CN104272046A - Transportable package having a cold box, low-temperature air separation plant and method for producing a low-temperature air separation plant - Google Patents
Transportable package having a cold box, low-temperature air separation plant and method for producing a low-temperature air separation plant Download PDFInfo
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- CN104272046A CN104272046A CN201380022149.3A CN201380022149A CN104272046A CN 104272046 A CN104272046 A CN 104272046A CN 201380022149 A CN201380022149 A CN 201380022149A CN 104272046 A CN104272046 A CN 104272046A
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- ice chest
- tower
- column
- heat exchanger
- conduit
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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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04975—Construction and layout of air fractionation equipments, e.g. valves, machines adapted for special use of the air fractionation unit, e.g. transportable devices by truck or small scale use
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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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/0489—Modularity and arrangement of parts of the air fractionation unit, in particular of the cold box, e.g. pre-fabrication, assembling and erection, dimensions, horizontal layout "plot"
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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
- F25J3/04406—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
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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
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04654—Producing crude argon in a crude argon column
- F25J3/04666—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system
- F25J3/04672—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser
- F25J3/04678—Producing crude argon in a crude argon column as a parallel working rectification column of the low pressure column in a dual pressure main column system having a top condenser cooled by oxygen enriched liquid from high pressure column bottoms
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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
- F25J3/04642—Recovering noble gases from air
- F25J3/04648—Recovering noble gases from air argon
- F25J3/04721—Producing pure argon, e.g. recovered from a crude argon column
- F25J3/04727—Producing pure argon, e.g. recovered from a crude argon column using an auxiliary pure argon column for nitrogen rejection
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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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04872—Vertical layout of cold equipments within in the cold box, e.g. columns, heat exchangers etc.
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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
- F25J3/04763—Start-up or control of the process; Details of the apparatus used
- F25J3/04866—Construction and layout of air fractionation equipments, e.g. valves, machines
- F25J3/04945—Details of internal structure; insulation and housing of the cold box
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/40—Vertical layout or arrangement of cold equipments within in the cold box, e.g. columns, condensers, heat exchangers etc.
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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
- F25J2290/00—Other details not covered by groups F25J2200/00 - F25J2280/00
- F25J2290/42—Modularity, pre-fabrication of modules, assembling and erection, horizontal layout, i.e. plot plan, and vertical arrangement of parts of the cryogenic unit, e.g. of the cold box
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Separation By Low-Temperature Treatments (AREA)
Abstract
The invention relates to a transportable package for a low-temperature air separation plant which has a main heat exchanger (2a, 2b, 2c) for cooling feed air (1) and a double column (5) for separating the cooled feed air, wherein the double column (5) has a high-pressure column and a low-pressure column that are arranged above one another. The transportable package has a cold box (20, 400), in the interior of which accessories of the double column (5), in particular pipelines (7, 11, 12) and valves, are arranged, but not the double column and not the main heat exchanger, wherein the transportable package has connections for joining the pipelines to the double column and to the main heat exchanger. Moreover the invention relates to a low-temperature air separation plant and to a method for producing a low-temperature air separation plant using this transportable package.
Description
Technical field
The present invention relates to preamble as claimed in claim 1 sort out for low temp air fractionation system can transportation package body.
Background technology
Suchly modularly can being commonly called " packaging body unit " (PU) and such as in document US 2007199344A1 or document US 5461871, having description by delivery unit, air separation equipment modularly can be constructed by delivery unit by described.
Such as by document Hausen/Linde, Tieftemperaturtechnik, 1985 the 2nd edition, the 4th chapter (the 281st page to the 337th page) summarizes process and the device of the known cryogenic separation for air.
Distillation column system in the present invention comprises and has high-pressure tower and the lower pressure column double tower system for nitrogen oxygen separating, and described high-pressure tower and lower pressure column are configured to one (to form so-called double tower) on top of the other.Between Liang Ta, be usually provided with main condenser, described main condenser is constructed to Condensation-Evaporator, and high-pressure tower and lower pressure column circulate via described main condenser heat exchange.Except nitrogen oxygen separating tower, distillation column system additionally can comprise other device for obtaining high purity product and/or other composition of air (especially inert gas), such as, comprise argon process units and/or the krypton-xenon process units of crude argon column (crude argon column) and optional pure argon column (pure argon column).
Term " Condensation-Evaporator " refers to so a kind of heat exchanger, and in described heat exchanger, the first condensed fluid stream and the second evaporative fluid flow to into indirect heat exchange.Each Condensation-Evaporator comprises liquefaction space and evaporating space, and described space is made up of liquefier channel and evaporation channel respectively.Liquefaction space is the place of the condensation (liquefaction) performing first fluid stream, and evaporating space is the place of the evaporation performing second fluid stream.
Evaporation and liquefaction space are formed by the passage group mutually with heat exchanging relation.
" main heat exchanger " is used as by flowing indirect heat exchange carry out cooling supply air with from returning of distillation column system.Described main heat exchanger can be formed, such as, by one or more plate type regenerator module generation by one or more heat exchanger section that are parallel with one another and/or that be connected in series.
Be understood to refer to by the adiabatic inner insulated case be encapsulated in completely in outer wall at this " ice chest "; Treat that adiabatic part of appliance, such as one or more knockout tower and/or heat exchanger are arranged in described inside.Athermic effect can by suitably building outer wall and/or passing through to realize with the space between heat-insulating material pad device parts and outer wall.Latter event preferably adopts pulverulent material, such as, and perlite.Be of use not only in the distillation column system of nitrogen-oxygen separating in low temp air fractionation system and main heat exchanger and other cool equipment parts to be encapsulated by one or more ice chest.When pre-control equipment, the external dimensions of ice chest determines the transportation clearance of packaging body usually." highly " of ice chest is understood to refer to based on the orientation size vertically of ice chest in equipment operation; " cross section " is perpendicular to the region (horizontal plane) of described vertical direction.In transit, the height determination transportation lengths of ice chest, and cross section determination shipping height and width.
PU manufactures in the factory of the usual infield away from air separation equipment.This allows to a certain extent prefabricated in a large number and the detailing requiments therefore minimized to a certain extent in the often more difficult infield of condition.Prefabricated packaging body is transported to infield from factory, that is, have the ice chest packaging body of horizontally disposed one or more knockout towers.Packaging body length and width are subject to the restriction of this kind of transport.This technology so far only when tower is structured the air separation equipment being used to medium size when filler is filled at least in part because packed tower needs the setting height(from bottom) larger than plate column usually.The relatively large-scale equipment with packed tower is manufactured with relatively low prefabricated degree; Especially, until arrive infield place just construct ice chest.Alternatively, the rectifying plate that special use is traditional; This provides relatively large capacity really to the tower setting height(from bottom) of per unit, but causes the energy requirement of significantly increase compared with packed tower.
Summary of the invention
The object of the invention is can be designed so that the type starting to propose described can be applicable to following capacity low temp air fractionation system by transportation package body by transportation package body, for this capacity, tower-ice chest on the whole prefabricated can not realize so far.
This object is realized by feature according to claim 1.
Utilization of the present invention and double tower case and main heat exchanger case separate prefabricated specific guide bobbin carriage.Remove and be typically contained in some (preferably owning) conduits in double tower case and valve makes it possible to tower case to become correspondingly narrower.Even if this means that the two-column plant of the relative high capacity of necessary making in site so far also can be prefabricated as PU.
As claimed in claim 1 can the conduit ice chest of transportation package body comprise in the following parts listed at least one, preferably two or more or all:
-thick oxygen (crude oxygen) circuit of lower pressure column is entered from high-pressure tower;
-LIN circuit from high-pressure tower/main condenser to lower pressure column;
-to the liquid air circuit of high-pressure tower and/or lower pressure column;
-from the top of lower pressure column to the GAN circuit of adverse current subcooler and/or main heat exchanger;
-from the centre position on lower pressure column to adverse current subcooler and/or dirty nitrogen (impure nitrogen) circuit to main heat exchanger;
-for making the valve of the thick LOX decompression entering lower pressure column from high-pressure tower;
-LIN circuit from the liquefaction space of high-pressure tower or main condenser to lower pressure column;
-from double tower to adverse current subcooler and/or the product circuit (one or more) to main heat exchanger;
-through other circuit of every bar of adverse current subcooler;
-be directed to double tower case and the every bar circuit that vice versa from argon case, argon such as between lower pressure column and crude argon column transmits circuit (one or more), to and from the circuit of the overhead condenser of crude argon column, and optionally to and from the circuit of the overhead condenser of pure argon column;
-where applicable, for the valve (one or more) of each bar with each cited circuit.
Such as, the ice chest (conduit case) of transportation package body can not comprise knockout tower, that is, there is no crude argon column, there is no mixing column etc.
Alternatively, the ice chest of transportation package body at least one argon column (that is, crude argon column or pure argon column), mixing column, krypton-xenon tower or smart oxygen column can not comprised.Such as, ice chest should comprise pure argon column as unique knockout tower; Because its extremely very thin and less than conduit needs space, ice chest will be called as conduit case (although having pure argon column).
Of the present inventionly the ice chest (conduit case) of transportation package body can comprise adverse current subcooler.
" adverse current subcooler " is so a kind of unit, itself and main heat exchanger separate and are used as to cool or heat one or more liquid again, and one or more liquid described are from one of them tower for nitrogen oxygen separating of distillation column system or return the mixing column of back flow from one or more cold air.These return the tower (when use comprise the system of two or more towers, usually from lower pressure column) of stream from distillation column system.Such as, from the tower of elevated pressures (such as, high-pressure tower from double tower system) to be depressurized and the liquid stream entering the tower (such as, entering lower pressure column) of lower pressure is cooled to closely corresponding with the lower grade of pressure boiling temperature in adverse current subcooler at boiling temperature.In fact this make the spark (flash) by producing from higher expansion to lower pressure minimize.When liquid oxygen was guided through adverse current subcooler from lower pressure column before injecting mixing column, liquid oxygen is by the boiling point of heating on the contrary to become closely under (usually higher) pressure of mixing column.In the opposite direction, the cold stream that returns being in dew-point temperature from tower is heated at low pressures.Because these streams penetrate main heat exchanger, so the processing air entering high-pressure tower becomes warmer equally; That is, closer to dew-point temperature.Be minimized by the ratio of the air liquefied in advance.
But, of the present inventionly the ice chest (conduit case) of transportation package body except adverse current subcooler, preferably can no longer comprising other heat exchanger for exchanging sensible heat, especially not comprising main heat exchanger.Such as, but conduit case can comprise the one or more heat exchangers for exchanging latent heat, comprises the Condensation-Evaporator for cooling or heat knockout tower.Alternatively, ice chest does not comprise any heat exchanger except adverse current subcooler.
In a particular implementation of the present invention, the ice chest of transportation package body can comprise crude argon column, described crude argon column has the overhead condenser being configured to Condensation-Evaporator.In this case, ice chest should be called as Combined duct and argon case.
The structure of crude argon column can be integral member shown in document EP 377117B2=US 5019145 or two or more components, the such as component of two shown in document EP 628777B1=US 5426946.When structure is two or more components, preferred all components are contained in ice chest.Combined duct and argon case can additionally accommodating pure argon columns.
The present invention also provides a kind of low temp air fractionation system, and described low temp air fractionation system has: first of accommodating double tower can transporting equipment parts, and wherein, double tower comprises and is configured to a high-pressure tower on another top and lower pressure column; With the second ice chest, it is the part as the packaging body as described in arbitrary in claim 1 to 5, and wherein, the tubes connection of the second ice chest is to double tower and be connected to ar system if present.
In a first embodiment, first can encapsulate the first ice chest by transporting equipment parts, and double tower is placed in described first ice chest.
In a second embodiment, the first part of appliance encapsulating does not have the double tower of ice chest (that is, not having insulated case).In this case, the completely pre-double tower built in inside is transported to as the general cylindrical shape parts of lying on one's side and builds place, and is endowed insulated case (ice chest) in structure place.
The ice chest of the second part of appliance will be called as " the second ice chest " after this.
Described equipment also preferably includes main heat exchanger case, i.e. another ice chest of accommodating main heat exchanger.Main heat exchanger case and the first and second ice chests manufacture dividually and are transported to infield.
When argon will be generated and the second ice chest is not configured to argon case, low temp air fractionation system can also comprise the 3rd ice chest, and the 3rd ice chest comprises crude argon column, and described crude argon column has the overhead condenser being configured to Condensation-Evaporator.3rd ice chest is also referred to as argon case and separates with the first and second ice chests and with main heat exchanger case.
The structure of crude argon column can be integral member as shown in document EP 377117B2=US 5019145 or two or more components, the such as component of two shown in document EP 628777B1=US 5426946.When structure is two or more components, all components are placed in the 3rd ice chest.3rd ice chest can additionally accommodating pure argon column.
The evaporating space of the overhead condenser of crude argon column preferably via two-phase tubes connection to lower pressure column, described two-phase catheter configurations becomes not only gas but also the evaporating space of liquid from overhead condenser during the operation of low temp air fractionation system are flow back into lower pressure column.The conduit discussed can pass the second ice chest.
This can be used to save setting height(from bottom), otherwise needs this height for the distributor in lower pressure column and collector.In order to minimize setting height(from bottom) to packed tower, be injected at same position from the gas of ar system and liquid.With separate compared with injection at different parts, save a distributor, thus save the setting height(from bottom) amounting to about a meter.This embodiment can provide advantage, although this is so not favourable with regard to process aspect when transportation lengths is especially crucial.
The present invention also provides the manufacture method of the low temp air fractionation system as claim 9 and/or 10 restriction, and wherein, using as above can transportation package body.Clean unit is constructed to such as molecular sieve adsorber.Alternatively, air also can be cleaned in reversible heat exchanger (reversing heat exchanger revex or regenerator); In this case, clean unit and main heat exchanger are formed by same device.
The present invention is preferably greater than 2000 standard cubic meters per hour for being designed to reclaim, be preferably greater than the oxygen product of 9000 standard cubic meters per hour and be less than 35000 standard cubic meters per hour, the air separation equipment of oxygen product that is preferably less than 29000 standard cubic meters per hour is useful.More specifically, argon can by as another Product recycling.
Accompanying drawing explanation
The present invention and other details of the present invention is more specifically illustrated, wherein referring now to two working Examples schematically shown in the accompanying drawings
Fig. 1 illustrates the first working Examples as pure conduit case of the present invention, and
Fig. 2 illustrates the second working Examples as Combined duct and argon case.
Detailed description of the invention
Do not illustrate in the drawings, atmospheric air is compressed and is cleaned in clarifier in FIG in air compressor.The air supply be cleaned is cooled to about dew point relative to product stream in main heat exchanger.Main heat exchanger is in an embodiment made up of three the plate type regenerator module 2a in parallel be contained in connected ice chest (that is, main heat exchanger case 10), 2b, 2c.
In general, main heat exchanger also can by a heat exchanger module composition or alternatively by one, two, three or more heat exchanger module composition.These heat exchanger modules can be in parallel or divide according to its function, such as, be divided into high pressure interchanger and low pressure interchanger.
Cooled air is supplied to and after this will be called as in the ice chest 20 of conduit case by connecting duct 3.In described conduit case 20, air in the catheter and optionally advance via valve, and is entered double tower 5 via circuit by final guiding.Alternatively, air directly flows into tower case 30 from main heat exchanger case 10; In that case, conduit case 12 does not comprise for the air fed circuit of gaseousness.
Double tower 5 is placed in another ice chest 30 (that is, tower case).The final sum intermediate products of double tower are directed into conduit case 20 via (only pointing out in the accompanying drawings) many connection lines 6, and another conduit and/or the part of appliance of following type is sent to by conduit case, another conduit of described type and/or part of appliance are common in low temp air fractionation system, are such as contained in the valve in conduit case or adverse current subcooler.In this working Examples, conduit case especially comprises following parts:
-liquid air circuit 7;
-adverse current subcooler 8;
-turbo separator 9, the upstream that liquid is in expansion turbine at described turbo separator is separated;
-for the GAN circuit 11 of the gaseous nitrogen from lower pressure column;
-for the dirty nitrogen circuit 12 of the dirty nitrogen of gaseous state from lower pressure column;
Described dirty nitrogen circuit 12 and GAN circuit 11 (as not shown in the figure) directly penetrate main heat exchanger case 10 from conduit case 20.
What also directly do not illustrate in the drawings is the circuit being directed to tower case from argon case, described circuit whole or be substantially all placed in equally in conduit case.These circuits comprise: for flowing to the circuit of the fluid of the evaporating space of the overhead condenser of pure argon column and crude argon column in liquid form; And gaseous state and the possible liquid route returning stream for being returned by described evaporating space; Also have argon transmission line, namely for crude argon column supply lines and enter the return line of lower pressure column from crude argon column.
Conduit case also comprises configuration will be placed in all circuits in tower case to tower case in legacy equipment.
Many the stream (product stream and/or residual stream) that returns of equipment is introduced main heat exchanger case 10 from conduit case 20 by connection line 13 and 14 (only pointing out in the accompanying drawings) respectively, and described return stream heated in main heat exchanger 2a, 2b, 2c after, return described in making stream discharge main heat exchanger 10.
Working Examples additionally reclaims argon by introducing from double tower 5 another ice chest 40 of being configured to argon case by conduit case and circuit 15 by flowing through containing argon.Described argon case 40 comprises the pure argon column 42 that single type is separated with for argon-nitrogen for the crude argon column 41 of argon-oxygen separating, wherein said crude argon column has (description) overhead condenser.
Argon product and argon removal process residual fraction are got back in conduit case 20 via connection line 16 (only pointing out in the drawings) is directed, then also flow to main heat exchanger case as returning stream 15.
Alternatively, also argon case can be omitted.
Conduit case can by completely prefabricated; That is, the projection shade (protruding shelter) with console not retraining rodability is built.All Drives for valve can wait until assembling between the time of shipment.This and any instrument (comprising transmitter) can be assembled, the data circuit of the input/output cards similarly from transmitter to numerical process control system.Prefabricated conduit tubes case comprises central bus terminal, and by central bus terminal, conduit case is connected to Process Control System at infield middle ground.The airline of all appts and control circuit, cable etc. can in the factory by connect/to be connected.
Completely prefabricated conduit case can be tested in advance when being still arranged in factory.Operating platform can in order to load and transport by Reseal.
Case 10,20,30,40 all can have himself Structural Engineering.Connection (such as, from the coated conduit of heat-insulating material that a case is directed to next case) between case can be manufactured into flexible or rigidity.Except the Structural Engineering of each case self, the steel construction of case can expressly connect together, and to make Structural Engineering couple further improvement by static state, such as, is improved further by the special supporting member that also can be used as movable panel face.
Fig. 2 illustrates the second embodiment of Combined duct of the present invention and argon case 400.Except the parts of the conduit case 20 in Fig. 1, this combined-type box 400 comprises crude argon column 41, does not have pure argon column in a particular embodiment.Alternatively, pure argon column can additionally be placed in Combined duct and argon case 400.For other side, the structure that structure and the composition graphs 1 of described equipment describe is consistent.
Claims (10)
1. one kind for low temp air fractionation system can transportation package body, described low temp air fractionation system comprises the main heat exchanger (2a for cooling supply air (1), 2b, 2c) with for separating of cooled air fed double tower (5), wherein, double tower (5) comprises and is configured to a high-pressure tower on another and lower pressure column
It is characterized in that, ice chest (20 can be comprised by transportation package body, 400), the accommodated inside of described ice chest is used for the accessory of double tower (5) and neither accommodating double tower also not accommodating main heat exchanger, described accessory is conduit (7,11,12) and valve especially, wherein, terminal for connecting the conduit to double tower and main heat exchanger can be comprised by transportation package body.
2. packaging body according to claim 1, is characterized in that, ice chest (20,400) does not comprise knockout tower.
3. packaging body according to claim 1 and 2, is characterized in that, ice chest (20,400) comprises adverse current subcooler (8).
4. packaging body according to claim 3, is characterized in that, ice chest (20,400) no longer comprises other heat exchanger for exchanging sensible heat except adverse current subcooler (8).
5., according to described packaging body arbitrary in Claims 1-4, it is characterized in that, ice chest (400) comprises crude argon column (41), and described crude argon column has the overhead condenser being constructed to Condensation-Evaporator.
6. a low temp air fractionation system, has
First of accommodating double tower (5) can transporting equipment parts (30), and wherein, double tower (5) comprises and is configured to a high-pressure tower on another top and lower pressure column, and
Second can transporting equipment parts (20,400), and it is constructed to as the packaging body as described in arbitrary in claim 1 to 5,
Wherein, the conduit (7,11,12) of the second part of appliance (20,400) is connected to double tower (5).
7. low temp air fractionation system as claimed in claim 6, described low temp air fractionation system has the 3rd ice chest (40), described 3rd ice chest comprises the crude argon column (41) with overhead condenser, and described overhead condenser is constructed to Condensation-Evaporator.
8. low temp air fractionation system as claimed in claim 7, wherein, the evaporating space of overhead condenser is via two-phase tubes connection to lower pressure column, and described two-phase catheter configurations is make during the operation of low temp air fractionation system that not only gas but also liquid flow back to lower pressure column from the evaporating space of overhead condenser.
9., for the manufacture of a method for the low temp air fractionation system as described in as arbitrary in claim 6 or 7, said method comprising the steps of:
Manufacture first can transporting equipment parts (30) as can transportation package body and transport it into infield,
Manufacture second can transporting equipment parts (20) as described in arbitrary in claim 1 to 5 can transportation package body and transport it into infield,
In infield by second can the tubes connection of transporting equipment parts (20) can the double tower (5) of transporting equipment parts (30) to first, and
In infield, double tower (5) is connected to for compressing air fed air compressor, for by the air fed clean unit that compresses and the main heat exchanger (2a for cooling the air supply (1) be cleaned, 2b, 2c).
10. method as claimed in claim 9, further comprising the steps of:
Manufacture the 3rd ice chest (40) as can transportation package body and transport it into infield, wherein, 3rd ice chest (40) comprises conduit terminal and crude argon column (41), and described crude argon column has the overhead condenser being constructed to Condensation-Evaporator, and
In infield by the conduit of at least some catheter end sub-connection of the 3rd ice chest (40) to the second ice chest (20).
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012008415A DE102012008415A1 (en) | 2012-04-27 | 2012-04-27 | Transportable package comprising a cold box, cryogenic air separation plant and method of manufacturing a cryogenic air separation plant |
| DE102012008415.3 | 2012-04-27 | ||
| PCT/EP2013/001046 WO2013159868A2 (en) | 2012-04-27 | 2013-04-09 | Transportable package having a cold box, low-temperature air separation plant and method for producing a low-temperature air separation plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104272046A true CN104272046A (en) | 2015-01-07 |
Family
ID=48139878
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201380022149.3A Pending CN104272046A (en) | 2012-04-27 | 2013-04-09 | Transportable package having a cold box, low-temperature air separation plant and method for producing a low-temperature air separation plant |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20150096327A1 (en) |
| EP (1) | EP2841858A2 (en) |
| CN (1) | CN104272046A (en) |
| DE (1) | DE102012008415A1 (en) |
| WO (1) | WO2013159868A2 (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3052243B1 (en) * | 2016-06-06 | 2019-06-28 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Procedes Georges Claude | ASSEMBLY OF MODULAR CONSTRUCTION ELEMENTS OF A MASS AND / OR HEAT EXCHANGE APPARATUS AND EXCHANGE METHOD USING AN ASSEMBLY |
| DE102016125350A1 (en) | 2016-12-22 | 2018-06-28 | Endress+Hauser SE+Co. KG | Connecting element and transmitter housing with inserted therein connecting element |
| CN110268215B (en) * | 2017-01-10 | 2021-09-03 | 乔治洛德方法研究和开发液化空气有限公司 | Enclosure for an apparatus for separating a gaseous mixture by distillation and separation apparatus comprising such an enclosure |
| WO2018140445A1 (en) | 2017-01-25 | 2018-08-02 | Praxair Technology, Inc. | Structual support assembly for cold box structures in an air separation unit |
| EP3614083A1 (en) | 2018-08-22 | 2020-02-26 | Linde Aktiengesellschaft | Air separation system, method for cryogenic decomposition of air using air separation system and method for creating an air separation system |
| EP3614082A1 (en) | 2018-08-22 | 2020-02-26 | Linde Aktiengesellschaft | Air separation plant, method for cryogenic decomposition of air and method for creating an air separation system |
| EP3614084A1 (en) * | 2018-08-22 | 2020-02-26 | Linde Aktiengesellschaft | Method and installation for cryogenic decomposition of air |
| CN109676367A (en) | 2018-12-28 | 2019-04-26 | 乔治洛德方法研究和开发液化空气有限公司 | A kind of method of heat exchanger assemblies and the assembly heat exchanger assemblies |
| FR3095217B1 (en) * | 2019-04-17 | 2021-03-19 | Air Liquide | Frame panel intended to be part of a cold box of a separation device |
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| JPH06229668A (en) * | 1992-12-30 | 1994-08-19 | L'air Liquide | Method and equipment for manufacturing gaseous oxygen |
| US5412954A (en) * | 1992-09-16 | 1995-05-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Precedes Georges Claude | Apparatus for cryogenic treatment, such as air distillation |
| FR2778234A1 (en) * | 1998-04-30 | 1999-11-05 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
| CN1447895A (en) * | 2000-08-18 | 2003-10-08 | 林德股份公司 | Low temp air fractionation system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3840506A1 (en) | 1988-12-01 | 1990-06-07 | Linde Ag | METHOD AND DEVICE FOR AIR DISASSEMBLY |
| DE4317916A1 (en) | 1993-05-28 | 1994-12-01 | Linde Ag | Process and apparatus for the isolation of argon |
| FR2706025B1 (en) | 1993-06-03 | 1995-07-28 | Air Liquide | Air distillation installation. |
| JP3669665B2 (en) * | 1997-09-29 | 2005-07-13 | エア・ウォーター株式会社 | Air separation device |
| US7621152B2 (en) | 2006-02-24 | 2009-11-24 | Praxair Technology, Inc. | Compact cryogenic plant |
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2012
- 2012-04-27 DE DE102012008415A patent/DE102012008415A1/en not_active Withdrawn
-
2013
- 2013-04-09 CN CN201380022149.3A patent/CN104272046A/en active Pending
- 2013-04-09 US US14/396,408 patent/US20150096327A1/en not_active Abandoned
- 2013-04-09 WO PCT/EP2013/001046 patent/WO2013159868A2/en active Application Filing
- 2013-04-09 EP EP13716961.1A patent/EP2841858A2/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5412954A (en) * | 1992-09-16 | 1995-05-09 | L'air Liquide, Societe Anonyme Pour L'etude Et L'exploitation Des Precedes Georges Claude | Apparatus for cryogenic treatment, such as air distillation |
| JPH06229668A (en) * | 1992-12-30 | 1994-08-19 | L'air Liquide | Method and equipment for manufacturing gaseous oxygen |
| FR2778234A1 (en) * | 1998-04-30 | 1999-11-05 | Air Liquide | AIR DISTILLATION SYSTEM AND CORRESPONDING COLD BOX |
| CN1447895A (en) * | 2000-08-18 | 2003-10-08 | 林德股份公司 | Low temp air fractionation system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2013159868A3 (en) | 2014-05-08 |
| US20150096327A1 (en) | 2015-04-09 |
| EP2841858A2 (en) | 2015-03-04 |
| WO2013159868A2 (en) | 2013-10-31 |
| DE102012008415A1 (en) | 2013-10-31 |
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