Requirement.
Present invention aim to provide a kind of large-scale industrial production of being suitable for《Continuous reformer with from
Heart compressor》, on the basis of fully investigation, the applicant successively designs, it is various for continuous reforming process application to have manufactured
Centrifugal compressor, meets well the requirement of petroleum chemical enterprise.
The content of the invention
It is an object of the invention to provide it is a kind of with compression ratio it is high, quantity of gas leakage is little the features such as CONTINUOUS REFORMER dress
Put with compressor is combined, it, with being combined into, is suitable for CONTINUOUS REFORMER by the series connection of high pressure cylinder, intermediate pressure cylinder and the compressor of low pressure (LP) cylinder three
Technique large-scale industrial production.
Continuous reformer provided by the present invention combination centrifugal compressor, include per compressor main shaft, impeller, every
Plate, shaft coupling, diffuser, upper casing, lower casing, black box and bearing, it is characterised in that：
(1) centrifugal compressor is combined by high pressure cylinder, intermediate pressure cylinder and the compressor cascaded structure of low pressure (LP) cylinder three；
(2) three compressors adopt vertical subdivision structure；
(3) using a string suitable dress double shrouded wheels of external diameter identical, every grade of impeller is equipped with wheel to the impeller per compressor
Cover seal, is matched somebody with somebody with main shaft using hot charging, and is provided with corresponding axle sleeve and is positioned；
(4) the whole machine compression ratio of each compressor is 1.73～2.11.
The CONTINUOUS REFORMER of present invention combination centrifugal compressor, for the compressor of high pressure cylinder, its preferred compression is：
1.73。
The CONTINUOUS REFORMER of present invention combination centrifugal compressor, for the compressor of intermediate pressure cylinder, its preferred compression is：
2.01。
The CONTINUOUS REFORMER of present invention combination centrifugal compressor, for the compressor of low pressure (LP) cylinder, its preferred compression is：
2.29。
The CONTINUOUS REFORMER of the present invention selects same outer diameter impeller with combination centrifugal compressor, is realizing that continuous reforming process will
On the premise of pressure needed for the circulation power asked.Compressor design production cost is reduced, the production cycle of equipment is shortened.
The CONTINUOUS REFORMER combination centrifugal compressor of the present invention is provided with wheel cap using vertical subdivision form, every grade of impeller front
Sealing, compressor two ends are provided with the structures such as shaft end seal, dry gas seals, and such design not only reduces the leakage of gas medium
Amount, reduces the pressure loss, improves reduced overall engine efficiency, while reducing the possibility of security incident generation.
Description of the drawings
Fig. 1 be the utility model centrifugal compressor front view profile, 1 impeller；2 main shafts；3 bearings；4 shaft end seals；5、6
Dry gas seals；7 enter air duct；8 chimney fans；9 casing cylinders；10 dividing plates；11 shaft couplings.
Fig. 2 is continuous reformer Systems of Centrifugal Compressor Unit device arrangement form and series system, 12 low pressure cylinder compressors；
13 steam turbines；14 high pressure cylinder compressors；15 intermediate pressure cylinder compressors.
Specific embodiment
Below in conjunction with the accompanying drawings further supplement and explanation is made with centrifugal compressor to the CONTINUOUS REFORMER of the present invention.
As shown in figure 1, processing all of part, impeller 1 respectively according to the design drawing of centrifugal compressor；Main shaft 2；Axle
Hold 3；Shaft end seal 4；Dry gas seals 5,6；7 enter air duct 7；8 chimney fans 8；Casing cylinder 9；Dividing plate 10；Shaft coupling 11.And sequentially
Part is assembled, the centrifugal compressor of different compression ratios is just constituted, as shown in Fig. 2 again by low pressure cylinder compressor 12, steamer
Machine 13, high pressure cylinder compressor 14, the compressor of intermediate pressure cylinder press 15 3 becomes CONTINUOUS REFORMER dress together with the tandem compound of steam turbine 13
Put the combination centrifugal compressor that circulation power is provided.
Just illustrated with specific embodiment below for the different continuous reforming process large-scale industrial production of annual production
Supporting continuous reformer combination centrifugal compressor.
1 120 ten thousand tons/year of continuous reformers of embodiment combination centrifugal compressor
1200000 tons/year of CONTINUOUS REFORMER high pressure cylinder centrifugal compressors, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 1.73.
1200000 tons/year of CONTINUOUS REFORMER intermediate pressure cylinder centrifugal compressors, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.01.
1200000 tons/year of CONTINUOUS REFORMER low pressure (LP) cylinder centrifugal compressors, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.29.
2 100 ten thousand tons/year of continuous reformer centrifugal compressors of embodiment
1000000 tons/year of CONTINUOUS REFORMER centrifugal compressor high pressure cylinders, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Realize that compression ratio is 1.73.
1000000 tons/year of CONTINUOUS REFORMER centrifugal compressor intermediate pressure cylinders, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.01.
1000000 tons/year of CONTINUOUS REFORMER centrifugal compressor low pressure (LP) cylinders, are adopted using vertical subdivision form, seven impellers
External diameter for 700mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.29.
