CN102735506A - Pressure-balanced self-evacuated piston type high pressure natural gas sampler - Google Patents
Pressure-balanced self-evacuated piston type high pressure natural gas sampler Download PDFInfo
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- CN102735506A CN102735506A CN2012102271070A CN201210227107A CN102735506A CN 102735506 A CN102735506 A CN 102735506A CN 2012102271070 A CN2012102271070 A CN 2012102271070A CN 201210227107 A CN201210227107 A CN 201210227107A CN 102735506 A CN102735506 A CN 102735506A
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- loam cake
- natural gas
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Abstract
The invention discloses a pressure-balanced self-evacuated piston type high pressure natural gas sampler. In the pressure-balanced and self-evacuated piston type high pressure natural gas sampler disclosed by the invention, two ends of a cylindrical air cylinder are respectively provided with an upper cover and a base, wherein the upper cover and the base are integrally connected by bolts and nuts, the air cylinder is internally provided with a piston, an accommodation chamber above the piston is filled with nitrogen, and an accommodation chamber under the piston is filled with natural gas; the upper cover is respectively provided with an inflating inlet stop valve and an inflating chamber pressure gauge, and the inflating inlet stop valve and the inflating chamber pressure gauge are communicated with the nitrogen accommodation chamber through the pipelines of the inflating inlet stop valve and the inflating chamber pressure gauge in the upper cover; and the base is respectively provided with an operating chamber pressure gauge and an air inlet and outlet stop valve, and the operating chamber pressure gauge and the air inlet and outlet stop valve are communicated with the natural gas accommodation chamber through the pipelines of operating chamber pressure gauge and an air inlet and outlet stop valve in the base. The pressure-balanced and self-evacuated piston type high pressure natural gas sampler disclosed by the invention can push the piston to move upwards by utilizing the pressure of the collected natural air so as to realize the on-site collection of the natural gas, and the gas in the operating chamber can be entirely exhausted before sampling so as to avoids the influences of other gases on the accuracy of detection results. The pressure-balanced and self-evacuated piston type high pressure natural gas sampler has the advantages of simple structure and reliable working, and is convenient to operate and portable.
Description
Technical field
The present invention relates to a kind of rock gas sampling thief, a kind of pressure equilibrium that especially relates to collection in worksite is from emptying piston type HPG sampling thief.
Background technology
Rock gas is a kind of multi-component mixed gaseous fossil fuel, and it also is a kind of clean energy resource efficiently simultaneously.Along with the propelling of process of industrialization and the daily life increase to Natural Gas Demand, people more pay attention to rock gas.The scale effect of each component is the performance and the emission performance of the internal combustion engine etc. of fuel to its combustion characteristics with the rock gas in the rock gas.National verification rules regulation regularly will detect gas component, and this just relates to the acquisition problems of on-the-spot pipe natural gas.
Existing rock gas sampling thief mostly adopts steel cylinder formula structure.This steel cylinder formula sampling thief need use sample gas it to be purged emptying before use.Operation is not only loaded down with trivial details like this, and sampling efficiency is low, and if sample gas does not drain original gas in the steel cylinder fully then and can cause error to follow-up component analysis work, the directly accuracy of influence detection.
Summary of the invention
In order to solve the problem that exists in the background technology; The purpose of this invention is to provide a kind of pressure equilibrium from emptying piston type HPG sampling thief, the force piston that the rock gas that utilization is gathered self is had moves upward to realize the collection of working site rock gas.
In order to achieve the above object, the technical scheme of the present invention's employing is:
Comprise inflation inlet stop valve, loam cake working chamber tensimeter, inflator, air inlet/outlet stop valve, base, inflatable chamber tensimeter and piston; Columnar inflator two ends are separately installed with loam cake and base links into an integrated entity through screw bolt and nut, in the inflator piston are housed, and piston top cavity volume is filled with nitrogen, and piston below cavity volume has rock gas; Loam cake is equipped with inflation inlet stop valve and inflatable chamber tensimeter respectively, and inflation inlet stop valve and inflatable chamber tensimeter communicate with the nitrogen cavity volume through separately pipeline in the loam cake; Base is equipped with working chamber tensimeter and air inlet/outlet stop valve respectively, and working chamber tensimeter and air inlet/outlet stop valve communicate with the rock gas cavity volume through separately pipeline in the base.
Described loam cake lower end side and inflator junction are provided with loam cake ring seal groove, and loam cake O RunddichtringO is housed in the loam cake ring seal groove.
Described base upper side and inflator junction are provided with base ring seal groove, and base O RunddichtringO is housed in the base ring seal groove.
The side of described piston is provided with three road ring grooves, and the ring groove of both sides is equipped with the O RunddichtringO up and down, and middle ring groove is equipped with wear ring.
Beneficial effect of the present invention:
The force piston that the rock gas that utilization of the present invention is gathered self is had moves upward to realize the collection of working site rock gas; And before sampling, can the gas in the working chamber be drained fully, avoided of the influence of other gases to the testing result accuracy.Two tensimeters are respectively applied for nitrogen pressure and the interior gas pressure of working chamber in the cavity volume of indicator piston top.It is simple in structure, easy to operate that the present invention has, reliable operation, and characteristics such as be easy to carry about with one.
Description of drawings
Fig. 1 is a front elevation of the present invention.
Fig. 2 is a cut-open view of the present invention.
Fig. 3 is a stereographic map of the present invention.
Among the figure: 1, inflation inlet stop valve, 2, loam cake, 3, the working chamber tensimeter, 4, the air inlet/outlet stop valve, 5, base, 6, bolt, 7, inflator, 8, the inflatable chamber tensimeter, 9, piston.
Embodiment
Below in conjunction with accompanying drawing the present invention is further described.
Like Fig. 1, Fig. 2, shown in Figure 3, comprise inflation inlet stop valve 1, loam cake 2, working chamber tensimeter 3, inflator 7, air inlet/outlet stop valve 4, base 5, inflatable chamber tensimeter 8 and piston 9; Columnar inflator 7 two ends are separately installed with loam cake 2 and link into an integrated entity through bolt 6 and nut with base 5, and piston 9 is housed in the inflator 7, and piston top cavity volume is filled with nitrogen, and piston below cavity volume has rock gas; Loam cake 2 is equipped with inflation inlet stop valve 1 and inflatable chamber tensimeter 8 respectively, and inflation inlet stop valve 1 and inflatable chamber tensimeter 8 communicate with the nitrogen cavity volume through separately pipeline in the loam cake 2; Base 5 is equipped with working chamber tensimeter 3 and air inlet/outlet stop valve 4 respectively, and working chamber tensimeter 3 and air inlet/outlet stop valve 4 communicate with the rock gas cavity volume through separately pipeline in the base 5.
Like Fig. 1, shown in Figure 2, inflation inlet stop valve 1 and inflatable chamber tensimeter 8 are installed in the both sides of loam cake 2, and working chamber tensimeter 3 is installed in the side of base 5, and air inlet/outlet stop valve 4 is installed in base 5 centers.
As shown in Figure 2, loam cake 2 lower end side and inflator 7 junctions are provided with loam cake ring seal groove, and loam cake O RunddichtringO is housed in the loam cake ring seal groove.
As shown in Figure 2, base 5 upper side and inflator 7 junctions are provided with base ring seal groove, and base O RunddichtringO is housed in the base ring seal groove.
As shown in Figure 2, the side of piston 9 is provided with three road ring grooves, and the ring groove of both sides is equipped with the O RunddichtringO up and down, and middle ring groove is equipped with wear ring.
Principle of work of the present invention is following:
Loam cake O RunddichtringO is installed in the loam cake ring seal groove of loam cake 2; Mounting seat O RunddichtringO in the base ring seal groove of base 5; The two ends of inflator 7 are inserted in loam cake 2 and base 5 respectively; On four angles of collector, pair of bolts 6 and nut are installed respectively, like Fig. 3, in order to loam cake 2, inflator 7 and base 5 are linked up closely.Be separately installed with twice O type circle on the piston 9 with wear ring; Utilize the sealing function of O type circle, inflator 7 is divided into two cavity volumes up and down.Loam cake 2 two sides have two passages, and one is equipped with inflation inlet stop valve 1, is used to charge into the nitrogen with certain pressure; Another is equipped with inflatable chamber tensimeter 8, is used to measure in the chamber nitrogen pressure with the indicator piston position.Lower cover 5 sides have a passage, the gas pressure that installment work cavity pressure table 3 collects with measurement; The bottom has a through hole, and the aperture is installed into the turnover that gas outlet stop valve 4 is used for rock gas.When not working, piston 9 has up under the effect of nitrogen of certain pressure and moves downward, and stops at below; During work, open air inlet/outlet stop valve 4, the rock gas with certain pressure (greater than the nitrogen gas pressure that charges into) gets into piston 9 below working chambers, and piston 9 moves upward under the effect of both sides pressure difference; Along with piston 9 moves upward, nitrogen pressure rises gradually in the piston 9 top cavity volumes, can be through the indicated value guestimate piston position of inflatable chamber tensimeter 8.When collecting the gas samples of enough volumes, close air inlet/outlet stop valve 4.The present invention is easy to carry, and is fit to very much the collection of on-the-spot pipe natural gas.
Above-mentioned embodiment is used for the present invention that explains, rather than limits the invention, and in the protection domain of spirit of the present invention and claim, any modification and change to the present invention makes all fall into protection scope of the present invention.
Claims (4)
1. a pressure equilibrium is characterized in that from emptying piston type HPG sampling thief: comprise inflation inlet stop valve (1), loam cake (2), working chamber tensimeter (3), inflator (7), air inlet/outlet stop valve (4), base (5), inflatable chamber tensimeter (8) and piston (9); Columnar inflator (7) two ends are separately installed with loam cake (2) and base (5) links into an integrated entity through bolt (6) and nut, and inflator is equipped with piston (9) in (7), and piston top cavity volume is filled with nitrogen, and piston below cavity volume has rock gas; Loam cake (2) is equipped with inflation inlet stop valve (1) and inflatable chamber tensimeter (8) respectively, and inflation inlet stop valve (1) and inflatable chamber tensimeter (8) communicate with the nitrogen cavity volume through separately pipeline in the loam cake (2); Base (5) is equipped with working chamber tensimeter (3) and air inlet/outlet stop valve (4) respectively, and working chamber tensimeter (3) and air inlet/outlet stop valve (4) communicate with the rock gas cavity volume through separately pipeline in the base (5).
2. require described a kind of pressure equilibrium from emptying piston type HPG sampling thief according to right 1; It is characterized in that: described loam cake (2) lower end side and inflator (7) junction are provided with loam cake ring seal groove, and loam cake O RunddichtringO is housed in the loam cake ring seal groove.
3. require described a kind of pressure equilibrium from emptying piston type HPG sampling thief according to right 1; It is characterized in that: described base (5) upper side and inflator (7) junction are provided with base ring seal groove, and base O RunddichtringO is housed in the base ring seal groove.
4. require described a kind of pressure equilibrium from emptying piston type HPG sampling thief according to right 1; It is characterized in that: the side of described piston (9) is provided with three road ring grooves; The ring groove of both sides is equipped with the O RunddichtringO up and down, and middle ring groove is equipped with wear ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102271070A CN102735506A (en) | 2012-07-03 | 2012-07-03 | Pressure-balanced self-evacuated piston type high pressure natural gas sampler |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102271070A CN102735506A (en) | 2012-07-03 | 2012-07-03 | Pressure-balanced self-evacuated piston type high pressure natural gas sampler |
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| CN102735506A true CN102735506A (en) | 2012-10-17 |
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| CN2012102271070A Pending CN102735506A (en) | 2012-07-03 | 2012-07-03 | Pressure-balanced self-evacuated piston type high pressure natural gas sampler |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075912A (en) * | 2014-07-10 | 2014-10-01 | 国家电网公司 | Chromatographic analysis sampling quantification device |
| CN106908287A (en) * | 2017-02-28 | 2017-06-30 | 中国石油天然气股份有限公司 | Pressure-balancing gas collection device and method |
| CN108426752A (en) * | 2018-06-22 | 2018-08-21 | 杨宁 | Solution gas negative pressure sampler |
| CN118090354A (en) * | 2024-04-19 | 2024-05-28 | 北京凯隆分析仪器有限公司 | Natural gas accumulation sampling storage tank and accumulation sampling method thereof |
Citations (6)
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| CN2341142Y (en) * | 1998-04-21 | 1999-09-29 | 杨洪新 | Controllable continuous batching gas sampler |
| CN101526444A (en) * | 2009-04-13 | 2009-09-09 | 中国海洋石油总公司 | Hydraulic-control high-pressure environment liquid sampler |
| CN201378121Y (en) * | 2009-03-26 | 2010-01-06 | 刘明明 | Cylindrical positive-voltage gas sampler |
| CN102042919A (en) * | 2009-10-21 | 2011-05-04 | 上海宝钢设备检修有限公司 | Gas sampler |
| CN102313657A (en) * | 2011-05-19 | 2012-01-11 | 浙江省计量科学研究院 | Mobile piston type natural gas sampling device |
| CN202631324U (en) * | 2012-07-03 | 2012-12-26 | 浙江省计量科学研究院 | Pressure balance self-evacuation piston type high pressure natural gas sampler |
-
2012
- 2012-07-03 CN CN2012102271070A patent/CN102735506A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2341142Y (en) * | 1998-04-21 | 1999-09-29 | 杨洪新 | Controllable continuous batching gas sampler |
| CN201378121Y (en) * | 2009-03-26 | 2010-01-06 | 刘明明 | Cylindrical positive-voltage gas sampler |
| CN101526444A (en) * | 2009-04-13 | 2009-09-09 | 中国海洋石油总公司 | Hydraulic-control high-pressure environment liquid sampler |
| CN102042919A (en) * | 2009-10-21 | 2011-05-04 | 上海宝钢设备检修有限公司 | Gas sampler |
| CN102313657A (en) * | 2011-05-19 | 2012-01-11 | 浙江省计量科学研究院 | Mobile piston type natural gas sampling device |
| CN202631324U (en) * | 2012-07-03 | 2012-12-26 | 浙江省计量科学研究院 | Pressure balance self-evacuation piston type high pressure natural gas sampler |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104075912A (en) * | 2014-07-10 | 2014-10-01 | 国家电网公司 | Chromatographic analysis sampling quantification device |
| CN106908287A (en) * | 2017-02-28 | 2017-06-30 | 中国石油天然气股份有限公司 | Pressure-balancing gas collection device and method |
| CN106908287B (en) * | 2017-02-28 | 2020-02-14 | 中国石油天然气股份有限公司 | Pressure-balancing gas collection device and method |
| CN108426752A (en) * | 2018-06-22 | 2018-08-21 | 杨宁 | Solution gas negative pressure sampler |
| CN118090354A (en) * | 2024-04-19 | 2024-05-28 | 北京凯隆分析仪器有限公司 | Natural gas accumulation sampling storage tank and accumulation sampling method thereof |
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Application publication date: 20121017 |