CN205958520U - Natural gas online analysis device - Google Patents
Natural gas online analysis device Download PDFInfo
- Publication number
- CN205958520U CN205958520U CN201620933119.9U CN201620933119U CN205958520U CN 205958520 U CN205958520 U CN 205958520U CN 201620933119 U CN201620933119 U CN 201620933119U CN 205958520 U CN205958520 U CN 205958520U
- Authority
- CN
- China
- Prior art keywords
- natural gas
- liquefied natural
- line analyses
- analysis
- valve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a natural gas online analysis device, online analysis module in including liquefied natural gas gas holder, the liquefied natural gas vaporizer that connects gradually by the pipeline and locating analys room, the online analysis module includes chromatograph and water analysis appearance, be equipped with the liquefied natural gas outlet valve on the liquefied natural gas gas holder, the liquefied natural gas outlet valve is connected to the entry of liquefied natural gas vaporizer, the export of liquefied natural gas vaporizer is connected to chromatograph and water analysis appearance respectively through analys room import valve. The utility model discloses change the liquified natural gas into and send into the instrument behind the gaseous state and carry out the analysis, improve the accuracy of natural gas analysis, easy operation, safety ring protects.
Description
Technical field
This utility model is related to gas analyses field and in particular to a kind of on-line analyses device for natural gas gas.
Background technology
In prior art, natural gas is compressed, become liquid after cooling, becomes liquefied natural gas (abbreviation LNG).Liquefaction sky
So gas is commonly stored in cryogenic tank, and its volume is about the 1/600 of commensurability gaseous natural gas volume, with compressed natural gas (CNG)
Compare, compression ratio is about high 3 times, is easy to by vehicles long distance transportation.Since 20 century 70s, world's liquefaction is natural
Gas yield and volume of trade increase sharply.China builds big and small various liquefied natural gas plant, and from a large amount of imports abroad
LNG.LNG can be used on generating, glass and ceramic manufacture, small and medium-sized cities domestic gas, the standby peak regulation of big and medium-sized cities natural gas and LNG
The aspects such as automobile.With the continuous growth to energy demand for the country, LNG is to the energy resource structure optimizing China, the effectively solving energy
The problems such as supply security, ecological environmental protection, realize economic and society sustainable development and play an important role.
In gas deliquescence process, natural gas needs through dehydration, de- hydrocarbon (weight Hydrocarbon), removing sour gas
Process, for certain form of natural gas it is also possible to need through processes such as desulfurization, demercuration, de- benzene, then could be using deep
Cold technique makes it become liquid.LNG product generally could need be used after gasification, and its constituent decides the close of it
The parameters closely related with product quality such as degree, calorific value and rate of gasification.
In liquefied natural gas, main component methane volumetric percentage composition accounts for more than 90%, also contains a small amount of ethane, propane, nitrogen
With other micro constitutents.At present, the supplied materials analysis of natural gas is faced with many problems, first with the process analyses such as production, finished product
Be the real effectiveness of sampling, take the gas phase of liquified natural gas, can not reflecting liquid natural gas completely true component, because
This, liquid natural gas to be taken are analyzed.However, conventional analytical tool can only analyze gaseous products, so, liquid natural gas
First to be changed into gaseous state, to enter back into analytical tool and be analyzed.
Content of the invention
Goal of the invention of the present utility model is to provide a kind of natural gas on-line analyses device, and liquified natural gas is changed into gas
Send into instrument after state to be analyzed, improve the accuracy of Natural Gas Analysis, simple to operate, safety and environmental protection.
To achieve the above object of the invention, the technical solution adopted in the utility model is：A kind of natural gas on-line analyses device,
Including the liquefied natural gas air accumulator being sequentially connected by pipeline, liquified natural gas vaporizer and the on-line analyses located at analysis interior
Module, described on-line analyses module includes chromatograph and moisture analyser, and described liquefied natural gas air accumulator is provided with liquefaction sky
So gas outlet valve, described liquefied natural gas outlet valve is connected to the entrance of liquified natural gas vaporizer, described liquefied natural gas vapour
The outlet changing device is connected respectively to chromatograph and moisture analyser through analysis room's inlet valve.
Above, described moisture analyser can adopt moisture Halo analyser.
Described liquified natural gas vaporizer can be with existing existing equipment.
Preferably, the outlet of described liquified natural gas vaporizer is additionally provided with the first branch pipe(tube), and described first branch pipe(tube) sets
There is relief valve.
Preferably, it is provided with pressure gauge and thermometer between described liquified natural gas vaporizer and analysis room's inlet valve.
Preferably, it is additionally provided with filter between described analysis room inlet valve and on-line analyses module.
Further, it is provided with the second branch pipe(tube) between described filter and on-line analyses module, on described second branch pipe(tube)
It is provided with nitrogen inlet valve.
Further, the pipeline being connected to described on-line analyses module is provided with purge vent check valve.
Preferably, it is connected with the first emptying check valve after described chromatograph；It is connected with second after described moisture analyser to put
Empty check valve.
Because technique scheme is used, this utility model compared with prior art has following advantages：
1. this utility model overcomes the problem of the real effectiveness that cannot ensure liquefied natural gas sampling in prior art,
Complete in on-line analyses module to analyze by sending into after liquefied natural gas vaporization, can accurately know the impurity content in natural gas, behaviour
Make simple and convenient；
2. this utility model adds nitrogen intake valve and purge vent check valve between filter and on-line analyses module,
Before natural gas is analyzed, first with nitrogen, tubing is purged, and purge gas are passed through purge vent list
To valve emptying, it is prevented effectively from the impact of the accuracy to analysis for the foreign gas present in tubing.
Brief description
Fig. 1 is this utility model structural representation in embodiment one.
Wherein：1st, liquefied natural gas air accumulator；2nd, liquified natural gas vaporizer；3rd, chromatograph；4th, moisture Halo analyser；
5th, liquefied natural gas outlet valve；6th, analysis room's inlet valve；7th, relief valve；8th, pressure gauge；9th, thermometer；10th, filter；11st, nitrogen
Gas inlet valve；12nd, purge vent check valve；13rd, the first emptying check valve；14th, the second emptying check valve.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment is further described to this utility model：
Embodiment one：
Shown in Figure 1, a kind of natural gas on-line analyses device, including the liquefied natural gas gas storage being sequentially connected by pipeline
Tank 1, liquified natural gas vaporizer 2 and the on-line analyses module located at analysis interior, described on-line analyses module includes chromatograph 3
With moisture Halo analyser 4, described liquefied natural gas air accumulator is provided with liquefied natural gas outlet valve 5, described liquefied natural gas
Outlet valve is connected to the entrance of liquified natural gas vaporizer, and the outlet of described liquified natural gas vaporizer is through analysis room's inlet valve 6
It is connected respectively to chromatograph and moisture Halo analyser.
In the present embodiment, it is the safety of lifting device, is additionally provided with first in the outlet of described liquified natural gas vaporizer
Branch pipe(tube), described first branch pipe(tube) is provided with relief valve 7, meanwhile, in described liquified natural gas vaporizer and analysis room's inlet valve
Between be provided with pressure gauge 8 and thermometer 9.
Be additionally provided with filter 10 between described analysis room inlet valve and on-line analyses module, for filter out in gas
Grain thing impurity, in order to avoid particulate matter Failure analysis instrument.
It is noted that being provided with the second branch pipe(tube) between described filter and on-line analyses module, described second arm
Road is provided with nitrogen inlet valve 11, and the pipeline being connected to described on-line analyses module is provided with purge vent check valve 12, right
Before natural gas is analyzed, needs first to open nitrogen inlet valve, with nitrogen, tubing is purged, in order to avoid there being impurity gas
Body produces interference to test gas, and purge gas are vented by purge vent check valve, then natural gas to be measured is introduced
Respectively natural gas is carried out in chromatograph and moisture Halo analyser with light component and the analysis test of moisture, the waste gas tested divides
The second emptying check valve 14 not after the first emptying check valve 13 after chromatograph and moisture Halo analyser is vented.
It is pointed out that in all pipelines of the present utility model, on the basis of the flow direction of natural gas, in analysis room's import
Pipeline before valve is all using 1/4 inch line；Pipeline after analysis room's inlet valve is all using 1/8 inch line.In liquid
Changing in natural gas air accumulator has two sampling pipes, the top reaching liquefied natural gas air accumulator, removes liquefied natural gas
Gas phase, another bottom reaching liquefied natural gas air accumulator, go the liquid phase of liquefied natural gas, two sampling pipes pass through respectively
Two liquefied natural gas outlet valves are controlled switching.
Claims (7)
1. a kind of natural gas on-line analyses device it is characterised in that：Including the liquefied natural gas air accumulator being sequentially connected by pipeline,
Liquified natural gas vaporizer and the on-line analyses module located at analysis interior；
Described on-line analyses module includes chromatograph and moisture analyser；
Described liquefied natural gas air accumulator is provided with liquefied natural gas outlet valve, and described liquefied natural gas outlet valve is connected to liquefaction
The entrance of natural gas vaporizer, the outlet of described liquified natural gas vaporizer through analysis room's inlet valve be connected respectively to chromatograph and
Moisture analyser.
2. natural gas on-line analyses device according to claim 1 it is characterised in that：Described liquified natural gas vaporizer
Outlet is additionally provided with the first branch pipe(tube), and described first branch pipe(tube) is provided with relief valve.
3. natural gas on-line analyses device according to claim 1 it is characterised in that：Described liquified natural gas vaporizer with
It is provided with pressure gauge and thermometer between analysis room's inlet valve.
4. natural gas on-line analyses device according to claim 1 it is characterised in that：Described analysis room inlet valve with online
It is additionally provided with filter between analysis module.
5. natural gas on-line analyses device according to claim 4 it is characterised in that：Described filter and on-line analyses mould
It is provided with the second branch pipe(tube), described second branch pipe(tube) is provided with nitrogen inlet valve between block.
6. natural gas on-line analyses device according to claim 5 it is characterised in that：It is connected to described on-line analyses module
Pipeline be provided with purge vent check valve.
7. natural gas on-line analyses device according to claim 1 it is characterised in that：It is connected with first after described chromatograph
Emptying check valve；It is connected with the second emptying check valve after described moisture analyser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933119.9U CN205958520U (en) | 2016-08-24 | 2016-08-24 | Natural gas online analysis device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620933119.9U CN205958520U (en) | 2016-08-24 | 2016-08-24 | Natural gas online analysis device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205958520U true CN205958520U (en) | 2017-02-15 |
Family
ID=57978176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620933119.9U Active CN205958520U (en) | 2016-08-24 | 2016-08-24 | Natural gas online analysis device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205958520U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989271A (en) * | 2017-05-09 | 2017-07-28 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN109682986A (en) * | 2019-02-18 | 2019-04-26 | 哈尔滨天龙仪器制造有限公司 | A kind of device for sampling quantitative gas capable of washing |
| CN110187066A (en) * | 2019-06-21 | 2019-08-30 | 至砾机电设备（上海）有限公司 | A kind of water oxygen grading analysis detection system and its detection method |
| CN110975536A (en) * | 2019-11-22 | 2020-04-10 | 北京普瑞亿科科技有限公司 | Multi-channel vaporization detection platform and application thereof |
-
2016
- 2016-08-24 CN CN201620933119.9U patent/CN205958520U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989271A (en) * | 2017-05-09 | 2017-07-28 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN106989271B (en) * | 2017-05-09 | 2019-10-25 | 上海锐宇流体系统有限公司 | Split type vacuum thermal insulation low temperature liquefied natural gas sampling device |
| CN109682986A (en) * | 2019-02-18 | 2019-04-26 | 哈尔滨天龙仪器制造有限公司 | A kind of device for sampling quantitative gas capable of washing |
| CN110187066A (en) * | 2019-06-21 | 2019-08-30 | 至砾机电设备（上海）有限公司 | A kind of water oxygen grading analysis detection system and its detection method |
| CN110187066B (en) * | 2019-06-21 | 2024-03-19 | 上海至纯系统集成有限公司 | Water-oxygen particle analysis and detection system and detection method thereof |
| CN110975536A (en) * | 2019-11-22 | 2020-04-10 | 北京普瑞亿科科技有限公司 | Multi-channel vaporization detection platform and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205958520U (en) | Natural gas online analysis device | |
| CN105651648B (en) | It is a kind of to replace and adsorb analytic simulation test system and method | |
| CN205331786U (en) | Novel LNG filling station BOG reliquefaction recovery system | |
| CN105864636B (en) | LNG filling stations unload without pump, fill, charging system and fill technique | |
| CN103472156B (en) | System for sampling and component analysis of raw natural gas | |
| CN106872328A (en) | A kind of test device and method of testing of flow in low permeability core porosity and permeability | |
| CN101936861A (en) | Test method of supercritical carbon dioxide content in coal | |
| WO2022000891A1 (en) | Hydrate evaluation experiment system and method | |
| CN101839841B (en) | Adsorption/desorption experimental apparatus and method for gas in rock pore | |
| CN206161413U (en) | Natural gas online analysis device | |
| CN103472179A (en) | System for sampling and component analysis of truck loaded finished liquefied natural gas | |
| CN103487525A (en) | Liquid coolant sampling and component analyzing system | |
| CN202327654U (en) | System for recycling boil-off gas (BOG) in liquefied natural gas (LNG) storage tank | |
| CN202469480U (en) | Liquefied natural gas filling gas machine | |
| CN202691597U (en) | Residual air treatment device | |
| Lee et al. | Operational strategy to minimize operating costs in liquefied natural gas receiving terminals using dynamic simulation | |
| CN103471877B (en) | Natural gas sampling after the deacidification of a kind of absorption tower and component analysis system | |
| CN103472180B (en) | Sampling and component-analyzing system of natural gas dewatered by molecular sieve | |
| CN203479773U (en) | Ice chest liquefied natural gas sampling and component analysis system | |
| CN201600290U (en) | Distributor for sampling pressurized gas | |
| CN203479782U (en) | Sampling and component analyzing system of truck loading finished LNG | |
| CN208951669U (en) | A kind of double metering dispensers based on single current gauge | |
| CN207730755U (en) | Liquid nitrogen frozen hydrate sample decomposes gas quantitative sample injection system | |
| CN203479781U (en) | After-molecular-sieve-dehydration natural gas sampling and component analyzing system | |
| CN205898473U (en) | A malleation and vacuum testing arrangement for liquefied natural gas tank wagon |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |