CN104501917B - Super large caliber sonic nozzle group formula gas flowmeter calibrating installation - Google Patents
Super large caliber sonic nozzle group formula gas flowmeter calibrating installation Download PDFInfo
- Publication number
- CN104501917B CN104501917B CN201510001542.5A CN201510001542A CN104501917B CN 104501917 B CN104501917 B CN 104501917B CN 201510001542 A CN201510001542 A CN 201510001542A CN 104501917 B CN104501917 B CN 104501917B
- Authority
- CN
- China
- Prior art keywords
- gas
- sonic nozzle
- header
- super large
- shaped header
- 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
- 238000009434 installation Methods 0.000 title claims description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 230000003584 silencer Effects 0.000 claims description 3
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 description 73
- 230000000694 effects Effects 0.000 description 3
- 239000003345 natural gas Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003800 Pharynx Anatomy 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000014171 carbonated beverage Nutrition 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007323 disproportionation reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009114 investigational therapy Methods 0.000 description 1
- 239000003949 liquefied natural gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000087 stabilizing Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Abstract
The invention discloses a kind of super large caliber sonic nozzle group formula gas flowmeter calibrating installations.It includes positioned at the gas flow calibrating part of ground and gas discharge section located underground point；Gas flow calibrating part includes U-shaped header, and U-shaped header is divided into front and back two sections, detection pipeline is connected on leading portion U-shaped header, sonic nozzle is connected on back segment U-shaped header；Underground gas flow discharge part includes No.1 gas vacuum tank, and there are No.1 gas vacuum tank multiple outlets, each outlet to be connected on circulating exhaust selector channel, and circulating exhaust selector channel has water passing away and gas outlet channels；Each sonic nozzle is all connected on a No.1 jet expansion header, and jet expansion header is connected on No.1 gas vacuum tank.It the advantage is that：Space is set to have obtained effective utilization；The noise content for reducing aerial part space, improves working environment；Energy consumption is greatly reduced, verification result is accurate.
Description
Technical field
The present invention relates to a kind of gas flowmeter calibrating installations, especially a kind of to be suitable for the calibrating of all kinds of heavy caliber flowing meters
Super large caliber sonic nozzle group formula gas flowmeter calibrating installation.
Background technology
Existing calibrating installation typically examines and determine the smaller gas flowmeter of bore, with China " West-east Gas,
The implementation and construction of a plurality of trans-regional, the transnational natural gas transmission main line such as " Russia's gas is gone down south " and " liquefied natural gas disembarkation ",
City gas enters high-speed development period, and more and more super large caliber gas flow instrument are applied on natural-gas transfer pipeline；
The bore of natural-gas transfer pipeline is very big, and the influence of the accuracy of gas flowmeter to testing result is very big, small-bore gas
Flowmeter body is inconvenient for use, and energy consumption waste is relatively more, and it is long that the calibrating of heavy caliber gas flowmeter starts the time so that traditional osculum
Diameter gas flowmeter does not adapt to the use needs of heavy caliber gas flowmeter.
In the prior art because the features such as sonic nozzle accuracy is high, reproducible, reliable and stable is often selected as standard
Table possesses gas flow meters of the set using sonic nozzle as standard scale up to a hundred according to the investigation country, on mounting means not about
And with selected large space formula；It is installed using large space formula, nozzle installation is not in place to cause air-flow unstable, and small flow item
Temperature distributing disproportionation under part can cause verification result inaccurate.
Invention content
That the technical problem to be solved in the present invention is to provide a kind of structure settings is reasonable, easy to use, verification result is accurate
Super large caliber sonic nozzle group formula gas flowmeter calibrating installation.
In order to solve the above-mentioned technical problem, super large caliber sonic nozzle group formula gas flowmeter calibrating installation of the invention,
Include positioned at the gas flow calibrating part of ground and gas discharge section located underground point；Gas flow calibrating part includes U
Shape header, U-shaped header are divided into front and back two sections by middle section, the different detection pipe of a plurality of bore are connected on leading portion U-shaped header
Line is connected with multiple sonic nozzles for examining and determine different flow value on back segment U-shaped header；Underground gas flow discharge unit subpackage
Include No.1 gas vacuum tank, No.1 gas vacuum tank has multiple outlets, each outlet respectively by No.1 water ring vacuum pump and
No.1 steam-water separator is connected on circulating exhaust selector channel, and circulating exhaust selector channel has the water discharge for draining logical
Road and gas outlet channels for exhaust；Each sonic nozzle is all connected on a No.1 jet expansion header, and nozzle goes out
Mouth header is connected on No.1 gas vacuum tank.
The sonic nozzle includes small-sized sonic nozzle, medium-sized sonic nozzle and large-scale sonic nozzle, the gas of the underground
Body discharge part is additionally provided with a No. two gas vacuum tanks, and the small-sized sonic nozzle, medium-sized sonic nozzle also pass through one
No. two jet expansion headers are connected on No. two gas vacuum tanks, and No. two gas vacuum tanks are connected by No. two water ring vacuum pumps
It is connected on circulating exhaust selector channel.
The gas outlet channels have two, wherein a gas outlet channels part located underground, an other gas
Body passing away leads to aerial part.
The front end of every detection pipeline is respectively connected with intake silencer.
The middle section of the U-shaped header is provided with shut-off valve, is connected with standard scale between front and back two sections of U-shaped headers
Central line；Central outlet header is connected between the back segment U-shaped header and No.1 jet expansion header.
The advantage of the invention is that：
1, due to being provided with U-shaped header, header volume is reduced, header the space occupied is greatly reduced, space is made to obtain
Effective utilization is arrived；
2, the gas flowmeter calibrating installation is divided into positioned at the gas flow calibrating part of ground and gas located underground
Flow discharge part；On the one hand, due to power plant（Water ring vacuum pump）Operating noise is bigger, and power plant is arranged on ground
Under, reduce the noise content in aerial part space, improves working environment；Still further aspect reduces the installation knot of aerial part
Structure has saved space；
3, sonic nozzle is divided into small-sized sonic nozzle, medium-sized sonic nozzle and large-scale sonic nozzle,
Small-sized sonic nozzle, medium-sized sonic nozzle are also connected with independent jet expansion header and independent gas vacuum tank,
The detection of itself and large-scale sonic nozzle is distinguished, thus can be selected according to specific detection flows size different sonic nozzles and
Gas vacuum tank, greatly reduces energy consumption；
4, since under different temperatures, gas volume variation is bigger, temperature is different, be easy to cause measurement error, especially
Large space is detected, in order to ensure accuracy in detection when detection, needs to ensure relative constant temperature, by gas outlet channels
Two are set as, can select gas being discharged to ground or underground according to specific detection environmental selection, thereby ensure that flow standard
Exactness；
5, it is provided with shut-off valve between the upper flat segments of two sections of U-shaped header, the central tube with standard scale is connected between two sections
The standard scale of line, setting plays the role of given standard value, and standard scale is combined with nozzle ingehious design, and standard scale is directly sharp at any time
It is examined and determine with sonic nozzle, for the occasion that accuracy of detection is of less demanding, sonic nozzle is closed to be detected by standard scale, into one
Step reduces energy consumption；
6, its overall construction design is reasonable, passes through multiple sonic nozzle comprehensive detections and root for examining and determine different flow value
The selection in channel is exhausted according to real time status so that verification result is accurate.
Description of the drawings
Fig. 1 is the structural schematic diagram of super large caliber sonic nozzle group formula gas flowmeter calibrating installation of the present invention.
Specific implementation mode
With reference to the accompanying drawings and detailed description, the super large caliber sonic nozzle group formula gas flowmeter of the present invention is examined
Determine device to be described in further detail.
As shown, the super large caliber sonic nozzle group formula gas flowmeter calibrating installation of the present invention, including be located on the ground
Gas flow calibrating part and gas discharge section located underground point；Gas flow calibrating part includes U-shaped header 1, and U-shaped converges
There is pipe 1 two sections of parallel-segments and one section of linkage section being connected between parallel-segment, U-shaped header 1 to be divided by the middle section of linkage section
It is front and back two sections, the different detection pipeline 2 of a plurality of bore is connected on leading portion U-shaped header, is mounted on every detection pipeline 2
Tong-test ammeter platform position 3, tong-test ammeter platform position 3 are detected, every detection pipe for installing measured stream gauge for the flowmeter of different bores
Line 2 is connected to by bellows 18 on leading portion U-shaped header, and the front end of every detection pipeline 2 is respectively connected with intake silencer 15；
Multiple sonic nozzles for examining and determine different flow value are connected on back segment U-shaped header；Underground gas flow discharge part includes
No.1 gas vacuum tank 5（High-power gas vacuum tank）, No.1 gas vacuum tank 5 is with multiple export pipelines, every outlet
Road is respectively arranged with No.1 water ring vacuum pump 6 and steam-water separator 7, passes through No.1 Water-ring vacuum respectively on every export pipeline
Pump（High-power water ring vacuum pump）6 and No.1 steam-water separator 7 be connected on circulating exhaust selector channel 8, circulating exhaust selection
Channel 8 has the gas outlet channels 10 for the water passing away 9 of draining and for exhaust, described gas outlet channels 10
With two, wherein a gas outlet channels part located underground, in addition a gas outlet channels lead to aerial part；Respectively
A sonic nozzle 4 is all connected on a No.1 jet expansion header 11, and jet expansion header 11 is connected to No.1 gas voltage stabilizing
On tank 5.
Further, sonic nozzle described in the present invention includes small-sized sonic nozzle 4, medium-sized sonic nozzle 12 and large size
Sonic nozzle 13, the gas discharge section of underground point are additionally provided with a No. two gas vacuum tanks 14, small-sized sonic nozzle 4, medium-sized
Sonic nozzle 12 is also connected to No. two gas vacuum tanks by a No. two jet expansion headers 15（Small-power gas vacuum tank）
On 14, No. two gas vacuum tanks 14 pass through No. two water ring vacuum pumps（Small-power water ring vacuum pump）19 and No. two steam-water separators 20
It is connected on circulating exhaust selector channel 8, wherein No. two gas vacuum tanks have an a plurality of export pipeline, on every export pipeline
No. two water ring vacuum pumps 19 are mounted on, each export pipeline of No. two gas vacuum tanks is pooled to No. two carbonated drinks
Separator 20.
Still further, the middle section of described 1 linkage section of U-shaped header is provided with shut-off valve 16, front and back two sections of U-shapeds converge
Central line 18 of the connection with standard scale 17 between pipe 1；In being connected between back segment U-shaped header and No.1 jet expansion header 11
The heart exports header 21, and when needing to detect using standard scale 17, all sonic nozzles are closed, and shut-off valve 16 is closed, in power
Device effect under, air flow through muffler, detection pipeline, checklist, the U-shaped header of leading portion, central line 18, the U-shaped header of back segment,
Central outlet header 21, No.1 jet expansion header, No.1 gas vacuum tank are most discharged through No.1 water ring vacuum pump afterwards；Wherein,
The standard scale of setting also acts as the effect of given standard value, and standard scale is combined with nozzle ingehious design, and standard scale is directly sharp at any time
It is examined and determine with sonic nozzle, for the occasion that accuracy of detection is of less demanding, sonic nozzle is closed to be detected by standard scale, into one
Step reduces energy consumption.
Its operation principle is as follows：
As shown in Figure 1, the super large caliber sonic nozzle group formula gas flowmeter calibrating installation of the present invention, when work, dynamic
Under power apparatus effect, air flows through muffler, detection pipeline, checklist, U-shaped header, sonic nozzle, and No.1 jet expansion converges
Pipe, No.1 gas vacuum tank are most discharged through No.1 water ring vacuum pump afterwards；It is discharged in gas to circulating exhaust selector channel 8, then
Selection gas outlet channels as needed；According to the size of calibrating flow value, different model can also be selected according to actual needs
Sonic nozzle combines, and sets up required calibrating flow point；The raising of calibrating accuracy is further realized, meanwhile, in the present invention also
With an auxiliary line,
This circuit is that small-sized sonic nozzle 4, medium-sized sonic nozzle 12 are connected by a No. two jet expansion header 15
To No. two gas vacuum tanks（Small-power gas vacuum tank）On 14, No. two gas vacuum tanks 14 pass through No. two water ring vacuum pumps（It is small
Power water ring vacuum pump）19 and No. two steam-water separators 20 be connected on circulating exhaust selector channel 8, from there through this circuit
It is set to examine and determine accuracy higher, by the above-mentioned course of work as it can be seen that the present invention can guarantee the gas into device by power plant
Body mobile phase is to stablizing and forming critical stream mode in sonic nozzle throat；Under stable operating mode, flow through sonic nozzle and by
The gas mass flow of inspection table is identical；In verification process, the stream pressure before industrial computer system acquisition and processing nozzle
And temperature, calculate the gas mean mass flux or integrated flux of standard, and press related vertification regulation, by it with collect
The indicated value of checklist be compared and calculate, you can obtain checklist the elementary error of the flow point and repeatability accidentally
Difference is calculated by calculation procedure to realize the calibrating to gas flow instrument, shows and export verification result, and beat automatically
It prints off and.
Claims (4)
1. a kind of super large caliber sonic nozzle group formula gas flowmeter calibrating installation, it is characterised in that：Include the gas positioned at ground
Body flow verification part and gas discharge section located underground point；Gas flow calibrating part includes U-shaped header（1）, U-shaped
Header（1）It is divided into front and back two sections by middle section, the different detection pipeline of a plurality of bore is connected on leading portion U-shaped header（2）, often
Item detects pipeline（2）On be mounted on tong-test ammeter platform position（3）, it is connected on back segment U-shaped header multiple for examining and determine different flow value
Sonic nozzle；The underground gas flow discharge part includes No.1 gas vacuum tank（5）, the No.1 gas vacuum tank
（5）With multiple outlets, each outlet passes through No.1 water ring vacuum pump respectively（6）With No.1 steam-water separator（7）It is connected to and follows
Ring is vented selector channel（8）On, the circulating exhaust selector channel（8）With the water passing away for draining（9）With for
The gas outlet channels of exhaust（10）；Each sonic nozzle（4）It is all connected to a No.1 jet expansion header（11）On,
The jet expansion header（11）It is connected to No.1 gas vacuum tank（5）On, the gas outlet channels（10）With two,
In a gas outlet channels part located underground, in addition a gas outlet channels lead to aerial part.
2. super large caliber sonic nozzle group formula gas flowmeter calibrating installation described in accordance with the claim 1, it is characterised in that：Institute
It includes small-sized sonic nozzle to state sonic nozzle（4）, medium-sized sonic nozzle（12）With large-scale sonic nozzle（13）, the gas of the underground
Body discharge part is additionally provided with a No. two gas vacuum tanks（14）, the small-sized sonic nozzle（4）, medium-sized sonic nozzle（12）
Also pass through a No. two jet expansion headers（15）It is connected to No. two gas vacuum tanks（14）On, No. two gas vacuum tanks
（14）It is connected to circulating exhaust selector channel by No. two water ring vacuum pumps（8）On.
3. super large caliber sonic nozzle group formula gas flowmeter calibrating installation described in accordance with the claim 1, it is characterised in that：Institute
State every detection pipeline（2）Front end be respectively connected with intake silencer（15）.
4. super large caliber sonic nozzle group formula gas flowmeter calibrating installation described in accordance with the claim 1, it is characterised in that：Institute
State U-shaped header（1）Middle section be provided with shut-off valve（16）, front and back two sections of U-shaped headers（1）Between connection have standard scale
（17）Central line（18）；The back segment U-shaped header and No.1 jet expansion header（11）Between connect central outlet header
（21）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001542.5A CN104501917B (en) | 2015-01-04 | 2015-01-04 | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510001542.5A CN104501917B (en) | 2015-01-04 | 2015-01-04 | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104501917A CN104501917A (en) | 2015-04-08 |
| CN104501917B true CN104501917B (en) | 2018-09-18 |
Family
ID=52943340
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510001542.5A Active CN104501917B (en) | 2015-01-04 | 2015-01-04 | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104501917B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107677342A (en) * | 2016-08-01 | 2018-02-09 | 中国石油化工股份有限公司 | Natural gas flowmeter verification system |
| US11326921B2 (en) * | 2017-02-10 | 2022-05-10 | Fujikin Incorporated | Flow rate measuring method and flow rate measuring device |
| CN110864772A (en) * | 2019-11-20 | 2020-03-06 | 浙江威星智能仪表股份有限公司 | Method for detecting instantaneous flow of electronic gas meter |
| CN110987472B (en) * | 2019-12-16 | 2021-02-02 | 中国汽车工程研究院股份有限公司 | Bearing seat noise processing system for NVH test of pure electric vehicle electric drive system |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069948A (en) * | 1976-02-09 | 1978-01-24 | The Upjohn Company | Method and apparatus for calibrating a reaction injection molding machine |
| CN1188671C (en) * | 2003-04-11 | 2005-02-09 | 天津大学 | Gas flow standardizing devices |
| KR100782155B1 (en) * | 2006-06-27 | 2007-12-06 | 한국표준과학연구원 | Gas flow measuring device for flow meter calibration |
| CN101251405A (en) * | 2008-04-08 | 2008-08-27 | 朱家顺 | Apparatus for calibrating gas instrument |
| CN101419088A (en) * | 2008-11-28 | 2009-04-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Calibration device for sonic nozzle gas flowmeter by positive-pressure method and application method |
| CN201269771Y (en) * | 2008-09-11 | 2009-07-08 | 浙江奥新仪表有限公司 | Non-leakage air flow rate calibration device by sound speed nozzle method |
| CN101576403A (en) * | 2008-05-05 | 2009-11-11 | 孙永岐 | Gas flow standard device |
| CN102116666A (en) * | 2011-01-05 | 2011-07-06 | 丹东科泰仪器仪表有限公司 | Constant-temperature sonic nozzle process gas flow calibration facility and constant-temperature stagnation vessel |
| CN202075022U (en) * | 2011-04-22 | 2011-12-14 | 中国石油天然气股份有限公司 | On-line real-flow verification device for small natural gas flow meter |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1057934C (en) * | 1998-02-13 | 2000-11-01 | 韩德五 | Electuary benefitting for liver and preparation method thereof |
-
2015
- 2015-01-04 CN CN201510001542.5A patent/CN104501917B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4069948A (en) * | 1976-02-09 | 1978-01-24 | The Upjohn Company | Method and apparatus for calibrating a reaction injection molding machine |
| CN1188671C (en) * | 2003-04-11 | 2005-02-09 | 天津大学 | Gas flow standardizing devices |
| KR100782155B1 (en) * | 2006-06-27 | 2007-12-06 | 한국표준과학연구원 | Gas flow measuring device for flow meter calibration |
| CN101251405A (en) * | 2008-04-08 | 2008-08-27 | 朱家顺 | Apparatus for calibrating gas instrument |
| CN101576403A (en) * | 2008-05-05 | 2009-11-11 | 孙永岐 | Gas flow standard device |
| CN201269771Y (en) * | 2008-09-11 | 2009-07-08 | 浙江奥新仪表有限公司 | Non-leakage air flow rate calibration device by sound speed nozzle method |
| CN101419088A (en) * | 2008-11-28 | 2009-04-29 | 沈阳黎明航空发动机(集团)有限责任公司 | Calibration device for sonic nozzle gas flowmeter by positive-pressure method and application method |
| CN102116666A (en) * | 2011-01-05 | 2011-07-06 | 丹东科泰仪器仪表有限公司 | Constant-temperature sonic nozzle process gas flow calibration facility and constant-temperature stagnation vessel |
| CN202075022U (en) * | 2011-04-22 | 2011-12-14 | 中国石油天然气股份有限公司 | On-line real-flow verification device for small natural gas flow meter |
Non-Patent Citations (1)
| Title |
|---|
| 超大口径音速喷嘴法气体流量标准装置;周轶 等;《计量技术》;20131113(第11期);第46页第1节、第47页第3.1节、第3.4节、第48页第3.5节、第4.7节，附图1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104501917A (en) | 2015-04-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104501917B (en) | Super large caliber sonic nozzle group formula gas flowmeter calibrating installation | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN105021262B (en) | The adjustable gas flow scaling method of temperature, pressure | |
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| CN107014598B (en) | A kind of air valve air inlet performance testing device and test method | |
| CN103306968A (en) | Transformer oil pump testing device and testing method thereof | |
| CN205300835U (en) | Flow flow resistance coefficient detection device of valve | |
| CN208060103U (en) | A kind of exhaust system quantity of gas leakage detection device | |
| CN101576403A (en) | Gas flow standard device | |
| CN102230817B (en) | Recycled two-phase flow flowmeter calibrating platform of wet steam | |
| CN103900665B (en) | Container combination and commutation valve type pVTt method gas flow meter | |
| CN201193955Y (en) | Gas flow accuracy calibrating apparatus | |
| CN204330096U (en) | Super large caliber sonic nozzle group formula gas meter calibrating installation | |
| CN103837215A (en) | Reversing valve type pVTt-method gas flow device | |
| CN107727388A (en) | A kind of air valve flow testing system | |
| CN202304962U (en) | Air tunnel type speed-area-method air flow calibration device | |
| CN204612907U (en) | A kind of aircraft Pneumatic high-altitude annex proving installation | |
| CN204352739U (en) | A kind of gas analyzer cool-down dehumidification device | |
| CN202024808U (en) | Recovery type wet steam two-phase flow flowmeter calibration table | |
| CN203908834U (en) | Pretreatment system for on-line coal gasification analysis sample | |
| CN203534679U (en) | Correction system of orifice plate flow meter | |
| CN108019344B (en) | Method for testing efficiency of electric water supply pump set | |
| CN208330695U (en) | A kind of pneumatics apparatus test device for simulating applying working condition | |
| CN205785652U (en) | A kind of device of detected air pressure | |
| CN201828556U (en) | Comprehensive calibration console for gas sensor alarm device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |