CN207779516U - A kind of natural gas big flow reality stream calibrating installation - Google Patents
A kind of natural gas big flow reality stream calibrating installation Download PDFInfo
- Publication number
- CN207779516U CN207779516U CN201721907483.9U CN201721907483U CN207779516U CN 207779516 U CN207779516 U CN 207779516U CN 201721907483 U CN201721907483 U CN 201721907483U CN 207779516 U CN207779516 U CN 207779516U
- Authority
- CN
- China
- Prior art keywords
- header
- secondary standard
- entrance
- table position
- valve
- 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
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model discloses a kind of natural gas big flow reality stream calibrating installation, including sequentially connected air inlet, filtering separation device, controlling valve of voltage regulation group, bypass flow regulator group and exhaust outlet, the lower end of controlling valve of voltage regulation group is connected with bypass flow regulator group, work grade standard set-up and high-precision verification table position respectively, the grade standard set-up that works includes No. 4 turbines and 1 road waist wheel, the upper and lower side of No. 4 turbines is equipped with header, rotz flowmeter is independently disposed to except header, work grade standard set-up can be connect with verification table position, can also be connect with secondary standard device；Secondary standard device is set there are three entrance, secondary standard device first entrance is connected with work grade standard set-up and high-precision verification table position, secondary standard device second entrance and secondary standard device third entrance are connected with verification table position, and the lower end of the verification table position and secondary standard device can all be connected with mainstream adjustable valve group.Using the verification system after optimization, verifying process flow is versatile and flexible, and calibrating function is more perfect.
Description
Technical field
The utility model belongs to a kind of real stream calibrating process system, and in particular to a kind of natural gas big flow reality stream calibrating dress
It sets.
Background technology
Currently, stream calibrating process system has formd more mature typical module to domestic natural gas big flow in fact,
As shown in Fig. 2, including mainly air inlet, filtering separation device, controlling valve of voltage regulation group, more station adjusts valve group, main flow is adjusted
Valve group, bypass flow regulator group, traditional verification table position, high-precision verification table position, conventional operation grade standard set-up, conventional secondary
The mobile calibrating vehicle interface of standard set-up, tradition and exhaust outlet and nitrogen purging and blow-down pipe etc..
Conventional operation grade standard set-up is by turbine flowmeter（Different flow range）Composition is forced per the setting of lower end on the way
Expansion bend etc. is arranged in seal ball-valve, nitrogen purge line, blow-down pipe, lower end, by opening the forced seal ball valve that do not go the same way
Selection is not gone the same way the combination of turbine flowmeter；Conventional secondary standard set-up is by critical flow venturi nozzle（Different critical stream
Amount）1 tool header is respectively arranged in composition, upper and lower side, and forced seal ball valve is arranged per lower end on the way, and expansion bend etc. is arranged in lower end, leads to
The forced seal ball valve selection opened and do not gone the same way is crossed not go the same way the combination of critical flow venturi nozzle.
When normal work, natural gas is derived from the point defeated station or pipe network of support, and by more standing, regulating valve group distributes our station
The natural gas of required maximum calibrating flow by overpressure protection, is separated by filtration, enters calibrating area after voltage stabilizing is adjusted, passes through master
The cooperation of flow-rate adjustment valve group and bypass flow regulator group distributes the day of different tolerance according to the requirement of vertification regulation successively
Right gas passes through traditional standard device（Secondary/work grade）With tested flowmeter, following calibrating function is realized：
A, work grade standard test is detected flowmeter：
Air inlet（Air inlet）→ filtering separation device → controlling valve of voltage regulation group → conventional operation grade standard set-up →
Traditional verification table position → mainstream adjustable valve group → exhaust outlet（Exhaust）；
B, secondary standard calibration operation grade standard：
Air inlet（Air inlet）→ filtering separation device → controlling valve of voltage regulation group → conventional operation grade standard set-up →
Conventional secondary standard set-up → mainstream adjustable valve group → exhaust outlet（Exhaust）；
C, secondary standard calibrating is detected flowmeter：
Air inlet（Air inlet）→ filtering separation device → controlling valve of voltage regulation group → high-precision verification table position → tradition
Secondary standard device → mainstream adjustable valve group → exhaust outlet（Exhaust）；
D, the mobile calibrating vehicle of secondary standard calibration：
Air inlet（Air inlet）The mobile calibrating vehicle interface → biography of → filtering separation device → controlling valve of voltage regulation group → tradition
System secondary standard device → mainstream adjustable valve group → exhaust outlet（Exhaust）.
The calibrating range that traditional natural gas big flow flows verification system in fact is smaller, and accurate inspection can not be realized to small flow
Fixed, the quantity of pipeline and forced seal ball valve is more in system so that the cost of whole system is very high, examine and determine the tube capacity of pipeline compared with
Greatly so that systematic survey uncertainty when calibrating is relatively low.
Utility model content
The purpose of this utility model is a kind of natural gas big flow reality stream calibrating installation, real to traditional natural gas big flow
Stream verification system is optimized, and increases calibrating function, reduces valve and number of lines, reduce the tube capacity of calibrating pipeline, improves
Accuracy is examined and determine, investment is reduced, rationally utilizes existing occupation of land.
To achieve the goals above, the utility model adopts the following technical solution is achieved.
A kind of natural gas big flow stream calibrating installation, including sequentially connected air inlet, filtering separation device, voltage stabilizing tune in fact
Valve group, bypass flow regulator group and exhaust outlet are saved, is included in the more station between air inlet and exhaust outlet and adjusts valve group, including inspection
Determine platform position, high-precision verification table position, work grade standard set-up, secondary standard device, mainstream adjustable valve group and mobile calibrating vehicle
Interface, it is characterised in that：The lower end of the controlling valve of voltage regulation group is also connected with work respectively in addition to being connected with bypass flow regulator group
Grade standard set-up and high-precision verification table position, the work grade standard set-up include 4 road turbine flowmeters being set up in parallel and 1 tunnel
Rotz flowmeter, the upper and lower sides of 4 road turbine flowmeters are equipped with the first header, rotz flowmeter be independently disposed to the first header it
Outside, the upper end is connected by a common electric valve with the lower end of controlling valve of voltage regulation group, and the lower end of rotz flowmeter and pressure are close
Blocking valve connects, and the work grade standard set-up can pass through the first header of turbine flowmeter lower end and rotz flowmeter lower end
Forced seal ball valve is connect with verification table position and secondary standard device；The lower end of the verification table position and mainstream adjustable valve group
Upper end is connected, and the lower end of the mainstream adjustable valve group is connected with exhaust outlet；The secondary standard device is set there are three entrance, point
Other secondary standard device first entrance, secondary standard device second entrance and secondary standard device third entrance, the secondary mark
The upper end of standard apparatus first entrance can be connected with the lower end of work grade standard set-up and high-precision verification table position, the secondary standard
The upper end of device second entrance and secondary standard device third entrance can be connected with the lower end of verification table position, the secondary standard dress
Setting can be connected by the 5th header of lower end with the upper end of mainstream adjustable valve group.
3 a diameter of 250mm in 4 road turbine flowmeters of the work grade standard set-up, 1 a diameter of
150mm, a diameter of 100mm of No. 1 rotz flowmeter are equipped with common electricity between the first header of the turbine flowmeter and the upper end
Dynamic valve, is equipped with forced seal ball valve between the turbine flowmeter and its first header of lower end, the work grade standard set-up
The first header of upper end is equipped with 1 tunnel nitrogen purge line, and the first header of lower end is equipped with blow-down pipe.
The secondary standard device includes critical flow venturi nozzle, the third header of upper end and the 4th header and lower end
The lower end of 5th header, third header is equipped with 4 tunnels critical flow venturi nozzle arranged side by side, and the lower end of the 4th header can be equipped with 11 tunnels
The lower end of critical flow venturi nozzle arranged side by side, all critical flow venturi nozzles is all connected with the 5th header；The secondary mark
Standard apparatus first entrance and secondary standard device second entrance are located on third header, and the secondary standard device third entrance is set
On the 4th header.
The a diameter of 50mm for 4 road critical flow venturi nozzles being connected with third header in the secondary standard device, with
Two of a diameter of 100mm of 11 connected road critical flow venturi nozzles of 4th header, the third header and the 4th header
Nozzle is connected, and is set there are one forced seal ball valve in centre, is set between all critical flow venturi nozzles and third header
There is forced seal ball valve, forced seal ball valve, the upper end of the secondary standard device first entrance also are provided between the 4th header
If there are one forced seal ball valves.
The verification table position is divided into 5 tunnels, wherein the lower end on 4 tunnels is set there are two the second header, two-way shares 1 second remittance
Pipe, the lower end of the second header are connect with the upper end of mainstream adjustable valve group, and the lower end on other 1 tunnel of verification table position is strong by one
Seal ball-valve processed is directly connect with the upper end of mainstream adjustable valve group.
The pipe diameter of 5 road platform positions of the verification table position is respectively 250mm, 300mm, 200mm, 150mm and 100mm,
The upper and lower side of the 5 road platform position is respectively equipped with forced seal ball valve, wherein the forced seal ball valve on 4 tunnels be located at upper and lower side header and
Between platform position.
The mobile calibrating vehicle interface is set as two, and respectively mobile calibrating vehicle first interface and mobile calibrating vehicle second connect
Mouthful, the mobile calibrating vehicle first interface is detachably connected on the upper and lower side interface of high-precision verification table position by S type bend pipes,
The mobile calibrating vehicle second interface is detachably connected on the platform position of a diameter of 250mm in verification table position again by S type bend pipes
On.
The beneficial effects of the utility model：Using the verification system after optimization, secondary standard calibration operation grade mark is realized
Accurate, secondary standard calibrating be detected flowmeter, secondary standard calibrating locomotive, secondary standard examine and determine small flow the control of small tube capacity,
The grade standard test that works is detected the function of flowmeter and the grade standard calibration locomotive that works, and verifying process flow is versatile and flexible, inspection
It is more perfect to determine function.
1, work grade standard set-up improves the length of small flow section calibrating using rotz flowmeter as small-bore standard scale
Phase stability（Annual flow error variable quantity is no more than 0.05%）；Simplify each pipeline and be vented flow setting, reduces 50mm and force
Each 5 of sealing valve, shut-off valve simplify each pipeline and note nitrogen flow setting, reduce 50mm forced seals valve, each 4 of shut-off valve, simplifies
Each pipeline telescopic device setting, cancels expansion bend 5, reduces about 1,260,000 yuan of investment.
2, after verification table position upper end header merges with work grade standard set-up lower end header, the header 2 of diameter 400mm is reduced
Reduce tube capacity 0.8m in the platform position of tool, 150mm, 200mm3, tube capacity 1.12m is reduced in 250mm and 300mm platforms position3。
3,2 mobile calibrating vehicle interfaces are set use the interim access system of S elbow, simplifies switching pipeline flow, increases
1,250mm forced seals valve reduces 1,100mm forced seals valve, 5,300mm forced seals valve, 400mm forced seals valve 1
It is a, 250mm expansion bends two are reduced, reduce about 2,380,000 yuan of investment altogether；The setting of mobile calibrating vehicle second interface increases work
Make the function of grade standard calibration locomotive.
4, secondary standard upper end header is divided into two headers of size, reduces tube capacity 1.3m when small flow verification3, improve
Systematic survey uncertainty when calibrating.
Description of the drawings
The utility model is described in further details below with reference to attached drawing.
Fig. 1 is the process flow chart of the utility model；
Fig. 2 is that traditional natural gas big flow flows verification system flow chart in fact.
In figure：1. air inlet；2. filtering separation device；3. controlling valve of voltage regulation group；4. more station adjusts valve group；5. work grade mark
Standard apparatus；51. conventional operation grade standard set-up；6. verification table position；61. traditional verification table position；7. high-precision verification table position；8. passing
The mobile calibrating vehicle interface of system；81. movement calibrating vehicle first interface；82. movement calibrating vehicle second interface；9. secondary standard device；
91. conventional secondary standard set-up；9-1. secondary standard device first entrances；9-2. secondary standard device second entrances；9-3. secondary
Grade standard set-up third entrance；10. mainstream adjustable valve group；11. bypass flow regulator group；12. nitrogen purge line；13.
Blow-down pipe；14. turbine flowmeter；15. rotz flowmeter；16. common electric valve；17. forced seal ball valve；18. critical flow
Venturi nozzle；191. first headers；192. second headers；193. third headers；194. the 4th headers；195. the 5th headers；
20. exhaust outlet；21. expansion bend.
Specific implementation mode
Embodiment 1：
The present embodiment provides a kind of natural gas big flows to flow calibrating installation in fact, as shown in Figure 1, including sequentially connected air inlet
Mouth 1, filtering separation device 2, controlling valve of voltage regulation group 3, bypass flow regulator group 11 and exhaust outlet 20, are included in 1 He of air inlet
More station between exhaust outlet 20 adjusts valve group 4, including verification table position 6, high-precision verification table position 7, work grade standard set-up 5, secondary
Grade standard set-up 9, mainstream adjustable valve group 10 and mobile calibrating vehicle interface, it is characterised in that：Under the controlling valve of voltage regulation group 3
End is also connected with work grade standard set-up 5 and high-precision verification table position 7 respectively in addition to being connected with bypass flow regulator group 11, described
Work grade standard set-up 5 includes 15, the 4 road turbine flowmeter 14 of 4 road turbine flowmeters 14 and No. 1 rotz flowmeter being set up in parallel
Upper and lower side be equipped with the first header 191, rotz flowmeter 15 is independently disposed to except the first header 191, and the upper end passes through one
Common electric valve 16 is connected with the lower end of controlling valve of voltage regulation group 3, and the lower end of rotz flowmeter 15 is connect with forced seal ball valve 17,
The work grade standard set-up 5 can pass through the strong of 15 lower end of the first header 191 and rotz flowmeter of 14 lower end of turbine flowmeter
Seal ball-valve 17 processed is connect with verification table position 6 and secondary standard device 9；The lower end of the verification table position 6 and mainstream adjustable valve
The upper end of group 10 is connected, and the lower end of the mainstream adjustable valve group 10 is connected with exhaust outlet 20；The secondary standard device 9 is equipped with
Three entrances, respectively secondary standard device first entrance 9-1, secondary standard device second entrance 9-2 and secondary standard device the
It the upper end of three entrance 9-3, the secondary standard device first entrance 9-1 can be with work grade standard set-up 5 and high-precision verification table
The lower end of position 7 is connected, and the upper end of the secondary standard device second entrance 9-2 and secondary standard device third entrance 9-3 can be with
The lower end of verification table position 6 is connected, and the secondary standard device 9 can pass through the 5th header 195 and mainstream adjustable valve group of lower end
10 upper end is connected.
Using the verification system after optimization, secondary standard calibration operation grade standard, the tested stream of secondary standard calibrating are realized
Gauge, secondary standard calibrating locomotive, secondary standard examine and determine the small tube capacity control of small flow, work grade standard test is detected flow
The function of meter and work grade standard calibration locomotive, and verifying process flow is versatile and flexible, and calibrating function is more perfect.It is as follows：
A. grade standard test that works is detected flowmeter：
Air inlet 1（Air inlet）2 → controlling valve of voltage regulation of → filtering separation device group 3 → work grade standard set-up 5 → inspection
Determine platform position 6 → mainstream adjustable valve group, 10 → exhaust outlet 20（Exhaust）；
B. work a grade standard calibration locomotive：
Air inlet 1（Air inlet）2 → controlling valve of voltage regulation of → filtering separation device group 3 → work grade standard set-up 5 → shifting
10 → exhaust outlet of dynamic calibrating vehicle second interface 82 → mainstream adjustable valve group 20（Exhaust）；
C. secondary standard calibrates locomotive：
Air inlet 1（Air inlet）2 → controlling valve of voltage regulation of → filtering separation device group 3 → movement calibrating vehicle first interface 81
10 → exhaust outlet of → secondary standard device 9 → mainstream adjustable valve group 20（Exhaust）；
D. secondary standard calibration operation grade standard：
The small flow section of a secondary standard calibration operation grade standards：
Air inlet 1（Air inlet）2 → controlling valve of voltage regulation of → filtering separation device group 3 → work grade standard set-up 5 → secondary
Standard set-up first entrance 9-1 → secondary standard device 9（4 road Nozzle combination of the left side）→ mainstream adjustable valve group 10 → row
Gas port 20（Exhaust）；
B secondary standard calibration operation grade standard big flow sections：
Air inlet 1（Air inlet）2 → controlling valve of voltage regulation of → filtering separation device group 3 → work grade standard set-up 5 → secondary
Grade standard set-up first entrance 9-1 → 10 → exhaust outlet of secondary standard device 9 → mainstream adjustable valve group 20（Exhaust）；
E. secondary standard calibrating is detected flowmeter：
A secondary standards examine and determine small-bore tested flowmeter：
Air inlet 1（Air inlet）→ filtering separation device 2 → controlling valve of voltage regulation group 3 → rotz flowmeter, 15 → verification table
Position（100mm platforms position）→ secondary standard device second entrance 9-2 → secondary standard device 9（4 road Nozzle combination of left side）→ exhaust
Mouth 20（Exhaust）；
B secondary standards examine and determine larger caliber and are detected flowmeter：
Air inlet 1（Air inlet）3 → turbine flowmeter of → filtering separation device 2 → controlling valve of voltage regulation group 14（Diameter
150mm）→ verification table position（150mm platforms position）→ secondary standard device third entrance 9-3 → secondary standard device 9（11 tunnel of right side
Nozzle combination）→ exhaust outlet 20（Exhaust）；
C secondary standards examine and determine heavy caliber and are detected flowmeter：
Air inlet 1（Air inlet）→ filtering separation device 2 → controlling valve of voltage regulation group 3 → high-precision verification table position 7 → secondary
Standard set-up first entrance 9-1 → 9 → exhaust outlet of secondary standard device 20（Exhaust）.
Embodiment 2：
The present embodiment is specifically described the work grade standard set-up 5 on the basis of embodiment 1, such as Fig. 1, institute
State 3 a diameter of 250mm in 4 road turbine flowmeters 14 of work grade standard set-up 5,1 a diameter of 150mm, 1 road waist
A diameter of 100mm of flowmeters 15 is equipped with common electric valve between the turbine flowmeter 14 and the first header of the upper end 191
16, forced seal ball valve 17, the work grade standard dress are equipped between the turbine flowmeter 14 and its first header of lower end 191
The first header of upper end 191 for setting 5 is equipped with 1 tunnel nitrogen purge line 12, and the first header of lower end 191 is equipped with blow-down pipe 13.
Such as Fig. 2, the work grade standard set-up 5 that traditional natural gas big flow is flowed in fact in verification system generally uses turbine flow
Gauge 14 is used as work grade standard scale, but 14 long-time stability of small-bore turbine flowmeter are poor.Turbine belongs to speed mode
Flowmeter, turbo blade and axis are there are frictional force, and when below some critical point of small flow section, gas is influenced very by frictional force
Greatly, for the flow velocity of the blade rotational speed and real fluid that measure there are a degree of difference, measurement accuracy is poor；And speed mode stream
Gauge is by the larger Re=ρ vd/ μ of Reynolds number effect, and when bore d is smaller, gas Reynolds number is smaller, and fluidised form tends to laminar flow, balance
Poor with repdocutbility, the long-time stability of flowmeter are poor.Waist wheel belongs to volumetric flowmeter, by frictional force and thunder when small flow section
The influence of promise number is smaller, and there are better long-time stability, annual flow error variable quantity to be no more than 0.05%, 100mm waists
Flowmeters 15 are in 10 ~ 400m3Error in/h range abilities is small by -0.15 ~+0.25%, and the linearity is high, and stability is good, is conducive to stream
The amendment of gauge error.Therefore, the utility model selects the rotz flowmeter 15 of 100mm to be used as small-bore work grade normal flow
Meter.
It is infrequently dismantled after being installed due to proving flowmeter, the utility model is eliminated per lower retractable device 21 all the way.By
Forced seal ball valve 17 should be set in the emptying with calibrating piping connection, nitrogen purge line 12 and ensure zero leakage, and forced
The general ball valve of output investment ratio of seal ball-valve 17 is higher, thus the utility model eliminate per all the way be vented, purge it is hand-operated forced
Only nitrogen purge line 12, lower end header setting blow-down pipe is arranged in upper end header in sealing valve, hand-operated valve and corresponding pipeline
13, it can equally realize purging and emptying function.
In short, the work grade standard set-up 5 of the utility model is used as small-bore standard scale using rotz flowmeter 15, improve
The flow error variable quantity that the long-time stability of small flow section calibrating are annual is no more than 0.05%；Simplify each pipeline and is vented flow
Setting reduces 50mm forced seals valve, each 5 of shut-off valve, simplifies each pipeline and notes nitrogen flow setting, reduces 50mm forced seals
Each 4 of valve, shut-off valve simplify each pipeline telescopic device 21 and are arranged, cancel expansion bend 21 5, reduces about 1,260,000 yuan of investment.
Embodiment 3：
The present embodiment is specifically described the secondary standard device 9 on the basis of embodiment 1, as shown in Figure 1, institute
It includes critical flow venturi nozzle 18, the third header 193 of upper end and the 4th header 194 and lower end to state secondary standard device 9
5th header 195, the lower end of third header 193 are equipped with 4 tunnels critical flow venturi nozzle 18 arranged side by side, under the 4th header 194
End can be equipped with 11 tunnels critical flow venturi nozzle 18 arranged side by side, the lower ends of all critical flow venturi nozzles 18 all with the 5th header
195 are connected；The secondary standard device first entrance 9-1 and secondary standard device second entrance 9-2 are located at third header 193
On, the secondary standard device third entrance 9-3 is located on the 4th header 194.
4 road critical flow venturi nozzles 18 being connected with third header 193 in the secondary standard device 9 it is a diameter of
50mm, a diameter of 100mm for 11 road critical flow venturi nozzles 18 being connected with the 4th header 194,193 He of third header
Two nozzles of the 4th header 194 are connected, and set in centre that there are one forced seal ball valve 17, all critical flow venturi
It is equipped between nozzle 18 and third header 193 and also is provided with forced seal ball valve 17 between forced seal ball valve 17, with the 4th header 194,
The upper end of the secondary standard device first entrance 9-1 is set there are one forced seal ball valve 17.
Standard set-up of the secondary standard device 9 as core, no matter calibration operation grade standard or when tested flowmeter, deposit
The case where small-flow gas is also required to first full of entire upper end header, increase on definite meaning checklist and standard scale it
Between tube capacity, reduce systematic uncertainty.Therefore the utility model is divided into large and small two headers to upper end header, wherein 4 tunnels
50mm10 m3/h、20 m3/h、40 m3/h、80m3/ h is connect with small third header 193,11 road 100mm160 m3/h、320
m3/ h, 9 tunnel, 400 m3/ h is connect with the 4th big header 194.
1）When calibration operation proving flowmeter group or calibrating 250mm-300mm flowmeters, calibrating gas passes through secondary standard
Device first entrance 9-1 enters device, by the critical flow venturi nozzle 18 of the different ways of unlatching, is discharged to down by outlet
End.
2）When examining and determine 50mm-100mm flowmeters, the valve outside secondary standard device first entrance 9-1 devices is closed,
Calibrating gas enters device by secondary standard device second entrance 9-2, is sprayed by the critical flow venturi of the different ways of unlatching
Mouth 18 is discharged to lower end by outlet.
3）When examining and determine 150mm flowmeters, the valve outside secondary standard device first entrance 9-1 devices and upper end are closed
Header 300mm forced seal valves, calibrating gas enter device by secondary standard device third entrance 9-3, pass through the difference of unlatching
The critical flow venturi nozzle 18 of way, lower end is discharged to by outlet.
In short, the upper end header of secondary standard device 9 is divided into two headers of size, reduce tube capacity when small flow verification
1.3m3, improve systematic survey uncertainty when calibrating.
Embodiment 4：
The present embodiment is specifically described the verification table position 6 on the basis of embodiment 1, as shown in Figure 1, the inspection
Determine platform position 6 to divide for 5 tunnels, wherein the lower end on 4 tunnels is set there are two the second header 192, two-way shares 1 the second header 192, the second remittance
The lower end of pipe 192 is connect with the upper end of mainstream adjustable valve group 10, and the lower end on other 1 tunnel of verification table position 6 is forced by one
Seal ball-valve 17 is directly connect with the upper end of mainstream adjustable valve group 10.
The pipe diameter of 5 road platform positions of the verification table position 6 is respectively 250mm, 300mm, 200mm, 150mm and 100mm,
The upper and lower side of the 5 road platform position is respectively equipped with forced seal ball valve 17, wherein the forced seal ball valve 17 on 4 tunnels is located at upper and lower side remittance
Between pipe and platform position.
Tube capacity between verification table position 6 and work grade standard belongs to effective tube capacity in verification process, it should and it is as small as possible,
The uncertainty of verification system is improved, therefore the utility model eliminates the tested flow of adjacent bore in traditional mode such as Fig. 2
It counts upper end and small header is set, the upper end header of all verification table positions 6 is shared with work grade lower end header.6 upper end of verification table position
After header merges with work grade lower end header, the header 2 for reducing diameter 400mm has, and tube capacity is reduced in the platform position of 150mm, 200mm
0.8m3, tube capacity 1.12m is reduced in 250mm and 300mm platforms position3。
Embodiment 5：
The present embodiment is specifically described the mobile calibrating vehicle interface on the basis of embodiment 1, as shown in Figure 1,
The mobile calibrating vehicle interface is set as two, respectively mobile calibrating vehicle first interface 81 and mobile calibrating vehicle second interface 82,
The mobile calibrating vehicle first interface 81 is detachably connected on the upper and lower side interface of high-precision verification table position 7 by S type bend pipes,
The mobile calibrating vehicle second interface 82 is detachably connected on the platform of a diameter of 250mm in verification table position 6 again by S type bend pipes
On position.
Two mobile calibrating vehicle interfaces of the utility model setting are all made of the interim access system of S elbow, simplify switching pipe
Road flow increases by 1,250mm forced seals valve, reduces 1,100mm forced seals valve, 5,300mm forced seals valve, 400mm
1, forced seal valve reduces 250mm expansion bends 21 two, reduces about 2,380,000 yuan of investment altogether；Mobile calibrating vehicle second interface 82
Setting increase the function of work grade standard calibration locomotive.
It is exemplified as above be only to the utility model for example, not constituting to the scope of protection of the utility model
Limitation, it is every to be belonged within the scope of protection of the utility model with the same or analogous design of the utility model.
In addition, those skilled in the art can carry out the utility model various modification and variations without departing from this practicality
Novel spirit and scope.If in this way, these modifications and variations of the present invention belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to include these modifications and variations.
Claims (7)
1. a kind of natural gas big flow stream calibrating installation, including air inlet in fact（1）, filtering separation device（2）, controlling valve of voltage regulation group
（3）, more station adjust valve group（4）, work grade standard set-up（5）, verification table position（6）, high-precision verification table position（7）, mobile calibrating
Vehicle interface, secondary standard device（9）, mainstream adjustable valve group（10）, bypass flow regulator group（11）And exhaust outlet（20）,
Middle air inlet（1）, filtering separation device（2）, controlling valve of voltage regulation group（3）, bypass flow regulator group（11）And exhaust outlet（20）
It is sequentially connected by pipeline, more station adjusts valve group（4）It is located at air inlet（1）And exhaust outlet（20）Between another pipeline on,
It is characterized in that：The controlling valve of voltage regulation group（3）Lower end in addition to being connected with bypass flow regulator group（11）, it is also connected with work respectively
Grade standard set-up（5）With high-precision verification table position（7）, the work grade standard set-up（5）Including 4 tunnel turbine flows being set up in parallel
Gauge（14）With No. 1 rotz flowmeter（15）, 4 road turbine flowmeters（14）Upper and lower side be equipped with the first header（191）, waist is in turn
Gauge（15）It is independently disposed to the first header（191）Except, the upper end passes through a common electric valve（16）With controlling valve of voltage regulation
Group（3）Lower end be connected, rotz flowmeter（15）Lower end and forced seal ball valve（17）Connection, the work grade standard set-up
（5）Turbine flowmeter can be passed through（14）First header of lower end（191）And rotz flowmeter（15）The forced seal ball valve of lower end
（17）With verification table position（6）With secondary standard device（9）Connection；The verification table position（6）Lower end and mainstream adjustable valve group
（10）Upper end be connected, the mainstream adjustable valve group（10）Lower end and exhaust outlet（20）It is connected；The secondary standard device
（9）If there are three entrance, difference secondary standard device first entrance（9-1）, secondary standard device second entrance（9-2）And secondary
Standard set-up third entrance（9-3）, the secondary standard device first entrance（9-1）Upper end can with work grade standard set-up
（5）With high-precision verification table position（7）Lower end be connected, the secondary standard device second entrance（9-2）With secondary standard device
Third entrance（9-3）Upper end can be with verification table position（6）Lower end be connected, the secondary standard device（9）Lower end can be passed through
5th header（195）With mainstream adjustable valve group（10）Upper end be connected.
2. a kind of natural gas big flow according to claim 1 flows calibrating installation in fact, it is characterised in that：The work grade mark
Standard apparatus（5）4 road turbine flowmeters（14）In the road 3 a diameter of 250mm, 1 a diameter of 150mm, 1 waist wheel flow
Meter（15）A diameter of 100mm, the turbine flowmeter（14）With the first header of the upper end（191）Between be equipped with common electric valve
（16）, the turbine flowmeter（14）With its first header of lower end（191）Between be equipped with forced seal ball valve（17）, the work
Grade standard set-up（5）The first header of upper end（191）It is equipped with 1 tunnel nitrogen purge line（12）, the first header of lower end（191）On
Equipped with blow-down pipe（13）.
3. a kind of natural gas big flow according to claim 1 flows calibrating installation in fact, it is characterised in that：The secondary standard
Device（9）Including critical flow venturi nozzle（18）, upper end third header（193）With the 4th header（194）With the of lower end
Five headers（195）, third header（193）Lower end be equipped with 4 tunnels critical flow venturi nozzle arranged side by side（18）, the 4th header
（194）Lower end can be equipped with 11 tunnels critical flow venturi nozzle arranged side by side（18）, all critical flow venturi nozzles（18）Under
End all with the 5th header（195）It is connected；The secondary standard device first entrance（9-1）With secondary standard device second entrance
（9-2）It is located at third header（193）On, the secondary standard device third entrance（9-3）It is located at the 4th header（194）On.
4. a kind of natural gas big flow according to claim 3 flows calibrating installation in fact, it is characterised in that：The secondary standard
Device（9）In with third header（193）4 connected road critical flow venturi nozzles（18）A diameter of 50mm, with the 4th header
（194）11 connected road critical flow venturi nozzles（18）A diameter of 100mm, the third header（193）With the 4th header
（194）Two nozzles be connected, and set there are one forced seal ball valve in centre（17）, all critical flow venturi nozzles
（18）With third header（193）Between be equipped with forced seal ball valve（17）, with the 4th header（194）Between also be provided with forced seal ball valve
（17）, the secondary standard device first entrance（9-1）Upper end set there are one forced seal ball valve（17）.
5. a kind of natural gas big flow according to claim 1 flows calibrating installation in fact, it is characterised in that：The verification table position
（6）It is divided into 5 tunnels, there are two the second headers wherein the lower end on 4 tunnels is set（192）, two-way shares 1 the second header（192）, second converges
Pipe（192）Lower end and mainstream adjustable valve group（10）Upper end connection, verification table position（6）The lower end on other 1 tunnel pass through one
A forced seal ball valve（17）Directly with mainstream adjustable valve group（10）Upper end connection.
6. a kind of natural gas big flow according to claim 5 flows calibrating installation in fact, it is characterised in that：The verification table position
（6）The pipe diameters of 5 road platform positions be respectively 250mm, 300mm, 200mm, 150mm and 100mm, the 5 road platform position up and down
End is respectively equipped with forced seal ball valve（17）, wherein the forced seal ball valve on 4 tunnels（17）It is located between upper and lower side header and platform position.
7. a kind of natural gas big flow according to claim 1 flows calibrating installation in fact, it is characterised in that：The mobile calibrating
Vehicle interface is set as two, respectively mobile calibrating vehicle first interface（81）Vehicle second interface is examined and determine with mobile（82）, the movement
Examine and determine vehicle first interface（81）It is detachably connected on high-precision verification table position by S type bend pipes（7）Upper and lower side interface, it is described
Mobile calibrating vehicle second interface（82）It is detachably connected on verification table position again by S type bend pipes（6）In a diameter of 250mm platform
On position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721907483.9U CN207779516U (en) | 2017-12-30 | 2017-12-30 | A kind of natural gas big flow reality stream calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721907483.9U CN207779516U (en) | 2017-12-30 | 2017-12-30 | A kind of natural gas big flow reality stream calibrating installation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207779516U true CN207779516U (en) | 2018-08-28 |
Family
ID=63225898
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721907483.9U Active CN207779516U (en) | 2017-12-30 | 2017-12-30 | A kind of natural gas big flow reality stream calibrating installation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207779516U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007534A (en) * | 2017-12-30 | 2018-05-08 | 西安长庆科技工程有限责任公司 | A kind of natural gas big flow flows verification system in fact |
| CN109025966A (en) * | 2018-10-09 | 2018-12-18 | 重庆欣雨压力容器制造有限责任公司 | A kind of composite device and method measuring shale gas resulting fluid mass flow |
| CN110081956A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro flow standard device |
-
2017
- 2017-12-30 CN CN201721907483.9U patent/CN207779516U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108007534A (en) * | 2017-12-30 | 2018-05-08 | 西安长庆科技工程有限责任公司 | A kind of natural gas big flow flows verification system in fact |
| CN108007534B (en) * | 2017-12-30 | 2023-12-08 | 西安长庆科技工程有限责任公司 | Natural gas high-flow real-flow verification system |
| CN109025966A (en) * | 2018-10-09 | 2018-12-18 | 重庆欣雨压力容器制造有限责任公司 | A kind of composite device and method measuring shale gas resulting fluid mass flow |
| CN109025966B (en) * | 2018-10-09 | 2024-08-02 | 重庆欣雨压力容器制造有限责任公司 | Combined device and method for measuring shale wellhead fluid mass flow |
| CN110081956A (en) * | 2019-04-29 | 2019-08-02 | 新乡航空工业(集团)有限公司 | Variable viscosity lubricating oil micro flow standard device |
| CN110081956B (en) * | 2019-04-29 | 2024-05-10 | 航空工业(新乡)计测科技有限公司 | Variable viscosity lubricating oil micro-flow standard device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108007534A (en) | A kind of natural gas big flow flows verification system in fact | |
| CN207779516U (en) | A kind of natural gas big flow reality stream calibrating installation | |
| CN103837214A (en) | Combined container type gas flow detection device by pVTt method | |
| CN108225443A (en) | Natural gas flow detects loop device | |
| CN203745051U (en) | Two-position one-way reversing valve type pVTt-method gas flow device | |
| CN108709609A (en) | A kind of natural gas big flow is real to flow calibrating installation and method | |
| CN103837215B (en) | Commutation valve type p.V.T.t method gas flow meter | |
| CN203881553U (en) | Combustion gas pressure regulation test system | |
| CN104422498B (en) | Natural gas flow metering loop detection section device for reducing natural gas pulsating flow | |
| CN207163773U (en) | The sampler of flue gas | |
| CN208859329U (en) | The check system of gas distributing device and jet chimney leak detection system | |
| US11692863B2 (en) | Portable verification system and method for use in verifying a gas pipeline flow meter when in field | |
| CN207908020U (en) | A kind of natural gas big flow reality stream calibrating secondary standard device | |
| CN103900665A (en) | Container combination and reversing valve type pVTt-method gas flow device | |
| CN105806873B (en) | The cold effect experimental rigs of expansion ratios such as combustion engine turbine blade cooling | |
| CN208595954U (en) | A kind of natural gas big flow reality stream calibrating installation | |
| CN212254275U (en) | Gas flow standard device with high-low pressure double calibration sections | |
| CN206772395U (en) | Standard scale self-check type heavy caliber water flow standard apparatus | |
| CN206469920U (en) | A kind of distinguished and admirable measuring device | |
| CN110702942B (en) | Positive-pressure continuous self-compensation blowing type anti-blocking wind speed and wind volume measuring method | |
| CN205861140U (en) | Gas-liquid two-phase mass flowmeter | |
| CN203732139U (en) | Multi-vessel parallel-connection pVTt-method gas flow-rate detection device | |
| CN104359505B (en) | Petrochemical process parameter measurement experimental equipment based on safety interlock system | |
| CN208476364U (en) | A kind of apparatus for calibrating water meter | |
| CN203798391U (en) | Gas metering skid with real flow comparison function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |