CN1325900C - Digital display type liquefied petroleum gas density meter device - Google Patents
Digital display type liquefied petroleum gas density meter device Download PDFInfo
- Publication number
- CN1325900C CN1325900C CNB200310115078XA CN200310115078A CN1325900C CN 1325900 C CN1325900 C CN 1325900C CN B200310115078X A CNB200310115078X A CN B200310115078XA CN 200310115078 A CN200310115078 A CN 200310115078A CN 1325900 C CN1325900 C CN 1325900C
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- petroleum gas
- liquefied petroleum
- pressure
- probe
- temperature
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The present invention discloses a digital display liquefied petroleum gas densimeter, which belongs to a density test technique of mechanical measurement. A pressure probe and a temperature probe are arranged in a metal sampling tank. The bottom of the sampling tank is arranged on a force transducer. Signals of the pressure probe, the temperature probe and the force transducer are inputted to an intelligent secondary meter by an aviation plug in a centralized way. When the liquefied petroleum gas is filled in the sampling tank, the measurement values of the temperature, the pressure and the density of the liquefied petroleum gas in the tank are converted into electric signals by the temperature probe, the pressure probe and the force transducer. After the electric signals are processed by the intelligent secondary meter, the density value and the standard density value of the liquefied petroleum gas in the states of certain temperature and certain pressure can be directly displayed.
Description
(1) technical field
The invention belongs to the density measurement technology of mechanics metering, it has the function that numeral shows test solution liquefied oil gas density value.Its principle is that the test solution liquefied oil gas is poured in the metal sampling jar, under its certain pressure and temperature conditions, is that electric signal sends into that secondary instrument is treated can directly to show its density value by high-accuracy force cell with liquefied petroleum gas (LPG) quality conversion in the jar.
(2) background technology
In laboratory and the work liquefied petroleum gas (LPG) is carried out density measure at present and all be to use liquefied petroleum gas (LPG) densitometer device basically.This device is taken into account tensimeter by liquefied petroleum gas (LPG) densitometer, pressure vessel, constant temperature water bath, temperature and is formed.The liquefied petroleum gas (LPG) densitometer is a kind of pressure type densitometer, and it bears the about 1.4MP of pressure
A.Pressure vessel is used for splendid attire liquefied petroleum gas (LPG) sample, and inlet valve, vent valve are housed on it.Glass temperature is taken into account pressure type glass density meter and is placed in the pressure vessel, and tensimeter is installed in the top of container.Constant temperature water bath is used sample constant temperature, makes test findings stable.During measurement, charge into liquefied petroleum gas (LPG) to be measured by inlet valve, along with the increase of vessel internal pressure power, liquefied petroleum gas (LPG) becomes liquid, and along with liquid level is elevated to the basal plane value, the liquefied petroleum gas (LPG) densitometer is by floating.At this moment, close inlet valve, instrument is put into constant temperature water bath carry out constant temperature, after thermal equilibrium, from water-bath, take out instrument, be placed on the stable plane, read density value, temperature value and force value by liquefied petroleum gas (LPG) densitometer, thermometer and tensimeter as early as possible.After having measured,, take out pressure type liquefied petroleum gas (LPG) densitometer and thermometer, clean and dry in order to measuring next time by the vent valve emptying receptacles.As known from the above, now have the following disadvantages with liquefied petroleum gas (LPG) densitometer device: 1. pressure type glass density meter is because of being the band pressure condition in it under non-measurement state, so, if when non-measurement state, explode easily during in temperature, vibration fusion, poor stability, very easily damaged, influence work.2. pressure vessel is made with transparent plastic or glass, under the measurement state, as charges into the air pressure overload, can cause that then pressure vessel bursts, so that cause mishap, hidden danger is bigger.3. read glass density meter meniscus and temperature, force value has inevitable reading error.4. need carry out the capillary correction in application, arithmetic eror and computing complexity are easily introduced in computings such as temperature compensation.5. more because of human factors such as operate miss, reading error and arithmetic erors, so easily cause metering dispute, be difficult to arbitration.
(3) summary of the invention
The objective of the invention is to: design a kind of property simple in structure, easy to use, safe good, do not have parallax, long perfomance life, avoid the digital display type liquefied petroleum gas (LPG) densitometer device of metering dispute.
(4) embodiment
The technical solution adopted in the present invention is: it is by 1. pedestals, 2. sampling inlet, and 3. metal sampling jar, 4. exhaust outlet, 5. pressure probe, 6. temp probe, 7. precise force-measuring sensor, 8. intelligent secondary instrument, liquid level form 9 is formed.Precise force-measuring sensor 7 is loaded in the pedestal 1, the bottom of metal sampling jar 3 places on the precise force-measuring sensor 7, pressure probe 5, temp probe 6 are loaded in the metal sampling jar 3, and pressure probe, temp probe are connected with intelligent secondary instrument 8 by aviation plug with the signal wire of precise force-measuring sensor 7.During measurement the LPG (liquefied petroleum gas) supply source is connected with sampling inlet 2, liquefied petroleum gas (LPG) is filled in the metal sampling jar 3, under its certain pressure and temperature conditions, is that electric signal is sent into secondary instrument by high-accuracy force cell with liquefied petroleum gas (LPG) quality conversion in the jar, because of the jar internal volume certain, so treated, secondary instrument can directly demonstrate density value.
Here: 1. pedestal, metal is made, and is used for installing and the protection force cell.
2. sampling enters the mouth, and it is required to take a sample.
3. the metal sampling jar is to make with stainless steel material, is used to contain the liquefied petroleum gas (LPG) sample, has a liquid level form can observe the liquid level of liquefied petroleum gas (LPG) under certain uniform temperature, pressure in it on the sampling jar.
4. exhaust outlet is needs of getting rid of sample in the metal sampling jar.
5. pressure probe is measured jar need of interior sample strain.
6. temp probe is measured jar need of interior sample temperature.
7. the precise force-measuring sensor is selected resistance-strain type of dynamometer sensor for use, and it is that a change transitions with weight is the device of electric signal.
8. intelligent secondary instrument is the intelligence instrument that adopts microcomputer technology, not only can demonstrate sample force value, temperature value, density value at that time, and by changing the standard density value that can also directly demonstrate (20 ℃, 1 atmospheric pressure) under the standard state.
Accompanying drawing is the overall schematic of digital display type liquefied petroleum gas (LPG) densitometer device of the present invention.
This device is made up of metal sampling jar, support and intelligent secondary meter three parts. 1, metal sampling jar part: be with Temp probe 6 and pressure probe 5 are installed in the metal sampling jar 3, and Signal plug is installed on the sampling jar, have on the sampling jar 3 Sampling entrance 2, air exit 4, liquid level form 9; 2, support part: be that sophisticated sensor 7 is installed in the pedestal 1. The support outer container shields to sensor, and carrier is arranged above the sensor. 3, secondary meter part: turned to by amplifier, A/D The composition such as parallel operation, microprocessor can be realized the processing to pressure, temperature and weight signal, and realizes the pressure under the tested state The direct demonstration of power, temperature, density value and standard density value.
The concrete application is: when zero load sampling jar 3 is placed on the carrier of sensor. Press the zero setting key on the secondary meter, Making density value is 0, subsequently sampling jar is filled sample. When innage reaches predetermined value, stop sampling, after stablizing Force value, temperature value, density value and standard density value one unified the showing in the secondary meter that coexist, do not need thermostatic process.
Claims (1)
1, a kind of digital display type liquefied petroleum gas (LPG) densitometer device is made up of pedestal (1), sampling inlet (2), metal sampling jar (3), exhaust outlet (4), pressure probe (5), temp probe (6), precise force-measuring sensor (7), intelligent secondary instrument (8), liquid level form (9); The precise force-measuring sensor is installed in the pedestal, and sensor has a carrier; The bottom of metal sampling jar places on the sophisticated sensor carrier and measures; Pressure probe, temp probe are installed in the metal sampling jar, and signal is spread out of by connector; The signal wire of temp probe, pressure probe and force cell is connected with intelligent secondary instrument by aviation plug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310115078XA CN1325900C (en) | 2003-11-27 | 2003-11-27 | Digital display type liquefied petroleum gas density meter device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310115078XA CN1325900C (en) | 2003-11-27 | 2003-11-27 | Digital display type liquefied petroleum gas density meter device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1621805A CN1621805A (en) | 2005-06-01 |
| CN1325900C true CN1325900C (en) | 2007-07-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200310115078XA Expired - Fee Related CN1325900C (en) | 2003-11-27 | 2003-11-27 | Digital display type liquefied petroleum gas density meter device |
Country Status (1)
| Country | Link |
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| CN (1) | CN1325900C (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105003258B (en) * | 2015-08-07 | 2017-03-15 | 中国海洋石油总公司 | A kind of acquisition methods of HTHP gas-bearing formation methane stream density matrix parameter |
| CN108240948A (en) * | 2016-12-23 | 2018-07-03 | 中石化石油工程技术服务有限公司 | The double pressure vibration tubular type drilling fluid density on-line measurement instrument of thermostatic type and measuring method |
| CN112460478A (en) * | 2020-11-06 | 2021-03-09 | 中材科技(成都)有限公司 | Measuring device and measuring method for drawing original data of gas cylinder inflation temperature and pressure mass curve |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3661015A (en) * | 1968-12-11 | 1972-05-09 | Transport Petrol Par Pipeline | Densimeter for pipeline-transported liquids |
| US4252097A (en) * | 1978-06-26 | 1981-02-24 | The Bendix Corporation | Viscosity compensated fuel injection system |
| US5315873A (en) * | 1990-02-28 | 1994-05-31 | The Furukawa Electric Co., Ltd. | Liquid level detection apparatus and method thereof |
| CN2325772Y (en) * | 1997-04-25 | 1999-06-23 | 赵万山 | Digital displaying type instrument for investigating density |
| CN1447106A (en) * | 2003-04-21 | 2003-10-08 | 李兴伟 | Online portable multi-functional intellgence fluid density meters |
-
2003
- 2003-11-27 CN CNB200310115078XA patent/CN1325900C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3661015A (en) * | 1968-12-11 | 1972-05-09 | Transport Petrol Par Pipeline | Densimeter for pipeline-transported liquids |
| US4252097A (en) * | 1978-06-26 | 1981-02-24 | The Bendix Corporation | Viscosity compensated fuel injection system |
| US5315873A (en) * | 1990-02-28 | 1994-05-31 | The Furukawa Electric Co., Ltd. | Liquid level detection apparatus and method thereof |
| CN2325772Y (en) * | 1997-04-25 | 1999-06-23 | 赵万山 | Digital displaying type instrument for investigating density |
| CN1447106A (en) * | 2003-04-21 | 2003-10-08 | 李兴伟 | Online portable multi-functional intellgence fluid density meters |
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| Publication number | Publication date |
|---|---|
| CN1621805A (en) | 2005-06-01 |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070711 Termination date: 20091228 |