CN205450010U - Continuous liquefied petroleum gas sample introduction system for experimental device - Google Patents
Continuous liquefied petroleum gas sample introduction system for experimental device Download PDFInfo
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- CN205450010U CN205450010U CN201620147697.XU CN201620147697U CN205450010U CN 205450010 U CN205450010 U CN 205450010U CN 201620147697 U CN201620147697 U CN 201620147697U CN 205450010 U CN205450010 U CN 205450010U
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- material transfer
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- 239000003915 liquefied petroleum gas Substances 0.000 title claims abstract description 49
- 239000002994 raw material Substances 0.000 claims abstract description 56
- 238000012546 transfer Methods 0.000 claims abstract description 54
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 27
- 239000007789 gas Substances 0.000 claims description 16
- 229910052757 nitrogen Inorganic materials 0.000 claims description 14
- 239000007788 liquid Substances 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 2
- 238000005070 sampling Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 239000003054 catalyst Substances 0.000 description 3
- BZLVMXJERCGZMT-UHFFFAOYSA-N Methyl tert-butyl ether Chemical compound COC(C)(C)C BZLVMXJERCGZMT-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 238000010926 purge Methods 0.000 description 2
- 230000029936 alkylation Effects 0.000 description 1
- 238000005804 alkylation reaction Methods 0.000 description 1
- 238000005899 aromatization reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000002779 inactivation Effects 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 150000002829 nitrogen Chemical class 0.000 description 1
- -1 nitrogen cylinder Chemical compound 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model provides a continuous sampling system of liquefied petroleum gas for experimental apparatus, set up in experimental apparatus's entry end, include: a raw material transfer tank connected with an LPG tank or an air source; the inlet end of each raw material tank is connected with the outlet end of the raw material transfer tank, and each raw material tank is connected with the raw material transfer tank in parallel; at least two weight measuring devices, wherein each weight measuring device is correspondingly arranged at the bottom of each raw material tank; and the inlet end of the raw material metering device is connected with the outlet ends of the two raw material tanks, and the outlet end of the raw material metering device is connected with the inlet end of the experimental device.
Description
Technical field
This utility model relates to a kind of for petrochemical industry experimental provision sampling system, particularly to one for petrochemical industry experimental provision LPG continuous sample inlet system, belongs to technical field of petrochemical industry.
Background technology
Liquefied petroleum gas (LPG) is the by-product of petroleum refining process, wherein contains a large amount of C3, C4 hydro carbons.How Appropriate application LPG, being translated into chemical products with high added-value has become an important topic of current petroleum refining industry.Having carried out a large amount of related work for this many scientific research institution, carried out such as etherificate and prepared methyl tertiary butyl ether(MTBE), aromatisation prepares light aromatics, and the researchs such as gasoline are prepared in alkylation.
The groundwork direction of these researchs is exploitation efficient catalyst, is required to use catalyst test apparatus in R&D process.Each evaluating apparatus, due to the difference of mechanism of catalytic reaction, all has certain difference at aspects such as technological process, system controls.But it is the simulation realizing industrial process conditions, all uses liquid phase feeding.Requiring that experimental provision is capable of long-time continuous stable charging for investigating catalyst life and inactivation, metering should be able to be accurate in real time, operationally also requires that simplicity simultaneously.
Laboratory generally uses electronic balance as metering outfit, but to be exactly measures range the biggest for its shortcoming, precision is the lowest.In order to realize accurate metering, just to require that sample introduction head tank can not design the biggest.But design the least long-time stable that can not realize again to feed.
Utility model content
The purpose of this utility model is to provide a kind of liquefied petroleum gas continuous sample inlet system for experimental provision.It is capable of LPG long-time continuous stable by described continuous sample inlet system to feed, the most accurately measures.
To achieve these goals, this utility model provides a kind of liquefied petroleum gas continuous sample inlet system for experimental provision, including:
One raw material transfer tank, is connected with a LPG tank or a source of the gas；
At least two head tanks, the arrival end of each described head tank all ports of export with described raw material transfer tank are connected, and each described head tank is all connected in parallel with described raw material transfer tank；
At least two weight-measuring devices, each described weight-measuring device is correspondingly arranged in bottom each described head tank；
One dispenser, the arrival end of described dispenser is connected with the port of export of each described two head tanks, and the port of export of described dispenser is connected with the arrival end of described experimental provision.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, the arrival end of described raw material transfer tank is positioned at described raw material transfer tank top, the arrival end of described raw material transfer tank is connected by one first inlet tube and a source of the gas or LPG tank, this first inlet tube is provided with one first stop valve, described raw material transfer tank top is provided with one first pressure tester, the port of export of described raw material transfer tank is positioned at the bottom of described raw material transfer tank, and the port of export of described raw material transfer tank is connected with the arrival end of each described head tank by one first outlet.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, the arrival end of each described head tank is positioned at the top of described head tank, it is additionally provided with multiple inlet valve on described first inlet tube, each described inlet valve is arranged near the arrival end of each described head tank, the port of export of each described head tank is positioned at the bottom of described head tank, the port of export of each described head tank is connected with the arrival end of described dispenser by one second outlet, described second outlet is provided with multiple outlet valve, each described outlet valve is arranged near the port of export of each described head tank.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, described second outlet is additionally provided with a liquid filter and one second atmospheric valve, described liquid filter and described second atmospheric valve and arranges near the arrival end of described dispenser.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, each described head tank top is equipped with a ftercompction pipeline, described ftercompction pipeline and a source of the gas connect, each described ftercompction pipeline is provided with one second pressure tester and a pressure-supplementing valve, and each described head tank top is additionally provided with one first atmospheric valve.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, described material flow metering device is a dosing pump.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, the port of export of described dosing pump is connected with experimental provision by one the 3rd outlet, and described 3rd outlet is provided with one second stop valve, a check valve and one the 3rd atmospheric valve, the 3rd pressure tester.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, described raw material transfer tank volume is 40L.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, the volume of each described head tank all selects 4L.
The above-mentioned liquefied petroleum gas continuous sample inlet system for experimental provision, described source of the gas is a nitrogen cylinder, and described weight-measuring device is an electronic balance, and precision is 0.01g.
Beneficial effect of the present utility model is:
This LPG continuous sample inlet system is capable of the charging of LPG long-time continuous stable, the most accurately measures, and the research for liquefied petroleum gas deep processing provides guarantee reliably.
Accompanying drawing explanation
Fig. 1 is a kind of liquefied petroleum gas continuous sample inlet system structural representation for experimental provision.
Wherein reference is:
Raw material transfer tank 1
First inlet tube 11
First stop valve 111
First Pressure gauge 12
First outlet 13
Transfer tank outlet valve 131
First head tank 2
First ftercompction pipe 21
First pressure-supplementing valve 211
Second Pressure gauge 212
First inlet valve 22
First atmospheric valve 24
Second head tank 3
Second ftercompction pipe 31
Second pressure-supplementing valve 311
3rd Pressure gauge 312
Second inlet valve 32
Second outlet 33
First outlet valve 331
Second outlet valve 332
Liquid filter 333
Second atmospheric valve 334
First electronic balance 4
Second electronic balance 5
Dosing pump 6
3rd outlet 61
Second stop valve 611
Check valve 612
3rd atmospheric valve 613
4th Pressure gauge 614
Experimental provision 7
Source of the gas 8
Detailed description of the invention
With specific embodiment, this utility model is described in further detail below in conjunction with the accompanying drawings.
This utility model provides a kind of liquefied petroleum gas continuous sample inlet system for experimental provision, including:
One raw material transfer tank 1, is connected with a LPG tank or a source of the gas 8, and this raw material transfer tank 1 is additionally provided with one first pressure tester, and this pressure tester is one first Pressure gauge 12；
At least two head tanks, the arrival end of each head tank all ports of export with raw material transfer tank 1 are connected, and each head tank is all connected in parallel with raw material transfer tank 1；Each first head tank top is equipped with a ftercompction pipe, and each ftercompction Guan Junyu mono-source of the gas connects, and ftercompction pipe is equipped with one second pressure tester, and this second pressure tester is also a Pressure gauge；
At least two weight-measuring devices, each weight-measuring device is correspondingly arranged in bottom each head tank, and the weight-measuring device that this device uses is electronic balance；
One dispenser, the arrival end of dispenser is connected with the port of export of every one or two head tank, and the port of export of dispenser is connected with the arrival end of experimental provision 7, and the dispenser that this utility model uses is dosing pump 6.
In this utility model one preferred embodiment, head tank number is two, i.e. first head tank 2 and the second head tank 3, being respectively equipped with first electronic balance the 4, second electronic balance 5 bottom corresponding first head tank 2 and the second head tank 3, head tank 2 is arranged in parallel with the second head tank 3.
nullWherein，Raw material transfer tank 1 top is provided with the first Pressure gauge 12,The arrival end of raw material transfer tank 1 is positioned at raw material transfer tank 1 top，The arrival end of raw material transfer tank 1 is connected with a source of the gas 8 or LPG tank (not shown) by one first inlet tube 11，This first inlet tube 11 is provided with one first stop valve 111，The port of export of raw material transfer tank 1 is positioned at the bottom of raw material transfer tank 1，The port of export of raw material transfer tank 1 by one first outlet 13 respectively with the arrival end of the first head tank 2、The arrival end of the second head tank 3 connects，First head tank 2 and the second head tank 3 arrival end are respectively positioned on the top of described head tank，In detail it，First outlet 13 is provided with transfer tank outlet valve 131、First inlet valve 22、Second inlet valve 32，Transfer tank outlet valve 131 is arranged near the port of export of raw material transfer tank 1，First inlet valve 22 is arranged near the arrival end of the first head tank 2，Second inlet valve 32 is arranged near the arrival end of the second head tank 3.
nullThe top of the first head tank 2 and the second head tank 3 is equipped with one first atmospheric valve 24，The top of the first head tank 2 and the second head tank 3 is equipped with the second pressure tester，This second pressure tester is respectively positioned on ftercompction pipe，This ftercompction pipe includes the first ftercompction pipe 21、Second ftercompction pipe 31，First ftercompction pipe 21、Second ftercompction pipe 31 is all connected with a source of the gas，This source of the gas is a nitrogen cylinder，Second pressure tester includes the second Pressure gauge 212、3rd Pressure gauge 312，First ftercompction pipe 21 is arranged at the first head tank 2 top，Second ftercompction pipe 31 is arranged at the top of the second head tank 3，First ftercompction pipe 21 is provided with the first pressure-supplementing valve 211、Second Pressure gauge 212，Second ftercompction pipe 31 is provided with the second pressure-supplementing valve 311、3rd Pressure gauge 312，The port of export of the first head tank 2 and the second head tank 3 is respectively positioned on the bottom of head tank，First head tank 2 is all connected with the arrival end of dosing pump 6 by one second outlet 33 with the port of export of the second head tank 3，Second outlet 33 is provided with the first outlet valve 331、Second outlet valve 33、Liquid filter 333 and one second atmospheric valve 334，First outlet valve 331 is arranged near the port of export of the first head tank 2，Second inlet valve 332 is arranged near the port of export of the second head tank 3，Liquid filter 333 and one second atmospheric valve 334 are arranged near the arrival end of dosing pump 6.
The port of export of dosing pump 6 is connected with an experimental provision 7 by one the 3rd outlet 61, on 3rd outlet, 61 are provided with one second stop valve 611, check valve 612, the 3rd atmospheric valve 613 and the 3rd pressure tester, and the 3rd pressure tester is one the 4th Pressure gauge 614.Raw material transfer tank 1 volume is 40L.The volume of first head tank the 2, second head tank 3 all selects 4L, and the precision of electronic balance is 0.01g.The source of the gas that the present embodiment uses is source nitrogen, such as nitrogen cylinder, nitrogen is passed through raw material transfer tank the 1, first head tank 2 and the second head tank 3, in order to raw material transfer tank the 1, first head tank 2 and the second head tank 3 to be carried out purging displacement, closes all of valve on this continuous sample inlet system afterwards.
In preferred embodiment of the present utility model, first inlet tube 11 on raw material transfer tank 1 top, this first inlet tube 11 can be connected with a source nitrogen, needs when practical operation to be connected with a LPG tank when injecting LPG.
See Fig. 1, above for this utility model continuous sample inlet system structure, next the practical operation flow process of this utility model one preferred embodiment is described, as follows:
Step 1, source of the gas (nitrogen cylinder) is connected with raw material transfer tank 1 by the first inlet tube 11, nitrogen cylinder is connected with the first head tank 2 by the first ftercompction pipe 21, this nitrogen cylinder is connected with the second head tank 3 by the second ftercompction pipe 31 tunnel, open first stop valve the 111, first pressure-supplementing valve the 211, second pressure-supplementing valve 311 respectively, carry out purging displacement in nitrogen is injected separately into raw material transfer tank the 1, first head tank the 2, second head tank 3, close all of valve in continuous sample inlet system afterwards.
Step 2, reads the number of degrees M1, the M2 on first electronic balance the 4, second electronic balance 5 corresponding bottom first head tank the 2, second head tank 3 respectively, and M1, M2 are as the initial mass of first head tank the 2, second head tank 3.
Step 3, disconnects the connection of the first inlet tube 11 and nitrogen cylinder, is attached with outside LPG tank by the first inlet tube 11, opens the first stop valve 111 and fill LPG, until pressure reaches 0.4MPa in raw material transfer tank 1, disconnects and being connected with outside LPG tank.
Step 4, then the first inlet tube 11 of raw material transfer tank 1 is connected with nitrogen cylinder, open the first stop valve 111, then fill nitrogen, until the pressure in raw material transfer tank 1 reaches 1MPa in raw material transfer tank 1.
Step 5, opens the transfer tank outlet valve 131 bottom raw material transfer tank 1.
Step 6, opens the first inlet valve 22 of the first head tank 2, carries out LPG and fills, until the first head tank 2 pressure reaches 0.4MPa.
Step 7, the first pressure-supplementing valve 211 opening the first head tank 2 carries out ftercompction, until the first head tank 2 pressure reaches 0.6MPa.
Step 8, reads the mass M 1 ' of the first head tank 2 of display on the first electronic balance 4.
Step 9, opens the second inlet valve 32 of the second head tank 3, carries out LPG and fills, until the pressure in the second head tank 3 reaches 0.4MPa.
Step 10, the second pressure-supplementing valve 311 opened on the second head tank 3 carries out ftercompction, until the pressure in the second head tank 3 reaches 0.6MPa.
Step 11, reads the mass M 2 ' of now the second head tank 3 by the second electronic balance 5.
Step 12, opens the second stop valve 611 of dosing pump 6, is necessary flow by dosing pump 6 flow set.
Step 13, opens the first outlet valve 331 of the first head tank 2.
Step 14, is opened dosing pump 6, is fed experimental provision by the export pipeline of dosing pump 6.
Step 15, reads the instant quality of the first head tank 2 by the first electronic balance 4, as instant quality≤initial mass+0.1kg, closes the first outlet valve 331 of the first head tank 2, opens the second inlet valve 332 of the second head tank 3, repeats step 6～8 afterwards.
Step 16, reads the instant quality of the second head tank 3 by the second electronic balance 5, as instant quality≤initial mass+0.1kg, closes the second inlet valve 332 of the second head tank 3, opens the first outlet valve 331 of the first head tank 2, repeats step 9～11 afterwards.
Step 17, when in raw material transfer tank 1, pressure is down to 0.8MPa, repeats step 3～4.
In a word, LPG inlet amount is calculated by the variable quantity of electronic balance in the corresponding time.
The foregoing is only preferred embodiment of the present utility model, be not used to limit the scope of the claims of the present utility model, other use the equivalence change of patent spirit of the present utility model, all should all belong to the scope of the claims of the present utility model.
Claims (10)
1., for a liquefied petroleum gas continuous sample inlet system for experimental provision, it is arranged at the arrival end of described experimental provision, it is characterised in that including:
One raw material transfer tank, is connected with a LPG tank or a source of the gas；
At least two head tanks, the arrival end of each described head tank all ports of export with described raw material transfer tank are connected, and each described head tank is all connected in parallel with described raw material transfer tank；
At least two weight-measuring devices, each described weight-measuring device is correspondingly arranged in bottom each described head tank；
One dispenser, the arrival end of described dispenser is connected with the port of export of each described two head tanks, and the port of export of described dispenser is connected with the arrival end of described experimental provision.
2. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterized in that, the arrival end of described raw material transfer tank is positioned at described raw material transfer tank top, the arrival end of described raw material transfer tank is connected by one first inlet tube and a source of the gas or LPG tank, this first inlet tube is provided with one first stop valve, described raw material transfer tank top is provided with one first pressure tester, the port of export of described raw material transfer tank is positioned at the bottom of described raw material transfer tank, the port of export of described raw material transfer tank is connected with the arrival end of each described head tank by one first outlet.
3. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 2, it is characterized in that, the arrival end of each described head tank is positioned at the top of described head tank, it is additionally provided with multiple inlet valve on described first inlet tube, each described inlet valve is arranged near the arrival end of each described head tank, the port of export of each described head tank is positioned at the bottom of described head tank, the port of export of each described head tank is connected with the arrival end of described dispenser by one second outlet, described second outlet is provided with multiple outlet valve, each described outlet valve is arranged near the port of export of each described head tank.
4. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 3, it is characterized in that, it is additionally provided with a liquid filter and one second atmospheric valve, described liquid filter and described second atmospheric valve on described second outlet and arranges near the arrival end of described dispenser.
5. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterized in that, each described head tank top is equipped with a ftercompction pipeline, described ftercompction pipeline and a source of the gas connect, each described ftercompction pipeline is provided with one second pressure tester and a pressure-supplementing valve, and each described head tank top is additionally provided with one first atmospheric valve.
6. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterised in that described material flow metering device is a dosing pump.
7. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 6, it is characterized in that, the port of export of described dosing pump is connected with experimental provision by one the 3rd outlet, and described 3rd outlet is provided with one second stop valve, a check valve and one the 3rd atmospheric valve, the 3rd pressure tester.
8. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterised in that described raw material transfer tank volume is 40L.
9. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterised in that the volume of each described head tank all selects 4L.
10. the liquefied petroleum gas continuous sample inlet system for experimental provision as claimed in claim 1, it is characterised in that described source of the gas is a nitrogen cylinder, and described weight-measuring device is an electronic balance, and precision is 0.01g.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147697.XU CN205450010U (en) | 2016-02-26 | 2016-02-26 | Continuous liquefied petroleum gas sample introduction system for experimental device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147697.XU CN205450010U (en) | 2016-02-26 | 2016-02-26 | Continuous liquefied petroleum gas sample introduction system for experimental device |
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| Publication Number | Publication Date |
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| CN205450010U true CN205450010U (en) | 2016-08-10 |
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| CN201620147697.XU Active CN205450010U (en) | 2016-02-26 | 2016-02-26 | Continuous liquefied petroleum gas sample introduction system for experimental device |
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| CN (1) | CN205450010U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991126A (en) * | 2019-04-18 | 2019-07-09 | 西南石油大学 | Super-viscous oil mixes liquefied petroleum gas fluidity evaluating method and its corollary apparatus |
-
2016
- 2016-02-26 CN CN201620147697.XU patent/CN205450010U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109991126A (en) * | 2019-04-18 | 2019-07-09 | 西南石油大学 | Super-viscous oil mixes liquefied petroleum gas fluidity evaluating method and its corollary apparatus |
| CN109991126B (en) * | 2019-04-18 | 2021-07-02 | 西南石油大学 | Super heavy oil mixed with liquefied petroleum gas fluidity evaluation method and matching device thereof |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |