CN204405148U - A kind of float gas meter correcting device - Google Patents
A kind of float gas meter correcting device Download PDFInfo
- Publication number
- CN204405148U CN204405148U CN201420784149.9U CN201420784149U CN204405148U CN 204405148 U CN204405148 U CN 204405148U CN 201420784149 U CN201420784149 U CN 201420784149U CN 204405148 U CN204405148 U CN 204405148U
- Authority
- CN
- China
- Prior art keywords
- air
- efferent duct
- pipeline
- flow efferent
- 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 - Fee Related
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- Details Of Flowmeters (AREA)
Abstract
The utility model relates to a kind of float gas meter correcting device, belong to a kind of instrumentation devices correcting device, comprise compressed air reservoir, proving flowmeter, conflux pipeline, terminal, pressure measurement sensor, sensor for measuring temperature and air-flow efferent duct, detected flowmeter is connected on air-flow efferent duct, and detected flowmeter is connected with proving flowmeter, terminal is by gathering pressure measurement sensor, the data of sensor for measuring temperature calculate the flow of detected flowmeter, then compare with the reading on proving flowmeter, reach alignment purpose.
Description
Technical field
The utility model belongs to a kind of instrumentation devices correcting device, particularly relates to a kind of float gas meter correcting device.
Background technology
Gas float flow meter calibration steps is a lot, the correcting device that general enterprises adopts, the problem that ubiquity calibration accuracy is not high, bell jar, venturi nozzle and piston type correcting device etc. that research institute or professional test satellite location adopt, this kind equipment precision is very high, but it is expensive, and the said equipment in use all needs manually to read flow, temperature, pressure parameter, there is reading lag issues, and, convert to measurement data and need hand computation of tabling look-up, complex operation, efficiency is not high.
Utility model content
For solving the problems of the technologies described above, the utility model provides a kind of float gas meter correcting device.
The utility model is achieved by the following technical programs.
A kind of float gas meter correcting device that the utility model provides; Comprise compressed air reservoir, proving flowmeter, the pipeline that confluxes, terminal, pressure measurement sensor, sensor for measuring temperature device and air-flow efferent duct, wherein compressed air reservoir is connected by pipeline with the pipeline that confluxes, compressed air reservoir and the pipeline of the pipeline that confluxes are provided with proving flowmeter, the pipeline at the left and right two ends of proving flowmeter are separately installed with air inlet adjustment valve and variable valve of giving vent to anger; Conflux on pipeline and be connected with pressure measurement sensor, sensor for measuring temperature device and air-flow efferent duct, the pipeline that confluxes is connected with terminal by circuit with pressure measurement sensor; Collecting pipe is equipped with the air-flow efferent duct of different tube diameters, and respectively valve is housed, tested flowmeter can be connected on a road output port wherein.
Described air-flow efferent duct comprises air-flow efferent duct A, air-flow efferent duct B and air-flow efferent duct C, and the caliber of air-flow efferent duct A, air-flow efferent duct B, air-flow efferent duct C increases successively.
The beneficial effects of the utility model are: adopt float gas meter correcting device, accuracy of detection reaches as high as δ=0.4% ± 0.2%, solve the not enough problem of precision, without straight length requirement, make connecting line simple; And total data adopts computer digit mechanics of communication to realize Quick Acquisition and the data processing work of calibration parameter, solves manual read's logarithmic data lag issues and artificial loaded down with trivial details computational problem.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: 1-compressed air reservoir, 2-air inlet adjustment valve, 3-proving flowmeter, 4-gives vent to anger variable valve, 5-confluxes pipeline, 6-terminal, 7-pressure measurement sensor, 8-sensor for measuring temperature device, 9-air-flow efferent duct A, 10-air-flow efferent duct B, 11-air-flow efferent duct C, 12-is detected flowmeter.
Embodiment
Further describe the technical solution of the utility model below, but described in claimed scope is not limited to.
A kind of float gas meter correcting device as shown in Figure 1; Comprise compressed air reservoir 1, proving flowmeter 3, the pipeline 5 that confluxes, terminal 6, pressure measurement sensor 7, sensor for measuring temperature device 8 and air-flow efferent duct, wherein compressed air reservoir 1 is connected by pipeline with the pipeline 5 that confluxes, compressed air reservoir 1 and the pipeline of the pipeline 5 that confluxes are provided with proving flowmeter 3, the pipeline at the left and right two ends of proving flowmeter 3 are separately installed with air inlet adjustment valve 2 and variable valve 4 of giving vent to anger; Conflux on pipeline 5 and be connected with pressure measurement sensor 7, sensor for measuring temperature device 8 and air-flow efferent duct, the pipeline 5 that confluxes is connected with terminal by circuit with pressure measurement sensor 7; Sensor for measuring temperature device 8 there is valve, for connecting detected flowmeter 12.Described air-flow efferent duct comprises air-flow efferent duct A9, air-flow efferent duct B10 and air-flow efferent duct C11, and the caliber of air-flow efferent duct A9, air-flow efferent duct B10, air-flow efferent duct C11 increases successively.
Make proving flowmeter 3 and detected flowmeter 12 be connected on a pipeline in the said equipment, ensure that the P of proving flowmeter 3 and detected flowmeter 12
m, T
m, ρ
kidentical, proving flowmeter 3 is more accurate with the throughput ratio of detected flowmeter 12.
The utility model additionally provides a kind of calibration steps of float gas meter correcting device simultaneously, and its calibration steps is:
(1) by following Formula Input Technology terminal 6, formula is:
Wherein: q
v-tested flowmeter volumetric flow rate in normal conditions;
Q
nthe scale reading volumetric flow rate unit of-tested flowmeter under actual temperature, pressure, medium state is the same;
P
n, P
m-gas absolute pressure KPa when being respectively scale and the actual alignment of tested flowmeter;
T
n, T
m-aerothermodynami temperature K when being respectively scale and the actual alignment of tested flowmeter;
ρ
n, ρ
k-medium gas density in normal conditions when being respectively scale and the actual alignment of tested flowmeter;
T
kthe temperature parameter of-proving flowmeter volumetric flow rate;
Described standard state refers to 20 DEG C, 101.325KPa;
2 pairs of terminals 6 input q
n, P
n, ρ
n, ρ
k, T
k,
(3) the corresponding caliber of detected flowmeter 12 is arranged on air-flow efferent duct A9, air-flow efferent duct B10 or air-flow efferent duct C11, first open air inlet adjustment valve 2, the variable valve 4 and be provided with the valve of air-flow efferent duct of detected flowmeter 12 of giving vent to anger, other valves of closed gas flow efferent duct, then open compressed air reservoir 1 and carry out work;
(4) adjust the scale of gas variable valve 4 to calibrated flowmeter, make float be stabilized in calibrated scale, terminal 6 gathers the P that pressure measurement sensor 7 and sensor for measuring temperature device 8 detect
m, T
m, then terminal 6 calculates the q of detected flowmeter 12 automatically
v, then this numerical value compares with the scale of proving flowmeter 3, obtains alignment purpose.
Claims (2)
1. a float gas meter correcting device, it is characterized in that: comprise compressed air reservoir (1), proving flowmeter (3), conflux pipeline (5), terminal (6), pressure measurement sensor (7), sensor for measuring temperature device (8) and air-flow efferent duct, wherein compressed air reservoir (1) is connected by pipeline with the pipeline that confluxes (5), compressed air reservoir (1) and the pipeline of pipeline (5) of confluxing are provided with proving flowmeter (3), a left side for proving flowmeter (3), the pipeline at right two ends is separately installed with air inlet adjustment valve (2) and variable valve of giving vent to anger (4), conflux on pipeline (5) and be connected with pressure measurement sensor (7), sensor for measuring temperature device (8) and air-flow efferent duct, conflux the pressure measurement sensor (7) of pipeline (5), and temperature sensor (8) is connected with terminal by circuit, collecting pipe (5) is equipped with the air-flow efferent duct of different tube diameters, and respectively valve is housed, tested flowmeter (12) can be connected on a road output port wherein.
2. float gas meter correcting device as claimed in claim 1, it is characterized in that: described air-flow efferent duct comprises air-flow efferent duct A (9), air-flow efferent duct B (10) and air-flow efferent duct C (11), the caliber of air-flow efferent duct A (9), air-flow efferent duct B (10), air-flow efferent duct C (11) increases successively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784149.9U CN204405148U (en) | 2014-12-12 | 2014-12-12 | A kind of float gas meter correcting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420784149.9U CN204405148U (en) | 2014-12-12 | 2014-12-12 | A kind of float gas meter correcting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204405148U true CN204405148U (en) | 2015-06-17 |
Family
ID=53428999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420784149.9U Expired - Fee Related CN204405148U (en) | 2014-12-12 | 2014-12-12 | A kind of float gas meter correcting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204405148U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457919A (en) * | 2014-12-12 | 2015-03-25 | 贵州黎阳航空动力有限公司 | Calibration device and method for floater gas flowmeter |
-
2014
- 2014-12-12 CN CN201420784149.9U patent/CN204405148U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104457919A (en) * | 2014-12-12 | 2015-03-25 | 贵州黎阳航空动力有限公司 | Calibration device and method for floater gas flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 550014 No. 1111 Liyang Road, Baiyun District, Guiyang City, Guizhou Province Patentee after: Chinese Hangfa Guizhou Liyang aero Power Co. Ltd. Address before: 561102 Science and Technology Management Department of Pingba County, Anshun City, Guizhou Province Patentee before: Guizhou Liyang Aerospace Power Co., Ltd. |
|
| CP03 | Change of name, title or address | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150617 Termination date: 20201212 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |