CN102809623B - Fluid analyzing method - Google Patents

Fluid analyzing method Download PDF

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Publication number
CN102809623B
CN102809623B CN201110144887.8A CN201110144887A CN102809623B CN 102809623 B CN102809623 B CN 102809623B CN 201110144887 A CN201110144887 A CN 201110144887A CN 102809623 B CN102809623 B CN 102809623B
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fluid
line
hollow tubular
solid post
analysis method
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CN102809623A (en
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毛以朝
辛靖
夏国富
孟宪友
刘新
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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Sinopec Research Institute of Petroleum Processing
China Petroleum and Chemical Corp
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Abstract

The invention discloses a fluid analyzing method comprising the step of conveying a fluid sample to a fluid pressure-reducing device (2) and a fluid analyzing device (3) in sequence by a fluid pipeline (1), wherein the fluid pressure-reducing device (2) is designed to comprise a hollow pipe (2) and a solid pillar (22), in addition, the hollow pipe (21) is sleeved on the solid pillar (22) in a way of keeping a gap, and therefore, the pressure of the fluid sample is reduced when the fluid sample flows through the gap between the hollow pipe (2) and the solid pillar (22); and the fluid sample subjected to the pressure reducing treatment is conveyed to the fluid analyzing device (3) by the fluid pipeline (1). Thus, the fluid analyzing method provided by the invention is good in fluid pressure reducing effect and is simple and practicable.

Description

Fluid analysis method
Technical field
The present invention relates to a kind of convection cell and sample, process and the method for analysis etc., particularly, relate to a kind of fluid analysis method.
Background technology
Conventionally, petroleum refining is carried out under high pressure and/or hot conditions, the boiling range of fluid after these processes, density, impurity content, compound composition etc. all can change, and some are the enforceable indexs of dispatching from the factory for these physico-chemical properties, and some are to instructing commercial production to be of great importance.In addition, at the laboratory stage of catalyzer and technical study, conventionally can use the devices such as micro-anti-, small-sized, pilot scale to carry out correlative study, adopt high-temperature and high-pressure conditions to simulate or accelerate chemical reaction.In this process, also need to carry out product analysis.Above-mentioned fluid exists with gas, liquid or gas-liquid mixture form conventionally, for example hydro carbons, aqueous solution or organic compound and potpourri.For these raw materials, middle product, product analysis are carried out fast, conventionally adopt on-line analysis, do not needing to cut off processing procedure, by side line, take out continuously a small amount of analytic sample, the method that immediately enters analytical equipment.
Wherein, CN101275932A provides a kind of pulse micro-inverse product yield on-line simulation distil analysis method, the packed column injection port that is included in gas chromatograph injects reactant with pulse mode, reactant enters the reaction tube of micro-reactor through material transferring pipeline, the micro-inverse product flowing out from reaction tube enters the split sampling mouth of gas chromatograph again through another root material transferring pipeline, after shunting, a part is discharged from shunting outlet, another part enters nonpolar capillary chromatographic column, under linear temperature program condition, micro-inverse product is carried out to separation by boiling point order, entering detecting device detects again, by stratographic analysis, obtained distillating quality percentage composition and the corresponding temperature corresponding to retention time of component, obtain the simulation distil boiling range of micro-inverse product.The method can be used for the preliminary assessment of catalyzer initial activity and activity stability.
But during on-line analysis, the product fluid that flows out reaction tube enters analytical instrument analysis conventionally after the hollow transfer line of reducing.Yet, due to the fluid transport pipeline of the analytical instrument such as conventional chromatogram, mass spectrum, infrared, nuclear-magnetism or analyze the high pressure that cavity cannot fluid-resistant, cause adopting the fluid after the hollow transfer line of reducing directly to analyze.
Therefore, the key that completes on-line analysis is, high-pressure fluid can carry out step-down operation before entering analysis module, and conventional method is to adopt reduction valve to carry out step-down.In current relief valve body, assembling parts is generally more, causes volume larger, the portability of impact analysis module.In addition, if employing plastic seal parts conventionally cannot be high temperature resistant in reduction valve, adopt the common volume of metal sealing parts larger, also affect its portability.
Therefore, need a kind of fluid antihypertensive effect good, and simple fluid analysis method.
Summary of the invention
The object of this invention is to provide a kind of fluid analysis system method, the fluid antihypertensive effect of this fluid analysis method is good, and simple.
To achieve these goals, the invention provides a kind of fluid analysis method, this fluid analysis method comprises fluid sample is transported to fluid depressurization device and fluid analyzer unit wherein successively by fluid line, described fluid depressurization device is designed to comprise hollow tubular and solid post, and described hollow tubular is sleeved in described solid post with a gap, step-down is carried out in the gap that described fluid sample is flowed through between described hollow tubular and described solid post, and the described fluid sample through step-down is transported to described fluid analyzer unit by fluid line.
Preferably, described solid post and described hollow tubular are designed to be able to mutual slip.
Preferably, the ratio of the external diameter of described solid post and the internal diameter of described hollow tubular is 0.9~0.999.
Preferably, the ratio of the external diameter of described solid post and the internal diameter of described hollow tubular is 0.95~0.99.
Preferably, the Design of length of described solid post becomes to be greater than the length of described hollow tubular.
Preferably, at least one end of described solid post reaches the outside of described hollow tubular.
Preferably, the length-diameter ratio of described solid post is 50~5000.
Preferably, the length-diameter ratio of described solid post is 100~800.
Preferably, at least one end of described hollow tubular is provided with dismountable the second web member, and described the second web member and/or described hollow tubular are detachably connected to fluid line by ferrule fitting.
Preferably, described fluid analyzer unit is gas chromatographicanalyzer and/or mass spectrometer and/or infrared spectrometric analyzer.
Preferably, the fluid sample fluid regulation apparatus of also flowing through, described fluid regulation apparatus is designed to comprise filtrator and flow control valve, fluid sample flows through described filtrator and flow control valve successively, then by fluid line, flow into described fluid depressurization device.
Preferably, between described fluid depressurization device and described fluid analyzer unit, fluid sampling apparatus is set, fluid sample after described fluid depressurization device step-down is transported in described fluid sampling apparatus and samples and keep in, and then fluid sample temporary in described fluid sampling apparatus is transported to described fluid analyzer unit.
Preferably, described fluid sampling apparatus is designed to comprise six-way valve and sampling quantity tube, and described six-way valve and described sampling quantity tube are linked together.
Preferably, described six-way valve is designed to comprise fluid inlet, air intake opening, evacuation port, outlet, the first connector, the second connector and spaced spool, wherein, described fluid inlet connects described fluid depressurization device by fluid line, the carrier gas of described air intake opening linking parsing device, described evacuation port is for emptying fluid, and described outlet connects described fluid analyzer unit, and described the first connector and described the second connector are connected respectively the two ends of described sampling quantity tube;
In the fluid sampling stage, by mobile described spool, described fluid inlet and the first connector are communicated with, described the second connector and evacuation port are communicated with, described air intake opening and described outlet are communicated with, to realize fluid sample collection and to be temporarily stored in described sampling quantity tube;
In the fluid analysis stage, by again moving described spool, described fluid inlet and described evacuation port are communicated with, described air intake opening and described the first connector are communicated with, described the second connector and described outlet are communicated with, to realize fluid sample, by described outlet, enter in described fluid analyzer unit.
Preferably, the diameter of the particle that described filtrator permission is passed through is 1/200~1/50 of described six-way valve channel diameter, and the flow of described flow control valve is per minute 10ml~500ml
Preferably, described fluid regulation apparatus, described fluid depressurization device, described fluid sampling apparatus and described fluid analyzer unit are removably linked together by ferrule fitting by fluid line successively.
Preferably, fluid line optionally connects by reducing element each other.
Preferably, described fluid regulation apparatus, described fluid depressurization device and described fluid sampling apparatus are placed in to insulation can.
Preferably, the temperature of described insulation can is 100 ℃~300 ℃.
Preferably, described fluid analyzer unit is placed in to the outside of described insulation can, and the fluid line between described fluid analyzer unit and described fluid sampling apparatus is designed to hot insulated line.
Preferably, the holding temperature of described hot insulated line is 200 ℃~300 ℃.
Preferably, described fluid sample comes from Trunk Line.
Preferably, have the first web member on described Trunk Line, this first web member will be positioned at the fluid extraction of described Trunk Line, and is transported to successively described fluid depressurization device and described fluid analyzer unit by fluid line.
By technique scheme, the fluid depressurization device of flowing through due to fluid has described solid post, makes fluid flow through the gap between solid post and hollow tubular, and therefore fluid antihypertensive effect of the present invention is good, and simple.
Other features and advantages of the present invention partly in detail are described the embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing is to be used to provide a further understanding of the present invention, and forms a part for instructions, is used from explanation the present invention, but is not construed as limiting the invention with embodiment one below.In the accompanying drawings:
Fig. 1 is the process flow diagram of fluid analysis method provided by the invention;
Fig. 2 is the front view of fluid depressurization device provided by the invention;
Fig. 3 is the side view of fluid depressurization device provided by the invention;
Fig. 4 is the process flow diagram of fluid regulation apparatus provided by the invention;
Fig. 5 is the process flow diagram of fluid sampling apparatus provided by the invention in sampling state;
Fig. 6 is the process flow diagram of fluid sampling apparatus provided by the invention in analysis state.
Description of reference numerals
Embodiment
Below in conjunction with accompanying drawing, the specific embodiment of the present invention is elaborated.Should be understood that, embodiment described herein only, for description and interpretation the present invention, is not limited to the present invention.
As shown in Figure 1, Figure 2 and Figure 3, fluid analysis method provided by the invention comprises fluid sample is transported to fluid depressurization device 2 and fluid analyzer unit 3 successively by fluid line 1, wherein, fluid depressurization device 2 is designed to comprise hollow tubular 21 and solid post 22, and hollow tubular 21 is sleeved in solid post 22 with a gap, step-down is carried out in the gap that fluid sample is flowed through between hollow tubular 21 and solid post 22, and the fluid sample through step-down is transported to fluid analyzer unit 3 by fluid line 1.
In technique scheme, the fluid depressurization device 2 of flowing through due to fluid is designed to have solid post 22, and make fluid flow through the gap between solid post 22 and hollow tubular 21, therefore the fluid antihypertensive effect of fluid analysis method provided by the invention is good, and simple.Be particularly useful for fluid on-line analysis.
For the convenient gap of cleaning between hollow tubular 21 and solid post 22, preferably, solid post 22 and hollow tubular 21 are designed to be able to mutual slip, to can extract solid post 22 out, clean.
What at this, need to stress is, the present invention is preferably designed to be able to mutual slip by above-mentioned solid post 22 and hollow tubular 21, but simultaneously in order to guarantee that fluid depressurization device is under step-down state, can realize between solid post 22 and hollow tubular 21 and interfixing, to reach good antihypertensive effect, preferably, the ratio of the internal diameter of the external diameter of described solid post 22 and described hollow tubular 11 is 0.9~0.999, more preferably, the ratio of the internal diameter of the external diameter of described solid post 22 and described hollow tubular 11 is 0.95~0.99.Make the gap between the two, can guarantee that fluid can flow through, can make again solid post 22 and hollow tubular 21 be correlated with by the mismachining tolerance of the two adjacently situated surfaces fixing, thereby it is unstable to there will not be solid post 22 in step-down process, to be subjected to displacement caused antihypertensive effect.
It should be noted that herein; between solid post 22 and hollow tubular 21, can also adopt the modes such as form fit to realize relatively fixing; or be directly fixed together by modes such as welding; or be fabricated to one by the mode such as one-body molded; but consider that these class methods may exist the inconvenient problem of processing, and may affect antihypertensive effect and the problem such as can not clean, the present invention does not do too much statement; but these class methods also should fall into protection scope of the present invention.
In addition,, in order to facilitate solid post 22 to be drawn out of under cleaning state, the Design of length of solid post 22 becomes to be greater than the length of hollow tubular 21.In addition, in actual use, solid post 22 at least one end reaches the outside of hollow tubular 21, and preferably two ends all reach the outside of hollow tubular, clean, and can guarantee antihypertensive effect thereby can extract easily solid post 22 out.When hollow tubular 21 is all stretched out in the two ends of solid post 22, the length that hollow tubular 21 is exposed at the two ends of solid post 22 preferably equates.In order to guarantee antihypertensive effect (being the time that fluid flows through solid post 22 and hollow tubular 21 gaps) and the convenient manufacture processing of solid post 22, preferably, the length-diameter ratio of solid post 22 is 50~5000, and more preferably, the length-diameter ratio of solid post 22 is 100~800.Said length-diameter ratio is the ratio of the length of solid post 22 and the external diameter of solid post 22 herein.
For this reason, in order to facilitate the use of the present invention in fluid analysis, particularly preferably, at least one end of hollow tubular 21 provided by the invention, be provided with dismountable web member 23, web member 23 and/or hollow tubular 21 removably connect fluid line 1 by ferrule fitting.That is, when hollow tubular 21 is all exposed in the two ends of solid post 22, the two ends of fluid depressurization device are all provided with web member 23, and when solid post 22 only has one end to expose hollow tubular 21, the bared end of fluid depressurization device is provided with web member 23.Wherein, the connected mode between web member 23 and hollow tubular 21 is preferably threaded engagement.When hollow tubular 21 one end do not arrange web member 23, this end is directly connected by ferrule fitting with fluid line.Ferrule fitting of the present invention is common for connecting the ferrule fitting of weldless steel tube in market, it comprises fittings body, cutting ferrule, nut, its principle of work is for to insert weldless steel tube in cutting ferrule, utilize cutting ferrule nut lock conflict cutting ferrule, cutting ferrule inner edge is cut weldless steel tube equably, forms effective sealing.In actual use, by different demands, select the ferrule fitting of different size.Therefore, under cleaning state, can solid post 2 for convenience detach.
In the present invention, in order to meet under the working environment of High Temperature High Pressure, work, described solid post 22 and/or hollow tubular 21 can employing standard be the various alloy seamless steel pipe manufactures of GB/T8163-19990, GB/T8162-199, GB/3087-1999, API 5L, API 5CT, ASTM A106, ASTM A53 and BS1387-1985.
In addition, described fluid analyzer unit 3 is gas chromatographicanalyzer and/or mass spectrometer and/or infrared spectrometric analyzer, and the needs in the design consideration real work of this type of fluid analyzer unit carry out, and can select wherein one or more combination.In addition, fluid analyzer unit 3 of the present invention can also be designed to other for the instrument of fluid analysis, for fear of repetition, at this, does not do too much and repeats.
In addition in order to guarantee the effect of fluid analysis, as shown in Figure 4, the fluid sample fluid regulation apparatus 4 of also flowing through, fluid regulation apparatus 4 is designed to comprise filtrator 41 and flow control valve 42, fluid sample flows through filtrator 41 and flow control valve 42 successively, then by fluid line 1, flow into fluid depressurization device 2.Wherein, filtrator 41 preferably adopts the metal material micro-filter of high temperature high voltage resistant, it is set filters number and filters out the mechanical impurity that in fluid line, needs are not analyzed and be advisable meeting, and preferably, the diameter of the particle that filtrator 41 permissions are passed through is 1/200~1/50 of six-way valve 51 (Fig. 5 and Fig. 6 are visible) channel diameter, and according to real work needs, the flow of flow control valve 42 is per minute 10ml~500ml.
In addition, as shown in Figure 5 and Figure 6, in order to facilitate fluid analyzer unit work, between fluid depressurization device 2 and fluid analyzer unit 3, fluid sampling apparatus 5 is set, fluid sample after fluid depressurization device 2 step-downs is transported in fluid sampling apparatus 5 and samples and keep in, and then fluid sample temporary in fluid sampling apparatus 5 is transported to fluid analyzer unit 3.Preferably, fluid sampling apparatus 5 is designed to comprise six-way valve 51 and sampling quantity tube 52, and six-way valve 51 and sampling quantity tube 52 are linked together.Wherein, sampling quantity tube 52 can gather and keep in fluid sample when fluid is flowed through, and six-way valve 51 is for to be preferably designed to the pneumatic six-way valve by Controlled by Programmable Controller, and to facilitate practical operation, concrete sampling method is as follows:
Six-way valve 51 is designed to comprise fluid inlet a, air intake opening b, evacuation port c, outlet d, the first connector e, the second connector f and spaced spool g, wherein, fluid inlet a connects fluid depressurization device 2 by fluid line 1, the carrier gas of air intake opening b linking parsing device, evacuation port c is for emptying fluid, outlet d connects fluid analyzer unit 3, the first connector e and is connected respectively with the second connector f the two ends that sample quantity tube 52;
In the fluid sampling stage, by moving valve core g, fluid inlet a and the first connector e are communicated with, the second connector f and evacuation port c are communicated with, air intake opening b and outlet d are communicated with, to realize fluid sample collection and to be temporarily stored in sampling quantity tube 52;
In the fluid analysis stage, by moving valve core g again, fluid inlet a and evacuation port c are communicated with, air intake opening b and the first connector e are communicated with, the second connector f and outlet d are communicated with, to realize fluid sample, by outlet d, enter in fluid analyzer unit 3.
Above-mentioned analytical equipment carrier gas for the fluid in sampling quantity tube 52 is transported to fluid analyzer unit 3, for example, can be used nitrogen.In the present invention, the capacity of sampling quantity tube is decided according to the actual requirements, and six-way valve 51 arranges three same spool g, and the compartment of terrain that it can one end activity is arranged on six-way valve 51, its concrete installation site is unrestricted, as long as can meet the connection of each interface of above-mentioned two states.Spool g is subject to Controlled by Programmable Controller, and user can set in advance as time, flow, pressure and other parameters.This technology is known to those skilled in the art, does not repeat them here.
It should be noted that in addition, the six-way valve sampling mode that the present invention adopts is a kind of preferred implementation, but does not limit the present invention, and other is fallen into protection scope of the present invention equally by the sampling mode known to those skilled in the art.
In order to complete smoothly the on-line analysis of fluid, as shown in Figure 1, fluid regulation apparatus 4, fluid depressurization device 2, fluid sampling apparatus 5 and fluid analyzer unit 3 are removably linked together by ferrule fitting by fluid line 1 successively.Certainly, be not limited to ferrule fitting mode herein and connect, other mode removably connecting all can adopt, with for convenience detach, change and safeguard.
In addition, because the entrance of each device and assembly is wherein different, in order to adapt to the less entrance of least significant end fluid analyzer unit, preferably, fluid line 1 optionally connects by reducing element 11 each other conventionally.Reducing element 11 preferably adopts reducing two-way (Fig. 4 is visible), thereby changes as required the bore of fluid line 1, the material high temperature high voltage resistant of fluid line of the present invention, and preferably to adopt diameter be the standard pipeline of 1/16 inch or 1/8 inch.
In addition, conventionally keep liquid condition during fluid sample analysis.Therefore, preferably, fluid regulation apparatus 4, fluid depressurization device 2 and fluid sampling apparatus 5 are placed in to insulation can 7.The operating grip of each device is exposed at outside case simultaneously, does not affect operation.Insulation can 7 adopts Electric heating heating, and the holding temperature that described insulation can 7 is preferably set is 100 ℃~300 ℃, concrete so that institute's analysing fluid can keep liquid to be as the criterion.
In addition, in order to guarantee that fluid analyzer unit 3 is not subject to the impact of insulation can, and still can be incubated after fluid sample effluent fluid sampler 5, preferably, fluid analyzer unit 3 is placed in to the outside of insulation can 7, and the fluid line 1 between fluid analyzer unit 3 and fluid sampling apparatus 5 is designed to hot insulated line.And the insulating power that hot insulated line is preferably set is adjustable, and holding temperature is between 200 ℃~300 ℃, concrete so that fluid sample can keep liquid to be as the criterion.Described hot insulated line hot insulated line known to those skilled in the art, all can adopt as long as meet the hot insulated line of requirement of the present invention, and the present invention does not limit.By like this, guarantee that fluid sample incoming fluid analytical equipment 3 is front in good keeping warm mode.
It should be noted that, do not needing under the fluid analysis state of insulation, insulation can 7 and hot insulated line all can not adopt or not work in the present invention, and this is not construed as limiting the invention.
In actual use, method of the present invention is mainly used in online fluid analysis, and as shown in Figure 1, that is, preferred described fluid sample comes from Trunk Line 6.Trunk Line 6 described herein can be for carrying out the fluid Trunk Line of fluid analysis arbitrarily, such as transport line of the micro-anti-product of high pressure etc.In order to make fluid analysis method of the present invention not affect the character of the original fluid in Trunk Line 6, preferably, on Trunk Line, there is the first web member 12, this first web member 12 will be positioned at the fluid extraction of Trunk Line 6, and is transported to successively fluid depressurization device 2 and fluid analyzer unit 3 by fluid line 1.In actual use, the first web member 12 is preferably to threeway, and on the fluid line 1 between threeway and filtrator 41, stop valve (not shown) is set, controllably to gather fluid sample to fluid line from Trunk Line, can certainly directly the first web member 12 be preferably set to T-valve, as long as meet object of the present invention, the present invention does not limit this.
By such setting, make fluid analysis method of the present invention (adjusting, step-down, sampling, analysis and insulation) can not cause the fluid properties of original system to change, Trunk Line 6 to upstream and downstream can not exert an influence, flow through successively fluid regulation apparatus 4, fluid pressure reduction device 2, fluid sampling apparatus 5 and fluid analyzer unit 3 of the fluid sample of extraction from Trunk Line 6, and carry out respective handling.By fluid analysis method provided by the invention, be especially applied in online fluid analysis, fluid analysis result can be obtained rapidly, exactly, and repeatability preferably can be kept.For example be applied in and adopt high pressure micro-anti-while carrying out evaluating catalyst, in exit portion, adopt this method to carry out online product analysis, can not need manual intervention.Therefore, of the present invention effective, and simple.
Below describe by reference to the accompanying drawings the preferred embodiment of the present invention in detail; but; the present invention is not limited to the detail in above-mentioned embodiment; within the scope of technical conceive of the present invention; can carry out multiple simple variant to technical scheme of the present invention, these simple variant all belong to protection scope of the present invention.For example, can design hollow tubular 1 and solid post 2 is changed into other shapes, as rectangular parallelepiped, prismatoid and meet the object of the invention shape.
It should be noted that in addition, each concrete technical characterictic described in above-mentioned embodiment, in reconcilable situation, can combine by any suitable mode, for fear of unnecessary repetition, the present invention is to the explanation no longer separately of various possible array modes.
In addition, between various embodiment of the present invention, also can carry out combination in any, as long as it is without prejudice to thought of the present invention, it should be considered as content disclosed in this invention equally.

Claims (21)

1. a fluid analysis method, this fluid analysis method comprises fluid sample is transported to fluid depressurization device (2) and fluid analyzer unit (3) successively by fluid line (1), it is characterized in that, described fluid depressurization device (2) is designed to comprise hollow tubular (21) and solid post (22), and described hollow tubular (21) is sleeved in described solid post (22) with a gap, step-down is carried out in the gap that described fluid sample is flowed through between described hollow tubular (21) and described solid post (22), described fluid sample through step-down is transported to described fluid analyzer unit (3) by fluid line (1), described solid post (22) and described hollow tubular (21) are designed to be able to mutual slip, the ratio of the internal diameter of the external diameter of described solid post (22) and described hollow tubular (21) is 0.9~0.999.
2. fluid analysis method according to claim 1, is characterized in that, the ratio of the internal diameter of the external diameter of described solid post (22) and described hollow tubular (21) is 0.95~0.99.
3. fluid analysis method according to claim 1, is characterized in that, the Design of length of described solid post (22) becomes to be greater than the length of described hollow tubular (11).
4. fluid analysis method according to claim 3, is characterized in that, at least one end of described solid post (22) reaches the outside of described hollow tubular (21).
5. fluid analysis method according to claim 1, is characterized in that, the length-diameter ratio of described solid post (22) is 50~5000.
6. fluid analysis method according to claim 5, is characterized in that, the length-diameter ratio of described solid post (22) is 100~800.
7. fluid analysis method according to claim 3, it is characterized in that, at least one end of described hollow tubular (21) is provided with dismountable the second web member (23), and described the second web member (23) and/or described hollow tubular (21) are detachably connected to fluid line (1) by ferrule fitting.
8. fluid analysis method according to claim 1, is characterized in that, described fluid analyzer unit (3) is gas chromatographicanalyzer and/or mass spectrometer and/or infrared spectrometric analyzer.
9. fluid analysis method according to claim 1, it is characterized in that, the fluid sample fluid regulation apparatus (4) of also flowing through, described fluid regulation apparatus (4) is designed to comprise filtrator (41) and flow control valve (42), described fluid sample flows through described filtrator (41) and flow control valve (42) successively, then by fluid line (1), flow into described fluid depressurization device (2).
10. fluid analysis method according to claim 1, it is characterized in that, between described fluid depressurization device (2) and described fluid analyzer unit (3), fluid sampling apparatus (5) is set, described fluid sample after described fluid depressurization device (2) step-down is transported in described fluid sampling apparatus (5) and samples and keep in, and then described fluid sample temporary in described fluid sampling apparatus (5) is transported to described fluid analyzer unit (3).
11. fluid analysis methods according to claim 10, it is characterized in that, described fluid sampling apparatus (5) is designed to comprise six-way valve (51) and sampling quantity tube (52), and described six-way valve (51) and described sampling quantity tube (52) are linked together.
12. fluid analysis methods according to claim 11, it is characterized in that, described six-way valve (51) is designed to comprise fluid inlet (a), air intake opening (b), evacuation port (c), outlet (d), the first connector (e), the second connector (f) and spaced spool (g), wherein, described fluid inlet (a) connects described fluid depressurization device (2) by fluid line (1), the carrier gas of described air intake opening (b) linking parsing device, described evacuation port (c) is for emptying fluid, described outlet (d) connects described fluid analyzer unit (3), described the first connector (e) and described the second connector (f) are connected respectively the two ends of described sampling quantity tube (52),
In the fluid sampling stage, by mobile described spool (g), described fluid inlet (a) and the first connector (e) are communicated with, described the second connector (f) and evacuation port (c) are communicated with, described air intake opening (b) and described outlet (d) are communicated with, to realize described fluid sample collection and to be temporarily stored in described sampling quantity tube (52);
In the fluid analysis stage, by again moving described spool (g), described fluid inlet (a) and described evacuation port (c) are communicated with, described air intake opening (b) and described the first connector (e) are communicated with, described the second connector (f) and described outlet (d) are communicated with, to realize described fluid sample, by described outlet (d), enter in described fluid analyzer unit (3).
13. according to the fluid analysis method described in claim 9 or 11, it is characterized in that, the diameter of the particle that described filtrator (41) permission is passed through is 1/200~1/50 of described six-way valve (51) channel diameter, and the flow of described flow control valve (42) is per minute 10ml~500ml.
14. according to the fluid analysis method described in claim 1 or 9 or 10, it is characterized in that, described fluid regulation apparatus (4), described fluid depressurization device (2), described fluid sampling apparatus (5) and described fluid analyzer unit (3) are removably linked together by ferrule fitting by fluid line (1) successively.
15. fluid analysis methods according to claim 14, is characterized in that, fluid line (1) optionally connects by reducing element (11) each other.
16. fluid analysis methods according to claim 14, is characterized in that, described fluid regulation apparatus (4), described fluid depressurization device (2) and described fluid sampling apparatus (5) are placed in to insulation can (7).
17. fluid analysis methods according to claim 16, is characterized in that, the holding temperature of described insulation can (7) is 100 ℃~300 ℃.
18. fluid analysis methods according to claim 17, it is characterized in that, described fluid analyzer unit (3) is placed in to the outside of described insulation can (7), and the fluid line (1) between described fluid analyzer unit (3) and described fluid sampling apparatus (5) is designed to hot insulated line.
19. fluid analysis methods according to claim 18, is characterized in that, the holding temperature of described hot insulated line is 200 ℃~300 ℃.
20. fluid analysis methods according to claim 1, is characterized in that, described fluid sample comes from Trunk Line (6).
21. fluid analysis methods according to claim 20, it is characterized in that, on described Trunk Line, there is the first web member (12), this the first web member (12) will be positioned at the fluid extraction of described Trunk Line (6), and be transported to successively described fluid depressurization device (2) and described fluid analyzer unit (3) by fluid line (1).
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CN103454362B (en) * 2013-08-22 2014-11-26 中国石油天然气股份有限公司 Online chromatography decompression sample injection method
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