3 150 ten thousand tons/year of continuous reformer centrifugal compressors of embodiment
1500000 tons/year of CONTINUOUS REFORMER centrifugal compressor high pressure cylinders, are adopted using vertical subdivision form, ten impellers
External diameter for 400mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 1.73.
1500000 tons/year of CONTINUOUS REFORMER centrifugal compressor intermediate pressure cylinders, are adopted using vertical subdivision form, seven impellers
External diameter for 400mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.01.
1500000 tons/year of CONTINUOUS REFORMER centrifugal compressor low pressure (LP) cylinders, are adopted using vertical subdivision form, eight impellers
External diameter for 400mm double shrouded wheel, every grade of impeller front is provided with wheel cover seal, that compressor two ends are provided with shaft end seal, dry gas is close
The structures such as envelope.Whole machine compression ratio is 2.29.
. after same user has signed technical know-how agreement, the artificial many Large Scale Petrochemical Enterprises of application of this patent
CONTINUOUS REFORMER production line provides various different scales CONTINUOUS REFORMERs combination centrifugal compressor, through the stable fortune of a period of time
Turn, achieve very good technique effect, also createed more preferable economic benefit, obtain the consistent favorable comment of users.
Claims (4)
1. continuous reformer combination centrifugal compressor, main shaft, impeller, dividing plate, shaft coupling, diffusion are included per compressor
Device, upper casing, lower casing, black box and bearing, it is characterised in that：
(1) centrifugal compressor is combined by high pressure cylinder, intermediate pressure cylinder and the compressor cascaded structure of low pressure (LP) cylinder three；
(2) three compressors adopt vertical subdivision structure；
(3) impeller per compressor is using a string of external diameter identical along dress double shrouded wheels, and it is close that every grade of impeller is equipped with wheel cap
Envelope, is matched somebody with somebody using hot charging with main shaft, and is provided with corresponding axle sleeve and positioned；
(4) the whole machine compression ratio of each compressor is 1.73～2.29.
2. continuous reformer as described in claim 1 combination centrifugal compressor, it is characterised in that described high pressure cylinder from
The whole machine compression ratio preferred value of heart compressor is 1.73.
3. continuous reformer as described in claim 1 combination centrifugal compressor, it is characterised in that described intermediate pressure cylinder from
The whole machine compression ratio preferred value of heart compressor is 2.01.
4. continuous reformer as described in claim 1 combination centrifugal compressor, it is characterised in that described low pressure (LP) cylinder from
The whole machine compression ratio preferred value of heart compressor is 2.29.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081076.5A CN106635151A (en) | 2017-02-15 | 2017-02-15 | Combined centrifugal compressor for continuous catalytic reforming units |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710081076.5A CN106635151A (en) | 2017-02-15 | 2017-02-15 | Combined centrifugal compressor for continuous catalytic reforming units |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106635151A true CN106635151A (en) | 2017-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710081076.5A Pending CN106635151A (en) | 2017-02-15 | 2017-02-15 | Combined centrifugal compressor for continuous catalytic reforming units |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030816A (en) * | 1987-07-23 | 1989-02-01 | 三菱重工业株式会社 | Centrifugal compressor |
| CN103557166A (en) * | 2013-10-15 | 2014-02-05 | 沈阳斯特机械制造有限公司 | Multistage centrifugal compressor |
| WO2016005038A1 (en) * | 2014-07-08 | 2016-01-14 | Linde Aktiengesellschaft | Method for regulating the rotational speed of cryogenic compressors which are connected in series |
| CN205064307U (en) * | 2015-09-28 | 2016-03-02 | 沈阳斯特机械制造有限公司 | Multistage centrifugal compressor of perpendicular split |
| CN206858494U (en) * | 2017-02-15 | 2018-01-09 | 沈阳斯特机械制造有限公司 | Continuous reformer combination centrifugal compressor |
-
2017
- 2017-02-15 CN CN201710081076.5A patent/CN106635151A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030816A (en) * | 1987-07-23 | 1989-02-01 | 三菱重工业株式会社 | Centrifugal compressor |
| CN103557166A (en) * | 2013-10-15 | 2014-02-05 | 沈阳斯特机械制造有限公司 | Multistage centrifugal compressor |
| WO2016005038A1 (en) * | 2014-07-08 | 2016-01-14 | Linde Aktiengesellschaft | Method for regulating the rotational speed of cryogenic compressors which are connected in series |
| CN205064307U (en) * | 2015-09-28 | 2016-03-02 | 沈阳斯特机械制造有限公司 | Multistage centrifugal compressor of perpendicular split |
| CN206858494U (en) * | 2017-02-15 | 2018-01-09 | 沈阳斯特机械制造有限公司 | Continuous reformer combination centrifugal compressor |
Non-Patent Citations (1)
| Title |
|---|
| 郁永章等: "《压缩机工程手册》", 31 January 2012, 中国石化出版社 * |
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Application publication date: 20170510 |