CN2238076Y

CN2238076Y - Eddy flow supercritical, subcritical gas extractor

Info

Publication number: CN2238076Y
Application number: CN 95242232
Authority: CN
Inventors: 金绍黑
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-10-10
Filing date: 1995-10-10
Publication date: 1996-10-23
Anticipated expiration: 2005-10-10

Abstract

The utility model relates to an eddy current type supercritical and subcritical gas extractor, which is designed for fitting new technology which is used for extracting under normal temperature for supercritical and subcritical gas in pharmaceutical industry and food industry. The utility model overcomes the shortage of low extraction rate of other extraction devices. The structure thereof adopts multi-stage eddy current forming plates to form an eddy current forming chamber, which is favorable for overall efficient contacting between supporting gas and material. The utility model has the advantages of acceleration of extraction rate, prevention of extraction dead area and improvement of extraction efficiency, and meanwhile, the effective constituent of extractive is not destroyed and the purity, natural color and fragrance of extraction products are kept.

Description

Overcritical, the subcritical gas extraction device of eddy current type

The utility model relates to the extraction equipment field.

Often there is different toxicity in the various organic solvents that adopted in pharmaceuticals industry and food industry, especially the natural components in the animals and plants, complex structure, extract with the common solvent heating, can destroy the active ingredient of extract, or fragrant volatile substance is overflowed with steam reduces food and medicine value, influence the purity of extract and natural colored, fragrance.In order to solve all drawbacks of extraction, the new technology that extracts at normal temperatures with supercritical gas or subcritical liquid is developed rapidly in recent years.The principle of this extracting process is to utilize CO ₂, O ₂, C ₂H ₆, C ₃H ₆The good solvent property that has in supercriticality Deng gas, extract as solvent, thereby some component extracting in various natural materials, artificial mixture, the organic pollution is come out, form supercritical phase, reduce the pressure of carrier gas then, its solvability is reduced, and extract then separates with carrier gas.Extraction equipment commonly used at present is because the shortcoming of structural design often causes CO ₂Can not contact comprehensively and effectively with material Deng gas, form the dead band, the extraction benefit is not high.

The purpose of this utility model aims to provide a kind of overcritical, subcritical gas extraction device, it can overcome the deficiency of above-mentioned extraction equipment, structurally adopt multistage eddy current to form plate, constitute eddy current and form the chamber, being beneficial to carrier gas contacts comprehensively and effectively with material, accelerate extraction rate, prevent the dead band, improved the extraction benefit.

The utility model is by the extraction chamber, and expansion valve, couples together by the metal high-pressure pipe road and to constitute separator compressor, tubing pump.The extraction material be placed on the extraction chamber in and high pressure under carrier gas carry out " immersion ".Top, extraction chamber is end socket, and the middle part is a column-shaped barrel, and the bottom is a conical shell, and upper, middle and lower portion is by being welded to connect; The end socket top is welded with two pipelines, and wherein a pipeline links to each other with separator by expansion valve, and another root pipeline links to each other with separator by tubing pump; The simplified upper side of cylindricality is welded with a flange, in order to add material, after adding material, seal with blind flange, side, column-shaped barrel middle and upper part is welded with the installing plate of four symmetries, is convenient to installing and fixing of extraction chamber, and the column-shaped barrel downside is welded with a flange in order to take out waste material, after having got waste material, use the flange end cap seal; The conical shell bottom is welded with a pipeline, and be connected with separator by compressor, there are three layers of eddy current to form plate in the conical shell, distance between plates is from for being not more than 10cm, be welded in inner walls respectively, eddy current forms on the plate many little inclined holes, the aperture is 5～10mm, the angle on centerline hole and plate surface is about 80 ° of acute angles, the bore edges spacing is the radius that is not more than the hole, so that the formation of eddy current is placed with the double layer of metal separation net on the uppermost plate, its effect is to prevent that material from falling and the obstruction pore.Separator be for carrier gas in decompression process, the separating of extract and carrier gas is so that collect extract and store carrier gas and recycle.On the top of separator is end socket, and the middle part is a column-shaped barrel, and the bottom is a conical shell, and upper, middle and lower portion adopts and is welded to connect; The end socket top is welded with three pipelines, and wherein one links to each other with the extraction chamber by expansion valve, and one links to each other with the extraction chamber by tubing pump, and another root links to each other with the extraction chamber by compressor; Side, column-shaped barrel middle and upper part is welded with the installing plate of four symmetrical distributions, is convenient to installing and fixing of separator, and the downside of column-shaped barrel is welded with an admission line, and air valve is housed on the air inlet pipe; Conical shell is convenient to the collection of extract, and its bottom is welded with a delivery pipe, and the liquid taking valve door is housed.Extraction chamber and separator shell respectively are equipped with a sensor-type Pressure gauge, are convenient to monitor container internal pressure.The effect of compressor is that the gas in the separator is squeezed into the extraction chamber, makes to extract indoor gas and remain on the extraction process state, and the effect of tubing pump is reinforced and when getting material in the extraction chamber, will extract indoor gas and send into separator.

Overcritical, the subcritical gas extraction device of the utility model eddy current type has overcome the deficiency of extraction equipment in the past, structurally adopted multistage eddy current to form plate, constitute unique eddy current and form the chamber, being beneficial to carrier gas contacts comprehensively and effectively with material, accelerate extraction rate, prevent the extraction dead band, improved the extraction benefit.

Accompanying drawing 1 is overcritical, the subcritical gas extraction apparatus structure of a utility model eddy current type schematic diagram.1 is the extraction chamber among the figure, the 2nd, and expansion valve, the 3rd, separator, the 4th, compressor, the 5th, extraction chamber's Pressure gauge, the 6th, separator pressure table, the 7th, tubing pump, the 8th, liquid taking valve door, the 9th, intake valve, the 10th, extraction chamber's upper flange, the 11st, extraction chamber's lower flange, the 12nd, metal separation net, the 13rd, eddy current forms plate, the 14th, extraction chamber's installing plate, the 15th, separator installing plate, the 16th, the signal of extraction material, the 17th, extract signal.

Embodiment:

As shown in Figure 1, extraction chamber 1 and separator 3 are respectively by end socket, column-shaped barrel and conical shell are welded, 1 end socket top, extraction chamber is welded with two pressure pipings, wherein one by being welded in separator 3 end socket tops behind the expansion valve 2, another root is welded in separator 3 end socket tops after by tubing pump 7, extraction chamber's 1 column-shaped barrel upper side is welded with charging flange 10, and use the flange end cap seal, downside is welded with gets material flange 11, and use the flange end cap seal, side, column-shaped barrel middle and upper part is welded with the installing plate 14 of four symmetrical distributions, extraction chamber's 1 conical shell bottom weldering one pipeline, and by being welded in behind the compressor 4 on separator 3 end sockets, have three layers of eddy current to form plate 13 in the conical shell, the plate side welds mutually with extraction chamber's 1 inwall, and it is 8cm that eddy current forms distance between plates, the plate upper punch is shaped on the inclined hole of many Φ 8mm, centerline hole and plate surface angle is 80 ° of acute angles, and the bore edges spacing is not more than 4mm, and last layer eddy current forms and is placed with double layer of metal separation net 12 on the plate 13; Side, separator 3 column-shaped barrel middle and upper part also is welded with the installing plate 15 of four symmetrical distributions, and the column-shaped barrel downside is welded with an admission line, and air valve 9 is housed on the air inlet pipe, and separator 3 conical shells bottom is welded with a delivery pipe, and liquid taking valve door 8 is housed on the delivery pipe; Be respectively arranged with sensor-type Pressure gauge 5 and 6 on extraction chamber's 1 end socket and separator 3 end sockets.

Claims

1, overcritical, the subcritical gas extraction device of a kind of eddy current type, by extraction chamber, expansion valve, separator, tubing pump, compressor, constitute by the connection of high-pressure delivery pipeline, it is characterized in that: extraction chamber and separator are made up of top, middle part, bottom respectively, and adopt welding to connect, top is end socket, and the middle part is a column-shaped barrel, and the bottom is a conical shell; End socket top, extraction chamber is welded with two pipelines, and the conical shell bottom is welded with a pipeline; Separator end socket top is welded with three pipelines, wherein one links to each other with the corresponding pipeline in end socket top, extraction chamber by expansion valve, one links to each other with the corresponding pipeline in end socket top, extraction chamber by tubing pump, and the pipeline that another root is welded by compressor and extraction chamber's conical shell bottom links to each other; All be welded with the installing plate of four symmetrical distributions on extraction chamber and the separator, the position is in the side, middle and upper part of column-shaped barrel; Extraction chamber's column-shaped barrel upper side and downside respectively are welded with a flange hole, and with blind flange sealing, have three layers of eddy current to form plates in the conical shell, and the side of plate welds mutually with the conical shell inwall, are placed with the double-level-metal separation net on the last layer eddy current formation plate; Separator cylindricality cylindrical shell downside is welded with a pipeline, and air valve is housed on the pipeline, and the conical shell bottom is welded with a pipeline, and the liquid taking valve door is housed on the pipeline; On extraction chamber's end socket and the separator end socket sensor-type Pressure gauge is housed all.

2, extraction equipment according to claim 1, it is characterized in that: eddy current forms on the plate in extraction chamber's conical shell many inclined holes, the aperture is Φ 5～Φ 10mm, and the spacing between bore edges is the radius that is not more than the hole, and centerline hole and plate face angle are about 80 ° of acute angles.

3, according to claim 1,2 described extraction equipments, it is characterized in that: eddy current forms the distance between plates of plate for being not more than 10cm.