CN207197873U - The sampler of low temperature atmospheric tank - Google Patents
The sampler of low temperature atmospheric tank Download PDFInfo
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- CN207197873U CN207197873U CN201721294120.2U CN201721294120U CN207197873U CN 207197873 U CN207197873 U CN 207197873U CN 201721294120 U CN201721294120 U CN 201721294120U CN 207197873 U CN207197873 U CN 207197873U
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- gas
- stop valve
- sampling
- low temperature
- sampler
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Abstract
The utility model provides a kind of low temperature atmospheric tank sampler, including takes gas unit and sampling line.Take gas unit to include taking gas cylinder, take the air inlet of gas cylinder to take the inlet communication of gas unit with this, take the gas outlet of gas cylinder to take the outlet of gas unit with this；The air inlet of sampling line connects with storage tank, the gas outlet of sampling line and the inlet communication for taking gas unit；The sampling line is provided with sampling stop valve.Low temperature atmospheric tank sampler of the present utility model, when sampling stop valve unlatching, the medium of the low-temperature atmosphere-pressure stored in storage tank can be entered by sampling line to be taken in gas cylinder, carry out the sampling operation of gas medium；When sampling stop valve closing, this can be taken the outlet of gas unit to be connected with detection and analysis equipment, so as to complete the analysis operation of media components in storage tank.The low temperature atmospheric tank sampler of the application can be effectively prevented from contact of the gaseous sample with operating personnel, reduce the risk to staff's personal injury, improve the security during gas sample.
Description
Technical field
It the utility model is related to assay sampler field, the sampling dress of more particularly to a kind of low temperature atmospheric tank
Put.
Background technology
Continue to develop, be becoming tight with economical in recent years energy supply day, in order to alleviate energy breach, implement energy resource structure
Adjustment and the Major Strategic of sustainable development, the Chinese government make coastal economy developed regions and implement LNG applications on a large scale
Very important decision, it is more Shenzhen roc LNG receiving stations, Putian, fujian Province LNG receiving stations, Ningbo of Zhejiang LNG receiving stations etc. are successively built up
Individual Large LNG receiving terminal project.
In LNG trades, how LNG to be measured exactly, the problem of being both parties' emphasis concern.Therefore, connect
The reasonability and accuracy of the sampling analytical system set in station in LNG low temperature atmospheric tanks are received, can be directly connected to accurate
LNG unit mass calorific values are measured, are also related to the fair deal of both parties.
The primary operational method of existing low temperature atmospheric tank sampling analysis is manually in storage tank sampling analysis mouth airbag
Sampling, then using chromatographic gas component.But due to taking gas sample product, content reaches finite concentration in atmosphere
After can make one to suffocate, and it is cold conditions gas to take gas sample product, and frostbite accident easily occurs during sampling and analysing, exists very big
Potential safety hazard.
Utility model content
The purpose of this utility model easily occurs frostbite accident, deposited in the storage tank sampling process for solving prior art
The very big potential safety hazard the problem of.
In order to solve the above technical problems, the utility model provides a kind of low temperature atmospheric tank sampler, including：Take gas list
Member, including gas cylinder is taken, the air inlet for taking gas cylinder takes the inlet communication of gas unit with this, and the gas outlet for taking gas cylinder is with being somebody's turn to do
Take the outlet of gas unit；Sampling line, the air inlet of the sampling line connect with storage tank, the outlet of the sampling line
Mouth and the inlet communication for taking gas unit；The sampling line is provided with sampling stop valve.
Preferably, it is provided with the first stop valve at the air inlet for taking gas cylinder, the is provided with the gas outlet for taking gas cylinder
Two stop valves.
Preferably, in addition to blow-down pipe, the air inlet of the blow-down pipe and the outlet for taking gas unit, institute
The gas outlet for stating blow-down pipe connects with external environment, and the blow-down pipe is provided with vent stop valve.
Preferably, it is described to take gas unit to be detachably connected respectively with the sampling line and the blow-down pipe.
Preferably, in addition to bypass line, the air inlet of the bypass line connect with the sampling line, the bypass
The gas outlet of pipeline connects with the blow-down pipe, and the bypass line is provided with bypass cutoff valve；The sampling stop valve is set
Between the air inlet for putting the connectivity part and the sampling line in the bypass line and sampling line, the vent stop valve is set
Between the air inlet for putting the connectivity part and the blow-down pipe in the bypass line and blow-down pipe.
Preferably, at least one is provided between the connectivity part of the bypass line and sampling line and the gas outlet of sampling line
Stop valve, the stop valve are arranged on the sampling line.
Preferably, the stop valve is provided with multiple, and multiple stop valves are arranged in series on the sampling line.
Preferably, it is connected between first stop valve and the import for taking gas unit by metal hose, it is described
It is connected between second stop valve and the outlet for taking gas unit by metal hose.
Preferably, the caliber of the sampling line and the blow-down pipe is DN10~DN25.
Preferably, the volume for taking gas cylinder is 100L~500L.
As shown from the above technical solution, the beneficial effects of the utility model are：
Low temperature atmospheric tank sampler of the present utility model, when sampling stop valve unlatching, middle storage is low in storage tank
The medium of normal temperature and pressure can be entered by sampling line to be taken in gas cylinder, carries out the sampling operation of gas medium；Closed in sampling stop valve
When closing, this can be taken the outlet of gas unit to be connected with detection and analysis equipment, so as to complete the analysis operation of media components in storage tank.
The low temperature atmospheric tank sampler of the application can be effectively prevented from contact of the gaseous sample with operating personnel, reduce to the people that works
The risk of member's personal injury, improves the security during gas sample.
Brief description of the drawings
Fig. 1 is the structural representation of the utility model low temperature atmospheric tank sampling analysis device embodiment.
Fig. 2 is the structural representation that gas unit is taken in the utility model low temperature atmospheric tank sampling analysis device embodiment.
Fig. 3 is that the use state that gas unit is taken in the utility model low temperature atmospheric tank sampling analysis device embodiment is illustrated
Figure.
Description of reference numerals is as follows：1st, low temperature atmospheric tank sampler；11st, gas unit is taken；111st, gas cylinder is taken；1111、
Pressure gauge；1112nd, safety valve；112nd, the first stop valve；113rd, the second stop valve；114th, metal hose；12nd, sampling line；
121st, stop valve is sampled；13rd, blow-down pipe；131st, vent stop valve；14th, bypass line；141st, bypass cutoff valve；15th, the 3rd
Stop valve；16th, the 4th stop valve；2nd, gas chromatograph.
Embodiment
Embodying the exemplary embodiment of the utility model features and advantages will describe in detail in the following description.It should be understood that
Be that the utility model can have various changes in different embodiments, it does not all depart from model of the present utility model
Enclose, and explanation therein and diagram are treated as purposes of discussion in itself, and be not used to limit the utility model.
In order to further illustrate principle and structure of the present utility model, it is preferable to carry out in conjunction with accompanying drawing to of the present utility model
Example is described in detail.
Refering to Fig. 1, the present embodiment provides a kind of low temperature atmospheric tank sampler 1, including takes gas unit 11 and probe tube
Line 12.Wherein, gas unit 11 is taken to include taking gas cylinder 111, this takes the air inlet of gas cylinder 111 and takes the inlet communication of gas unit 11,
Take the gas outlet of gas cylinder 111 and take the outlet of gas unit 11.The air inlet of sampling line 12 connects with storage tank, sampling line
12 gas outlet and the inlet communication for taking gas unit 11, the sampling line 12 are provided with sampling stop valve 121.
When sampling the unlatching of stop valve 121, the medium of the low-temperature atmosphere-pressure stored in storage tank can be entered by sampling line 12
Take in gas cylinder 111, carry out the sampling operation of gas medium；When sampling the closing of stop valve 121, this can be taken to going out for gas unit 11
Mouth connects with detection and analysis equipment, so as to complete the analysis operation of media components in storage tank.It can be seen that in sampling process, the application
Low temperature atmospheric tank sampler 1 can be effectively prevented from contact of the gaseous sample with operating personnel, reduce to staff people
The risk of body injury, improves the security during gas sample.
Refering to Fig. 2, taking for the present embodiment is provided with the first stop valve 112 at the air inlet of gas cylinder 111, take going out for gas cylinder 111
The second stop valve 113 is provided with gas port.It is it is preferred that soft by metal between the first stop valve 112 and the import for taking gas unit 11
Pipe 114 is connected, and the second stop valve 113 between taking the outlet of gas unit 11 with being connected by metal hose 114, so as to take gas
The structure of unit 11 is simple, convenient disassembly, and then improves the operating efficiency of sampling operation.
In addition, taking gas unit 11 in the present embodiment, the volume for taking gas cylinder 111 is 100L~500L, this takes gas cylinder 111
On pressure gauge 1111 and safety valve 1112 are installed.Pressure gauge 1111 can take the pressure value inside gas cylinder 111 with real-time display, with
Staff is set to understand the pressure condition taken inside gas cylinder 111 in time.When taking the pressure of gas cylinder 111 excessive, staff again may be used
The generation of accident is avoided by the pressure release of safety valve 1112.
As shown in figure 1, the low temperature atmospheric tank sampler 1 also includes blow-down pipe 13.The air inlet of blow-down pipe 13
Outlet with taking gas unit 11, the gas outlet of blow-down pipe 13 are connected with external environment, and the blow-down pipe 13 is provided with
Vent stop valve 131.When the internal pressure of low temperature atmospheric tank sampler 1 is excessive, vent stop valve 131 can be opened, makes dress
The gas for putting inside is discharged by blow-down pipe 13, so as to ensure the overall security of device.
The sampling line 12 of the present embodiment and the caliber of blow-down pipe 13 are DN10~DN25.It is preferred that this takes gas unit
11 are detachably connected with sampling line 12 and blow-down pipe 13 respectively.After taking gas cylinder 111 to complete sampling operation, the can closed
After one stop valve 112 and the second stop valve 113, gas unit 11 will be taken by being disassembled on sampling line 12 and blow-down pipe 13.
The small volume of gas unit 11 is taken, it can be directly transported at gas chromatograph 2 after being disassembled.Refering to Fig. 3, will take
The outlet of gas unit 11 connects with gas chromatograph 2.The first stop valve 112 is now closed, opens the second stop valve 113, is utilized
Take the pressure inside gas cylinder 111 as driving the gas medium inside gas cylinder 111 will to be taken to be delivered in gas chromatograph 2.It is logical
The data of the display of gas chromatograph 2 are crossed, staff can accurately calculate the calorific value and density of gas medium, so as to complete to gas
The analysis of body sample.
For the low temperature atmospheric tank sampler 1 of the present embodiment, storage tank scene is arranged on without detection device will be analyzed,
Harm of the unfavorable factors such as dust, rainwater to detection and analysis equipment can be avoided, it is ensured that the accuracy of detection and analysis equipment detection.
As shown in figure 1, in the low temperature atmospheric tank sampler 1 of the present embodiment, bypass line 14 is additionally provided with.Bypass pipe
The air inlet of line 14 connects with sampling line 12, and the gas outlet of bypass line 14 connects with blow-down pipe 13, the bypass line 14
It is provided with bypass cutoff valve 141.By bypass line 14, staff can be completed before sampling operation to gas in sampling line 12
The displacement of body, to improve the accuracy of gas analysis sample.
Further, the sampling stop valve 121 of the present embodiment is arranged on the connectivity part of bypass line 14 and sampling line 12
Between the air inlet of the sampling line 12, vent stop valve 131 is arranged on the connectivity part of bypass line 14 and blow-down pipe 13
Between the air inlet of blow-down pipe 13.
Referring still to Fig. 1, set between the gas outlet of the connectivity part and sampling line 12 of bypass line 14 and sampling line 12
There is an at least stop valve, the stop valve is arranged on sampling line 12.It is provided with two stop valves in the present embodiment, the respectively the 3rd
The stop valve 16 of stop valve 15 and the 4th, and the 3rd stop valve 15 and the 4th stop valve 16 are arranged in series on sampling line 12.Two
The setting of individual stop valve can be easy to the maintenance of sampling line 12, further improve the security of device.
The low temperature atmospheric tank sampler 1 of the present embodiment when being sampled operation, by the import of sampling line 12 with
After storage tank connection, first open sampling stop valve 121 and bypass cutoff valve 141, close the 3rd stop valve 15, the 4th stop valve 16,
First stop valve 112, the second stop valve 113 and vent stop valve 131, by the use of the pressure-fired of storage tank as power, keep taking
The circulation of gas medium in sample pipeline 12, bypass line 14 and blow-down pipe 13, to carry out the displacement of gas in pipeline, so as to
The gas remained in sampling line 12 is discharged.
After the completion of gas displacement, bypass cutoff valve 141 is closed, then open vent stop valve 131, the second stop valve successively
113rd, the first stop valve 112, the 4th stop valve 16 and the 3rd stop valve 15, by the use of the pressure-fired of storage tank as power, by storage tank
Internal gas medium, which is delivered to, to be taken in gas cylinder 111.
After the completion of taking gas operation, vent stop valve 131, the second stop valve 113, the cut-off of the first stop valve the 112, the 4th are closed
Valve 16, the 3rd stop valve 15 and sampling stop valve 121, will take gas unit 11 to pull down and are transported to gas chromatograph 2 and by gas
Chromatography 2 completes the analysis of gas medium.
In practical application, with 20000m3LNG low temperature atmospheric tanks exemplified by, the design pressure of storage tank is 25kPa, is taken
The operating pressure of sample pipeline 12 is also 25kPa.One 20000m3LNG low temperature atmospheric tanks be commonly equipped with the low of 6 sets of the application
Normal temperature and pressure storage tank sampler 1, and the air inlet of sampling line 12 is respectively communicated with the different liquid levels of storage tank in 6 covering devices,
To improve the accuracy of gas analysis sample.
Thus, the low temperature atmospheric tank sampler of the application can put the gas retained in sampling line before sampling
Change totally, obtain most representational gaseous sample, further improve the accuracy of detection and analysis；The device can be effective simultaneously
Ground down-samples the gas medium environmental pollution of analysis process, and avoids gas medium from ensure that the potential safety hazard of the person
The security of sampling operation；Connection by metal hose is used inside gas unit in addition, taking, it is simple in construction, convenient disassembly, improve and take
The operating efficiency of gas operation.
Although describing the utility model with reference to several exemplary embodiments, it is to be understood that, term used is to say
Bright and exemplary and nonrestrictive term.Because the utility model can be embodied without departing from practicality in a variety of forms
New is spiritual or substantive, it should therefore be appreciated that above-mentioned embodiment is not limited to any foregoing details, and should be in right of enclosing
It is required that widely explained in the spirit and scope limited, thus whole changes for falling into claim or its equivalent scope and
Remodeling all should be appended claims and be covered.
Claims (10)
- A kind of 1. sampler of low temperature atmospheric tank, it is characterised in that including：Gas unit is taken, including takes gas cylinder, the air inlet for taking gas cylinder takes the inlet communication of gas unit with this, the gas cylinder that takes Gas outlet takes the outlet of gas unit with this；Sampling line, the air inlet of the sampling line connect with storage tank, and the gas outlet of the sampling line takes gas list with described The inlet communication of member；The sampling line is provided with sampling stop valve.
- 2. the sampler of low temperature atmospheric tank according to claim 1, it is characterised in that the air inlet for taking gas cylinder Place is provided with the first stop valve, and the second stop valve is provided with the gas outlet for taking gas cylinder.
- 3. the sampler of low temperature atmospheric tank according to claim 1, it is characterised in that also including blow-down pipe, institute The air inlet of blow-down pipe and the outlet for taking gas unit are stated, gas outlet and the external environment of the blow-down pipe connect Logical, the blow-down pipe is provided with vent stop valve.
- 4. the sampler of low temperature atmospheric tank according to claim 3, it is characterised in that it is described take gas unit respectively with The sampling line and the blow-down pipe are detachably connected.
- 5. the sampler of low temperature atmospheric tank according to claim 3, it is characterised in that also including bypass line, institute The air inlet for stating bypass line connects with the sampling line, and the gas outlet of the bypass line connects with the blow-down pipe, The bypass line is provided with bypass cutoff valve；The sampling stop valve is arranged on the air inlet of the connectivity part and the sampling line of the bypass line and sampling line Between, the vent stop valve is arranged on the connectivity part of the bypass line and blow-down pipe and the air inlet of the blow-down pipe Between.
- 6. the sampler of low temperature atmospheric tank according to claim 5, it is characterised in that the bypass line and sampling An at least stop valve is provided between the connectivity part of pipeline and the gas outlet of sampling line, the stop valve is arranged in the probe tube On line.
- 7. the sampler of low temperature atmospheric tank according to claim 6, it is characterised in that the stop valve is provided with more Individual, multiple stop valves are arranged in series on the sampling line.
- 8. the sampler of low temperature atmospheric tank according to claim 2, it is characterised in that first stop valve and institute State and be connected by metal hose between the import for taking gas unit, between second stop valve and the outlet for taking gas unit It is connected by metal hose.
- 9. the sampler of low temperature atmospheric tank according to claim 3, it is characterised in that the sampling line and described The caliber of blow-down pipe is DN10~DN25.
- 10. the sampler of low temperature atmospheric tank according to claim 1, it is characterised in that the volume for taking gas cylinder For 100L~500L.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294120.2U CN207197873U (en) | 2017-10-09 | 2017-10-09 | The sampler of low temperature atmospheric tank |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721294120.2U CN207197873U (en) | 2017-10-09 | 2017-10-09 | The sampler of low temperature atmospheric tank |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207197873U true CN207197873U (en) | 2018-04-06 |
Family
ID=61787705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721294120.2U Active CN207197873U (en) | 2017-10-09 | 2017-10-09 | The sampler of low temperature atmospheric tank |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207197873U (en) |
-
2017
- 2017-10-09 CN CN201721294120.2U patent/CN207197873U/en active Active
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