CN106802344A - A kind of LNG handling continuous sampling analytical equipment and application method - Google Patents
A kind of LNG handling continuous sampling analytical equipment and application method Download PDFInfo
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- CN106802344A CN106802344A CN201710137558.8A CN201710137558A CN106802344A CN 106802344 A CN106802344 A CN 106802344A CN 201710137558 A CN201710137558 A CN 201710137558A CN 106802344 A CN106802344 A CN 106802344A
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- 238000005070 sampling Methods 0.000 title claims abstract description 163
- 238000000034 method Methods 0.000 title claims abstract description 18
- 239000000523 sample Substances 0.000 claims abstract description 223
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 79
- 239000010959 steel Substances 0.000 claims abstract description 79
- 238000002309 gasification Methods 0.000 claims abstract description 58
- 238000004458 analytical method Methods 0.000 claims abstract description 45
- 230000008676 import Effects 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 25
- 230000007246 mechanism Effects 0.000 claims abstract description 16
- 238000002955 isolation Methods 0.000 claims abstract description 9
- 238000001514 detection method Methods 0.000 claims description 26
- 230000033228 biological regulation Effects 0.000 claims description 18
- 230000002159 abnormal effect Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 8
- 230000008569 process Effects 0.000 claims description 7
- 230000006641 stabilisation Effects 0.000 claims description 6
- 238000011105 stabilization Methods 0.000 claims description 6
- 230000000087 stabilizing effect Effects 0.000 claims description 6
- 238000003860 storage Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000007689 inspection Methods 0.000 claims description 4
- 238000010926 purge Methods 0.000 claims description 4
- 239000007789 gas Substances 0.000 description 23
- 239000007788 liquid Substances 0.000 description 10
- 238000011049 filling Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000007599 discharging Methods 0.000 description 3
- 238000002156 mixing Methods 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 238000004364 calculation method Methods 0.000 description 2
- 230000006837 decompression Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000002086 nanomaterial Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000004781 supercooling Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/22—Fuels; Explosives
- G01N33/225—Gaseous fuels, e.g. natural gas
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
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- Sampling And Sample Adjustment (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The present invention relates to a kind of LNG handling continuous sampling analytical equipment and application method, characterized in that, the sampling analysis device includes LNG sampling probes, gasification installation, sampling main pipe rail, BOG return mechanisms, on-line analysis device, volume control device, sample caisson, sample steel cylinder fill system and control system；LNG sampling probes connect gasification installation import by isolating shut-off valve and detector unit, and gasification installation outlet connects BOG return mechanisms by sampling main pipe rail；Gasification installation outlet is also connected to line analysis device and volume control device by sampling main pipe rail, volume control device is also connected with sample caisson import, sample caisson outlet connection sample steel cylinder fill system, sample steel cylinder fill system is also connected with house steward BOG；Isolation shut-off valve, detector unit, sampling main pipe rail, volume control device, sample caisson and sample steel cylinder fill system are electrically connected control system, in the method can be widely used in analysis LNG components and calculating the facility of LNG calorific values.
Description
Technical field
The present invention relates to a kind of LNG handling continuous sampling analytical equipment and application method, specifically it is used on one kind
The discharging of LNG receiving stations harbours, the entrucking of LNG tank cars, the continuous sampling analytical equipment of LNG filling stations and application method, belong to liquefaction
Natural gas sampling and analysing technical field.
Background technology
LNG has become the whole world and increases one of most swift and violent energy industry, China as safely and efficiently clean energy resource
Development to LNG industries is increasingly paid attention to, LNG receiving stations covering Guangdong, Fujian, Zhejiang that China has gone into operation and planned
The quantity of the provinces such as river, Shanghai, Jiangsu, Shandong, Tianjin, Liaoning and Hebei, mini gas liquefaction plant and LNG filling stations is more
Many, LNG handling are the important steps all referred in above-mentioned yard, are broadly divided into shipping, tank car transport and filling station etc., shipping
LNG is carried on trade clearing with energy unit, and LNG components are the key parameters of LNG density and unit calorific value calculation, and analysis result is straight
Connect the particular number and quality judging of influence LNG trade transaction meterings.Because LNG is the liquid mixture of ultralow temperature and easily gas
Change, liquid all easily produces the Quick Fraction gasification of component under fine temperature and pressure variations influence, obtain it is real, can
Represent liquid mixture in pipeline than flowing LNG samples, there is very big difficulty, therefore, LNG samples must be protected before gasification
Supercooled state is held, there must not be any component fractionation to gasify, it is ensured that gas component mixing ratio is complete with liquid component ratio after gasification
Unanimously.
The key link of LNG tank cars transport sampling analysis device is identical with shipping methods, and at present, the transport of LNG tank cars is state
Interior Large LNG receiving station, the sole support of small liquid factory liquid distribution, LNG imports all using energy meter mode, but
It is defeated outside tank car to use mass metrology all the time, imported and exported in receiving station and had differences in management, therefore most receiving stations use gasification
Outer defeated gas component carries out the calorific value calculation of liquid LNG, but pipeline is outer defeated different from liquid is distributed LNG supplied materials, for example, having
The outer defeated BOG boil-off gas from LNG storage tank of Shi Guandao gas, and the distribution of LNG liquid comes from low pressure output pump, the two component is present
Difference；Part receiving station considers the differentiation of Downstream Market, and the resource to the outer defeated and liquid distribution of pipeline carries out differential management
And transmission ＆ distribution；Part receiving station faces and first build tank car developing target market, after build pipeline and improve the current demand of production capacity, it is necessary to for tank car list
Solely configure sampling analysis device.Therefore, tank car transport also faces the current demand of LNG sampling analysis devices.Additionally, LNG is filled
Stand as downstream point-of-sale terminal, either consider the main trend of energy meter, still meet demand of the client to exotic fuels,
Also the trend that oriented caloricity gaging develops, therefore, LNG filling stations are increasingly urgent to the demand of LNG sampling analysis devices.
There is problems with conventional LNG sampling analysis devices：(1) decompressor or band gasification function are set before gasification
Decompression valve, in turn result in LNG samples and gasify in advance.(2) heater power is not enough or unadjustable, it is impossible to meet different
The heat demand of LNG gasification under sampling operating mode, and gasification is unstable, causes LNG samples to gasify uneven.(3) only from
Two links of sampling probe and gasifier are designed, and lack the Completeness Design of whole sampler.
The content of the invention
Regarding to the issue above, LNG samples can be suppressed it is an object of the invention to provide one kind to gasify in advance, ensure LNG samples
LNG handling continuous sampling analytical equipment and application method that product gasify uniform and applied widely.
To achieve the above object, the present invention takes following technical scheme：Continuous sampling analytical equipment is used in a kind of LNG handling,
Characterized in that, the sampling analysis device includes LNG sampling probes, gasification installation, sampling main pipe rail, BOG return mechanisms, online
Analytical equipment, volume control device, sample caisson, sample steel cylinder fill system and control system；The LNG sampling probes
The gasification installation import is connected by isolating shut-off valve and detector unit, the gasification installation outlet is by the sampling
Main pipe rail connects the BOG return mechanisms；Gasification installation outlet also by the sampling main pipe rail connect respectively it is described
Line analysis device and volume control device, the volume control device are also connected with the sample caisson import, the sample
The caisson outlet connection sample steel cylinder fill system, the sample steel cylinder fill system is also connected with house steward BOG；Institute
State isolation shut-off valve, detector unit, sampling main pipe rail, volume control device, sample caisson and the filling of sample steel cylinder
System is electrically connected the control system.
Preferably, the gasification installation includes gasifier, gasifier inlet temperature detecting element, the inspection of gasifier exit temperature
Element, gasifier internal temperature detecting element and outlet pressure transmitter are surveyed, wherein, the gasifier is gasified using electrical heating type
Device；The gasifier import is provided for the gasifier inlet temperature detecting element of LNG sample temperatures before detection gasification, institute
State the gasifier exit detector unit that gasifier exit is provided for gaseous sample temperature after detection gasification, the gas
Change the gasifier internal temperature detecting element that temperature change during detection LNG samples gasify is provided in device, it is described
Gasifier exit outlet pressure transmitter of gas sample pressure after for detecting gasification connects the sampling house steward
Road.
Preferably, safety valve, main pipe rail flowmeter, pressure control device and are disposed with the sampling main pipe rail
Level surge tank, wherein, the pressure control device includes pressure-regulating valve, pressure transmitter and pressure controller, the pressure
Regulating valve, pressure transmitter and pressure controller form primary Ioops, and the pressure transmitter is used to detect that entering the sample to store up
The pressure of the gaseous sample and pressure data that will be detected is sent to the pressure controller and control system before device of air, it is described
Pressure controller is used for the aperture of the control and regulation pressure-regulating valve according to the control system；The gasification installation outlet
The BOG return mechanisms and pressure control device, the safety valve are connected by the safety valve and main pipe rail flowmeter respectively
House steward BOG is also connected with, the pressure control device is also connected with the first-level buffer tank import.
Preferably, the BOG return mechanisms include first manual ball valve and first check-valve；The main pipe rail flowmeter leads to
Cross the first manual ball valve and first check-valve connects house steward BOG.
Preferably, the on-line analysis device includes bypass flow meter, in-line analyzer and the second manual ball valve；Described one
Level surge tank outlet connects the bypass flow meter and in-line analyzer respectively, between the bypass flow meter and in-line analyzer
Pipeline on be provided with second manual ball valve.
Preferably, the volume control device includes flow control valve, flow detecting element and flow controller, the stream
Adjustable valve, flow detecting element and flow controller form primary Ioops；The flow detecting element is used to detect described in
The flow of gaseous sample and the data on flows that will be detected are sent to the flow controller and control is before sample caisson
System, the flow controller is used for the aperture of the control and regulation flow control valve according to the control system.
Preferably, the sample caisson includes sample air accumulator, compressor and vacuum extractor；The flow control
Device connects the sample air accumulator air inlet by the first pneumatic ball valve, and the sample air accumulator gas outlet is by the compression
Machine connects the second pneumatic ball valve, and the sample air accumulator is also connected with the vacuum extractor, and the volume control device also passes through
3rd pneumatic ball valve connects the sample steel cylinder fill system.
Preferably, the sample steel cylinder fill system includes pressure detecting element, the 4th pneumatic ball valve, sampling line and takes
Sample steel cylinder, wherein, the sampling line includes sampling inlet pipe and sampling outlet pipe, and the 5th Pneumatic ball is provided with the sampling inlet pipe
Valve, the 6th pneumatic ball valve is provided with sampling outlet pipe；The outlet connection sample introduction of second pneumatic ball valve and the 3rd pneumatic ball valve
The institute for detecting gas sample pressure in sampling steel cylinder is provided with the import of main line, and the import of the sample introduction main line
State pressure detecting element, the sample introduction main line is connected in parallel four sampling inlet pipe imports, the sample introduction main line goes out
Mouth connection the 4th pneumatic ball valve；Four sampling outlet pipes outlets are connected in parallel out the import of sample main line, and it is described go out
Be provided with the pressure detecting element on sample main line, it is described go out sample main line outlet connect the 4th pneumatic ball valve, two
The sampling steel cylinder is removably arranged at the outlet of sampling inlet pipe and sampling outlet pipe import of any sampling line, described
Sample introduction main line and go out after sample main line converges house steward BOG is connected by second check-valve.
Preferably, the control system uses PLC, and pressure control module, stream are provided with the control system
Amount control module, timing settings module, valve control module, fault detection module and interlock protection module；The Stress control
Module is used to control the aperture regulation of the pressure-regulating valve to enter by the pressure controller according to the pressure data for detecting
Enter the pressure of the sample caisson gaseous sample, realize the voltage stabilizing regulation of gaseous sample；The flow-control module is used for
The aperture regulation of the flow control valve is controlled to enter the sample by the flow controller according to the data on flows for detecting
The flow of product caisson gaseous sample, realizes the current stabilization regulation of gaseous sample；The timing settings module is used to set whole
The sequential of all flows of sampling analysis process, and the flow of setting is sent to the valve control module；The Valve controlling
Module is used to control opening or closing for the described first~the 6th pneumatic ball valve, and then controls the beginning or end of each flow；The event
The pressure of LNG samples, temperature and flow when barrier detection module is used to pre-set normal gasification, when by temperature detection unit
Part and temperature, the pressure or the main pipe rail of the outlet pressure transmitters sense of the detection of gasifier outlet temperature detecting element
Abnormal signal to the interlock protection module is sent during the Traffic Anomaly of flowmeter detection；The interlock protection module connects for working as
The isolation shut-off valve is controlled to close when receiving abnormal signal.
It is a kind of based on the above-mentioned LNG handling application method of continuous sampling analytical equipment, it is characterised in that including following interior
Hold：Two sampling steel cylinders are arranged on any two sampling line, by timing settings module to the stream of whole sampling analysis process
Cheng Jinhang sets；Manually opened first manual ball valve and the second manual ball valve, main pipe line will be loaded and unloaded by LNG steels sampling probe
Interior LNG samples take out, and LNG samples fully gasify in gasification installation, if now fault detection module detects gasifier
Abnormal signal is sent when exit gas superpressure, temperature or Traffic Anomaly to interlock protection module, it is urgent by interlock protection module
Cut-out isolation shut-off valve, it is corresponding when if desired overhauling to close manual ball valve and the second manual ball valve；Gaseous sample after gasification exists
Pressure control module enters after the voltage stabilizing of pressure control device is adjusted and is tentatively mixed in first-level buffer tank, by valve
Control module controls the first pneumatic ball valve, the second pneumatic ball valve, the 5th pneumatic ball valve and the 6th pneumatic ball valve to close, the 3rd pneumatic
The 4th pneumatic ball valve above ball valve and sampling steel cylinder is opened, and is carried out pipeline to sample steel cylinder fill system by gaseous sample and is blown
Sweep；Control the 4th pneumatic ball valve above the 3rd pneumatic ball valve and sampling steel cylinder to close by valve control module, it is the 6th pneumatic
The 4th pneumatic ball valve below ball valve and sampling steel cylinder is opened, and sample steel cylinder fill system pipeline is vented by gaseous sample；
The closing of the 4th pneumatic ball valve, the first pneumatic ball valve below the 6th pneumatic ball valve and sampling steel cylinder are controlled by valve control module
Open, gaseous sample enters in sample air accumulator after flow-control module is adjusted by the current stabilization of volume control device, sample
After air accumulator sample introduction terminates, control the first pneumatic ball valve to close by valve control module, make after standing in sample air accumulator
Gaseous sample is sufficiently mixed, and completes sample air accumulator sample introduction；Second pneumatic ball valve, sampling steel cylinder are controlled by valve control module
4th pneumatic ball valve of top and the 5th pneumatic ball valve are opened, and the gaseous sample after being sufficiently mixed is transported to sampling steel through compressor
In bottle, dismantled after two sampling steel cylinders are filled and empty sampling steel cylinder can be replaced as, completed sampling steel cylinder sample introduction, dismounting
Sampling steel cylinder afterwards is used for the off-line analysis of LNG samples；Gaseous sample after gasification is into carrying out LNG samples in in-line analyzer
On-line analysis.
Due to taking above technical scheme, it has advantages below to the present invention：1st, sampling of the present invention after gasification installation
Pressure control device is set on main pipe rail, can overcome conventional product that decompressor or the decompression with gasification function are set before gasification
Regulating valve causes the shortcoming that LNG gasifies in advance, is capable of achieving the continuity sampling of stabilization, keeps authenticity and the representative of gaseous sample
Property.2nd, the present invention is directly heated using electric heater to the LNG in sleeve pipe, and electric heater used occupies little space, it is to avoid
Water-bath or steam-type heater need the shortcoming of extra process heating agent, simple to operate and efficient.3rd, the present invention is complete set
From the LNG continuous sampling analytical equipments for being sampled to analysis (on-line analysis and off-line analysis), conventional device is overcome only from sampling
With the shortcoming that two aspects of gasification were designed, were only applicable to shipping LNG dischargings or tank car entrucking pipeline LNG component analyses, sheet
Invention can be widely applied in the facility for analyzing LNG components and calculating LNG calorific values in need of institute in LNG industrial chains.
Brief description of the drawings
Fig. 1 is overall structure diagram of the invention.
Specific embodiment
Detailed description is carried out to the present invention below in conjunction with accompanying drawing.It should be appreciated, however, that accompanying drawing has been provided only more
Understand the present invention well, they should not be interpreted as limitation of the present invention.In the description of the invention, it is to be understood that
Term " first ", " second " etc. be only used for description purpose, and it is not intended that indicate or imply relative importance, it is necessary to
What is illustrated is that connection in the present invention between each device is attached by pipeline.
As shown in figure 1, LNG handling of the invention with sampling analysis device include LNG sampling probes 1, isolation shut-off valve 2,
Detector unit 3, gasification installation 4, sampling main pipe rail 5, BOG return mechanisms 6, house steward BOG 7, on-line analysis device 8, flow
Control device 9, sample caisson 10, sample steel cylinder fill system 11 and control system (not shown).
The one end of LNG sampling probes 1 connects handling main pipe line (including LNG dischargings house steward and tank car entrucking house steward by flange
Deng), the LNG samples that LNG sampling probes 1 are used to load and unload in main pipe line are taken out, and the other end of LNG sampling probes 1 is closed by isolating
Disconnected valve 2 and the connection import of gasification installation 4 of detector unit 3, gasification installation 4 are used to for LNG samples to carry out internal gasifier.Gasification
Device 4 is exported and connects the one end of BOG return mechanisms 6 by sampling main pipe rail 5, and the other end of BOG return mechanisms 6 connects house steward BOG 7,
BOG return mechanisms 6 are used to for unnecessary LNG samples to be back to house steward BOG 7.Gasification installation 4 is exported also by sampling main pipe rail 5
Line analysis device 8 and volume control device 9 are connected to, sampling main pipe rail 5 is used to press the gaseous sample after gasification
Power is adjusted and preliminary mixing, and on-line analysis device 8 is used to carry out on-line analysis, volume control device to the gaseous sample after gasification
9 are used to carry out gaseous sample Flow-rate adjustment, and volume control device 9 is also connected with the import of sample caisson 10, sample gas storage dress
10 outlets connection sample steel cylinder fill system 11 is put, sample caisson 10 is used to be sufficiently mixed gaseous sample and be punched into sample
Product steel cylinder fill system 11, the gaseous sample that sample steel cylinder fill system 11 is used to store after gasification carries out off-line analysis, sample
Steel cylinder fill system 11 is also connected with house steward BOG 7；In addition, isolation shut-off valve 2, detector unit 3, sampling main pipe rail 5, flow
Control device 9, sample caisson 10 and sample steel cylinder fill system 11 are electrically connected control system.
In a preferred embodiment, gasification installation 4 includes gasifier 4-1, gasifier inlet temperature detecting element 4-
2nd, gasifier exit detector unit 4-3, gasifier internal temperature detecting element 4-4 and outlet pressure transmitter 4-5.Gasification
Device 4-1 imports are provided for the gasifier inlet temperature detecting element 4-2 of LNG sample temperatures before detection gasification, and gasifier 4-1 goes out
Mouth is provided for being set in gasifier exit the detector unit 4-3, gasifier 4-1 of gaseous sample temperature after detection is gasified and uses
Gasifier internal temperature detecting element 4-4, gasifier the 4-1 outlet of temperature change passes through during detection LNG sample gasifications
Outlet pressure transmitter 4-5 connection sampling main pipe rails 5, outlet pressure transmitter 4-5 is used for the pressure of gaseous sample after detection gasification
Power.
In a preferred embodiment, safety valve 5-1, main pipe rail flowmeter 5- are disposed with sampling main pipe rail 5
2nd, pressure control device 5-3 and first-level buffer tank 5-4.The outlet of gasification installation 4 passes through safety valve 5-1 and main pipe rail flowmeter 5-2
Connection BOG return mechanisms 6 and pressure control device 5-3, safety valve 5-1 are also connected with house steward BOG 7 respectively, and safety valve 5-1 is used to prevent
Only there is superpressure danger in LNG handling of the invention sampling analysis device, and main pipe rail flowmeter 5-2 is used for measurement sampling in real time always
The flow of pipeline 5, pressure control device 5-3 is also connected with first-level buffer tank 5-4 imports, and pressure control device 5-3 is used to prevent from taking
The pressure oscillation of sample main pipe rail 5 is excessive, it is ensured that gaseous sample enters first-level buffer tank 5-4, first-level buffer tank 5-4 with uniform pressure
For the preliminary mixing of gaseous sample.
In a preferred embodiment, pressure control device 5-3 includes pressure-regulating valve 5-3-1, pressure transmitter 5-
3-2 and pressure controller 5-3-3, and pressure-regulating valve 5-3-1, pressure transmitter 5-3-2 and pressure controller 5-3-3 form one
Loop, pressure transmitter 5-3-2 is used for the pressure that detect the pressure into gaseous sample before sample caisson 10 and will detect
Force data is sent to pressure controller 5-3-3 and control system, and pressure controller 5-3-3 is used to be adjusted according to the control of control system
The aperture of section pressure-regulating valve 5-3-1.
In a preferred embodiment, BOG return mechanisms 6 include first manual ball valve 6-1 and first check-valve 6-2,
Main pipe rail flowmeter 5-2 connects house steward BOG 7 by first manual ball valve 6-1 and first check-valve 6-2.First manual ball valve 6-1
The connection of BOG return mechanisms 6 and sampling main pipe rail 5 is cut off when being overhauled for first check-valve 6-2, first check-valve 6-2 is used for
Prevent the BOG gases in house steward BOG 7 from entering into sampling main pipe rail 5.
In a preferred embodiment, on-line analysis device 8 includes bypass flow meter 8-1, in-line analyzer 8-2 and the
Two manual ball valve 8-3, first-level buffer tank outlet 5-4 connects bypass flow meter 8-1 and in-line analyzer 8-2, branch respectively by the road
Flowmeter 8-1 in road is used for the flow that measurement in real time enters gaseous sample in on-line analysis device 8, bypass flow meter 8-1 and online
The second manual ball valve 8-3 is provided with pipeline between analyzer 8-2.
In a preferred embodiment, volume control device 9 include flow control valve 9-1, flow detecting element 9-2 and
Flow controller 9-3, and flow control valve 9-1, flow detecting element 9-2 and flow controller 9-3 form primary Ioops, flow inspection
Element 9-2 is surveyed to be sent to for detecting the flow into gaseous sample before sample caisson 10 and the data on flows that will be detected
Flow controller 9-3 and control system, flow controller 9-3 are used for the control and regulation flow control valve 9-1 according to control system
Aperture.
In a preferred embodiment, sample caisson 10 includes sample air accumulator 10-1, the first pneumatic ball valve 10-
2nd, the second pneumatic ball valve 10-3, the 3rd pneumatic ball valve 10-4, compressor 10-5 and vacuum extractor 10-6.Volume control device 9
Sample air accumulator 10-1 air inlets are connected by the first pneumatic ball valve 10-2, the volume of sample air accumulator 10-1 can meet sampling
Continuity sampling in cycle, sample air accumulator 10-1 gas outlets connect the second pneumatic ball valve 10-3 by compressor 10-5, the
One pneumatic ball valve 10-2 and the second pneumatic ball valve 10-3 is used to realize the sample introduction of sample air accumulator 10-1 and goes out sample, and makes gas sample
Product are sufficiently mixed in sample air accumulator 10-1, and compressor 10-5 is used for well-mixed gas sample in sample air accumulator 10-1
Product are transported in sample steel cylinder fill system 11, and sample air accumulator 10-1 is also connected with vacuum extractor 10-6, vacuum extractor 10-
6 vacuum states for being used to after sampling terminates keep sample air accumulator 10-1.Volume control device 9 also passes through the 3rd pneumatic ball valve
10-4 connections sample steel cylinder fill system 11, the 3rd pneumatic ball valve 10-4 is used for sample in sample air accumulator 10-1 sample introductions front opening
Interference impurity emptying in product steel cylinder fill system 11.
In a preferred embodiment, sample steel cylinder fill system 11 includes that a sample introduction main line 11-1, one go out sample master
Pipeline 11-2, two pressure detecting element 11-3, two the 4th pneumatic ball valve 11-4, four sampling line 11-5 (two of which
Be spare duct), a two sampling steel cylinder 11-6 and second check-valve 11-7, wherein, each sampling line 11-5 includes
An one sampling inlet pipe 11-5-1 and sampling outlet pipe 11-5-2, one the 5th pneumatic ball valve is provided with each sampling inlet pipe 11-5-1
11-5-3, one the 6th pneumatic ball valve 11-5-4 is provided with each sampling outlet pipe 11-5-2.Second pneumatic ball valve 10-3 and
The import of the outlet connection sample introduction main line 11-1 of three pneumatic ball valve 10-4, and it is provided with pressure at the import of sample introduction main line 11-1
Power detecting element 11-3, sample introduction main line 11-1 are connected in parallel four sampling inlet pipe 11-3 imports, and sample introduction main line 11-1's goes out
One the 4th pneumatic ball valve 11-4 of mouth connection；Four sampling outlet pipe 11-3 outlets are connected in parallel out the import of sample main line 11-2, and
Go out on sample main line 11-2 and be provided with pressure detecting element 11-3, the outlet for going out sample main line 11-2 connects another 4th Pneumatic ball
Valve 11-4, pressure detecting element 11-3 are used to detect the pressure of gaseous sample in sampling steel cylinder 11-6, and two sampling steel cylinder 11-6 can
The sampling inlet pipe 11-5-1 of any sampling line 11-5 that is arranged on of dismounting is exported and sampled at outlet pipe 11-5-2 imports, sample introduction master
Pipeline 11-1 and go out after sample main line 11-2 converges by second check-valve 11-7 connect house steward BOG 7.
In a preferred embodiment, control system can use PLC, and pressure control is provided with control system
Molding block, flow-control module, timing settings module, valve control module, fault detection module and interlock protection module.Pressure
Control module is used for the aperture for passing through pressure controller 5-3-3 control pressure regulating valves 5-3-1 according to the pressure data for detecting
Regulation enters the pressure of the gaseous sample of sample caisson 10, realizes the voltage stabilizing regulation of gaseous sample.Flow-control module is used for
The aperture regulation of flow control valve 9-1 is controlled to enter sample gas storage by flow controller 9-3 according to the data on flows for detecting
The flow of the gaseous sample of device 10, realizes the current stabilization regulation of gaseous sample.Timing settings module is used to set whole sampling analysis
The sequential of all flows of process, flow include pipeline purging, pipeline emptying, sample air accumulator sample introduction, sampling steel cylinder sample introduction and
On-line analysis, and the flow of setting is sent to valve control module.Valve control module is used to control the first pneumatic ball valve 10-
2nd, the second pneumatic ball valve 10-3, the 3rd pneumatic ball valve 10-4, the 4th pneumatic ball valve 11-4, the of the 5th pneumatic ball valve 11-5-3 sums
Six pneumatic ball valve 11-5-4 are opened or closed, and then control the beginning or end of each flow.Fault detection module is used to pre-set just
The pressure of LNG samples, temperature and flow when often gasifying, when by detector unit 3 and change device outlet temperature detecting element 4-3
Send different during the Traffic Anomaly of the temperature, the pressure of outlet pressure transmitter 4-5 detections or main pipe rail flowmeter 5-2 detections of detection
Regular signal is to interlock protection module.Interlock protection module is used to control isolation shut-off valve 2 to close when abnormal signal is received.
In a preferred embodiment, the outside of LNG sampling probes 1 is incubated using nano material, and LNG samplings are visited
Connecting line between first 1 and gasifier 4-1 is less than 0.5m, it is ensured that meets degree of supercooling requirement, can effectively suppress LNG samples and carry
It is preceding to be fractionated.
In a preferred embodiment, gasifier 4-1 can use electrical heating type gasifier 4-1, can be according to difference
The power of the LNG samples adjustment gasifier 4-1 of component and flow, it is ensured that LNG samples being capable of instantaneous gas completely in gasifier 4-1
Change.
Describe the application method of LNG handling of the present invention continuous sampling analytical equipment in detail below by specific embodiment：
1) two sampling steel cylinder 11-6 are arranged on any two sampling lines 11-5, by timing settings module to entirely taking
The flow of sample analysis process is set, and is below pipeline purging, pipeline emptying, sample air accumulator sample introduction, sampling steel with flow
Illustrated as a example by bottle sample introduction and on-line analysis.
2) manually opened first manual ball valve 6-1 and the second manual ball valve 8-3, will be loaded and unloaded by LNG steels sampling probe 1
LNG samples in main pipe line take out, and LNG samples fully gasify in gasification installation 4, if now fault detection module detects gas
Abnormal signal is sent when exit gas superpressure, temperature or the Traffic Anomaly of changing device 4-1 to interlock protection module, by interlock protection
Module emergency cut-off isolates shut-off valve 2, and first manual ball valve 6-1 and the second manual ball valve can be accordingly closed when if desired overhauling
8-3。
3) gaseous sample after gasifying enters one after pressure control module is adjusted by the voltage stabilizing of pressure control device 5-3
Tentatively mixed in level surge tank 5-4, the first pneumatic ball valve 10-2, the second pneumatic ball valve are controlled by valve control module
10-3, the 5th pneumatic ball valve 11-5-3 and the 6th pneumatic ball valve 11-5-4 are closed, the 3rd pneumatic ball valve 10-4 and sampling steel cylinder 11-
4th pneumatic ball valve 11-4 of 6 tops is opened, and pipeline purging is carried out to sample steel cylinder fill system 11 by gaseous sample.
4) the 4th Pneumatic ball above the 3rd pneumatic ball valve 10-4 and sampling steel cylinder 11-6 is controlled by valve control module
The 4th pneumatic ball valve 11-4 below valve 11-4 closings, the 6th pneumatic ball valve 11-5-4 and sampling steel cylinder 11-6 is opened, by gas
Body sample carries out pipeline emptying to sample steel cylinder fill system 11.
5) it is pneumatic by the 4th below valve control module control the 6th pneumatic ball valve 11-5-4 and sampling steel cylinder 11-6
Ball valve 11-4 is closed, the first pneumatic ball valve 10-2 is opened, and gaseous sample is in flow-control module by the steady of volume control device 9
Enter in sample air accumulator 10 after stream regulation, after the sample introduction of sample air accumulator 10 terminates, the first gas is controlled by valve control module
Dynamic ball valve 10-2 is closed, and in sample air accumulator 10 gaseous sample is sufficiently mixed after standing 5~10 minutes, completes sample gas storage
Tank sample introduction.
6) the 4th pneumatic ball valve above the second pneumatic ball valve 10-3, sampling steel cylinder 11-6 is controlled by valve control module
11-4 and the 5th pneumatic ball valve 11-5-3 is opened, and the gaseous sample after being sufficiently mixed is transported to sampling steel cylinder through compressor 10-5
In 11-6, dismantled after two sampling steel cylinder 11-6 are filled and empty sampling steel cylinder 11-6 can be replaced as, completed sampling steel
Bottle sample introduction, the sampling steel cylinder 11-6 after dismounting is used for the off-line analysis of LNG samples；Gaseous sample after gasification can also pass into
The on-line analysis of LNG samples is carried out in line analysis instrument 8-2.
The various embodiments described above are merely to illustrate the present invention, wherein the structure of each part, connected mode and manufacture craft etc. are all
Can be what is be varied from, every equivalents carried out on the basis of technical solution of the present invention and improvement should not be excluded
Outside protection scope of the present invention.
Claims (10)
1. continuous sampling analytical equipment use in a kind of LNG handling, it is characterised in that the sampling analysis device including LNG sampling probes,
Gasification installation, sampling main pipe rail, BOG return mechanisms, on-line analysis device, volume control device, sample caisson, sample steel
Bottle fill system and control system；
The LNG sampling probes connect the gasification installation import, the gasification by isolating shut-off valve and detector unit
Device outlet connects the BOG return mechanisms by the sampling main pipe rail；The gasification installation outlet is also by the sampling
Main pipe rail connects the on-line analysis device and volume control device respectively, and the volume control device is also connected with the sample storage
Device of air import, the sample caisson outlet connection sample steel cylinder fill system, the sample steel cylinder fill system
It is also connected with house steward BOG；
The isolation shut-off valve, detector unit, sampling main pipe rail, volume control device, sample caisson and sample steel
Bottle fill system is electrically connected the control system.
2. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 1, it is characterised in that the gasification installation
Including gasifier, gasifier inlet temperature detecting element, gasifier exit detector unit, gasifier internal temperature detection unit
Part and outlet pressure transmitter, wherein, the gasifier uses electrical heating type gasifier；The gasifier import is provided for inspection
The gasifier inlet temperature detecting element of the preceding LNG sample temperatures of gasification is surveyed, the gasifier exit is provided for detecting gas
The gasifier exit detector unit of gaseous sample temperature after change, is provided for detecting LNG samples in the gasifier
The gasifier internal temperature detecting element of temperature change in gasification, the gasifier exit is by for detecting gasification
The outlet pressure transmitter of gas sample pressure connects the sampling main pipe rail afterwards.
3. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 2, it is characterised in that the sampling house steward
Safety valve, main pipe rail flowmeter, pressure control device and first-level buffer tank are disposed with road, wherein, the Stress control
Device includes pressure-regulating valve, pressure transmitter and pressure controller, the pressure-regulating valve, pressure transmitter and Stress control
Device forms primary Ioops, and the pressure transmitter is used for detection simultaneously will inspection into the pressure of gaseous sample before the sample caisson
The pressure data for measuring is sent to the pressure controller and control system, and the pressure controller is used for according to the control system
The aperture of the control and regulation pressure-regulating valve of system；The gasification installation outlet passes through the safety valve and main pipe rail flowmeter
The BOG return mechanisms and pressure control device are connected respectively, and the safety valve is also connected with house steward BOG, the pressure control
Device processed is also connected with the first-level buffer tank import.
4. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 3, it is characterised in that the BOG returns to dress
Put including first manual ball valve and first check-valve；The main pipe rail flowmeter is by the first manual ball valve and the first non-return
Valve connects house steward BOG.
5. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 3, it is characterised in that the on-line analysis
Device includes bypass flow meter, in-line analyzer and the second manual ball valve；The first-level buffer tank outlet connects the branch respectively
Road flowmeter and in-line analyzer, are provided with described second manual on the pipeline between the bypass flow meter and in-line analyzer
Ball valve.
6. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 1, it is characterised in that the flow control
Device includes flow control valve, flow detecting element and flow controller, the flow control valve, flow detecting element and flow
Controller forms primary Ioops；The flow detecting element is used to detect the flow into gaseous sample before the sample caisson
And the data on flows that will be detected is sent to the flow controller and control system, the flow controller is used for according to described
The aperture of the control and regulation flow control valve of control system.
7. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 3, it is characterised in that the sample gas storage
Device includes sample air accumulator, compressor and vacuum extractor；The volume control device connects institute by the first pneumatic ball valve
Sample air accumulator air inlet is stated, the sample air accumulator gas outlet connects the second pneumatic ball valve, the sample by the compressor
Product air accumulator is also connected with the vacuum extractor, and the volume control device also connects the sample steel by the 3rd pneumatic ball valve
Bottle fill system.
8. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 7, it is characterised in that the sample steel cylinder
Fill system includes pressure detecting element, the 4th pneumatic ball valve, sampling line and sampling steel cylinder, wherein, the sampling line bag
Sampling inlet pipe and sampling outlet pipe are included, the 5th pneumatic ball valve is provided with the sampling inlet pipe, the is provided with the sampling outlet pipe
Six pneumatic ball valves；
The import of the outlet connection sample introduction main line of second pneumatic ball valve and the 3rd pneumatic ball valve, and the sample introduction master
The pressure detecting element for detecting gas sample pressure in sampling steel cylinder, the sample introduction master are provided with the import of pipeline
Pipeline is connected in parallel four sampling inlet pipe imports, and the outlet of the sample introduction main line connects the 4th pneumatic ball valve；Four
The individual sampling outlet pipe outlet be connected in parallel it is described go out sample main line import, and it is described go out sample main line on be provided with the pressure
Power detecting element, it is described go out sample main line outlet connect the 4th pneumatic ball valve, sampling steel cylinder removably sets described in two
Put at the outlet of sampling inlet pipe and sampling outlet pipe import of any sampling line, the sample introduction main line and go out sample main line
House steward BOG is connected by second check-valve after converging.
9. continuous sampling analytical equipment is used in a kind of LNG handling as claimed in claim 8, it is characterised in that the control system
Using PLC, pressure control module, flow-control module, timing settings module, valve are provided with the control system
Control module, fault detection module and interlock protection module；
The pressure control module is used to control the pressure to adjust by the pressure controller according to the pressure data for detecting
The aperture regulation for saving valve enters the pressure of the sample caisson gaseous sample, realizes the voltage stabilizing regulation of gaseous sample；
The flow-control module is used to control the flow to adjust by the flow controller according to the data on flows for detecting
The aperture regulation for saving valve enters the flow of the sample caisson gaseous sample, realizes the current stabilization regulation of gaseous sample；
The timing settings module is used to set the sequential of the whole all flows of sampling analysis process, and the flow that will be set sends
To the valve control module；
The valve control module is used to control opening or closing for the described first~the 6th pneumatic ball valve, and then controls opening for each flow
Begin or terminate；
The pressure of LNG samples, temperature and flow when the fault detection module is used to pre-set normal gasification, when by described
Detector unit and gasifier outlet temperature detecting element detection temperature, the pressure of the outlet pressure transmitters sense or
Abnormal signal to the interlock protection module is sent during the Traffic Anomaly of the main pipe rail flowmeter detection；
The interlock protection module is used to control the isolation shut-off valve to close when abnormal signal is received.
10. a kind of a kind of LNG handling based on as described in any one of claim 1~9 use of continuous sampling analytical equipment
Method, it is characterised in that including herein below：
Two sampling steel cylinders are arranged on any two sampling line, by timing settings module to the stream of whole sampling analysis process
Cheng Jinhang sets；
Manually opened first manual ball valve and the second manual ball valve, the LNG in main pipe line will be loaded and unloaded by LNG steels sampling probe
Sample takes out, and LNG samples fully gasify in gasification installation, if now fault detection module detects the exit gas of gasifier
Abnormal signal to interlock protection module is sent when superpressure, temperature or Traffic Anomaly, is isolated by interlock protection module emergency cut-off
Shut-off valve, it is corresponding when if desired overhauling to close manual ball valve and the second manual ball valve；
Gaseous sample after gasification enters first-level buffer tank after pressure control module is adjusted by the voltage stabilizing of pressure control device
Inside tentatively mixed, the first pneumatic ball valve, the second pneumatic ball valve, the 5th pneumatic ball valve and the are controlled by valve control module
The 4th pneumatic ball valve above the closing of six pneumatic ball valves, the 3rd pneumatic ball valve and sampling steel cylinder is opened, by gaseous sample to sample
Product steel cylinder fill system carries out pipeline purging；
Control the 4th pneumatic ball valve above the 3rd pneumatic ball valve and sampling steel cylinder to close by valve control module, it is the 6th pneumatic
The 4th pneumatic ball valve below ball valve and sampling steel cylinder is opened, and sample steel cylinder fill system pipeline is vented by gaseous sample；
Control the 4th pneumatic ball valve below the 6th pneumatic ball valve and sampling steel cylinder to close by valve control module, it is first pneumatic
Ball valve is opened, and gaseous sample enters in sample air accumulator after flow-control module is adjusted by the current stabilization of volume control device,
After sample air accumulator sample introduction terminates, control the first pneumatic ball valve to close by valve control module, sample air accumulator is made after standing
Interior gaseous sample is sufficiently mixed, and completes sample air accumulator sample introduction；
The 4th pneumatic ball valve and the 5th pneumatic ball valve above second pneumatic ball valve, sampling steel cylinder is controlled by valve control module
Open, the gaseous sample after being sufficiently mixed is transported in sampling steel cylinder through compressor, is dismantled after two sampling steel cylinders are filled
And empty sampling steel cylinder can be replaced as, and sampling steel cylinder sample introduction is completed, the sampling steel cylinder after dismounting is used for offline point of LNG samples
Analysis；Gaseous sample after gasification is into the on-line analysis that LNG samples are carried out in in-line analyzer.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831049A (en) * | 2017-12-06 | 2018-03-23 | 中海石油气电集团有限责任公司 | Intermittent sampling analytical equipment and its application method are used in a kind of LNG handling |
| CN111024829A (en) * | 2018-10-09 | 2020-04-17 | 中国石油天然气股份有限公司 | Natural gas quality detection system and method |
| CN112432823A (en) * | 2020-11-11 | 2021-03-02 | 上海邦有道商贸有限公司 | Sampling system for natural gas outward transportation main pipe |
| CN114487228A (en) * | 2022-02-08 | 2022-05-13 | 河南省科学院 | Automatic storage and detection system and method for pyrolysis gas or gasified gas |
| WO2023197196A1 (en) * | 2022-04-13 | 2023-10-19 | 中海石油气电集团有限责任公司 | High-compactness lng sampling and gasifying device having self-adaptive function |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472179A (en) * | 2013-09-29 | 2013-12-25 | 中国寰球工程公司 | System for sampling and component analysis of truck loaded finished liquefied natural gas |
| CN204228478U (en) * | 2014-11-21 | 2015-03-25 | 北京凯隆分析仪器有限公司 | Liquefied natural gas (LNG) hand-operated sampling device |
| CN204785571U (en) * | 2015-05-25 | 2015-11-18 | 成都产品质量检验研究院有限责任公司 | Portable liquefied natural gas sampler |
| CN205191228U (en) * | 2015-09-25 | 2016-04-27 | 中海福建天然气有限责任公司 | Device for preventing LNG sample gasifies in advance |
| CN207051276U (en) * | 2017-03-09 | 2018-02-27 | 中国海洋石油总公司 | Continuous sampling analytical equipment is used in a kind of LNG handling |
-
2017
- 2017-03-09 CN CN201710137558.8A patent/CN106802344A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103472179A (en) * | 2013-09-29 | 2013-12-25 | 中国寰球工程公司 | System for sampling and component analysis of truck loaded finished liquefied natural gas |
| CN204228478U (en) * | 2014-11-21 | 2015-03-25 | 北京凯隆分析仪器有限公司 | Liquefied natural gas (LNG) hand-operated sampling device |
| CN204785571U (en) * | 2015-05-25 | 2015-11-18 | 成都产品质量检验研究院有限责任公司 | Portable liquefied natural gas sampler |
| CN205191228U (en) * | 2015-09-25 | 2016-04-27 | 中海福建天然气有限责任公司 | Device for preventing LNG sample gasifies in advance |
| CN207051276U (en) * | 2017-03-09 | 2018-02-27 | 中国海洋石油总公司 | Continuous sampling analytical equipment is used in a kind of LNG handling |
Non-Patent Citations (1)
| Title |
|---|
| 张奕等: "LNG接收站贸易交接在线取样技术", 《天然气与石油》 * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107831049A (en) * | 2017-12-06 | 2018-03-23 | 中海石油气电集团有限责任公司 | Intermittent sampling analytical equipment and its application method are used in a kind of LNG handling |
| CN107831049B (en) * | 2017-12-06 | 2022-11-08 | 北京探能科技有限责任公司 | Intermittent sampling analysis device for LNG loading and unloading and use method thereof |
| CN111024829A (en) * | 2018-10-09 | 2020-04-17 | 中国石油天然气股份有限公司 | Natural gas quality detection system and method |
| CN111024829B (en) * | 2018-10-09 | 2023-02-28 | 中国石油天然气股份有限公司 | Natural gas quality detection system and method |
| CN112432823A (en) * | 2020-11-11 | 2021-03-02 | 上海邦有道商贸有限公司 | Sampling system for natural gas outward transportation main pipe |
| CN114487228A (en) * | 2022-02-08 | 2022-05-13 | 河南省科学院 | Automatic storage and detection system and method for pyrolysis gas or gasified gas |
| CN114487228B (en) * | 2022-02-08 | 2024-01-23 | 河南省科学院 | Pyrolysis gas or gasification gas automatic storage and detection system and method |
| WO2023197196A1 (en) * | 2022-04-13 | 2023-10-19 | 中海石油气电集团有限责任公司 | High-compactness lng sampling and gasifying device having self-adaptive function |
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Application publication date: 20170606 |