CN201514262U - On-line scaling and calibrating flowmeter - Google Patents
On-line scaling and calibrating flowmeter Download PDFInfo
- Publication number
- CN201514262U CN201514262U CN2009202277367U CN200920227736U CN201514262U CN 201514262 U CN201514262 U CN 201514262U CN 2009202277367 U CN2009202277367 U CN 2009202277367U CN 200920227736 U CN200920227736 U CN 200920227736U CN 201514262 U CN201514262 U CN 201514262U
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- China
- Prior art keywords
- flowmeter
- calibration
- pipe section
- straight pipe
- straight length
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- Expired - Lifetime
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Abstract
The utility model relates to an on-line scaling and calibrating flowmeter, which belongs to the technical field of on-line calibration and detection of flowmeters. The on-line scaling and calibrating flowmeter comprises a flowmeter and a straight pipe section, wherein the straight pipe section is connected to an inlet or an outlet end of the flowmeter; the length of the straight pipe section is larger than or equal to three times of the nominal bore of the inlet or the outlet of the flowmeter; the inside diameter of the straight pipe section is equal to that of the inlet or outlet end of the flowmeter; and the connection structure of the straight pipe section and the flowmeter can adopt various forms, generally adopt the integral-type connection or the flange-type connection. By connecting the straight pipe section to the inlet or the outlet end to clamp ultrasonic instrument used for calibration, the scaling and calibration of the flowmeter can be carried out on site, so that when the current flowmeter needs to be scaled, the time waste, the interruption of continuous water supply and drainage works and the influence to production and safety which are caused by dismounting the flowmeter are avoided, thereby greatly saving detection and calibration time of the flowmeter. Therefore, the on-line scaling and calibrating flowmeter is particularly suitable for piping with worse fluid mediums, such as oil well sewage, paper mill drainage and the like.
Description
Technical field:
But the utility model relates to the flowmeter of a kind of on-line proving and calibration, belongs to flowmeter on-line proving detection technique field.
Background technology:
Pipeline flowmeter is the instrument of instantaneous delivery or total amount in the measuring channel; For the precision of dependable flow meter, not only want regularly the flowmeter in using to be detected, demarcates, and also will demarcate, calibrate the flowmeter after the maintenance.At present proving flowmeter all is to adopt flowmeter is pulled down from pipeline, take demarcate on the flow calibration device after, refill on the pipeline.This demarcation mode will spend a large amount of time when the demolition, installation flowmeter, and will interrupt the continuous in row's work of fluid, gives and produces and all bring safely bigger influence.
Summary of the invention
The purpose of this utility model is, but a kind of flowmeter of on-line proving and the calibration with the standard straight pipeline section is provided, and makes flowmeter can carry out conventional sense, demarcation at the scene, can calibrate at the scene or correction factor again; To pull down from pipeline to solve existing flow meter calibration, take demarcate on the caliberating device after, refill on the pipeline, spend a large amount of time, give the problem of producing and all bringing considerable influence safely.
The utility model is to realize above-mentioned purpose by following technical solution:
But the flowmeter of a kind of on-line proving and calibration, it is made of flowmeter and straight length, it is characterized in that: the import or export end of flowmeter is connected with a straight length, the length of straight length is not less than 3 times of flowmeter nominal bore, and the internal diameter of straight length equates with the internal diameter of the import or export end of flowmeter.
The import or export end of described straight length and flowmeter is the monoblock type syndeton.
The import or export end of described straight length and flowmeter is the welded type syndeton.
The import or export end of described straight length and flowmeter is the clamping hoop type syndeton.
The import or export end of described straight length and flowmeter is the flange form syndeton.
The import or export end of described straight length and flowmeter is the screw-type syndeton.
The utility model beneficial effect compared with prior art is:
But be somebody's turn to do the straight length that is connected on the import or export end of flowmeter by flowmeter of on-line proving and calibration, the pair of electrodes of the ultrasonic instrument that clamping is used to demarcate, demarcation, the calibration of flowmeter can onlinely at the scene be carried out, saved the workload of dismounting flowmeter, avoid the influence to producing and bringing safely thus, saved the time that flowmeter detects, demarcates widely; Be specially adapted to that line pressure is big, fluid media (medium) is relatively poor and require the occasion of continuous working, as using in the pipings such as oil well sewage, paper mill draining.
Description of drawings:
But Fig. 1 is the structural representation that the flowmeter of the flowmeter of on-line proving and calibration is connected with the straight length monoblock type;
But Fig. 2 is the structural representation that the flowmeter of the flowmeter of on-line proving and calibration is connected with straight length employing steel ring flange;
Fig. 3 connects the structural representation that adopts the sealing gasket sealing for flange;
Fig. 4 adopts the structural representation of steel ring sealing for clamp connection.
Among the figure: 1, flowmeter, 2, straight length, 3, flange, 4, sealing gasket, 5, steel ring.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
But the flowmeter that is somebody's turn to do on-line proving and calibration is made of flowmeter 1 and straight length 2, straight length 2 is connected the import or export end of flowmeter 1, the length of straight length 2 should be not less than 3 times of nominal bore of flowmeter 1, and the internal diameter of straight length 2 should equate (referring to accompanying drawing 1) with the internal diameter of the import or export end of flowmeter 1.Straight length 2 can adopt various ways with the syndeton of the import or export end of flowmeter 1, generally adopts the flange form syndeton (referring to accompanying drawing 1-2) of monoblock type syndeton or employing flange 3.When adopting the flange form syndeton, should adopt the form (referring to accompanying drawing 3) of sealing gasket 4 sealings.Also can adopt the welded type syndeton, or the screw-type syndeton, or the clamping hoop type syndeton.When adopting the structure of screw-type connection, adopt the form of sealing gasket 4 sealings; When adopting the structure of clamping hoop type connection, adopt the form (referring to accompanying drawing 4) of steel ring 5 sealings.Described straight length 2 penetrates for adopting by ultrasonic wave energy, and evenly matter is close, and can the corrosion-resistant stainless steel, the standard profiled member that draws of the wherein a kind of material in the materials such as aluminium, copper, fiberglass, pvc pipe material.
But the flowmeter course of work of being somebody's turn to do on-line proving and calibration is, with parameters such as external diameter, wall thickness, material and the fluid media (medium) type definite installation dimension of ultrasound wave calibrating instrument by pressing straight length 2, two probes are fixed on the straight length 2 accurately, the flowmeter 1 that writes down according to identical a period of time and the accumulated value of ultrasonic flow meter are determined the flow accumulation coefficient again, and flowmeter 1 is carried out on-line proving and adjusting and measuring on line gets final product.
Claims (6)
1. but the flowmeter of on-line proving and calibration, it is made of flowmeter (1) and straight length (2), it is characterized in that: the import or export end of flowmeter (1) is connected with a straight length (2), the length of straight length (2) is not less than 3 times of flowmeter (1) nominal bore, and the internal diameter of straight length (2) equates with the internal diameter of the import or export end of flowmeter (1).
2. but the flowmeter of on-line proving according to claim 1 and calibration is characterized in that: described straight length (2) is the monoblock type syndeton with the import or export end of flowmeter (1).
3. but the flowmeter of on-line proving according to claim 1 and calibration is characterized in that: described straight length (2) is the welded type syndeton with the import or export end of flowmeter (1).
4. but the flowmeter of on-line proving according to claim 1 and calibration is characterized in that: described straight length (2) is the clamping hoop type syndeton with the import or export end of flowmeter (1).
5. but the flowmeter of on-line proving according to claim 1 and calibration is characterized in that: described straight length (2) is the flange form syndeton with the import or export end of flowmeter (1).
6. but the flowmeter of on-line proving according to claim 1 and calibration is characterized in that: described straight length (2) is the screw-type syndeton with the import or export end of flowmeter (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202277367U CN201514262U (en) | 2009-08-28 | 2009-08-28 | On-line scaling and calibrating flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202277367U CN201514262U (en) | 2009-08-28 | 2009-08-28 | On-line scaling and calibrating flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201514262U true CN201514262U (en) | 2010-06-23 |
Family
ID=42485674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202277367U Expired - Lifetime CN201514262U (en) | 2009-08-28 | 2009-08-28 | On-line scaling and calibrating flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201514262U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116667A (en) * | 2011-01-14 | 2011-07-06 | 重庆工业自动化仪表研究所 | Large-aperture gas flow calibration device capable of providing two flow fields |
| CN103398748A (en) * | 2013-07-25 | 2013-11-20 | 浙江省计量科学研究院 | Self-calibrating water-intake metering unit based on composite electromagnetic and ultrasonic principle |
| CN103674188A (en) * | 2012-09-04 | 2014-03-26 | 中国石油天然气股份有限公司 | On-line flow calibration method for oilfield flooding system |
| CN105587307A (en) * | 2016-02-01 | 2016-05-18 | 荆州市明德科技有限公司 | Remote on-line monitoring system for oil field acidification |
-
2009
- 2009-08-28 CN CN2009202277367U patent/CN201514262U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116667A (en) * | 2011-01-14 | 2011-07-06 | 重庆工业自动化仪表研究所 | Large-aperture gas flow calibration device capable of providing two flow fields |
| CN103674188A (en) * | 2012-09-04 | 2014-03-26 | 中国石油天然气股份有限公司 | On-line flow calibration method for oilfield flooding system |
| CN103398748A (en) * | 2013-07-25 | 2013-11-20 | 浙江省计量科学研究院 | Self-calibrating water-intake metering unit based on composite electromagnetic and ultrasonic principle |
| CN103398748B (en) * | 2013-07-25 | 2016-02-24 | 浙江省计量科学研究院 | A kind of self-calibration water metering equipment based on electromagnetic acoustic composite principle |
| CN105587307A (en) * | 2016-02-01 | 2016-05-18 | 荆州市明德科技有限公司 | Remote on-line monitoring system for oil field acidification |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100623 |
|
| CX01 | Expiry of patent term |