CN100497949C - High voltage little flow rate chlorine compressor - Google Patents
High voltage little flow rate chlorine compressor Download PDFInfo
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- CN100497949C CN100497949C CNB2006101552832A CN200610155283A CN100497949C CN 100497949 C CN100497949 C CN 100497949C CN B2006101552832 A CNB2006101552832 A CN B2006101552832A CN 200610155283 A CN200610155283 A CN 200610155283A CN 100497949 C CN100497949 C CN 100497949C
- Authority
- CN
- China
- Prior art keywords
- chlorine
- flow rate
- shaft
- high speed
- labyrinth
- Prior art date
- 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.)
- Expired - Fee Related
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- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 title claims abstract description 51
- 229910052801 chlorine Inorganic materials 0.000 title claims abstract description 51
- 239000000460 chlorine Substances 0.000 title claims abstract description 51
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 35
- 229910052757 nitrogen Inorganic materials 0.000 claims description 18
- 238000005096 rolling process Methods 0.000 claims description 10
- 210000004907 gland Anatomy 0.000 claims description 9
- 230000008878 coupling Effects 0.000 claims description 5
- 238000010168 coupling process Methods 0.000 claims description 5
- 238000005859 coupling reaction Methods 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000003921 oil Substances 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 3
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 235000017168 chlorine Nutrition 0.000 description 45
- 238000000034 method Methods 0.000 description 18
- KZBUYRJDOAKODT-UHFFFAOYSA-N Chlorine Chemical compound ClCl KZBUYRJDOAKODT-UHFFFAOYSA-N 0.000 description 14
- 238000004519 manufacturing process Methods 0.000 description 13
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 9
- 239000000446 fuel Substances 0.000 description 7
- 230000008569 process Effects 0.000 description 5
- 239000003513 alkali Substances 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 235000011121 sodium hydroxide Nutrition 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 125000001309 chloro group Chemical class Cl* 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- XWCDCDSDNJVCLO-UHFFFAOYSA-N Chlorofluoromethane Chemical compound FCCl XWCDCDSDNJVCLO-UHFFFAOYSA-N 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The high pressure small flow rate chlorine compressor has motor connected through coupler to two-stage speed-increasing gears, high speed shaft extending beyond the drive gear box with labyrinth sealer, and the first stage impeller and the second stage impeller mounted separately on two ends of the high speed shaft. The labyrinth sealer is one four-section labyrinth sealer and has five cavities set successively in the volute. The present invention has integral gear box with small modulus spur gear two-stage driving, four-section labyrinth sealer to ensure chlorine purity and avoid leakage, well oiled bearings for intermediate shaft for excellent lubrication and heat dissipation, reduced lubricating oil joints to ensure reliable oil supply. The present invention has rotation speed over 35,000 rpm to reach small flow rate and high efficiency.
Description
Technical field
The present invention relates to centrifugal compressor, especially relate to and be used for a kind of high voltage little flow rate chlorine compressor that the high-pressure process flow process is produced liquid chlorine.
Background technique
Chlorine is in industrial purposes and extensive, and factory's (or device) of factory of production chlorine (or device) and use chlorine is not often at a place, the unable again ability of producing chlorine of providing for oneself of the factory of many use chlorine, therefore, must be the chlorine pressurized cooling fluidization, pack into tank car or steel cylinder are so that be transported to user's use.Chlor-alkali factory itself simultaneously, also because the imbalance that the downstream produces with the chlorine device product, the chlorine that electrolytic bath need be produced continuously, part liquefaction is stored, with the balanced production of adjusting chemical industry.
China's caustic soda production was 5,500,000 tons in 2000, increased to 1,250 ten thousand tons in 2005, and the expectation production capacity was 1,850 ten thousand tons in 2006.Modern 1,250 ten thousand tons of caustic soda with 2005 calculate, and produce chlorine simultaneously and are about 1,100 ten thousand tons.According to statistics, ten thousand tons of the 300-400 of having an appointment, promptly the chlorine of 30-35% needs liquefaction, and as the needs of commodity selling or factory self balanced production, so the production scale amount of liquid chlorine is very big.
Because chlorine is easy to liquefaction, chlorine suitably to be pressurizeed, cooling simultaneously gets final product, and the method for producing liquid chlorine at present both at home and abroad has three kinds, that is:
1, low-temp low-pressure method, this method manufacturing equipment is many, the energy consumption height, the most of factories of China adopt this method.
2, medium temperature and medium pressure method, this method are the liquifying method of external common employing, it be with fluorine Lyons as refrigeration agent, seriously polluted with chlorofluoromethane refrigerant but according to international environment environmental law regulation, so will progressively eliminate.
3, high temperature and high pressure method, this method energy consumption is minimum, pollution-free, and economic benefit is the highest in above-mentioned three kinds of methods, but the design of manufacturing mechanism and manufacture difficulty are bigger.
High temperature and high pressure method is produced liquid chlorine, must be compressed to chlorine more than the 1.0Mpa, with about 30-35 ℃ circulating water cooling, does not need chiller plant again, i.e. liquefaction becomes liquid chlorine.The external at present equipment of producing high pressure chlorine has:
1, liquid-ring high pressure compressor, China has the man factories of number such as chemical plant, Qiqihar, aerospace chemical plant, Henan and introduces, and throughput is 20,000 tons of/year liquid chlorines.This machine needs the concentrated sulphuric scid to do circulation, and compressor efficiency is lower than 30%, power of motor 220KW, simultaneously many sulfate pollution things.
2, reciprocal compressor, Japan once produced this series products, though reciprocal compressor power height, easily damaged parts is many, sealing difficulty is big, the Cost of repair and maintenance height, therefore investment, does not obtain user's approval than higher yet.
3, centrifugal compressor has how tame factory that this product is arranged abroad, and its characteristics are:
1. flow is bigger, as has the German KK﹠amp of more than 40 year manufacturing chlorine gas compressor; K group is from outlet pressure 11.8-12.03bar (A) the chlorine press that 1981-2004 produced, and flow is 5627-7774NM
3/ h (being equivalent to caustic soda production is ten thousand tons/year of 15-20).
2. structure is the single-shaft multi-stage impeller.
3. suction pressure is normal pressure (being electric groove outlet pressure), so compressor pressure ratios is big, and impeller quantity is many, the chlorine gas compressor of some factory, impeller quantity even 6-8 section nearly.
In view of this high pressure centrifugal chlorine press only is applicable to integrated mill's (more than 150,000 tons) abroad, have only integrated mill just to adopt the high temperature and high pressure method flow process to produce liquid chlorine, and medium-sized factory (below 150,000 tons) produces liquid chlorine, can only use the medium temperature and medium pressure method.The characteristics of China's chlor-alkali industry, most chlor-alkali plant itself is all produced and is used chlorine products, has only sub-fraction need be prepared into liquid chlorine.At home, also chlorine is not compressed to the equipment of 1.2Mpa at present, the high pressure centrifugal chlorine gas compressor of small capacity also is blank abroad.Therefore, the domestic user needs China's machinery industry can provide small capacity voluntarily, high efficiency high pressure chlorine gas compressor.
Summary of the invention
The object of the present invention is to provide a kind of high voltage little flow rate chlorine compressor.
The technical solution adopted for the present invention to solve the technical problems is:
Motor is connected with the input shaft of driving gearbox by coupling, gearwheel on the input shaft is by the gear two-stage speedup on the jack shaft, with the pinion on the high speed shaft, stretch out on the outer high speed shaft of driving gearbox the identical labyrinth gland of structure is set respectively after, first order impeller and second level impeller respectively are installed at the high speed shaft two ends.Described labyrinth gland is that four sections labyrinth glands are to be provided with five chambers successively on the volute outside on the high speed shaft at two ends outside driving gearbox, and first chamber is the nitrogen exhaust port; Second chamber be nitrogen inlet behind valve, be communicated with dry nitrogen; The 3rd chamber is nitrogen and chlorine mixing exhaust port, and the 4th chamber is to lead to first order impeller inlet after first order impeller, the second level impeller parallel connection; The 5th chamber is the both stage impellers back side.
The bearing of described high speed shaft is a watt dynamic pressure radially thrust joint bearing that slides that can incline; The bearing of jack shaft is rolling ball bearing with the two bearings in parallel of input shaft.
On described driving gearbox wall thickness, have inflow pipeline and duct, have the circular groove with hole link on the outer circular hole of the two bearings in parallel of jack shaft, the inboard, outer ring of two rolling bearings, grinding goes out groove, and groove number is uniformly distributed along the circumference 3～4.
It is 1.5 gear that described gear is straight-tooth, modulus m.
The beneficial effect that the present invention has is:
1, for adapting to the high efficiency requirement of small flow, the rotating speed of chlorine compressor is brought up to more than 35000 rev/mins.
2, be that overall gear is box on the structure, adopt the transmission of little modulus spur gear twin-stage.
3, be the inlet pressure of this machine with existing chlorine press of present each chlor-alkali plant or Nahsi delivery side of pump pressure, therefore only need two stage compression, thereby make the simple in structure of high pressure centrifugal compressor that manufacturing expense reduces greatly.
4, the axle envelope adopts four sections broach labyrinth sealings, has guaranteed the purity of chlorine and has effectively prevented leaking outside of chlorine.
5, the bearing of input shaft and jack shaft adopts paired angular contact bearing, and at the middle fuel feeding of matched bearings, guaranteeing need near the Lubrication of Rolling Contact Bearing and the heat radiation of limit speed.
6, lubricating oil pipeline directly processes on gearbox wall, reduces general joint with the oil pipe fuel feeding, guarantees that fuel feeding is reliable.
Description of drawings
Fig. 1 is a structural principle schematic representation of the present invention;
Fig. 2 is four sections labyrinth gland structural principle schematic representation of the present invention;
Fig. 3 is a midship shaft bearing fuel system structural principle schematic representation of the present invention.
Among the figure: 1, motor, 2, coupling, 3, driving gearbox, 4, input shaft, 5, gearwheel, 6, jack shaft, 7, high speed shaft, 8, small gear, 9, first order impeller, 10, second level impeller, 11, first order mouth, 12, first order Diffuser, 13, volute, 14, outer pipe, 15, second level inlet, 16, second level outer pipe, 17, nitrogen inlet, 18, nitrogen and chlorine mixing exhaust port, 19, one-level import, 20 are led in one secondary parallel connection, the nitrogen exhaust port, 21, bearing, 22, bearing, 23, bearing, 24, the end seal ring, 25, packing ring, 26, the duct, 27, circular groove, 28, groove, 29, inflow pipeline.
Embodiment
The invention will be further described below in conjunction with drawings and Examples.
As shown in Figure 1, motor 1 of the present invention is connected with the input shaft 4 of driving gearbox 3 by coupling 2, gearwheel 5 on the input shaft 4 is by the gear two-stage speedup on the jack shaft 6, with small gear 8 engagements on the high speed shaft 7, stretch out on the outer high speed shaft 7 of driving gearbox 3 four sections identical labyrinth glands of structure are set respectively after, at high speed shaft 7 two ends first order impeller 9 and second level impeller 10 are installed respectively;
As shown in Figure 1, described labyrinth gland is four sections Comb Labyrinth Seals devices, is to be provided with five chamber F, E, D, C and B successively on the volute 13 outside on the high speed shaft 7 at two ends outside driving gearbox 3, and the first chamber F is the nitrogen exhaust port; The second chamber E be nitrogen inlet behind valve, be communicated with dry nitrogen; The 3rd chamber D is nitrogen and chlorine mixing exhaust port, and the 4th cavity C is to lead to first order impeller inlet after first order impeller, the second level impeller parallel connection; The 5th chamber B is the both stage impellers back side.
The bearing 21 of described high speed shaft 7 is watt dynamic pressure of can inclining the radially thrust joint bearing that slides; The bearing 22 of jack shaft 6 is rolling ball bearing with the two bearings in parallel 23 of input shaft 4.
As shown in Figure 3, on described driving gearbox 3 wall thickness, have inflow pipeline 29 and duct 26, have the circular groove 27 that is communicated with duct 26 on the two bearings in parallel 22 outer circular holes of jack shaft 6, the inboard, outer ring of two rolling bearings 22, grinding goes out groove 28, and groove 28 quantity are uniformly distributed along the circumference 3～4.
It is 1.5 gear that described gear is straight-tooth, modulus m.
Machine of the present invention is as shown in Figure 1: motor 1 is by the input shaft 4 of coupling 2 driving gearboxs 3, gearwheel 5 on the input shaft is by the gear two-stage speedup on the jack shaft 6, the two ends of small gear 8 high speed shafts 7 on the driven high-speed axle 7, each installs first order impeller 9 and second level impeller 10, the high speed rotating of impeller (this moment, wheel speed reached 35000-40000 rev/min), chlorine is done work, thereby energy is passed to gas raises the pressure of chlorine, chlorine is supplied with from existing chlorine low pressure turbine or Nahsi pump, this moment, inlet pressure was 0.28-0.32Mpa (A), chlorine enters from first order inlet 11, chlorine enters second level inlet 15 through first order impeller 9 and first order Diffuser 12 volutes 13 again after outer pipe 14 enters interstage cooler (this figure does not represent) cooling, after same impeller continues acting to chlorine, discharge from second level outer pipe 16, this moment, chlorine gas pressure can reach more than the 1.1Mpa (A), promptly reaching just can be with the purpose of chlorine gas liquefaction with the normal temperature tap water, the sealing of chlorine, adopt four sections mazy special constructions, prevent that effectively sealing gas (normally drying nitrogen) from entering the chlorine system, influencing liquefaction efficiency. drying nitrogen enters from 17, the big 0.005-0.01Mpa of pressure of its pressure ratio mixed gas (mixed gas of nitrogen and chlorine) exhaust port 18, from first, the chlorine that the chamber B at the sencond stage impeller back side comes out leads to first order impeller inlet 11 after the cavity C parallel connection, axle envelope principle and structure are please referring to shown in Figure 2.
Among Fig. 1, the bearing of three rotating shafts, the bearing 21 of high speed shaft 7 is watt dynamic pressure of can inclining the radially thrust joint bearing that slides, the bearing 22 of jack shaft 6 is rolling ball bearing with the bearing 23 of input shaft 4, because the limit speed that the working speed of jack shaft has allowed near rolling bearing, the present invention has adopted special fuel system, as shown in Figure 3, pressure lubrication oil is entered by duct 26 in the circular groove 27 at bearing top circle place, and in the inboard, outer ring of two rolling bearings that are installed in parallel, grinding goes out area and is about 1MM
2Groove 28 groove number along garden Zhou Junbu 3-4, this fuel system guarantees lubricatedly fully and effectively bearing to be lubricated and to cool off, and guarantees the working life of bearing.The inflow pipeline of lubricant oil of the present invention is directly to process on the gear-box wall thickness, reduces many oil connections, thereby has guaranteed the reliability of fuel feeding, inflow pipeline 29 as shown in Figure 3.Friction generates heat and cause the danger (notes: if the temperature of iron and steel is above 260 ℃ that catch fire during for fear of rotor and stator rotation unstability, in the environment of chlorine, the burning of meeting spontaneous reaction), to with the very little end seal ring 24 in impeller end clearance and with very little packing ring 25 its materials between centers crack for filling PTFE, when rotating contact, fill tetrafluoro and be easy to abrade and come off, can not produce bigger heat.
Performance parameter of the present invention is:
Throughput: produce 2.5 ten thousand tons of liquid chlorines per year
Chlorine inlet pressure: 〉=0.28Mpa (A)
Chlorine inlet temperature :≤40 ℃
Chlorine outlet pressure: 1.2Mpa (A)
Spindle speed: 36500 rev/mins
Air horsepower: 85.2KW
Power of motor: 110KW
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, in the protection domain of spirit of the present invention and claim, and any modification and change that the present invention is made. all fall into protection scope of the present invention.
Claims (4)
1. high voltage little flow rate chlorine compressor, motor (1) is connected with the input shaft (4) of driving gearbox (3) by coupling (2), gearwheel (5) on the input shaft (4) is by the gear two-stage speedup on the jack shaft (6), with small gear (8) engagement on the high speed shaft (7), stretch out on the outer high speed shaft (7) of driving gearbox (3) the identical labyrinth gland of structure is set respectively after, at high speed shaft (7) two ends first order impeller (9) and second level impeller (10) are installed respectively; It is characterized in that: described labyrinth gland is four sections labyrinth glands, be that the high speed shaft (7) at two ends outside driving gearbox (3) is gone up on the outside volute (13) and is provided with five chambers (F, E, D, C and B) successively, first chamber (F) is the nitrogen exhaust port; Second chamber (E) be nitrogen inlet behind valve, be communicated with dry nitrogen; The 3rd chamber (D) is nitrogen and chlorine mixing exhaust port, and the 4th chamber (C) is to lead to first order impeller inlet after first order impeller, the second level impeller parallel connection; The 5th chamber (B) is the both stage impellers back side.
2. high voltage little flow rate chlorine compressor according to claim 1 is characterized in that: the bearing (21) of described high speed shaft (7) is a watt dynamic pressure radially thrust joint bearing that slides that can incline; The bearing (22) of jack shaft (6) is rolling ball bearing with the two bearings in parallel (23) of input shaft (4).
3. high voltage little flow rate chlorine compressor according to claim 1, it is characterized in that: on described driving gearbox (3) wall thickness, have inflow pipeline (29) and duct (26), have the circular groove (27) that is communicated with duct (26) on the outer circular hole of two bearings in parallel (22) of jack shaft (6), the inboard, outer ring of two rolling bearings (22), grinding goes out groove (28), and groove (28) quantity is uniformly distributed along the circumference 3～4.
4. high voltage little flow rate chlorine compressor according to claim 1 is characterized in that: it is 1.5 gear that described gear is straight-tooth, modulus m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101552832A CN100497949C (en) | 2006-12-18 | 2006-12-18 | High voltage little flow rate chlorine compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101552832A CN100497949C (en) | 2006-12-18 | 2006-12-18 | High voltage little flow rate chlorine compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101000059A CN101000059A (en) | 2007-07-18 |
| CN100497949C true CN100497949C (en) | 2009-06-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101552832A Expired - Fee Related CN100497949C (en) | 2006-12-18 | 2006-12-18 | High voltage little flow rate chlorine compressor |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606500A (en) * | 2012-04-11 | 2012-07-25 | 上海飞和压缩机制造有限公司 | Aerotechnical air-concentrated high-yield air compressor with stepped shell and helical blade |
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| KR20110082356A (en) * | 2010-01-11 | 2011-07-19 | 엘지전자 주식회사 | Turbo compressor and its assembly method |
| CN102086919B (en) * | 2010-12-15 | 2012-12-26 | 杭州南方通达齿轮有限公司 | Speed increasing box for compressor |
| CN103498804A (en) * | 2013-10-01 | 2014-01-08 | 湖北双剑鼓风机股份有限公司 | Efficient gear combined type compressor |
| CN106837848B (en) * | 2016-12-30 | 2023-03-14 | 广西玉柴机器股份有限公司 | Fan shaft assembly |
| EP3450784B1 (en) * | 2017-09-01 | 2021-03-10 | Siemens Mobility GmbH | Plug coupling for drives |
| CN111828346B (en) * | 2019-04-22 | 2022-08-05 | 复盛实业(上海)有限公司 | Centrifugal air compressor |
| CN114352550A (en) * | 2022-01-11 | 2022-04-15 | 临海市顺源机械有限公司 | Sealing structure and sealing method of centrifugal turbine compressor |
| CN114876856A (en) * | 2022-06-07 | 2022-08-09 | 上海齐耀动力技术有限公司 | Supercritical carbon dioxide compressor sealing system and compressor |
| CN115523163A (en) * | 2022-09-28 | 2022-12-27 | 哈电发电设备国家工程研究中心有限公司 | 15MW trans-critical CO 2 Centrifugal compressor |
-
2006
- 2006-12-18 CN CNB2006101552832A patent/CN100497949C/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102606500A (en) * | 2012-04-11 | 2012-07-25 | 上海飞和压缩机制造有限公司 | Aerotechnical air-concentrated high-yield air compressor with stepped shell and helical blade |
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| CN101000059A (en) | 2007-07-18 |
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Denomination of invention: High voltage little flow rate chlorine compressor Effective date of registration: 20140822 Granted publication date: 20090610 Pledgee: Zhang Jie Pledgor: HANGZHOU QIUSHI TURBINE MANUFACTURING Co.,Ltd.|Zhou Guoqiang|Zhou Yin Registration number: 2014330000027 |
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