CN203274790U - Recording instrument of measuring gas production volume in sealed container - Google Patents
Recording instrument of measuring gas production volume in sealed container Download PDFInfo
- Publication number
- CN203274790U CN203274790U CN 201320340951 CN201320340951U CN203274790U CN 203274790 U CN203274790 U CN 203274790U CN 201320340951 CN201320340951 CN 201320340951 CN 201320340951 U CN201320340951 U CN 201320340951U CN 203274790 U CN203274790 U CN 203274790U
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- China
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- gas production
- pressure transducer
- production rate
- temperature sensor
- production volume
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Abstract
The utility model relates to a measuring instrument of gas production, and a recording instrument of measuring a gas production volume in a sealed container. The recording instrument of the utility model is characterized in that: an exhaust electromagnetic valve, a pressure sensor, a temperature sensor are arranged at a top of a sealed reaction container; a computer is connected with an acquisition controller through a data line; and the acquisition controller is respectively connected with the exhaust electromagnetic valve, the pressure sensor and the temperature sensor through three signal lines. According to the utility model, the recording instrument of measuring the gas production volume in the sealed container can accurately measure the gas production volume of the gas producer in the sealed space, is especially suitable for the gas production volume measurement in the laboratory, and is suitable for the accurate measurement for the very low gas production volume. At the same time, the gas production time is divided by the gas production volume to get the gas production rate.
Description
Technical field
The utility model relates to the surveying instrument of gas production rate, more specifically relates to a kind of registering instrument of measuring gas production rate in closed container.
Background technology
Need the gas production rate of measuring aerogenesis thing in closed container is measured in a large amount of scientific researches and production production practices, existing surveying instrument is mainly flowmeter, although flowmeter has many types, as spinner-type flowmeter, restriction flowmeter, mass flowmeter, volume-displacement, electromagnetic flowmeter, ultrasonic flow meter etc., but the measurement range of flowmeter is limited, particularly can't accurately measure the extremely low gas production rate of aerogenesis thing.For this reason, remain to be explored the register instrument of the extremely low gas production rate of measurement.
Summary of the invention
The purpose of this utility model: a kind of registering instrument of measuring gas production rate in closed container is provided.
The technical solution of the utility model: a kind of registering instrument of measuring gas production rate in closed container, it is characterized in that, be provided with exhaust solenoid valve, pressure transducer, temperature sensor at the top of closed reaction vessel, computing machine is connected with acquisition controller by data line, and acquisition controller is connected with exhaust solenoid valve, pressure transducer, temperature sensor respectively by three signal wires.
Described pressure transducer is absolute pressure transducer or differential pressure pick-up.
Described pressure transducer also can be the pressure transducer that absolute pressure transducer and differential pressure pick-up combine.So-called combining refers to that absolute pressure transducer is connected with differential pressure pick-up or absolute pressure transducer is in parallel with differential pressure pick-up.
Described acquisition controller is serial ports Control plate, and the model of serial ports Control plate is WQ-20MR-LB.
Described exhaust solenoid valve is straight ejector half solenoid valve.
Described temperature sensor model is PT100 type temperature sensor.
Principle of the present utility model: during aerogenesis produce gas in closed reaction vessel, pressure, the temperature of its in the closed reaction vessel upper cavity will change, utilize pressure transducer accurately to measure the interior change value of pressure of closed reaction vessel, utilize temperature sensor accurately to measure the interior temperature change value of closed reaction vessel, change value of pressure, temperature change value pass to acquisition controller by signal wire, acquisition controller passes to computing machine by data line with change value of pressure, temperature change value again, and computing machine calculates gas production rate by special software.When the pressure in closed reaction vessel reached setting value, acquisition controller was controlled exhaust solenoid valve and is carried out exhaust.The special software of computing machine is the principle design according to calibrating gas equation pV=nRT, in the calibrating gas equation, p is gaseous tension, unit is KPa, V is gas volume, and unit is L, and n is the amount of gaseous matter, unit is mol, R is Avogadro's number 8.31441 ± 0.00026J/ (molK), and T is temperature, and unit is K.Because V is definite value, R is constant, but the variation of p and T obtained by apparatus measures, can be regarded as out thus the variation of gas flow n, thereby can calculate gas production rate, gas production rate obtains gas production rate divided by the aerogenesis time.
The beneficial effects of the utility model: in measurement closed container of the present utility model, the registering instrument of gas production rate can accurately be measured the gas production rate of aerogenesis thing in confined space, is particularly suitable for the laboratory measurement gas production rate, is fit to the accurate measurement of extremely low gas production rate.Gas production rate obtains gas production rate divided by the aerogenesis time simultaneously.
Description of drawings
Accompanying drawing is structural representation of the present utility model.
Embodiment
Below by embodiment, the utility model is further described.
Embodiment 1
As shown in the figure, a kind of registering instrument of measuring gas production rate in closed container, be provided with exhaust solenoid valve 1, pressure transducer 2, temperature sensor 3 at the top of closed reaction vessel 4, computing machine 6 is connected with acquisition controller 5 by data line, and acquisition controller 5 is connected with exhaust solenoid valve 1, pressure transducer 2, temperature sensor 3 respectively by three signal wires; Described pressure transducer 2 is the pressure transducer that absolute pressure transducer and differential pressure pick-up combine, and so-called combining refers to that absolute pressure transducer is connected with differential pressure pick-up or absolute pressure transducer is in parallel with differential pressure pick-up; Described acquisition controller 5 is serial ports Control plate, and the model of serial ports Control plate is WQ-20MR-LB; Described exhaust solenoid valve 1 is straight ejector half solenoid valve; Described temperature sensor 3 models are PT100 type temperature sensor.Aerogenesis thing 7 is housed in closed reaction vessel 4 during use.
As shown in the figure, a kind of registering instrument of measuring gas production rate in closed container, be provided with exhaust solenoid valve 1, pressure transducer 2, temperature sensor 3 at the top of closed reaction vessel 4, computing machine 6 is connected with acquisition controller 5 by data line, and acquisition controller 5 is connected with exhaust solenoid valve 1, pressure transducer 2, temperature sensor 3 respectively by three signal wires; Described pressure transducer 2 is absolute pressure transducer or differential pressure pick-up; Described acquisition controller 5 is serial ports Control plate, and the model of serial ports Control plate is WQ-20MR-LB; Described exhaust solenoid valve 1 is straight ejector half solenoid valve; Described temperature sensor 3 models are PT100 type temperature sensor.Aerogenesis thing 7 is housed in closed reaction vessel 4 during use.
Claims (6)
1. registering instrument of measuring gas production rate in closed container, it is characterized in that, be provided with exhaust solenoid valve (1), pressure transducer (2), temperature sensor (3) at the top of closed reaction vessel (4), computing machine (6) is connected with acquisition controller (5) by data line, and acquisition controller (5) is connected with exhaust solenoid valve (1), pressure transducer (2), temperature sensor (3) respectively by three signal wires.
2. by the registering instrument of gas production rate in measurement closed container claimed in claim 1, it is characterized in that, described pressure transducer (2) is absolute pressure transducer or differential pressure pick-up.
3. by the registering instrument of gas production rate in measurement closed container claimed in claim 1, it is characterized in that, described pressure transducer (2) is the pressure transducer that absolute pressure transducer and differential pressure pick-up combine.
4. by the registering instrument of gas production rate in measurement closed container claimed in claim 1, it is characterized in that, described acquisition controller (5) is serial ports Control plate, and the model of serial ports Control plate is WQ-20MR-LB.
5. by the registering instrument of gas production rate in measurement closed container claimed in claim 1, it is characterized in that, described exhaust solenoid valve (1) is straight ejector half solenoid valve.
6. by the registering instrument of gas production rate in measurement closed container claimed in claim 1, it is characterized in that, described temperature sensor (3) model is PT100 type temperature sensor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340951 CN203274790U (en) | 2013-06-15 | 2013-06-15 | Recording instrument of measuring gas production volume in sealed container |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320340951 CN203274790U (en) | 2013-06-15 | 2013-06-15 | Recording instrument of measuring gas production volume in sealed container |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274790U true CN203274790U (en) | 2013-11-06 |
Family
ID=49505177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320340951 Expired - Fee Related CN203274790U (en) | 2013-06-15 | 2013-06-15 | Recording instrument of measuring gas production volume in sealed container |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274790U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278206A (en) * | 2013-06-15 | 2013-09-04 | 钟弦 | Measuring instrument for measuring gas production of sealed container |
-
2013
- 2013-06-15 CN CN 201320340951 patent/CN203274790U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103278206A (en) * | 2013-06-15 | 2013-09-04 | 钟弦 | Measuring instrument for measuring gas production of sealed container |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131106 Termination date: 20140615 |
|
| EXPY | Termination of patent right or utility model |