CN201724852U - Gas bag sealing sampler - Google Patents
Gas bag sealing sampler Download PDFInfo
- Publication number
- CN201724852U CN201724852U CN2010202683715U CN201020268371U CN201724852U CN 201724852 U CN201724852 U CN 201724852U CN 2010202683715 U CN2010202683715 U CN 2010202683715U CN 201020268371 U CN201020268371 U CN 201020268371U CN 201724852 U CN201724852 U CN 201724852U
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- valve
- gas
- air bag
- port
- sampling
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Abstract
The utility model relates to a gas bag sealing sampler, which comprises a first control valve and a gas bag, wherein the first end opening of the first control valve is connected with a sample inlet pipeline. The utility model is characterized in that the second end opening of the first control valve is connected with the first end opening of a second three-way valve, the second end opening of the second three-way valve is used as a sampling opening for being connected with the gas bag, the third end opening of the second three-way valve is connected with the inlet end of a gas displacement device through a first inverted valve, and the outlet end of the gas displacement device is connected with a lower-pressure gas system through a second inverted valve. After the structure is adopted, the utility model is in full-sealed operation, harmful media are prevented from polluting environment and from injuring the body health of operators, at the same time, the gas in the gas bag can be sucked out through the gas storage of the gas bag and the gas displacement device, then, the gas is discharged into the low-pressure gas system, and the goal of on-line displacement of the gas in the gas bag can be conveniently and fast realized, so the operation is more convenient and safer, and the effect of environment protection can be realized. The safety factor of the operators during sampling can be improved in a state that the pressure of system pipelines is higher through the additional arrangement of pressure reducing valves.
Description
Technical field
The utility model relates to the airtight sampling thief of a kind of gas phase, is specifically related to the airtight sampling thief of a kind of air bag.
Background technology
In oil, the chemical industry, need often the medium in the pipeline in the production run to be carried out sample analysis.Sampling thief then is to realize the used device of above-mentioned sampling.At present, the sampling thief that needs to gather more sample adopts steel cylinder sampling thief or air bag sampling thief usually, though wherein the steel cylinder sampling thief is withstand voltage good, go for high pressure or low-pressure line up-sampling, but steel cylinder is comparatively heavy, carries inconvenience, and in the laboratory during sample analysis, also need support equipment, therefore be not subjected to liking of operating personnel.
For the air bag sampling thief, a then prior end with take-off line is communicated in systematic pipeline, and as shown in Figure 8, string is adorned an operation valve on this take-off line, and the other end of this take-off line is then as thief hatch.When needing sampling, open operation valve, make flow media in the take-off line, again air bag is installed in the thief hatch collected specimens, treat that sampling finishes the back closed control valve.Therefore adopt above-mentioned air bag sampling thief just can collect required sample comparatively easily, but owing to have the dead band on the take-off line, therefore, need a part of gas of discharging earlier before the sampling, to guarantee the medium freshness on the take-off line, can can cause the discharging of poisonous and harmful medium simultaneously, contaminated environment and to injure the employee healthy.Simultaneously when its during at the high pressure line up-sampling, the defective that air bag sampling thief poor stability and contaminated environment have a big risk is more obvious.Simultaneously, under the extremely low situation of systematic pipeline pressure, then can't set up circulation again, to such an extent as to can't guarantee the freshness of the sample gathered.Moreover in order to guarantee the fresh of sample, air bag must drain the residual gas in the air bag before gathering new sample only.And the airtight sampling thief of the air bag of above-mentioned single valve must promptly drain the residual gas in the air bag in advance in the laboratory through pre-process in use only.Or the dismounting air bag repeatedly reaches the purpose of displacement at the scene, and the comparatively trouble that seems is to such an extent as to can't satisfy the requirement that the user wishes online displacement.
The utility model content
First technical matters to be solved in the utility model is at above-mentioned prior art present situation, and a kind of airtight sampling thief of air bag that can be conveniently implemented in gas in the line displacement air bag is provided.
Second technical matters to be solved in the utility model is at above-mentioned prior art present situation, provides a kind of and can avoid poisonous, hazardous medium contaminated environment, the airtight sampling thief of air bag that can also use safely on high pressure line simultaneously.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: the airtight sampling thief of this air bag comprises that first port connects first operation valve and the air bag of sample inlet pipeline, it is characterized in that: second port of described first operation valve is connected in first port of second T-valve, second port of second T-valve connects for described air bag as thief hatch, the 3rd port of described second T-valve then connects the inlet end of gas displacement device by first reverse checkvalve, the endpiece of this gas displacement device then is connected in the low pressure gas system by second reverse checkvalve.
In such scheme, described gas displacement device is an air pump, and this air pump can adopt manual operation, also can adopt pneumatic, electric air pump, perhaps the conventional equipment that also can adopt other to be used for bleeding.
For can be under high pressure conditions also can safe collected specimens, on the pipeline between above-mentioned first operation valve and second T-valve, can also be equipped with the reduction valve and second tensimeter, the security when improving sampling and the simplicity of sampling operation.
Described first operation valve can be first T-valve, this moment, first port of this first T-valve was first port of first operation valve, second port of this first T-valve is second port of this first operation valve, and the 3rd port of this first T-valve connects the sample export pipeline.Also can adopt conventional gate valve and ball valve, sample is directly introduced from systematic pipeline.
Compared with prior art, because first operation valve of the present utility model is connected in air bag through second T-valve, simultaneously through first reverse checkvalve, the gas displacement device and second reverse checkvalve are connected in the low pressure gas system, thereby when sampling, be in totally closed operation on the one hand, avoid the hazardous medium contaminated environment, the hidden danger of infringement health of operators, on the other hand, utilize the conversion of second T-valve, make the gas that contains in the air bag carry out exhaust by means of the gas displacement device, promptly by air bag gas storage, the gas displacement device is with the gas sucking-off in the air bag, enter low tile system again and can make things convenient for, realize the purpose of gas in the online displacement gas capsule apace, make operate convenient, safety, environmental protection.The reduction valve of setting up simultaneously, even when systematic pipeline pressure is higher, operating personnel can sample equally safely, can put forward the safety coefficient when sampling into height.
Description of drawings
Fig. 1 is the system schematic of the utility model first embodiment;
Fig. 2 is the Facad structure synoptic diagram of the utility model first embodiment;
Fig. 3 is the structure synoptic diagram of Fig. 2;
Fig. 4 is the system schematic of the utility model second embodiment;
Fig. 5 is the system schematic of the utility model the 3rd embodiment;
Fig. 6 is the Facad structure synoptic diagram of the utility model the 3rd embodiment;
Fig. 7 is the structure synoptic diagram of Fig. 6;
Fig. 8 is the system schematic of air bag sampling thief in the prior art.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
Embodiment one, as shown in Figure 1 to Figure 3, this air bag sampling thief comprises first operation valve and air bag 7, second T-valve 8, first reverse checkvalve 9, gas displacement device 11 and second reverse checkvalve 10, wherein first operation valve adopts T-valve, i.e. first T-valve 3, first port of this first T-valve 3 connects sample inlet pipeline 6, and second port of this first T-valve is connected in first port of second T-valve 8, and the 3rd port of this first T-valve connects sample export pipeline 2.The handle 31 of above-mentioned first T-valve, the handle 81 of second T-valve are exposed to guidance panel 13, first tensimeter 4 is fixed on the guidance panel 13 on the first T-valve handle, 31 right sides, these first pressure, 4 tables are installed on the sample inlet pipeline 6 by three-way connection, simultaneously second operation valve 5 is installed also on the sample inlet pipeline, the 3rd operation valve 1 also is installed on the sample export pipeline.
The Centronics port of above-mentioned second T-valve 8 connects for described air bag 7 as thief hatch, second port of second T-valve then connects the inlet end of gas displacement device 11 by first reverse checkvalve 9, this gas displacement device adopts conventional hand air pump (can certainly adopt electronic, pneumatic air pump), and its endpiece then is connected in low pressure gas system (also claiming waste gas reclamation treatment system) 12 by second reverse checkvalve 10.
Under the duty of non-sampling, medium flows out from discharge pipe through the 3rd operation valve 1 from inlet line lateral line on second operation valve 5, first tensimeter 4, first T-valve 3, and medium is in flow state all the time.And when needing sampling, it is no abnormal to check that earlier this sampling thief has, and the reading of first tensimeter 4 has no abnormal; If it is no abnormal, then the first T-valve handle 31 is threaded to the position of ＂ sampling ＂, the handle 81 of second T-valve is threaded to " injection " position, and medium flows into the air bag 7 through second operation valve, first tensimeter, 3 times lateral lines of first T-valve, second T-valve, 8 left side pipelines from inlet line; Then second T-valve 8 is threaded to " discharging " position, makes the second T-valve right side pipeline logical, and the handwheel of rotation manual air pump, get final product the interior gas of emptying air bag to low pressure gas system 12.Repeat to finish the displacement of gas in the air bag for several times, the residual gas in confirming air bag is threaded to " injection " position with second T-valve, 8 handles after having drained only again, makes the air bag collected specimens like this; After treating that sample collecting is finished, the first T-valve handle 31 is threaded to " closing " position, takes air bag away, once sampling finishes.
Embodiment two, and as shown in Figure 4, when systematic pipeline pressure was higher, operating personnel were comparatively dangerous when the high pressure conditions down-sampling.In order to reduce security risk, on the basis of above-mentioned first embodiment, increase by a reduction valve 14, at this moment, first operation valve still is first T-valve, the reduction valve string be contained in this first T-valve and second T-valve between pipeline on, second tensimeter 15 also is installed on the pipeline between the reduction valve and second T-valve simultaneously.
Under non-sampling work state, medium is in flow state all the time in systematic pipeline.And when needs were sampled, it is no abnormal that same this sampling thief of inspection earlier has, and whether second tensimeter, 15 readings are within the safe pressure range of readings of setting.If sampling thief is no abnormal, and second tensimeter 15 is shown as within the safe pressure scope, then the first T-valve handle 31 is threaded to the position of ＂ sampling ＂, the second T-valve handle is threaded to " injection " position, and medium is from inlet line, through second operation valve 5, first tensimeter 4,3 times lateral lines of first T-valve, reduction valve 14, second tensimeter 15, second T-valve, 8 right side pipelines inflow air bags 7; Then the second T-valve handle is threaded to " discharging " position, makes the second T-valve right side pipeline logical, and the handwheel of rotation manual air pump, get final product the interior gas of emptying air bag to low pressure gas system 12.Repeat to finish the displacement of gas in the air bag for several times, the residual gas in confirming air bag is threaded to " injection " position with the second T-valve handle after having drained only again, makes the air bag collected specimens; After treating that sample collecting is finished, the first T-valve handle is threaded to " closing " position, takes air bag away, once sampling finishes.
Embodiment three, extremely shown in Figure 7 as Fig. 5, at some non-poisonous and harmfuls or the little medium sampled point of toxicity, and some are not very high high pressure sampled points to air bag displacement requirement, in order to make collection easier, in above-mentioned second embodiment, first operation valve also can adopt simple gate valve 16 or ball valve, directly from systematic pipeline, introduce sample, remove first tensimeter 4, second operation valve 5, the 3rd operation valve 1 simultaneously, at this moment, also can remove online permutation function, promptly remove gas displacement device 11, be directly connected in low pressure gas system 12 by first reverse checkvalve 9; And that the mouth of pipe of second T-valve connects is also slightly different, and it is total closes, samples and discharge three states, that is to say that first port of the second T-valve 8a of this moment is as thief hatch, and the Centronics port of second T-valve is connected in gate valve 16 behind reduction valve 14.Before the sampling, handle 81a with second T-valve is threaded to " discharging " position earlier, medium in the discharge pipe is to the about 5-10 of low pressure gas system second, after guaranteeing the medium freshness, again air bag is installed on the thief hatch, the second T-valve handle 81a is threaded to " sampling " position, medium is through entering the air bag 7 through reduction valve 14, second tensimeter 15 and second T-valve left side pipeline from gate valve 16, after sampling finishes, the second T-valve handle 81a is threaded to " closing " state, one time sampling process finishes, and realizes sampling again and again like this.
Claims (5)
1. airtight sampling thief of air bag, comprise that first port connects first operation valve (3) and the air bag (7) of sample inlet pipeline (6), it is characterized in that: second port of described first operation valve is connected in first port of second T-valve (8), second port of second T-valve (8) connects for described air bag (7) as thief hatch, the 3rd port of described second T-valve (8) then connects the inlet end of gas displacement device (11) by first reverse checkvalve (9), the endpiece of this gas displacement device (11) then is connected in low pressure gas system (12) by second reverse checkvalve (10).
2. the airtight sampling thief of air bag according to claim 1 is characterized in that: described gas displacement device is an air pump.
3. the airtight sampling thief of air bag according to claim 1 and 2 is characterized in that: also be equipped with the reduction valve (14) and second tensimeter on the pipeline between described first operation valve and second T-valve (8).
4. the airtight sampling thief of air bag according to claim 3, it is characterized in that: described first operation valve is first T-valve (3), first port of this first T-valve (3) is first port of first operation valve, second port of this first T-valve (3) is second port of this first operation valve, and the 3rd port of this first T-valve (3) connects sample export pipeline (2).
5. the airtight sampling thief of air bag according to claim 3 is characterized in that: described first operation valve is gate valve (16) or ball valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202683715U CN201724852U (en) | 2010-07-20 | 2010-07-20 | Gas bag sealing sampler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202683715U CN201724852U (en) | 2010-07-20 | 2010-07-20 | Gas bag sealing sampler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201724852U true CN201724852U (en) | 2011-01-26 |
Family
ID=43493190
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202683715U Expired - Lifetime CN201724852U (en) | 2010-07-20 | 2010-07-20 | Gas bag sealing sampler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201724852U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413490A (en) * | 2013-08-31 | 2013-11-27 | 山西潞安环保能源开发股份有限公司常村煤矿 | Gas extraction teaching aid |
| CN105810289A (en) * | 2016-05-20 | 2016-07-27 | 浙江光隆能源科技股份有限公司 | Aluminium paste used for back-polished polycrystalline solar cell and preparation method for aluminum paste |
| CN108195639A (en) * | 2017-11-24 | 2018-06-22 | 国网北京市电力公司 | Sulfur hexafluoride sampler |
| CN108801716A (en) * | 2018-05-23 | 2018-11-13 | 上海北裕分析仪器股份有限公司 | A kind of gas producing device and method of acquisition parallel gas |
| CN109470418A (en) * | 2019-01-09 | 2019-03-15 | 青岛泰斯迈仪器设备有限公司 | A kind of leakage detection apparatus of vacuum sample normal pressure detection |
| CN109470417A (en) * | 2019-01-09 | 2019-03-15 | 青岛泰斯迈仪器设备有限公司 | A kind of leak hunting method of vacuum sample normal pressure detection |
| CN111504734A (en) * | 2020-04-30 | 2020-08-07 | 江苏星亚迪环境科技有限公司 | Low-pressure gas sampler |
-
2010
- 2010-07-20 CN CN2010202683715U patent/CN201724852U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103413490A (en) * | 2013-08-31 | 2013-11-27 | 山西潞安环保能源开发股份有限公司常村煤矿 | Gas extraction teaching aid |
| CN103413490B (en) * | 2013-08-31 | 2016-08-10 | 山西潞安环保能源开发股份有限公司常村煤矿 | A kind of gas pumping teaching aid |
| CN105810289A (en) * | 2016-05-20 | 2016-07-27 | 浙江光隆能源科技股份有限公司 | Aluminium paste used for back-polished polycrystalline solar cell and preparation method for aluminum paste |
| CN108195639A (en) * | 2017-11-24 | 2018-06-22 | 国网北京市电力公司 | Sulfur hexafluoride sampler |
| CN108801716A (en) * | 2018-05-23 | 2018-11-13 | 上海北裕分析仪器股份有限公司 | A kind of gas producing device and method of acquisition parallel gas |
| CN109470418A (en) * | 2019-01-09 | 2019-03-15 | 青岛泰斯迈仪器设备有限公司 | A kind of leakage detection apparatus of vacuum sample normal pressure detection |
| CN109470417A (en) * | 2019-01-09 | 2019-03-15 | 青岛泰斯迈仪器设备有限公司 | A kind of leak hunting method of vacuum sample normal pressure detection |
| CN109470417B (en) * | 2019-01-09 | 2020-07-07 | 青岛泰斯迈仪器设备有限公司 | Leak detection method for vacuum sampling normal pressure detection |
| CN111504734A (en) * | 2020-04-30 | 2020-08-07 | 江苏星亚迪环境科技有限公司 | Low-pressure gas sampler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110126 |