CN2366831Y - Intelligent and full measuring type volume flow meter for gas - Google Patents
Intelligent and full measuring type volume flow meter for gas Download PDFInfo
- Publication number
- CN2366831Y CN2366831Y CN 99223661 CN99223661U CN2366831Y CN 2366831 Y CN2366831 Y CN 2366831Y CN 99223661 CN99223661 CN 99223661 CN 99223661 U CN99223661 U CN 99223661U CN 2366831 Y CN2366831 Y CN 2366831Y
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- CN
- China
- Prior art keywords
- gas
- utility
- model
- platinum resistance
- data processing
- 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
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Abstract
The utility model relates to a measuring device. The upper end of a casing of the utility model is successively provided with a pressure sensor, a vortex frequency detector, a double-platinum resistor temperature sensor and a platinum resistor air velocity sensor. A data processing and display unit is respectively connected with the pressure sensor, the vortex frequency detector, the double-platinum resistor temperature sensor and the platinum resistor air velocity sensor by signal wires. A special power supply is connected with the data processing and display unit. The utility model has the advantage of simple structure. The utility model realizes full scale range measurement to gas or natural gas, and the full scale range precision is 1 percent.
Description
The utility model relates to a kind of flowmeter, particularly is fit to the measurement instrument as coal gas, rock gas.
At present, be extensive use of vortex shedding flow meter both at home and abroad as the instrument of measuring fluid flow, though it has been to belong to the bigger a kind of flowmeter of range ratio (upper limit of measurable flow amount and the ratio of lower limit), but differ greatly at some peak-to-valley values of measurement, during the flow of comparatively valuable medium, still induced current amount lower limit far can not meet the demands.The vortex shedding flow meter of routine is generally required to manage reynolds number Re d 〉=2 * 10 of interior flow media
4, approximately need flow velocity＞4-5m/s for gas, as the vortex shedding flow meter that is 50mm to a bore, at gas flow less than 30-40m
3During/h, promptly can not accurately measure, and this immeasurable lower limit has been can not be received to the metering of coal gas and gas discharge.
The purpose of this utility model is to provide a kind of coal gas, gas metering is extended to the zero intellectual gamut vortex street gas meter that also can accurately measure to lower limit as far as possible.
In order to achieve the above object, the utility model is to be provided with pressure transducer, vortex generation body, vortex frequency detecting device, two platinum resistance temperature sensors, platinum resistance air velocity transducer from left to right successively in housing upper end, data processing and display unit link to each other with pressure transducer, vortex frequency detecting device, two platinum resistance temperature sensors, platinum resistance air velocity transducers respectively by signal wire, and power source special and data processing and display unit join.
The utility model has the advantages that:
Simple in structure, realized that gamut measures coal gas, rock gas, the gamut precision is 1%.Owing to adopt single-chip microcomputer and power source special, guaranteed the measurement instrument operate as normal, avoid causing traffic loss in 24 hours because of having a power failure, surpass 24 hours situation for having a power failure, vortex street operate as normal 1 month can guarantee that big flow do not lose.
Description of drawings:
Fig. 1 is a synoptic diagram of the present utility model.
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
As shown in Figure 1, the utility model adopts a kind of intellectual gamut gas meter, it is to be provided with pressure transducer 1, vortex generation body 9, vortex frequency detecting device 2, two platinum resistance temperature sensors 3, platinum resistance air velocity transducer 4 from left to right successively in housing 10 upper ends, data processing and display unit 6 link to each other with pressure transducer 1, vortex frequency detecting device 2, two platinum resistance temperature sensors 3, platinum resistance air velocity transducers 4 respectively by signal wire, and power source special 8 joins with data processing and display unit.
Principle of work of the present utility model:
Vortex generation body 9 described in the utility model and vortex sensor constitute vortex shedding flow meter in order to measure the last range section of flow, and sensor 3 and 4 constitutes thermal flowmeter, in order to measure the lower range part of flow.Realized the gamut measurement of flow thus.A platinum resistance in pressure transducer 1 and the temperature sensor 3 is to be used for the whirlpool is used when measured value is revised volume to standard state.The thermal flowmeter that another platinum resistance in the sensor 3 and sensor 4 constitutes is directly measured the volumetric flow rate of the status of criterion.Unit 6 is to be the data processing and the control module of core with the single-chip microcomputer, realizes functions such as data acquisition, conversion, control, computing, demonstration, power down record, serial communication.Unit 8 is power source specials that aim at this flowmeter configuration, and it can guarantee that instrument operate as normal under power-off condition changed power supply vortex shedding flow meter operate as normal 1 month over to after 24 hours.To read by communication port for idle time interval of thermal flowmeter, so that the parameter of estimation when losing the low discharge part (if power failure less than 24 hours, do not influence measurement).
This flowmeter:
1, use vortex shedding flow meter and thermal flowmeter and be combined into the utility model, realize the gamut measurement, the gamut precision is 10%.
2,, can guarantee the operate as normal of measurement instrument, the traffic loss of avoiding causing in 24 hours (have a power failure 24 hours within instrument normally measure) because of having a power failure because the utilization of single-chip microcomputer and power source special.
3, surpass 24 hours situation for having a power failure, the vortex street operate as normal can guarantee that big flow do not lose in 1 month, can't measure because of quitting work of the bigger thermal flowmeter of power consumption for the low discharge part, but can provide idle correct time at interval, for this part flow, administrative authority can estimate to handle (as stopping the supple of gas or steam, also be to use low discharge) as the case may be, and this has just limited artificial possibility of stealing gas.
Claims (1)
1, a kind of intellectual gamut gas meter, the housing that is had ring flange (5) by two ends is formed, it is characterized in that: be provided with pressure transducer (1) from left to right successively in housing (10) upper end, vortex generation body (9), vortex frequency detecting device (2), two platinum resistance temperature sensors (3), platinum resistance air velocity transducer (4), data processing and display unit (6) by signal wire respectively with pressure transducer (1), vortex frequency detecting device (2), two platinum resistance temperature sensors (3), platinum resistance air velocity transducer (4) links to each other, and power source special (8) also joins with data processing and display unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223661 CN2366831Y (en) | 1999-04-28 | 1999-04-28 | Intelligent and full measuring type volume flow meter for gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99223661 CN2366831Y (en) | 1999-04-28 | 1999-04-28 | Intelligent and full measuring type volume flow meter for gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2366831Y true CN2366831Y (en) | 2000-03-01 |
Family
ID=34013855
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99223661 Expired - Lifetime CN2366831Y (en) | 1999-04-28 | 1999-04-28 | Intelligent and full measuring type volume flow meter for gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2366831Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175289A (en) * | 2011-03-10 | 2011-09-07 | 中国农业科学院农田灌溉研究所 | Soil dam seepage monitoring device |
| CN106482779A (en) * | 2016-02-22 | 2017-03-08 | 罗托克执行器有限公司 | A kind of flange integrating device of use sensor acquisition pipeline medium parameter |
| CN112390221A (en) * | 2020-12-14 | 2021-02-23 | 郑州市广正电子有限公司 | Oil gas recovery online detection embedded integrated pressure compensation vortex shedding flowmeter of oiling machine |
-
1999
- 1999-04-28 CN CN 99223661 patent/CN2366831Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102175289A (en) * | 2011-03-10 | 2011-09-07 | 中国农业科学院农田灌溉研究所 | Soil dam seepage monitoring device |
| CN102175289B (en) * | 2011-03-10 | 2012-07-25 | 中国农业科学院农田灌溉研究所 | Soil dam seepage monitoring device |
| CN106482779A (en) * | 2016-02-22 | 2017-03-08 | 罗托克执行器有限公司 | A kind of flange integrating device of use sensor acquisition pipeline medium parameter |
| CN106482779B (en) * | 2016-02-22 | 2019-09-06 | 浙江罗托克执行器股份有限公司 | A kind of flange integrating device using sensor acquisition pipeline medium parameter |
| CN112390221A (en) * | 2020-12-14 | 2021-02-23 | 郑州市广正电子有限公司 | Oil gas recovery online detection embedded integrated pressure compensation vortex shedding flowmeter of oiling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Free format text: NO CO-PATENTEE; FORMER NAME OR ADDRESS: CHEN SHOUREN; LI JIANLI Owner name: SCIENCE & TECHNOLOGY DEVELOPMENT CO., LTD,HARBIN I Free format text: FORMER NAME OR ADDRESS: CHEN HONGPAN |
|
| CP03 | Change of name, title or address |
Address after: 150006, 5 floor, No. 434, postal street, Nangang District, Harbin Patentee after: Science and Technology Development Co., Lt.d, Harbin Polytechnic Univ. Address before: 150001 308 mailbox, Harbin Institute of Technology Co-patentee before: Chen Shouren Patentee before: Chen Hongpan Co-patentee before: Li Jianli |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |