CN207066556U - Low temperature mass flowmenter performance testing device - Google Patents
Low temperature mass flowmenter performance testing device Download PDFInfo
- Publication number
- CN207066556U CN207066556U CN201720988513.7U CN201720988513U CN207066556U CN 207066556 U CN207066556 U CN 207066556U CN 201720988513 U CN201720988513 U CN 201720988513U CN 207066556 U CN207066556 U CN 207066556U
- Authority
- CN
- China
- Prior art keywords
- liquid
- low
- gas
- commutator
- immersed pump
- 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.)
- Active
Links
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
A kind of low temperature mass flowmenter performance testing device is the utility model is related to, mainly solves the problems, such as that security is relatively low in the prior art, the degree of accuracy is relatively low.The utility model is by using a kind of low temperature mass flowmenter performance testing device, including low-temperature storage tank, immersed pump, gas-liquid separator, measured stream gauge, electronic balance, standard scale system, control system, low-temperature storage tank is connected with immersed pump entrance, immersed pump outlet is connected with gas-liquid separator, gas-liquid separator bottom is connected with low-temperature storage tank, mouth is included at the top of gas-liquid separator with measured flux to be connected, the outlet of measured stream gauge is connected with standard scale system, standard scale system is connected with commutator, and commutator is connected with the liquid storage bottle on electronic balance；The technical scheme that control system is connected with measured stream gauge, standard scale system, emperor's balance, immersed pump, commutator preferably solves above mentioned problem, available in low temperature mass flowmenter performance test.
Description
Technical field
It the utility model is related to a kind of low temperature mass flowmenter performance testing device.
Background technology
Coriolis low temperature mass flowmenter is unique measuring equipment in LNG gas stations, the measuring accuracy of the flowmeter
Etc. the fairness that performance directly affects trading, it is therefore necessary to periodically carry out accuracy correction.Detection approach common at present
Mainly there are two kinds：First, directly carry out the accuracy detection of method of standard table, but this method to flowmeter by equipment in gas station
Normal operation and the caused waste of LNG excessively vaporizations at gas station can be influenceed first, additionally there are certain potential safety hazard；The
Two, flowmeter is individually detected by test device, i.e., precision calibration is carried out to flowmeter by method of standard table.Due to
Current and exclusive calibrating specification clearly detects medium, therefore many enterprises are replaced using water gauge, determine cryogenic flow by water gauge
Meter, can only simulate LNG mobility, can not material property and mechanical performance of the detection stream gauge under low temperature, environment with pressure.
At present not for the cryogenic flow meter pertinent literature that standard scale detects under cryogenic media.
Utility model content
Technical problem to be solved in the utility model is the problem of security is relatively low, the degree of accuracy is relatively low in the prior art,
A kind of new low temperature mass flowmenter performance testing device is provided.The device has the advantages of security is higher, the degree of accuracy is higher.
To solve the above problems, the technical solution adopted in the utility model is as follows：A kind of low temperature mass flowmenter performance is surveyed
Trial assembly is put, including low-temperature storage tank, immersed pump, gas-liquid separator, measured stream gauge, electronic balance, standard scale system, control system
System, low-temperature storage tank are connected with immersed pump entrance, and immersed pump outlet is connected with gas-liquid separator, and gas-liquid separator bottom is stored up with low temperature
Tank is connected, and being included in mouth with measured flux at the top of gas-liquid separator is connected, and the outlet of measured stream gauge is connected with standard scale system, standard
Table system is connected with commutator, and commutator is connected with the liquid storage bottle on electronic balance；Control system and measured stream gauge, standard scale
System, emperor's balance, immersed pump, commutator are connected.
In above-mentioned technical proposal, it is preferable that commutator allows hand over the flow direction of liquid nitrogen, commutator one end and gas-liquid separator
Bottom liquid phases pipeline is connected.
In above-mentioned technical proposal, it is preferable that be equipped with least one liquid feed valve before each measured stream gauge pipeline.
In above-mentioned technical proposal, it is preferable that liquid feed valve is provided with before immersed pump entrance.
In above-mentioned technical proposal, it is preferable that the pipeline that the gas-liquid separator bottom returns to low-temperature storage tank is provided with exhaust
Pipeline, exhaust line are provided with diffusion valve and needle valve.
In above-mentioned technical proposal, it is preferable that control system passes through signal wire and measured stream gauge, standard scale system, emperor
Balance, immersed pump, commutator are connected.
The utility model possesses two kinds of method of standard table and mass method to realize under liquid nitrogen environment to the performance detection of flowmeter
Detection method, it is possible to achieve the performance test to different size flowmeter, installed using skid, it is simple and efficient, it is easy to operate, take
Obtained preferable technique effect.
Brief description of the drawings
Fig. 1 is the schematic flow sheet of device described in the utility model.
In Fig. 1,1-low-temperature storage tank；2-return liquid valve A；3-liquid feed valve A；4-immersed pump；5-diffusion valve；6-needle-like
Valve；7-return liquid valve B；8-gas-liquid separator；9-liquid feed valve B；10- measured stream gauge extension bits；11-standard scale system；
12-commutator；13-electronic balance and liquid storage bottle；14-control system；15-measured stream gauge；16-liquid feed valve C.
The utility model is further elaborated below by embodiment, but is not limited only to the present embodiment.
Embodiment
【Embodiment 1】
A kind of low temperature mass flowmenter performance testing device, including low-temperature storage tank, immersed pump, gas-liquid separator, measured stream
Gauge, electronic balance, standard scale system, control system, low-temperature storage tank are connected with immersed pump entrance, immersed pump outlet and gas-liquid point
It is connected from device, gas-liquid separator bottom is connected with low-temperature storage tank, and being included in mouth with measured flux at the top of gas-liquid separator is connected, and is tested
Flowmeter outlet is connected with standard scale system, and standard scale system is connected with commutator, commutator and the liquid storage bottle on electronic balance
It is connected；Control system is connected with measured stream gauge, standard scale system, emperor's balance, immersed pump, commutator.
Capital equipment in standard scale system is measuring accuracy higher quality flowmeter, for demarcating tested mass flow
Count precision.
Commutator allows hand over the flow direction of liquid nitrogen, and commutator one end is connected with gas-liquid separator bottom liquid phases pipeline.
Electronic balance and liquid storage bottle are the capital equipments of mass method, for being weighed to the liquid nitrogen of filling..
At least one liquid feed valve is equipped with before each measured stream gauge pipeline.
Liquid feed valve is provided with before the immersed pump entrance.
The pipeline that the gas-liquid separator bottom returns to low-temperature storage tank is provided with exhaust line, and exhaust line is provided with and diffused
Valve and needle valve.
When carrying out low temperature mass flowmenter performance test, comprise the following steps：
(1) the equipment precooling stage；
Precooling is carried out to immersed pump first, liquid feed valve A and time liquid valve A are opened, and liquid feed valve B is closed, and liquid nitrogen enters immersed pump
Pump pond after, immersed pump low-frequency start, now liquid nitrogen flowed in immersed pump, gas-liquid separator, low-temperature storage tank and related pipeline
Dynamic precooling；Liquid valve A is then shut off back, liquid feed valve B, time liquid valve B and corresponding liquid feed valve C, commutator is opened and switches to back liquid
Pipeline, now liquid nitrogen measured stream gauge, commutator are flowed separately through after gas-liquid separator, finally return in low-temperature storage tank, so as to
Complete the precooling work of method of standard table test line；Pass through the switching of commutator, moreover it is possible to complete to the pre- of the liquid storage bottle of mass method
It is cold；
(2) the performance test stage；
1) method of standard table is tested：Open liquid feed valve A, liquid feed valve B, liquid feed valve C and return liquid valve B, close back liquid valve A, liquid
Nitrogen returns to low-temperature storage tank from after low-temperature storage tank flows through measured stream gauge and standard scale system, then through commutator and time liquid valve B, during which
Flowmeter and the signal of standard scale system have carried out related operation and processing by control system acquisition, so as to realize standard
The performance test of mass flowmenter, wherein measured stream gauge pipeline can be realized to different bores using simultaneously column distribution under table method
The test of flowmeter；
2) mass method is tested：Open liquid feed valve A, liquid feed valve B, liquid feed valve C and return liquid valve B, close back liquid valve A, commutate
Device switches over, and liquid nitrogen flows through measured stream gauge from low-temperature storage tank, and subsequently into liquid storage bottle, electronic balance can be to servicing fluids
Nitrogen is timed, it is quantitative weigh, compared with measured stream gauge, so as to complete the test of mass method；After the completion of weighing, liquid nitrogen exists
Home discharges；Mass method test can also realize the test of tracing to the source to standard scale.
The utility model can be realized under liquid nitrogen environment to the performance detection of flowmeter, possess two kinds of method of standard table and mass method
Detection method, it is possible to achieve the performance test to different size flowmeter, installed using skid, it is simple and efficient, it is easy to operate, take
Obtained preferable technique effect.
Claims (6)
1. a kind of low temperature mass flowmenter performance testing device, it is characterised in that including low-temperature storage tank, immersed pump, gas-liquid separation
Device, measured stream gauge, electronic balance, standard scale system, control system, low-temperature storage tank are connected with immersed pump entrance, and immersed pump goes out
Mouth is connected with gas-liquid separator, and gas-liquid separator bottom is connected with low-temperature storage tank, is included at the top of gas-liquid separator with measured flux
Mouth is connected, and the outlet of measured stream gauge is connected with standard scale system, and standard scale system is connected with commutator, commutator and electronic balance
On liquid storage bottle be connected；Control system is connected with measured stream gauge, standard scale system, emperor's balance, immersed pump, commutator.
2. low temperature mass flowmenter performance testing device according to claim 1, it is characterised in that commutator allows hand over liquid
The flow direction of nitrogen, commutator one end are connected with gas-liquid separator bottom liquid phases pipeline.
3. low temperature mass flowmenter performance testing device according to claim 1, it is characterised in that each measured stream gauge pipe
At least one liquid feed valve is equipped with before line.
4. low temperature mass flowmenter performance testing device according to claim 1, it is characterised in that before the immersed pump entrance
Provided with liquid feed valve.
5. low temperature mass flowmenter performance testing device according to claim 1, it is characterised in that the gas-liquid separator bottom
The pipeline that portion returns to low-temperature storage tank is provided with exhaust line, and exhaust line is provided with diffusion valve and needle valve.
6. low temperature mass flowmenter performance testing device according to claim 1, it is characterised in that control system passes through signal
Line is connected with measured stream gauge, standard scale system, emperor's balance, immersed pump, commutator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988513.7U CN207066556U (en) | 2017-08-09 | 2017-08-09 | Low temperature mass flowmenter performance testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720988513.7U CN207066556U (en) | 2017-08-09 | 2017-08-09 | Low temperature mass flowmenter performance testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207066556U true CN207066556U (en) | 2018-03-02 |
Family
ID=61518961
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720988513.7U Active CN207066556U (en) | 2017-08-09 | 2017-08-09 | Low temperature mass flowmenter performance testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207066556U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108593054A (en) * | 2018-03-21 | 2018-09-28 | 中国科学院理化技术研究所 | A kind of scaling method and device of cryogenic flow meter |
| CN109387265A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Low temperature mass flowmenter performance testing device and method |
-
2017
- 2017-08-09 CN CN201720988513.7U patent/CN207066556U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109387265A (en) * | 2017-08-09 | 2019-02-26 | 中国石油化工股份有限公司 | Low temperature mass flowmenter performance testing device and method |
| CN108593054A (en) * | 2018-03-21 | 2018-09-28 | 中国科学院理化技术研究所 | A kind of scaling method and device of cryogenic flow meter |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104959049B (en) | ultra-pure mixed gas preparation system and method | |
| CN106501155A (en) | Rock core gas liquid two purpose permeability test device and reservoir damage evaluation method | |
| CN104888635A (en) | Device and method for compounding multiple cylinders of mixed gas | |
| RU2008101263A (en) | CARBON GAS FLOW SYSTEM FLOW SYSTEM | |
| CN207066556U (en) | Low temperature mass flowmenter performance testing device | |
| CN202349591U (en) | Calibration device of liquefied natural gas (LNG) dispenser | |
| CN203350242U (en) | Mobile simulative pipeline test platform | |
| CN104132716B (en) | Vehicular Oil Flowmeter Standard Apparatus | |
| CN204165628U (en) | A kind of vehicular Oil Flowmeter Standard Apparatus | |
| KR20040106273A (en) | Movable Watermeter Inspection Equipment | |
| CN206540595U (en) | A kind of online small-bore fluid flowmeter calibration system | |
| CN109387265A (en) | Low temperature mass flowmenter performance testing device and method | |
| CN206192840U (en) | Dual -purpose permeability testing arrangement of rock core gas -liquid | |
| CN201778807U (en) | Movable oil well quality measuring device | |
| CN104089687A (en) | Online calibration device and method for LNG filling machine | |
| CN204405276U (en) | A kind of watertightness performance testing inspection system | |
| CN208566179U (en) | More bottles of charging devices of Standard Gases | |
| CN201032454Y (en) | Gas-liquid dual-phase flow meter | |
| CN206772395U (en) | Standard scale self-check type heavy caliber water flow standard apparatus | |
| CN203274863U (en) | High-pressure natural gas flowmeter calibrating device | |
| CN202720028U (en) | Detecting device for high-pressure water meter | |
| CN206670758U (en) | Static criteria weighing device for fluid media (medium) in high-pressure sealed system | |
| CN211477331U (en) | Automatic calibration device for volume of multi-station three-equal metal measuring device | |
| CN103292878A (en) | Calibrating device for high-pressure natural gas flow meter | |
| CN205261210U (en) | LNG loading sledge integrated device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |