CN219084202U - Flowmeter calibrating device - Google Patents
Flowmeter calibrating device Download PDFInfo
- Publication number
- CN219084202U CN219084202U CN202320067079.4U CN202320067079U CN219084202U CN 219084202 U CN219084202 U CN 219084202U CN 202320067079 U CN202320067079 U CN 202320067079U CN 219084202 U CN219084202 U CN 219084202U
- Authority
- CN
- China
- Prior art keywords
- tube
- rubber
- pipetting
- scale
- clamp
- 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
- 239000002253 acid Substances 0.000 claims abstract description 30
- 238000007789 sealing Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 abstract description 12
- 238000000034 method Methods 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract 1
- 238000004088 simulation Methods 0.000 abstract 1
- 238000005259 measurement Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000855 fermentation Methods 0.000 description 1
- PQIOSYKVBBWRRI-UHFFFAOYSA-N methylphosphonyl difluoride Chemical group CP(F)(F)=O PQIOSYKVBBWRRI-UHFFFAOYSA-N 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000001502 supplementing effect Effects 0.000 description 1
Images
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a flowmeter calibrating device, which comprises a bracket, wherein the bracket comprises a base and a supporting rod, a butterfly clip is fixed on the supporting rod, two ends of the butterfly clip are respectively used for fixing an acid buret and a liquid-transferring graduated tube, a connecting section between the acid buret and the liquid-transferring graduated tube and an extending section at two ends of the acid buret and the liquid-transferring graduated tube are respectively rubber tubes, two tube-dividing adapter heads are respectively arranged on the extending sections at two ends of the acid buret and the liquid-transferring graduated tube, one rubber tube of the acid buret is connected with a flowmeter, a tube clamp is arranged at the other rubber tube, one rubber tube of the liquid-transferring graduated tube is connected with an injector, a tube clamp is arranged at the other rubber tube, and the injector and each rubber tube are respectively fixed with the supporting rod through the clamp. The utility model discloses an use the gaseous discontinuity of syringe simulation material reaction in-process production, adopt the gas-liquid displacement's method to equivalent the gas quantity value of flowmeter record into the actual value that can read the value in the buret, calibrating device has very big repeatability, can carry out many times school value comparison.
Description
Technical Field
The utility model relates to the field of gas flow detection, in particular to a flowmeter calibrating device.
Background
Currently, the flow measurement of gas is widely applied to the modern scientific and engineering fields of anaerobic fermentation, petroleum industry, plastic degradation and the like. Along with the expansion of application fields and the progress of scientific technology, urgent demands are also put forward on unsteady small flow measurement. Unsteady dynamic flow refers to the intermittent increase in the production of gas that exhibits an unsteady state during the production of gas. Existing flowmeters, such as wet gas flowmeters, require consideration of whether the cavity metering of the flowmeter is accurate or not due to the discontinuous instability of the gas output during the measurement of the dynamic flow of the gas due to the long test period. If the single metering cavity value is inaccurate and the metering period response time is long, the data measured by the flowmeter is distorted, so that the measurement or monitoring of the flow is not facilitated, and the reliability and safety of the system operation are further affected. Thus, early calibration of the flowmeter is a necessary prerequisite for the application of the flowmeter to gas measurement.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a flowmeter calibrating device, which is characterized in that the discontinuity of gas generated in the material reaction process is simulated by using an injector, the gas quantity value recorded by the flowmeter is equivalent to the actual value which can be read in a burette by adopting a gas-liquid replacement method, the whole structure is simple and clear, the calibrating device has great repeatability, and multiple calibration comparison can be carried out.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a flowmeter calibrating device, includes the support, the support includes base and bracing piece, be fixed with the butterfly clamp on the bracing piece, the butterfly clamp both ends are used for fixed sour buret and pipetting scale pipe respectively, the linkage segment between sour buret and the pipetting scale pipe and the extension at both ends are the rubber tube, all be equipped with a two-pipe adapter on the extension at sour buret and pipetting scale pipe both ends, a rubber of sour buret is connected with the flowmeter, and another rubber is in a tub department and is equipped with the pipe clamp, a rubber of pipetting scale pipe is in a tub and is connected with the syringe, and another rubber is in a tub department and is equipped with the pipe clamp, syringe and each rubber are in a tub and are all fixed through anchor clamps and bracing piece.
As a further improvement, a rubber branch pipe is arranged on a rubber pipe connected between the acid burette and the pipetting scale pipe, and a pipe clamp is arranged at the rubber branch pipe.
Preferably, the minimum scale value of the syringe is 1ml, and the full load capacity is 150ml.
Preferably, the minimum scale value of the acid burette is 0.2ml, and the maximum volume is 100-150 ml.
Preferably, the minimum scale value of the pipetting scale tube is 0.2ml, and the maximum volume of the pipetting scale tube is larger than that of the acid burette.
As a further improvement, sealing rings are arranged at the joints of the acid burette, the pipetting scale tube and the rubber tube.
The port seal of the utility model adopts the sealing fixation of the pagoda interface with the addition of the difluoro rubber ring, which can prevent the loss of liquid and gas in the using process of the device. The continuous usability of the device can be ensured after the pipe frame is sealed through the two-in-one adapter, when the calibration of the flowmeter of the next batch is started, the device can be restored by opening the pipe clamps at different positions, and the device does not need to be disassembled and assembled again.
The method has the advantages that the discontinuity of gas is generated in the material reaction process by using the injector, the gas quantity value recorded by the flowmeter is equivalent to the actual value which can be read in the burette by adopting the gas-liquid replacement method, namely, the cavity value corresponding to the primary gas lifting recorded by the volumetric gas flowmeter is obtained by adopting the gas-liquid replacement method, and convenience is provided for real-time calibration of the flowmeter. The whole structure is simple and clear, and the calibrating device has great repeatability, and can carry out multiple calibration comparison.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present utility model.
Fig. 2 is an enlarged view of a in fig. 1 according to an embodiment of the present utility model.
1, a base; 2. butterfly clips; 3. a clamp; 4. an acid burette; 5. a pipetting scale tube; 6. a rubber tube; 7. a syringe; 8. a pipe clamp; 9. a support rod; 10. a two-pipe adapter.
The utility model is further described below with reference to the accompanying drawings.
Detailed Description
As shown in fig. 1 and 2, the flowmeter calibrating device comprises a bracket, wherein the bracket comprises a base 1 and a supporting rod 9, a butterfly clip 2 is fixed on the supporting rod 9, two ends of the butterfly clip 2 are respectively used for fixing an acid buret 4 and a pipetting scale tube 5, the minimum scale value of the acid buret 4 is 0.2ml, and the maximum volume is 100-150 ml. The minimum scale value of the pipetting scale tube 5 is 0.2ml, and the maximum volume of the pipetting scale tube is larger than that of the acid burette 4. The connecting section between the acid burette 4 and the pipetting scale tube 5 and the extending sections at the two ends are rubber tubes 6, and the rubber tubes 6 are made of materials with low permeability to the gas to be measured and the liquid to be contained, so that the loss of gas and liquid in the using process is prevented. The acid buret 4 and the extension section at two ends of the pipetting scale tube 5 are respectively provided with a two-pipe adapter 10, one rubber branch tube of the acid buret 4 is connected with the flowmeter, the other rubber branch tube is provided with a tube clamp 8, one rubber branch tube of the pipetting scale tube 5 is connected with the injector 7, the other rubber branch tube is provided with the tube clamp 8, the minimum scale value of the injector 7 is 1ml, and the full-load capacity is 150ml. The injector 7 and each rubber branch pipe are fixed with the supporting rod 9 through the clamp 3. The rubber tube 6 connected between the acid burette 4 and the pipetting scale tube 5 is provided with a rubber branch tube, the rubber branch tube is provided with a tube clamp 8, and the rubber branch tube is used for supplementing liquid when the liquid level between the acid burette 4 and the pipetting scale tube 5 is unbalanced and can also be used for replacing liquid when needed. Sealing rings are arranged at the joints of the acid burette 4, the pipetting scale tube 5 and the rubber tube 6.
During actual use, the piston of the injector 7 is pulled to the maximum value of the container, the injector is filled with air or gas practically measured by the flowmeter, all the pipe clamps 8 are closed, the liquid-transferring scale pipe 5 on the left is filled with water to the maximum scale value, whether the maximum scale value of the liquid level in the liquid-transferring scale pipe 5 is on the same horizontal plane with the minimum scale value in the acid buret 4 is calibrated again, and then the air inlet of the flowmeter to be measured is connected. After connection is completed, the injector is pushed as slowly as possible to simulate gas generation, the generated gas enters the upper end of the pipetting scale tube 5 through the rubber tube 6, and because the tube is filled with water, the water pressure in the tube can be sent to the right acid buret 4 when the gas enters, so that the change of the gas quantity can be known through the change of the liquid level, after the gas is slowly injected, the record condition of the flowmeter is observed, when the flowmeter generates the first counting, the pushing of the injector is stopped immediately, and the value x on the acid buret at the moment is recorded 1 Then the gas in the pushing injection syringe is continuously injected into the tube, and the injection is stopped to record the value x when the counting is performed again 2 Then x 1 - x 2 The difference value of (2) is the value of the flowmeter actually recorded once, and a plurality of groups of cavity values can be obtained by repeating the process for several times.
After calibration is completed or the measuring range is too small, the connecting ports of the rubber branch pipe and the calibrated flowmeter can be disconnected firstly, then the pipe clamp 8 positioned between the pipetting scale pipe 5 and the injector 7 is opened, the air pressure in the two pipes reaches balance again, the device is reset, then the injector 7 is pulled to the maximum cavity value, the pipe clamp 8 is closed, and the next test is carried out.
Claims (6)
1. A flowmeter calibration device comprising a support, characterized in that: the bracket comprises a base (1) and a supporting rod (9), wherein a butterfly clamp (2) is fixed on the supporting rod (9), two ends of the butterfly clamp (2) are respectively used for fixing an acid buret (4) and a pipetting scale tube (5), a connecting section between the acid buret (4) and the pipetting scale tube (5) and an extending section at two ends are rubber tubes (6), two tube-separating adapter joints (10) are respectively arranged on the extending sections at two ends of the acid buret (4) and the pipetting scale tube (5), one rubber tube of the acid buret (4) is connected with a flowmeter, a tube clamp (8) is arranged at the other rubber tube-separating position, one rubber tube of the pipetting scale tube (5) is connected with an injector (7), and a tube clamp (8) is arranged at the other rubber tube-separating position; the injector (7) and each rubber branch pipe are fixed with the supporting rod (9) through the clamp (3).
2. A flow meter calibration unit as defined in claim 1, wherein: a rubber branch pipe is arranged on a rubber pipe (6) connected between the acid burette (4) and the pipetting scale pipe (5), and a pipe clamp (8) is arranged at the rubber branch pipe.
3. A flow meter calibration unit as defined in claim 1, wherein: the minimum scale value of the syringe (7) is 1ml, and the full-load capacity is 150ml.
4. A flow meter calibration unit as defined in claim 1, wherein: the minimum scale value of the acid burette (4) is 0.2ml, and the maximum volume is 100-150 ml.
5. A flow meter calibration unit as defined in claim 1, wherein: the minimum scale value of the pipetting scale tube (5) is 0.2ml, and the maximum volume of the pipetting scale tube is larger than that of the acid burette (4).
6. A flow meter calibration unit as defined in claim 1, wherein: the joints of the acid burette (4) and the pipetting scale tube (5) and the rubber tube (6) are respectively provided with a sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067079.4U CN219084202U (en) | 2023-01-10 | 2023-01-10 | Flowmeter calibrating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320067079.4U CN219084202U (en) | 2023-01-10 | 2023-01-10 | Flowmeter calibrating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219084202U true CN219084202U (en) | 2023-05-26 |
Family
ID=86400583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320067079.4U Active CN219084202U (en) | 2023-01-10 | 2023-01-10 | Flowmeter calibrating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219084202U (en) |
-
2023
- 2023-01-10 CN CN202320067079.4U patent/CN219084202U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107328897A (en) | A kind of slip casting plugging tester and method for simulating karst water burst | |
| CN103471686A (en) | Gas flow standard device and application method thereof | |
| CN110319891B (en) | High-precision wide-range integrated differential pressure type flow measuring device | |
| CN108061592B (en) | A method of for half grout sleeve standard grout amount of quick field calibration reinforcing bar | |
| WO2023193514A1 (en) | Desorbed gas amount testing device and measuring method | |
| CN106950150A (en) | Liquid density measurement device and method | |
| CN105928832A (en) | Capillary viscosity measuring instrument and fluid viscosity measuring method | |
| CN104766513B (en) | A kind of pressure signal flow measurement device and flow-measuring method | |
| CN106935125A (en) | Fluid flow resistance and flow measurement self assembly experimental provision and its application method | |
| CN219084202U (en) | Flowmeter calibrating device | |
| CN208588452U (en) | Traffic alignment device | |
| CN208283230U (en) | It is a kind of for measuring the device of compact rock core air water two-phase relative permeability | |
| CN107202743A (en) | A kind of Multi-example Static Adsorption test device and its method of testing | |
| CN110285837B (en) | Differential pressure type static level calibrating device and calibrating method | |
| CN208721532U (en) | A kind of test device of biphase gas and liquid flow flow behavior | |
| CN207923654U (en) | High temperature and pressure low velocity gas micro-pipe device for measuring viscosity | |
| CN206573427U (en) | Liquid density measurement device | |
| CN204680275U (en) | A kind of pressure signal flow measurement device | |
| CN114252119A (en) | High-precision ultralow-flow bubble flow instrument and flow calibration method | |
| CN208921244U (en) | A kind of flowmeter calibrating installation | |
| CN108627437A (en) | Gas micro measurement device and method under experiment reservoir conditions | |
| CN2114159U (en) | Multi-capillary viscometer | |
| CN111693106A (en) | High-pressure high-precision extremely-low dynamic flow measurement test device | |
| CN220120650U (en) | Visual CO 2 Imbibition system | |
| CN217716587U (en) | Liquid quality flowmeter testing arrangement |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: Room 1309, Building D, Science and Technology Innovation Center, No. 28 Shuangfu Road, Haichang Street, Haining City, Jiaxing City, Zhejiang Province, 314400 (self declared) Patentee after: Bipu Instrument (Zhejiang) Co.,Ltd. Country or region after: China Address before: 314400 room 1309, block D, science and innovation center, No. 28, Shuangfu Road, Haining Economic Development Zone, Jiaxing City, Zhejiang Province Patentee before: Bipu instrument (Haining) Co.,Ltd. Country or region before: China |