CN207215249U - Flowmeter dynamic calibration apparatus - Google Patents
Flowmeter dynamic calibration apparatus Download PDFInfo
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- CN207215249U CN207215249U CN201721273394.3U CN201721273394U CN207215249U CN 207215249 U CN207215249 U CN 207215249U CN 201721273394 U CN201721273394 U CN 201721273394U CN 207215249 U CN207215249 U CN 207215249U
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- valve body
- pipeline
- flowmeter
- baffle plate
- calibration apparatus
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Abstract
The utility model provides a kind of flowmeter dynamic calibration apparatus, including pumping plant, overflow valve, the first pipeline, by school flowmeter, second pipe, fuel tank, valve body, nozzle, fine-tuning nut, preloading spring, baffle plate, division board and pressure pushes away driver；The first pipeline upper end connects the overflow valve and pumping plant；First lower end of duct is extend into the valve body；The other end of first pipeline is connected with described by school flowmeter, described to connect the second pipe by the school flowmeter other end, and the other end of the second pipe connects the fuel tank.The utility model is simple in construction, and calibration is convenient and accurate, greatly accelerates operating efficiency.
Description
Technical field
It the utility model is related to fuel flowmeter technical field, more particularly to a kind of flowmeter dynamic calibration apparatus.
Background technology
Fuel flowmeter is also known as PETROL flowmeters, and Italian PETROL was founded in 1970, was according to Roots principles
European unique manufacturer of positive displacement liquid measurement, professional production PD flowmeters and related accessories product are carried out, for measuring work
The flow and volume of various liquid, are widely used in the industry such as oil, petrochemical industry, chemical industry, oil gas field, pharmacy, electric power in industry application
Field.Fluid flows into from the import of casing, a pair of bearings is fixed on tube hub axis by support, turbine is arranged on bearing
On.The cowling panel of Radiation is housed on the support of turbine upstream and downstream, play the guiding role with convection body, to avoid flowing spins
Change the angle to turbo blade.Sensor coil is being housed above turbine outside casing, is receiving flux change signal.But
Existing flow meter calibrating is inconvenient and precision is low.
Utility model content
（One）Technical problems to be solved
Problem to be solved in the utility model is to provide a kind of flowmeter dynamic calibration apparatus, to overcome prior art lieutenant colonel
The defects of quasi- inconvenience and low precision.
（Two）Technical scheme
To solve the technical problem, the utility model provides a kind of flowmeter dynamic calibration apparatus, including pumping plant, overflow
Valve, the first pipeline, by school flowmeter, second pipe, fuel tank, valve body, nozzle, fine-tuning nut, preloading spring, baffle plate, division board
Driver is pushed away with pressure；The first pipeline upper end connects the overflow valve and pumping plant；First lower end of duct extend into institute
State in valve body；The other end of first pipeline is connected with described by school flowmeter, described to connect institute by the school flowmeter other end
Second pipe is stated, the other end of the second pipe connects the fuel tank；The fine-tuning nut is arranged in the valve body, described
The lower end of fine-tuning nut and first pipeline screws；First lower end of duct is provided with the nozzle；The division board and
Pressure pushes away driver and is separately fixed in the valve body；Described baffle plate one end is fixed with the valve body, and the baffle plate other end is worn
Cross the division board to fix with the preloading spring, the preloading spring lower end is fixed with the valve body；The pressure pushes away driving
Device lower end contacts with the baffle plate；The baffle plate other end described in the face of the nozzle lower end；The valve body lower end is provided with spill port,
The spill port connects the 3rd pipeline, and the 3rd pipeline other end connects fuel tank.
Further, described baffle plate one end is followed closely with screw thread taper bolt with the valve body and fixed.
Further, the division board and the valve seal plugged and fixed.
Further, first pipeline is three-way pipeline.
Further, the first pipeline upper end is provided with fixed orifice.
Further, one end of the second pipe is provided with meter out hole.
（Three）Beneficial effect
Flowmeter dynamic calibration apparatus of the present utility model, simple in construction, calibration is convenient and accurate, greatly accelerates work
Make efficiency.
Brief description of the drawings
Fig. 1 is a kind of structural representation of flowmeter dynamic calibration apparatus of the utility model.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is described in further detail.Below
Embodiment is used to illustrate the utility model, but is not limited to the scope of the utility model.
As shown in figure 1, a kind of flowmeter dynamic calibration apparatus of the present utility model, including pumping plant 1, overflow valve 2, first pipe
Road 4, by school flowmeter 5, second pipe 6, fuel tank 8, valve body 9, nozzle 10, fine-tuning nut 11, preloading spring 12, baffle plate 13, every
Driver 15 is pushed away from plate 14 and pressure；The upper end of first pipeline 4 connects the overflow valve 2 and pumping plant 1；First pipeline 4
Lower end is extend into the valve body 9；The other end of first pipeline 4 is connected with described by school flowmeter 5, described by school flow
Count 5 other ends and connect the second pipe 6, the other end of the second pipe 6 connects the fuel tank 8；The fine-tuning nut 11
It is arranged in the valve body 9, the lower end of the fine-tuning nut 11 and first pipeline 4 screws；The lower end of first pipeline 4 peace
Equipped with the nozzle 10；The division board 14 and pressure push away driver 15 and are separately fixed in the valve body 9；The baffle plate 13 1
End is fixed with the valve body 9, and the other end of baffle plate 13 is fixed through the division board 14 with the preloading spring 12, described pre-
The tight lower end of spring 12 is fixed with the valve body 9；The pressure pushes away the lower end of driver 15 and contacted with the baffle plate 13；The nozzle 10
The other end of baffle plate 13 described in the face of lower end；The lower end of valve body 9 is provided with spill port 16, and the spill port 16 connects the 3rd pipeline
17, the other end of the 3rd pipeline 17 connects fuel tank 8.
Described one end of baffle plate 13 is fixed with the valve body 9 with screw thread taper bolt nail.The division board 14 and the valve body 9 are close
Seal plugged and fixed, good airproof performance.First pipeline 4 is three-way pipeline.The upper end of first pipeline 4 is provided with fixed orifice
3.One end of the second pipe 6 is provided with meter out hole 7.
During flow meter calibrating, pumping plant 1 is pressurizeed, the fluid media (medium) after the partial pressure of overflow valve 2 is flowed into through the hole of fixed restriction 3 and controlled
Chamber.Then, fluid is divided into two, all the way through flowing back to fuel tank by school flowmeter 5, meter out hole 7；Another way flows through nozzle 10
Go out, fuel tank 8 is flowed back to by the pipeline 17 of spill port 16 and the 3rd of the bottom of valve body 9.Screw thread circular cone is used between baffle plate 13 and valve body 9
Pin is fixed and clamped, and ensure that the perpendicularity requirement of baffle plate 13 and mounting plane.In order to probe between nozzle 10 and baffle plate 13
Influence of the primary clearance to dynamic performance, devises fine-tuning nut 11, can be used to flexibly to control nozzle 10 and baffle plate 13 it
Between distance, the upper surface by fine-tuning nut 11 is pacified with the inner surface common guarantee nozzle 10 of valve body 9 through polishing with baffle plate 13
The perpendicularity requirement of holding position.Under normal circumstances, the output displacement of piezoelectric stack driver 15 only has tens microns of orders of magnitude, utilizes
So small displacement controls the gap of nozzle 10, baffle plate 13, adjustment effect to the resistance of variable liquid be it is very little, thus,
Flexible hinge baffle plate 13 in system not only acts as the effect for adjusting variable liquid resistance, also as the output displacement of piezoelectric stack driver 15
Amplification instrument.Be that piezoelectric stack driver 15 applies pretightning force by preloading spring 12, the power of preloading spring 12 by with its phase
The spinning in and out control of the fine-tuning nut 11 of contact.Its is optimal for competence exertion in more dry environment for piezoelectric stack driver 15
Performance：The effect of division board 14 is the cavity isolated where the cavity and injection fluid at the place of piezoelectric stack driver 15, ensures pressure
The drying of electric chamber.Threeway is passed through by the place pipeline of school flowmeter 5, the place pipeline of fixed orifice 3 and the place pipeline of nozzle 10
Connection, constitute the control chamber of valve body 9.To ensure by the stabilization of the speed of incoming flow field of school flowmeter 5, before and after school flowmeter 5
The straight length for not being shorter than 5 times of caliber length should all be stopped.
Flowmeter dynamic calibration apparatus of the present utility model, simple in construction, calibration is convenient and accurate, greatly accelerates work
Make efficiency.
In summary, above-mentioned embodiment is not restricted embodiment of the present utility model, the technology of all this areas
The modification or equivalent deformation that personnel are carried out on the basis of substantive content of the present utility model, in skill of the present utility model
Art category.
Claims (6)
- A kind of 1. flowmeter dynamic calibration apparatus, it is characterised in that：Including pumping plant, overflow valve, the first pipeline, by school flowmeter, Second pipe, fuel tank, valve body, nozzle, fine-tuning nut, preloading spring, baffle plate, division board and pressure push away driver；Described first Pipeline upper end connects the overflow valve and pumping plant；First lower end of duct is extend into the valve body；First pipeline The other end is connected with described by school flowmeter, described to connect the second pipe, the second pipe by the school flowmeter other end The other end connect the fuel tank；The fine-tuning nut is arranged in the valve body, the fine-tuning nut and first pipeline Lower end screw；First lower end of duct is provided with the nozzle；The division board and pressure push away driver and are separately fixed at In the valve body；Described baffle plate one end is fixed with the valve body, and the baffle plate other end passes through the division board and the pretension Spring is fixed, and the preloading spring lower end is fixed with the valve body；The pressure pushes away driver lower end and contacted with the baffle plate；Institute State the baffle plate other end described in the face of nozzle lower end；The valve body lower end is provided with spill port, and the spill port connects the 3rd pipeline, The 3rd pipeline other end connects fuel tank.
- 2. flowmeter dynamic calibration apparatus according to claim 1, it is characterised in that：Described baffle plate one end and the valve body Followed closely and fixed with screw thread taper bolt.
- 3. flowmeter dynamic calibration apparatus according to claim 1, it is characterised in that：The division board and the valve body are close Seal plugged and fixed.
- 4. flowmeter dynamic calibration apparatus according to claim 1, it is characterised in that：First pipeline is three-way pipe Road.
- 5. flowmeter dynamic calibration apparatus according to claim 1, it is characterised in that：The first pipeline upper end is provided with Fixed orifice.
- 6. the flowmeter dynamic calibration apparatus according to any one of claim 1 to 5, it is characterised in that：The second pipe One end be provided with meter out hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273394.3U CN207215249U (en) | 2017-09-30 | 2017-09-30 | Flowmeter dynamic calibration apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721273394.3U CN207215249U (en) | 2017-09-30 | 2017-09-30 | Flowmeter dynamic calibration apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207215249U true CN207215249U (en) | 2018-04-10 |
Family
ID=61820140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721273394.3U Active CN207215249U (en) | 2017-09-30 | 2017-09-30 | Flowmeter dynamic calibration apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207215249U (en) |
-
2017
- 2017-09-30 CN CN201721273394.3U patent/CN207215249U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHEJIANG DONGXING SOFTWARE DEVELOPMENT Co.,Ltd. Assignor: ZHEJIANG CANGNAN INSTRUMENT GROUP Co.,Ltd. Contract record no.: X2021330000177 Denomination of utility model: Flowmeter dynamic calibration device Granted publication date: 20180410 License type: Common License Record date: 20210830 |
|
| EE01 | Entry into force of recordation of patent licensing contract |