CN106440660A - Air separation device with high-pressure heat exchange and oxygen supply - Google Patents
Air separation device with high-pressure heat exchange and oxygen supply Download PDFInfo
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- CN106440660A CN106440660A CN201610883900.4A CN201610883900A CN106440660A CN 106440660 A CN106440660 A CN 106440660A CN 201610883900 A CN201610883900 A CN 201610883900A CN 106440660 A CN106440660 A CN 106440660A
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04078—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression
- F25J3/0409—Providing pressurised feed air or process streams within or from the air fractionation unit providing pressurized products by liquid compression and vaporisation with cold recovery, i.e. so-called internal compression of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04006—Providing pressurised feed air or process streams within or from the air fractionation unit
- F25J3/04048—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams
- F25J3/04066—Providing pressurised feed air or process streams within or from the air fractionation unit by compression of cold gaseous streams, e.g. intermediate or oxygen enriched (waste) streams of oxygen
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04151—Purification and (pre-)cooling of the feed air; recuperative heat-exchange with product streams
- F25J3/04187—Cooling of the purified feed air by recuperative heat-exchange; Heat-exchange with product streams
- F25J3/04218—Parallel arrangement of the main heat exchange line in cores having different functions, e.g. in low pressure and high pressure cores
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J3/00—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification
- F25J3/02—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream
- F25J3/04—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air
- F25J3/04406—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system
- F25J3/04412—Processes or apparatus for separating the constituents of gaseous or liquefied gaseous mixtures involving the use of liquefaction or solidification by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream for air using a dual pressure main column system in a classical double column flowsheet, i.e. with thermal coupling by a main reboiler-condenser in the bottom of low pressure respectively top of high pressure column
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2210/00—Processes characterised by the type or other details of the feed stream
- F25J2210/40—Air or oxygen enriched air, i.e. generally less than 30mol% of O2
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25J—LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS OR LIQUEFIED GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
- F25J2215/00—Processes characterised by the type or other details of the product stream
- F25J2215/50—Oxygen or special cases, e.g. isotope-mixtures or low purity O2
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Emergency Medicine (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention discloses an air separation device with high-pressure heat exchange and oxygen supply. The air separation device comprises a double-stage rectifying tower and a main heat exchanger; the double-stage rectifying tower includes an upper tower, a lower tower, and a condensation evaporator positioned between the two; the lower part of the lower tower is connected with an air entering tower pipe; the top of the upper tower is connected with a nitrogen exhaust tower pipe; the air entering tower pipe and the nitrogen exhaust tower pipe respectively realize heat exchange through the main heat exchanger; an evaporation size of the condensation evaporator is connected with a liquid oxygen output pipe; the liquid oxygen output pipe is connected with a high-pressure liquid oxygen pump and a high-pressure heat exchanger in sequence; the air entering tower pipe has two parallel branches; one branch passes through the main heat exchanger; and the other branch realizes heat exchange between air and liquid oxygen by a high-heat heat exchanger. The air separation device with high-pressure heat exchange and oxygen supply uses the produced liquid oxygen for exchanging with the entering tower air through the high-pressure heat exchanger to obtain normal-temperature and high-pressure oxygen after compression by the high-pressure liquid oxygen pump, and meanwhile, enables the entering tower air to obtain cold recovery and stops outputting of low-pressure oxygen to achieve the purposes of reducing the oxygen compressor investment and energy consumption and the maintenance cost.
Description
Technical field
The invention belongs to air separation unit technique field, refers in particular to a kind of air separation unit with high pressure heat exchange oxygen supply.
Background technology
At present, general oxygen generating plant technique is after tower oxygen extracted out through board-like re-heat, enters back into high pressure oxygen compressor pressure
Bottle (circuits of 1 chain lines of accompanying drawing) is filled in contracting, and the increase and decrease for meeting bottle tolerance also needs 1 operative employee's operation startup-shutdown, oxygen compressor
Power consumption and cost of overhaul height, and safety is low, equipment adjusts the inferior position such as dumb.
Content of the invention
It is an object of the invention to provide a kind of air separation unit with high pressure heat exchange oxygen supply, using output liquid oxygen through high pressure
Liquid oxygen pump compresses, and obtains normal temperature high voltage oxygen by high pressure heat exchanger with tower air exchange is entered, while making to obtain into tower air cold
Amount is reclaimed and stops the output of low oxygen, reduces the input of oxygen compressor and its mesh of energy consumption and maintenance cost to reach
's.
The object of the present invention is achieved like this：A kind of air separation unit with high pressure heat exchange oxygen supply, including twin-stage rectification
Tower, main heat exchanger, double rectification column includes Shang Ta, lower tower and positioned at condenser/evaporator between the two, and Xia Ta bottom is connected with sky
Gas enters tower tube road, and upper top of tower is connected with nitrogen and goes out tower tube road, and air enters tower tube road and nitrogen goes out tower tube road respectively through main heat exchange
Heat exchange realized by device, it is characterised in that：The evaporation side of condenser/evaporator is connected with liquid oxygen output channel, on liquid oxygen output channel successively
High Pressure Liquid Oxygen Pump and high pressure heat exchanger is connected with, the air enters tower tube road and has two branch roads in parallel, and a branch road is through institute
Main heat exchanger is stated, the heat exchange of air and liquid oxygen realized by another branch road through the high heat exchanger.
Preferably, the Xia Ta lower end is connected with liquid air pipeline, and the liquid air pipeline other end is connected to tower top, liquid air pipeline
Liquid air heat exchanger is provided with, the nitrogen goes out tower tube road through liquid air heat exchanger.
Preferably, the condensation side of the condenser/evaporator is connected with liquid nitrogen pipes, and liquid nitrogen pipes connect through liquid air heat exchanger
Supreme top of tower.
Preferably, it is rectifying section that the upper tower goes out between tower tube pipeline joint and liquid air pipe joint in nitrogen, liquid air pipeline
It is stripping section under interface, rectifying section is connected with dirty nitrogen and goes out tower tube road, dirty nitrogen goes out that tower tube road sequentially passes through liquid air heat exchanger and master changes
Hot device.
Preferably, the high pressure heat exchanger is high pressure wound tube heat exchanger.
The present invention is prominent and beneficial compared to existing technology to be had the technical effect that：
1st, the power of an oxygen compressor is saved significantly in seventy or eighty kilowatts, just more than ten kilowatts of the power of a liquid pump
Energy consumption is saved, power consumption can save 250KW per hour；
2nd, oxygen liquid and gaseous volume ratio are 1：800 or so, therefore, under same case, when conveying same amount of oxygen,
Compressor needs more number of units, and conveys liquid oxygen, only needs a High Pressure Liquid Oxygen Pump, not only power and energy saving, and reduces
The equipment investment of compressor and corresponding personnel depaly, maintenance amount；Liquid pump can also pass through remote control, using more square
Just；
3rd, after the upper tower oxygen of traditional liquid oxygen generating plant technique is extracted out through board-like re-heat, entrance is low oxygen conveying
Pipeline, when oxygen compressor is compressed, easily entrains the foreign gas in the external world to low oxygen；Therefore using the liquid oxygen of high pressure
Output channel, beneficial to raising oxygen purity.
Description of the drawings
Fig. 1 is the structure principle chart of the present invention.
Description of the drawings：1st, liquid oxygen output channel；2nd, air enters tower tube road；3rd, dirty nitrogen goes out tower tube road；4th, nitrogen goes out tower tube road；
5th, liquid air pipeline；6th, liquid nitrogen pipes；C1, Xia Ta；C2, Shang Ta；K, condenser/evaporator；E1, main heat exchanger；E2, liquid air heat exchanger；
E3, high pressure heat exchanger；OP1, High Pressure Liquid Oxygen Pump；OC1, high pressure oxygen compressor.
Specific embodiment
With specific embodiment, the invention will be further described below in conjunction with the accompanying drawings, referring to Fig. 1：
A kind of air separation unit with high pressure heat exchange oxygen supply, including double rectification column, main heat exchanger E1, double rectification column bag
Include tower C2, lower tower C1 and positioned at condenser/evaporator K between the two, lower tower C1 bottom is connected with air and enters tower tube road 2, upper tower C2
Top is connected with nitrogen and goes out tower tube road 4, and air enters tower tube road 2 and nitrogen goes out tower tube road 4 and realizes heat friendship respectively through main heat exchanger E1
Change, the evaporation side of condenser/evaporator K is connected with liquid oxygen output channel 1, is sequentially connected with High Pressure Liquid Oxygen Pump OP1 on liquid oxygen output channel 1
With high pressure heat exchanger E3, air enters tower tube road 2 and has two in parallel branch roads, a branch road through main heat exchanger E1, another
The heat exchange of air and liquid oxygen realized by branch road through hyperthermia wound tube heat exchanger.
Wherein, lower tower C1 lower end is connected with liquid air pipeline 5, and 5 other end of liquid air pipeline is connected to tower C2 top, liquid air pipeline
5 are provided with liquid air heat exchanger E2, and the nitrogen goes out tower tube road 4 through liquid air heat exchanger E2.
Wherein, the condensation side of condenser/evaporator K is connected with liquid nitrogen pipes 6, and liquid nitrogen pipes 6 through liquid air heat exchanger E2 and connect
Supreme tower C2 top.
The specific workflow of this programme is as follows：
1st, air enters the suction of tower tube road 2 air, and two branch roads respectively enter high pressure wound tube heat exchanger and main heat exchanger E1
So that entering tower air cold recovery is obtained, preliminary pre-cooling is realized；
2nd, two air passage enter lower tower C1 bottom after merging, and are condensed into liquid air, are steamed according to air each component
The difference of temperature is sent out, air carries out separating for the first time in lower tower C1, nitrogen relatively low for boiling point is separated from liquid air, lower tower
Oxygen-enriched liquid air is formed on C1 bottom, and gaseous nitrogen atmosphere rises, and forms liquid nitrogen in the condensation side of condenser/evaporator K；
3rd, the oxygen-enriched liquid air of lower tower C1 bottom is delivered to upper tower C2 rectification through liquid air pipeline 5, to obtain pure oxygen and purity nitrogen；On
Tower C2 is divided into two sections, and with liquid air charging aperture as boundary, top is rectifying section, rectification uprising gas, reclaims oxygen component, and purification nitrogen is pure
Degree, rectifying section is connected with dirty nitrogen and goes out tower tube road 3；Hypomere is stripping section, by the nitrogen Component seperation in liquid out, improves the oxygen of liquid
Purity；
4th, the liquid nitrogen of condenser/evaporator K condensation side passes to the rectifying section of upper tower C2 through liquid nitrogen pipes 6, purifies nitrogen further
Gas；The nitrogen at upper tower C2 top goes out tower tube road 4, dirty nitrogen and goes out tower tube road 3, liquid air pipeline 5, liquid nitrogen pipes 6 all through liquid air heat exchange
Device E2 so that dirty nitrogen and nitrogen obtain cold recovery；
5th, dirty nitrogen goes out tower tube road 3, nitrogen and goes out tower tube road 4 again through main heat exchanger E1 after liquid air heat exchanger E2, will be cold
Amount transmission feed tower air；
6th, condenser/evaporator K evaporation side liquid oxygen through liquid oxygen output channel 1, High Pressure Liquid Oxygen Pump OP1 by high pressure liquid
Oxygen delivers to high pressure wound tube heat exchanger, enters tower air and liquid oxygen heat exchange, obtains the output of normal temperature high voltage oxygen.
Above-described embodiment is only presently preferred embodiments of the present invention, not limits the scope of the invention according to this, therefore：All according to
The equivalence changes done by the structure, shape of the present invention, principle, all should be covered by within protection scope of the present invention.
Claims (5)
1. a kind of air separation unit with high pressure heat exchange oxygen supply, including double rectification column, main heat exchanger (E1), double rectification column bag
Include tower (C2), lower tower (C1) and positioned at condenser/evaporator (K) between the two, lower tower (C1) bottom is connected with air and enters tower tube road
(2), upper tower (C2) top is connected with nitrogen and goes out tower tube road (4), air enters tower tube road (2) and nitrogen go out tower tube road (4) respectively through
Main heat exchanger (E1) realizes heat exchange, it is characterised in that：The evaporation side of condenser/evaporator (K) is connected with liquid oxygen output channel (1), liquid
High Pressure Liquid Oxygen Pump (OP1) and high pressure heat exchanger (E3) is sequentially connected with oxygen output channel (1), and the air enters tower tube road (2) tool
There are two branch roads of parallel connection, a branch road is through the main heat exchanger (E1), and another branch road is through the hyperpyrexia around pipe heat exchange
The heat exchange of air and liquid oxygen realized by device.
2. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 1, it is characterised in that：The lower tower
(C1) lower end is connected with liquid air pipeline (5), and liquid air pipeline (5) other end is connected to tower (C2) top, and liquid air pipeline (5) is provided with
Liquid air heat exchanger (E2), the nitrogen goes out tower tube road (4) through liquid air heat exchanger (E2).
3. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 2, it is characterised in that：The condensation is steamed
The condensation side for sending out device (K) is connected with liquid nitrogen pipes (6), and liquid nitrogen pipes (6) are connected to upper tower (C2) top through liquid air heat exchanger (E2)
Portion.
4. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 3, it is characterised in that：The upper tower
(C2) it is rectifying section to go out between tower tube road (4) interface and liquid air pipeline (5) interface in nitrogen, under liquid air pipeline (5) interface is
Stripping section, rectifying section is connected with dirty nitrogen and goes out tower tube road (3), dirty nitrogen go out tower tube road (3) sequentially pass through liquid air heat exchanger (E2) and master change
Hot device (E1).
5. a kind of air separation unit with high pressure heat exchange oxygen supply according to claim 4, it is characterised in that：The high pressure is changed
Hot device (E3) is high pressure wound tube heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883900.4A CN106440660A (en) | 2016-10-10 | 2016-10-10 | Air separation device with high-pressure heat exchange and oxygen supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610883900.4A CN106440660A (en) | 2016-10-10 | 2016-10-10 | Air separation device with high-pressure heat exchange and oxygen supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106440660A true CN106440660A (en) | 2017-02-22 |
Family
ID=58173037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610883900.4A Pending CN106440660A (en) | 2016-10-10 | 2016-10-10 | Air separation device with high-pressure heat exchange and oxygen supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106440660A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229143A (en) * | 2020-10-29 | 2021-01-15 | 浙江智海化工设备工程有限公司 | Device and method for producing oxygen and nitrogen by separating air through cryogenic rectification |
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| US5966967A (en) * | 1998-01-22 | 1999-10-19 | Air Products And Chemicals, Inc. | Efficient process to produce oxygen |
| CN201281522Y (en) * | 2008-08-22 | 2009-07-29 | 苏州制氧机有限责任公司 | Oxygen self-supercharging air separating device |
| CN101886871A (en) * | 2010-08-04 | 2010-11-17 | 四川空分设备(集团)有限责任公司 | Method and device for producing pressure oxygen by air separation |
| JP2012083058A (en) * | 2010-10-14 | 2012-04-26 | Taiyo Nippon Sanso Corp | Air liquefied separation method and device |
| US20120285197A1 (en) * | 2009-12-11 | 2012-11-15 | L'air Liquide Societe Anonyme Pour L'etude Et L' Exploitation Des Procedes Georges Claude | Process and unit for the separation of air by cryogenic distillation |
| CN105823302A (en) * | 2016-05-18 | 2016-08-03 | 杭州杭氧股份有限公司 | Air separation device and method capable of achieving oxygen inner and outer compression procedure interchange |
| CN206176891U (en) * | 2016-10-10 | 2017-05-17 | 浙江海天气体有限公司 | Air separation device with high pressure heat transfer oxygen suppliment |
-
2016
- 2016-10-10 CN CN201610883900.4A patent/CN106440660A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5966967A (en) * | 1998-01-22 | 1999-10-19 | Air Products And Chemicals, Inc. | Efficient process to produce oxygen |
| CN201281522Y (en) * | 2008-08-22 | 2009-07-29 | 苏州制氧机有限责任公司 | Oxygen self-supercharging air separating device |
| US20120285197A1 (en) * | 2009-12-11 | 2012-11-15 | L'air Liquide Societe Anonyme Pour L'etude Et L' Exploitation Des Procedes Georges Claude | Process and unit for the separation of air by cryogenic distillation |
| CN101886871A (en) * | 2010-08-04 | 2010-11-17 | 四川空分设备(集团)有限责任公司 | Method and device for producing pressure oxygen by air separation |
| JP2012083058A (en) * | 2010-10-14 | 2012-04-26 | Taiyo Nippon Sanso Corp | Air liquefied separation method and device |
| CN105823302A (en) * | 2016-05-18 | 2016-08-03 | 杭州杭氧股份有限公司 | Air separation device and method capable of achieving oxygen inner and outer compression procedure interchange |
| CN206176891U (en) * | 2016-10-10 | 2017-05-17 | 浙江海天气体有限公司 | Air separation device with high pressure heat transfer oxygen suppliment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112229143A (en) * | 2020-10-29 | 2021-01-15 | 浙江智海化工设备工程有限公司 | Device and method for producing oxygen and nitrogen by separating air through cryogenic rectification |
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Effective date of registration: 20220105 Address after: 317000 southeast of line A3, Linhai Park, chemical API base, Taizhou City, Zhejiang Province Applicant after: ZHEJIANG HAICHANG GAS Co.,Ltd. Address before: No. 391, Dongfang Avenue, Linhai, Taizhou, Zhejiang Applicant before: ZHEJIANG HAITIAN GAS Co.,Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |