CN2558841Y - Liquefied petroleum gas filling machine - Google Patents
Liquefied petroleum gas filling machine Download PDFInfo
- Publication number
- CN2558841Y CN2558841Y CN 02243343 CN02243343U CN2558841Y CN 2558841 Y CN2558841 Y CN 2558841Y CN 02243343 CN02243343 CN 02243343 CN 02243343 U CN02243343 U CN 02243343U CN 2558841 Y CN2558841 Y CN 2558841Y
- Authority
- CN
- China
- Prior art keywords
- gas
- valve
- liquid
- return
- flowmeter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model pertains to the liquid measurement technical field, which relates to modification of a gas dispenser of liquefied petroleum gas. The utility model consists of a machine cabinet 1, a microcomputer controller 8, a filter 7, a gas-liquid separator 6, a check valve 5, a flow meter 3, an overflow valve 4, a pressure gauge 2, a differential pressure controlling valve 9, a magnetic valve 10, an air-return component 11, a gas filling gun 12 and a pull-away safety valve 13, and is characterized in that the flow meter adopts the quality flow meter. The utility model has correct measurement, no abrasion, small pressure loss and long service life.
Description
Affiliated technical field.The utility model belongs to the liquid meter technical field, relates to the improvement to liquefied petroleum gas dispenser.
Background technique.No matter present domestic employed liquefied petroleum gas dispenser be homemade or import, all adopts the addition of positive displacement flowmeter metering liquid.Its shortcoming is: the first, the measured result of positive displacement flowmeter is the apparent volume of liquefied petroleum gas (LPG), i.e. volume under the prevailing circumstances.Yet because temperature is very big to the density influence of liquefied petroleum gas (LPG), the liquefied petroleum gas (LPG) of same quality has different volumes under different temperatures.So the standard code of China, liquefied petroleum gas (LPG) should be sold according to the volume under 15 ℃ " liter ", and promptly filling machine must show the volume under 15 ℃, and this just needs the filling machine metering after conversion just can show.The second, the piston of positive displacement flowmeter in a period of rotation flow and the angle of swing of output be non-linear, promptly be not directly proportional.So positive displacement flowmeter must have a minimum to add tolerance, is lower than this value, the accuracy of measuring just can not get guaranteeing.Three, positive displacement flowmeter has mechanical rotation when metering, have the wearing and tearing and the bigger pressure loss, so error in dipping is big, and the life-span is short.
Content of the present utility model.
Technical problem to be solved in the utility model is: the liquefied petroleum gas dispenser that at the shortcoming of the filling machine of existing employing positive displacement flowmeter, provide a kind of accurate measurement, do not have wearing and tearing, the pressure loss is little, the life-span is long.
The technical solution of the utility model is: a kind of liquefied petroleum gas dispenser, by rack 1, computer controller 8, liquid-filter 7, gas-liquid separator 6, one-way valve 5, flowmeter 3, relief valve 4, pressure gauge 2, differential pressure control valve 9, solenoid valve 10, return-air assembly 11, air filling gun 12 and draw back safety valve 13 and form, liquid-filter 7, gas-liquid separator 6, one-way valve 5, flowmeter 3, differential pressure control valve 9, solenoid valve 10, air filling gun 12 is connected mutually by pipeline, the input end of liquid-filter 7 links to each other with liquid entering hole, one end of relief valve 4 is through threeway and the pipeline connection that is connected one-way valve 5 and flowmeter 3, its the other end is communicated with gas-liquid separator 6, pressure gauge 2 is through the pipeline connection of threeway and connection traffic meter 3 and differential pressure control valve 9, the gas phase port of return-air assembly 11 is communicated with the gas phase port of differential pressure control valve 9, the gas phase port of return-air assembly 11 is through threeway and the pipeline connection that is connected relief valve 4 and gas-liquid separator 6, the return-air port of return-air assembly 11 connects liquid return hole, it is characterized in that said flowmeter adopts mass flowmenter.
The utility model has the advantages that: accurate measurement, there are not wearing and tearing, the pressure loss is little, and the life-span is long.What the utility model adopted is mass flowmenter, mass flowmenter is being compared tangible advantage with positive displacement flowmeter, mass flowmenter does not have machinery action in the course of the work, thereby compare with positive displacement flowmeter, it does not have wearing and tearing, the pressure loss is little, the life-span is long, error in dipping is little, its work is not subjected to internal flow Media density and viscosity influence, has temperature self-compensation function, and can be at any time provides the parameter such as pressure, density, temperature, flow velocity of liquefied petroleum gas (LPG) to the user.In addition, positive displacement flowmeter piston angle of swing of flow and output in a period of rotation is non-linear, promptly is not directly proportional.So positive displacement flowmeter must have a minimum to add tolerance, is lower than this value, the accuracy of measuring just can not get guaranteeing.Mass flowmenter is quite different, theoretically, no matter aerating how much, does not influence the accuracy of measuring, so the performance of the performance specific volume formula flowmeter of mass flowmenter is much higher.
In addition, aspect temperature correction, mass flowmenter is compared with positive displacement flowmeter also tangible advantage, it has directly measured the quality of liquefied petroleum gas (LPG), density during divided by 15 ℃, just can demonstrate 15 ℃ volume very easily, and for positive displacement flowmeter, what it was measured is the apparent volume of liquefied petroleum gas (LPG), at first must measure the temperature of liquefied petroleum gas (LPG), the proportioning of propane and butane just can be calculated quality, the density during divided by 15 ℃ then in the input liquefied petroleum gas (LPG), just can draw at last 15 ℃ volume, thereby filling machine adopts mass flowmenter to compare with adopting positive displacement flowmeter, and it is high a lot of that the accuracy of measuring is wanted.
Embodiment.
Description of drawings.
Fig. 1 is a structural principle block diagram of the present utility model.
Below the utility model is described in further details.Referring to Fig. 1, this is the theory structure schematic representation of liquefied petroleum gas dispenser.Theory structure of the present utility model is identical with existing filling machine.Filling machine is by rack 1, computer controller 8, liquid-filter 7, gas-liquid separator 6, one-way valve 5, flowmeter 3, relief valve 4, pressure gauge 2, differential pressure control valve 9, solenoid valve 10, return-air assembly 11, air filling gun 12 and draw back safety valve 13 and form, liquid-filter 7, gas-liquid separator 6, one-way valve 5, flowmeter 3, differential pressure control valve 9, solenoid valve 10, air filling gun 12 are connected mutually by pipeline, and the input end of liquid-filter 7 links to each other with liquid entering hole.One end of relief valve 4 is through threeway and the pipeline connection that is connected one-way valve 5 and flowmeter 3, and its other end is communicated with gas-liquid separator 6.Pressure gauge 2 is through the pipeline connection of threeway and connection traffic meter 3 and differential pressure control valve 9.The gas phase port of return-air assembly 11 is communicated with the gas phase port of differential pressure control valve 9, and the gas phase port of return-air assembly 11 is through threeway and the pipeline connection that is connected relief valve 4 and gas-liquid separator 6, and the return-air port of return-air assembly 11 connects liquid return hole.Improvement of the present utility model is that said flowmeter adopts mass flowmenter.The products such as Leqing board that the ENDRESS+HAUSER board that the Danfoss board that the mass flow rate that can adopt is produced in respect of Denmark, Switzerland produce (being called for short the E+H board), Rosemount board produced in USA and China Zhejiang produce.Working principle of the present utility model as shown in drawings, the high-pressure liquefaction petroleum gas of the suction booster output from gas station at first enters liquid-filter 7 by liquid entering hole, contaminant filter in the liquefied petroleum gas (LPG) is fallen, enter gas-liquid separator 6 then, the gas of separating from liquefied petroleum gas (LPG) turns back in the gas holder of gas station by return-air assembly 11.The liquefied petroleum gas (LPG) that does not contain gas is left gas-liquid separator 6 and is entered one-way valve 5, and after one-way valve 5, pipeline is divided into two-way, for the safety of protective system, avoids pressure too high, leads up to relief valve 4, return-air assembly 11 to get back in the gas holder of gas station; One the road flows to flowmeter 3.Liquefied petroleum gas (LPG) enters differential pressure control valve 9 after by flowmeter 3.The function of differential pressure control valve 9 has two, and one is to keep existing with liquid form by the liquefied petroleum gas (LPG) of flowmeter 3, must not gasify; Another is to cut off pipeline when filling machine quits work or have a power failure.Behind differential pressure control valve 9, liquefied petroleum gas (LPG) by normally closed solenoid valve 10, draw back safety valve 13, air filling gun 12 is filled in the gas tank of automobile.
Claims (1)
1, a kind of liquefied petroleum gas dispenser, by rack [1], computer controller [8], liquid-filter [7], gas-liquid separator [6], one-way valve [5], flowmeter [3], relief valve [4], pressure gauge [2], differential pressure control valve [9], solenoid valve [10], return-air assembly [11], air filling gun [12] and draw back safety valve [13] and form, liquid-filter [7], gas-liquid separator [6], one-way valve [5], flowmeter [3], differential pressure control valve [9], solenoid valve [10], air filling gun [12] is connected mutually by pipeline, the input end of liquid-filter [7] links to each other with liquid entering hole, one end of relief valve [4] is through threeway and the pipeline connection that is connected one-way valve [5] and flowmeter [3], its the other end is communicated with gas-liquid separator [6], pressure gauge [2] is through the pipeline connection of threeway and connection traffic meter [3] and differential pressure control valve [9], the gas phase port of return-air assembly [11] is communicated with the gas phase port of differential pressure control valve [9], the gas phase port of return-air assembly [11] is through threeway and the pipeline connection that is connected relief valve [4] and gas-liquid separator [6], the return-air port of return-air assembly [11] connects liquid return hole, it is characterized in that said flowmeter adopts mass flowmenter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243343 CN2558841Y (en) | 2002-07-24 | 2002-07-24 | Liquefied petroleum gas filling machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02243343 CN2558841Y (en) | 2002-07-24 | 2002-07-24 | Liquefied petroleum gas filling machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2558841Y true CN2558841Y (en) | 2003-07-02 |
Family
ID=33715622
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02243343 Expired - Lifetime CN2558841Y (en) | 2002-07-24 | 2002-07-24 | Liquefied petroleum gas filling machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2558841Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101113974B (en) * | 2007-09-04 | 2011-04-06 | 上海吴泾化工有限公司 | Liquid phase medium preprocess device of on-line chromatographic study and using method, and used thereof |
| CN101058400B (en) * | 2006-04-21 | 2011-11-23 | 中国国际海运集装箱(集团)股份有限公司 | Liquefied natural gas aerating machine and aerating method |
| CN101761773B (en) * | 2010-01-08 | 2012-08-22 | 张家港富瑞特种装备股份有限公司 | Liquefied natural gas dispenser |
| CN104373808A (en) * | 2014-11-19 | 2015-02-25 | 江阴市富仁高科股份有限公司 | Integrated union pay type liquefied petroleum gas dispenser and payment method thereof |
| CN104390078A (en) * | 2014-11-04 | 2015-03-04 | 无锡市华明化工有限公司 | Gas conveying hose in chemical industry |
| CN108758329A (en) * | 2018-06-19 | 2018-11-06 | 沈阳科汇生产力促进中心有限公司 | Filling machine, aerating statistical method, tax control filling machine and aerating tax control method |
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
-
2002
- 2002-07-24 CN CN 02243343 patent/CN2558841Y/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101058400B (en) * | 2006-04-21 | 2011-11-23 | 中国国际海运集装箱(集团)股份有限公司 | Liquefied natural gas aerating machine and aerating method |
| CN101113974B (en) * | 2007-09-04 | 2011-04-06 | 上海吴泾化工有限公司 | Liquid phase medium preprocess device of on-line chromatographic study and using method, and used thereof |
| CN101761773B (en) * | 2010-01-08 | 2012-08-22 | 张家港富瑞特种装备股份有限公司 | Liquefied natural gas dispenser |
| CN104390078A (en) * | 2014-11-04 | 2015-03-04 | 无锡市华明化工有限公司 | Gas conveying hose in chemical industry |
| CN104373808A (en) * | 2014-11-19 | 2015-02-25 | 江阴市富仁高科股份有限公司 | Integrated union pay type liquefied petroleum gas dispenser and payment method thereof |
| CN108758329A (en) * | 2018-06-19 | 2018-11-06 | 沈阳科汇生产力促进中心有限公司 | Filling machine, aerating statistical method, tax control filling machine and aerating tax control method |
| CN110107800A (en) * | 2019-05-22 | 2019-08-09 | 张家港中集圣达因低温装备有限公司 | LNG liquid addition machine |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US8122918B2 (en) | Pressure differential system for controlling high pressure refill gas flow into on board vehicle fuel tanks | |
| CN201413278Y (en) | Pipeline pressure testing device | |
| CN2558841Y (en) | Liquefied petroleum gas filling machine | |
| CN204491022U (en) | Electroplate liquid adds Controlling System automatically | |
| CN201666803U (en) | Marine main engine fuel-oil consumption real-time measuring and analyzing device | |
| CN106123984A (en) | Hydrogen Fuel-cell Vehicles hydrogen-consuming volume real-time displaying device and detection method thereof | |
| CN205047214U (en) | Oil well liquid measure automatic measurement analytical equipment | |
| CN204512945U (en) | A kind of LNG vaporizing station | |
| CN201443388U (en) | Device for continuously and automatically metering output of oil well | |
| CN2826369Y (en) | Volume pipe type multi-phase flowmeter | |
| CN203257407U (en) | Oil well mouth metering device | |
| CN103791979B (en) | High-precision fuel tank fuel quantity measuring device | |
| CN203606014U (en) | Weighing-type liquid on-line metering system | |
| CN201935707U (en) | Differential pressure type natural gas flow metering device with constant value pore plate | |
| CN203957893U (en) | Heavy motor vehicle LNG fuel surplus detects and read out instrument | |
| CN206919949U (en) | A kind of oil-feed stable-pressure device in the measurement applied to engine consumption | |
| CN202066544U (en) | Fuel consumption detector for diesel engines | |
| CN203412735U (en) | Novel testing device of ESP/ABS (electronic stability program)/(anti-locked braking system) pump | |
| CN203849234U (en) | Adsorption and desorption testing equipment of carbon tank | |
| CN209161470U (en) | Urea for vehicle charging machine | |
| CN203323804U (en) | Vehicle fuel oil adding amount measurement device | |
| CN201094060Y (en) | Car engine fuel oil metering mechanism | |
| CN201688874U (en) | Oil well gas and liquid two-phase flow online monitoring device | |
| CN207231881U (en) | A kind of efficient defoaming device of fluid on-line monitoring | |
| CN202158893U (en) | Tar flow control device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20120724 Granted publication date: 20030702 |