CN105716915A - Nondestructive measurement device and method for gas concentration in high-pressure reactor - Google Patents
Nondestructive measurement device and method for gas concentration in high-pressure reactor Download PDFInfo
- Publication number
- CN105716915A CN105716915A CN201610202047.5A CN201610202047A CN105716915A CN 105716915 A CN105716915 A CN 105716915A CN 201610202047 A CN201610202047 A CN 201610202047A CN 105716915 A CN105716915 A CN 105716915A
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- cylinder
- ball valve
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- piston
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- 238000000034 method Methods 0.000 title claims abstract description 20
- 238000005259 measurement Methods 0.000 title description 3
- 239000007789 gas Substances 0.000 claims description 58
- 230000001066 destructive effect Effects 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 8
- 230000000694 effects Effects 0.000 claims description 3
- 238000013100 final test Methods 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 238000011084 recovery Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/22—Devices for withdrawing samples in the gaseous state
- G01N1/24—Suction devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/0004—Gaseous mixtures, e.g. polluted air
- G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
- G01N33/0011—Sample conditioning
- G01N33/0016—Sample conditioning by regulating a physical variable, e.g. pressure or temperature
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Pathology (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Molecular Biology (AREA)
- Biomedical Technology (AREA)
- Combustion & Propulsion (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a nondestructive measuring device and a nondestructive measuring method for gas concentration in a high-pressure reactor, and the nondestructive measuring device comprises a ball valve I, wherein one end of the ball valve I is connected with the high-pressure reactor, the other end of the ball valve I is connected with the front end of a cylinder, a piston is arranged in the cylinder, the tail end of the cylinder is provided with a spiral push rod, the spiral push rod is in threaded fit with the cylinder and is connected with the piston, the side wall of the cylinder is provided with a ball valve II, a gas concentration sensor and a vacuum pressure gauge. According to the invention, in the process of reciprocating sliding of the piston, pressure relief and pressurization of gas in the cylinder are realized, the conversion of high-pressure gas in the high-pressure reactor to normal-pressure gas is realized in the pressure relief process, the environment for measuring the concentration of the normal-pressure concentration sensor is met, so that the concentration of the gas in the high-pressure reactor is measured, and the gas is fed back into the high-pressure reactor in the pressurization process, so that the requirements of recovering the pressure of an original gas source and ensuring the amount of the gas to be lossless are met.
Description
Technical field
The present invention relates to gas concentration detection apparatus, gas concentration non-destructive determination device and method in especially a kind of high-pressure reactor.
Background technology
It is known that can often be filled with in high-pressure reactor in doing the process tested, there are certain density gases at high pressure, owing to gas concentration often changes in the process of experiment, it is necessary to often measure the gas concentration under record high pressure conditions.But, general concentration sensor all cannot under high pressure use, can only be operated under an atmospheric pressure, if being additionally sampled under elevated pressure conditions and sampler can being caused to damage or sampling process causes gas loss in high-pressure reactor, cause that in experimentation mesohigh reactor, gaseous state changes, finally affect process and the result of experiment.
Summary of the invention
Goal of the invention: for the problems referred to above, present invention aim to provide gas concentration non-destructive determination device and method in a kind of high-pressure reactor, to guarantee the gas concentration in Accurate Determining high-pressure reactor, and ensure that gas flow free of losses, gaseous state are unchanged.
To achieve these goals, present invention employs following technical scheme: gas concentration non-destructive determination device in a kind of high-pressure reactor, including ball valve one, pressure vacuum gauge, cylinder, sealing ring, piston, spiral handspike, gas concentration sensor and ball valve two, ball valve one one end connects high-pressure reactor, ball valve one other end connects cylinder front end, piston it is provided with in cylinder, cylinder tail end is provided with spiral handspike, spiral handspike and cylinder threaded engagement are also connected with piston, cylinder sidewall is provided with ball valve two, gas concentration sensor and pressure vacuum gauge, ball valve two connects vacuum pump.
Further, described piston is provided with sealing ring.
According to gas concentration non-destructive determination method in the high-pressure reactor of said apparatus, comprise the following steps:
Step one: rotating screw push rod moves to cylinder tail end, allows piston be in free state, closes ball valve one, open ball valve two, utilizes vacuum pump to cylinder interior gas evacuation, after vacuum meets requirement, closes ball valve two；
Step 2: slowly open ball valve one and allow a part of gases at high pressure in high-pressure reactor enter in cylinder, then close ball valve one immediately, slowly slide to cylinder tail end at high-pressure gas pressure effect lower piston, realize high pressure air reducing, then reach internal and external pressure balance, when piston remains stationary as, utilize gas concentration sensor record gas concentration；
Step 3: after concentration records, rotating screw push rod slowly moves to cylinder front end, and spiral handspike can promote piston to move forward in the process advanced, and cylinder interior gas is pressurizeed, it is again turned on ball valve one, continuing afterburning rotating screw push rod, when piston arrives cylinder front position, stop the rotation spiral handspike, close ball valve one, the final test gas that realizes all covers in high-pressure reactor again, thus ensureing state, free of losses before gas recovery measurement in high-pressure reactor.
Beneficial effect: the present invention utilizes in the process that piston slidably reciprocates, realize the pressure relief of gas in cylinder and supercharging, stress-relief process realizes high-pressure reactor mesohigh gas to the transformation of atmosphere gas, meet the environment that normal pressure concentration sensor concentration measures, thus carrying out the mensuration of gas concentration in high-pressure reactor, pressurization allows gas cover in high-pressure reactor, meets the original bleed pressure of recovery and gas flow is lossless.
Accompanying drawing explanation
Fig. 1 be the present invention a kind of high-pressure reactor in the structure chart of gas concentration non-destructive determination device.
Detailed description of the invention:
Below in conjunction with accompanying drawing the present invention done and further explain.
As shown in Figure 1, gas concentration non-destructive determination device in a kind of high-pressure reactor of the present invention, including ball valve 1, pressure vacuum gauge 2, cylinder 3, sealing ring 4, piston 5, spiral handspike 6, gas concentration sensor 7 and ball valve 28, ball valve 1 one end connects high-pressure reactor, ball valve 1 other end connects cylinder 3 front end, piston 5 it is provided with in cylinder 3, described piston 5 is provided with sealing ring 4, cylinder 3 tail end is provided with spiral handspike 6, spiral handspike 6 is connected with cylinder 3 threaded engagement and with piston 5, cylinder 3 sidewall is provided with ball valve 28, gas concentration sensor 7 and pressure vacuum gauge 2, ball valve 28 connects vacuum pump.
By utilizing spiral handspike 6 to rotate into, cylinder can promote piston 5 to make cylinder 3 enters in high-pressure reactor again through ball valve 1 after gas boosting to the gas pressurized in cylinder 3.The combination of piston 5 and sealing ring 4 can ensure that in cylinder 3 slidably, and can gas in sealing cylinder 3, and the gas pressure No leakage within 1.5MPa can be born.
According to gas concentration non-destructive determination method in the high-pressure reactor of said apparatus, comprise the following steps:
Step one: rotating screw push rod 6 moves to cylinder 3 tail end, allows piston 5 be in free state, closes ball valve 1, open ball valve 28, utilizes vacuum pump to gas evacuation in cylinder 3, after vacuum meets requirement, closes ball valve 28；
Step 2: slowly open ball valve 1 and allow a part of gases at high pressure in high-pressure reactor enter in cylinder 3, then close ball valve 1 immediately, slowly slide to cylinder 3 tail end at high-pressure gas pressure effect lower piston 5, realize high pressure air reducing, then reach internal and external pressure balance, when piston 5 remains stationary as, gas concentration sensor 7 is utilized to record gas concentration；
Step 3: after concentration records, rotating screw push rod 6 slowly moves to cylinder 3 front end, spiral handspike 6 can promote piston 5 to move forward in the process advanced, gas in cylinder 3 is pressurizeed, it is again turned on ball valve 1, continue afterburning rotating screw push rod 6, when piston 5 arrives cylinder 3 front position, stop the rotation spiral handspike 6, close ball valve 1, the final test gas that realizes all covers in high-pressure reactor again, thus ensureing state, free of losses before gas recovery measurement in high-pressure reactor.
The above is only the preferred embodiment of the present invention; it should be pointed out that, for those skilled in the art, under the premise without departing from the principles of the invention; can also making some improvements and modifications, these improvements and modifications also should be regarded as protection scope of the present invention.
Claims (3)
1. gas concentration non-destructive determination device in a high-pressure reactor, it is characterized in that: include ball valve one (1), pressure vacuum gauge (2), cylinder (3), sealing ring (4), piston (5), spiral handspike (6), gas concentration sensor (7) and ball valve two (8), ball valve one (1) one end connects high-pressure reactor, ball valve one (1) other end connects cylinder (3) front end, piston (5) it is provided with in cylinder (3), cylinder (3) tail end is provided with spiral handspike (6), spiral handspike (6) is connected with cylinder (3) threaded engagement and with piston (5), cylinder (3) sidewall is provided with ball valve two (8), gas concentration sensor (7) and pressure vacuum gauge (2), ball valve two (8) connects vacuum pump.
2. gas concentration non-destructive determination device in a kind of high-pressure reactor according to claim 1, it is characterised in that: described piston (5) is provided with sealing ring (4).
3. gas concentration non-destructive determination method in the high-pressure reactor of device according to claim 1, it is characterised in that comprise the following steps:
Step one: rotating screw push rod (6) moves to cylinder (3) tail end, piston (5) is allowed to be in free state, close ball valve one (1), open ball valve two (8), utilize vacuum pump to the interior gas evacuation of cylinder (3), after vacuum meets requirement, close ball valve two (8)；
Step 2: slowly open ball valve one (1) and allow a part of gases at high pressure in high-pressure reactor enter in cylinder (3), then close ball valve one (1) immediately, slowly slide to cylinder (3) tail end at high-pressure gas pressure effect lower piston (5), realize high pressure air reducing, then reach internal and external pressure balance, when piston (5) remains stationary as, utilize gas concentration sensor (7) record gas concentration；
Step 3: after concentration records, rotating screw push rod (6) slowly moves to cylinder (3) front end, spiral handspike (6) can promote piston (5) to move forward in the process advanced, cylinder (3) interior gas is pressurizeed, it is again turned on ball valve one (1), continue afterburning rotating screw push rod (6), when piston (5) arrives cylinder (3) front position, stop the rotation spiral handspike (6), close ball valve one (1), the final test gas that realizes all covers in high-pressure reactor again, thus ensureing that in high-pressure reactor, gas recovers to measure front state, free of losses.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202047.5A CN105716915A (en) | 2016-04-01 | 2016-04-01 | Nondestructive measurement device and method for gas concentration in high-pressure reactor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610202047.5A CN105716915A (en) | 2016-04-01 | 2016-04-01 | Nondestructive measurement device and method for gas concentration in high-pressure reactor |
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| CN105716915A true CN105716915A (en) | 2016-06-29 |
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| CN201610202047.5A Pending CN105716915A (en) | 2016-04-01 | 2016-04-01 | Nondestructive measurement device and method for gas concentration in high-pressure reactor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983832A (en) * | 2017-06-01 | 2018-12-11 | 河北农业大学 | Device and method for automatically and accurately preparing high-pressure carbon dioxide with specific concentration |
Citations (7)
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|---|---|---|---|---|
| US5379654A (en) * | 1993-04-14 | 1995-01-10 | Intevep, S.A. | Method and apparatus for the analysis of gas in a medium |
| CN2272301Y (en) * | 1996-01-11 | 1998-01-14 | 北京市二龙路医院 | Spiral type semi-solid defecation radiography syringe |
| CN2816787Y (en) * | 2005-09-07 | 2006-09-13 | 中国石化胜利油田有限公司采油工艺研究院 | High-pressure gas-liquid two-plase sampler |
| CN2844889Y (en) * | 2005-12-01 | 2006-12-06 | 华东师范大学 | Low pressure or negative pressure gas sampler |
| CN202916160U (en) * | 2012-10-24 | 2013-05-01 | 中国石油天然气股份有限公司 | High-pressure-resistant light-weight fluid sample filling device |
| CN103412014A (en) * | 2013-06-28 | 2013-11-27 | 广东电网公司电力科学研究院 | On-line detection instrument and method for hydrogen fluoride gas |
| CN204882170U (en) * | 2015-06-18 | 2015-12-16 | 东北石油大学 | Pressure measurement gas sampling ware |
-
2016
- 2016-04-01 CN CN201610202047.5A patent/CN105716915A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5379654A (en) * | 1993-04-14 | 1995-01-10 | Intevep, S.A. | Method and apparatus for the analysis of gas in a medium |
| CN2272301Y (en) * | 1996-01-11 | 1998-01-14 | 北京市二龙路医院 | Spiral type semi-solid defecation radiography syringe |
| CN2816787Y (en) * | 2005-09-07 | 2006-09-13 | 中国石化胜利油田有限公司采油工艺研究院 | High-pressure gas-liquid two-plase sampler |
| CN2844889Y (en) * | 2005-12-01 | 2006-12-06 | 华东师范大学 | Low pressure or negative pressure gas sampler |
| CN202916160U (en) * | 2012-10-24 | 2013-05-01 | 中国石油天然气股份有限公司 | High-pressure-resistant light-weight fluid sample filling device |
| CN103412014A (en) * | 2013-06-28 | 2013-11-27 | 广东电网公司电力科学研究院 | On-line detection instrument and method for hydrogen fluoride gas |
| CN204882170U (en) * | 2015-06-18 | 2015-12-16 | 东北石油大学 | Pressure measurement gas sampling ware |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108983832A (en) * | 2017-06-01 | 2018-12-11 | 河北农业大学 | Device and method for automatically and accurately preparing high-pressure carbon dioxide with specific concentration |
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Application publication date: 20160629 |
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