CN2777507Y - Wilba flow-meter - Google Patents
Wilba flow-meter Download PDFInfo
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- CN2777507Y CN2777507Y CN 200520001191 CN200520001191U CN2777507Y CN 2777507 Y CN2777507 Y CN 2777507Y CN 200520001191 CN200520001191 CN 200520001191 CN 200520001191 U CN200520001191 U CN 200520001191U CN 2777507 Y CN2777507 Y CN 2777507Y
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- pressure
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- weir
- flowmeter
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Abstract
The utility model relates to a Wilba flowmeter which comprises a flow quantity probe 12, a differential pressure transmitter 2 and a displaying adjustor 1, wherein the flow quantity probe 12 is a Wilba flow quantity probe for uniform speed and the probe 12 is a probe with double cavity pipes. A row of high-pressure taking holes 24 are arranged on one side of a high-pressure cavity 25 of the probe, and two rows of low-pressure taking holes 27 are arranged on one side of a low-pressure cavity 26 of the probe. A long shaft of a cross section of the probe 12 is 15-50 mm, a short shaft of the cross section of the probe 12 is 10-40 mm, and the diameter of the pipe cavity is 4-10 mm. The high-pressure taking holes 24 are provided with 2-4 pairs, and the diameter of each hole is 4-8 mm; the low-pressure taking holes 26 are provided with 2-4 pairs, and the diameter of each hole is 3-6 mm; the length of the probe 12 is 12-12000 mm. The insertion depth of the probe is equal to the diameter of a pipeline according to the size of the diameter of the pipeline. A spring locking device is arranged on the upper part of the Wilba flow quantity probe for uniform speed, and the Wilba flow quantity probe 12 for uniform speed is connected with a technology pipeline through a welding flange 11 to be tightly locked by the spring locking device 10. The utility model can be used for measuring flow quantity of gas, liquid, steam, etc., which are transported by pipelines, and is suitable for circular pipes or square pipes of various sizes, high-pressure high-temperature occasions and fluoride bearing occasions.
Description
Technical field
The utility model relates to flow measurement device, especially a kind of plug-in type average rate Weir crust flow flowmeter.
Background technology
Measuring channel carries the flow of gas, liquid and steam to need the use traffic meter.The flow detection equipment that uses has all speed sensors such as Annubar pipe, bourdon's tube, orifice flowmeter, turbine, vortex street, electromagnetic flowmeter at present.These flowmeters measuring accuracy, repeatability, reliability and structural strength, withstand voltage, heatproof, anticorrosion aspect and adapt to the medium kind, all there is certain problem in caliber size aspect.
Summary of the invention
The purpose of this utility model is the problem that exists in measuring accuracy, structural strength, withstand voltage, heatproof, aspect anticorrosion at the flow detection equipment of present use, provide that a kind of measuring accuracy height, structural strength are good, withstand voltage, heatproof, anticorrosion, adapt to the wide Weir crust flowmeter of medium.
The measuring principle of Weir crust flowmeter as shown in Figure 1.Fig. 1 shows a process pipe, and shows flow rate of fluid distribution plan 8 and mean flow rate 7 in the process pipe.One Gen Weierba probe is inserted pipeline, and its front end one row's pressure port flows to the sensing high pressure over against fluid, and its rear portion two rows get the hole and press sensing low pressure.High pressure and low pressure import differential pressure transmitter respectively and measure differential pressure.When fluid flows through probe, produce a high pressure distributive province 6 at the probe leading section, produce a low pressure distributive province 5 at its rear portion.On the probe pipe, many pressure port is measured high pressure 4 and low pressure 3 respectively, import differential pressure transmitter 2 and measure differential pressure between the high and low pressure, this differential pressure truly reflects the average velocity of fluid.Mean flow rate multiply by the long-pending flow that just obtains of pipeline section, and by showing that regulator 1 shows flow and regulates flow.
Weir crust flowmeter described in the utility model comprises flow probe, differential pressure transmitter, demonstration regulator.Flow probe is a Weir crust uniform speed flow probe.Weir crust uniform speed flow probe is a double lumen tube probe, and a tube chamber is a high pressure chest, and a tube chamber is a low-pressure cavity.Probe is anterior, and promptly high pressure chest one side is provided with row's high pressure pressure port.The probe rear portion, promptly low-pressure cavity one side is provided with two row's low pressure pressure ports.The xsect of probe is the streamlined of warhead shape.
The probe xsect be 15-50mm, minor axis is 10-40mm, lumen diameter is 4-10mm.
The high pressure pressure port is that 2-4 is right, and the aperture is 4-8mm; The low pressure pressure port is that 2-4 is right, and the aperture is 3-6mm.
The length of probe is 12-12000mm.
Weir crust uniform speed flow probe top is provided with spring barrel.Spring barrel comprises big nut, filler seat, lower cover, upper press cover, plain cushion, spring, big nut, screw rod, nut and screw.Big nut, filler seat, lower cover, plain cushion, spring, upper press cover from bottom to top are sleeved on the top of probe successively.Between lower cover and filler seat filler is housed; Spring is loaded between upper press cover and plain cushion.Spring barrel is locked by big nut.
Weir crust uniform speed flow probe is connected with process pipe by welding flange and locks with spring barrel.
Weir crust flowmeter described in the utility model can be used for the flow of gas, liquid and the steam etc. of measuring channel conveying, is suitable for pipe or the square tube and the high pressure-temperature of various sizes and contains rotten occasion.
Description of drawings
Fig. 1 is the utility model Weir crust flowmeter survey principle schematic;
Fig. 2 is that probe is connected with process pipe and the locking device synoptic diagram;
Fig. 3 is the structural map of spring barrel;
Fig. 4 is a probe cross section enlarged drawing.
Embodiment
As shown in Figure 1-Figure 3, Weir crust flowmeter described in the utility model comprises flow probe 12, differential pressure transmitter 2, shows regulator 1.Flow probe 12 is Weir crust uniform speed flow probe.As shown in Figure 4, Weir crust uniform speed flow probe 12 is a double lumen tube probe, and a tube chamber is that 25, one tube chambers of high pressure chest are low-pressure cavity 26.Probe is anterior, and promptly high pressure chest 25 1 sides are provided with row's high pressure pressure port 24.The probe rear portion, promptly low-pressure cavity 26 1 sides are provided with two row's low pressure pressure ports 27.To pop one's head in and insert pipeline, pressure hole is over against the flow direction of fluid, and insertion depth equals pipe diameter.Pressure hole and low pressure hole measure hydrodynamic pressure, import differential pressure transmitter high and low voltage chamber respectively, and measure differential pressure (Δ P) and convert normalized current signal (4～20mADC) to, export flow integrator to, carry out evolution multiplication and division, plus and minus calculation, demonstrate the instantaneous delivery and the parameter such as accumulation total flow etc. of detected fluid at last, realize that flow detects automatically.The xsect of probe 12 is the streamlined of warhead shape.
Differential pressure transmitter 2, demonstration regulator 1 can adopt known technology.
Probe 12 xsect is 15-50mm, and minor axis is 10-40mm, and lumen diameter is that 4-10mm. probe 12 adopts extruding or machine work to make, and material is used 316 stainless steels, 1Crl8Ni9Ti stainless steel always or other contain full anti-corrosion material.
High pressure pressure port 24 is that 2-4 is right, and the aperture is 4-8mm; Low pressure pressure port 26 is that 2-4 is right, and the aperture is 3-6mm.
The length of probe 12 is 12-12000mm.Decide with the pipe diameter size, the probe insertion depth equals pipe diameter.
The intensity height of probe 12, withstand voltage is 0-25Mpa, extra-high-speed can reach 40Mpa, heatproof is-100-450 ℃, and extra-high-speed reaches 550 ℃, and the air, water vapour, coal gas that are suitable for measuring the full packages uniflux are so that the little liquid with 8cp of viscosity, and be suitable for high pressure, high temperature and contain rotten occasion, safe and reliable.
Weir crust uniform speed flow probe top is provided with spring barrel.Spring barrel comprises big nut 23, filler seat 21, lower cover 20, upper press cover 18, plain cushion 14, spring 19, screw rod 15, nut 16 and screw 13.Big nut 23, filler seat 21, lower cover 20, plain cushion 14, spring 19, upper press cover 18 from bottom to top are sleeved on the top of probe 12 successively.21 of lower cover 20 and filler seats are equipped with filler 22; Spring 19 is loaded on 14 of upper press cover 18 and plain cushions.Spring barrel is by big nut 23 lockings.
Weir crust uniform speed flow probe 12 is connected with process pipe by welding flange 11 and locks with spring barrel 10.
The utility model Weir crust flowmeter compared with prior art has following major advantage:
1. Weir clings to design, processing and the application of probe, has embodied a concentrated reflection of the newest research results of uniform speed flow measuring technique; In measuring accuracy, repeatability and reliability aspect, structural strength, withstand voltage, heatproof, anticorrosion aspect: adapt to medium kind and caliber big or small aspect, all bring up to a brand-new height, be better than uniform speed flow sensors such as Annubar pipe, bourdon's tube greatly, blocking-proof result is remarkable.
2. compare with orifice flowmeter, Weir crust probe has the superiority of plug-in type flow meter, and is easy to loading and unloading, and there is not the problem of orifice plate perforate sharp-edged blunt in simple structure, can keep measuring accuracy for a long time.The expendable pressure loss of probe only is the 2-4% of orifice plate, can save a large amount of operating costs, more demonstrates superiority in the flow measurement of large pipeline.
3. compare with other flowmeter such as vortex street, turbine, electromagnetic flowmeter, they only detect certain some flow velocity of fluid in the pipeline, can not measure mean flow rate, calculate a flow by a flow velocity, and precision is low, poor reliability.Weir crust probe is provided with and many pressure point is distributed in fluid velocity profile, can measure the average velocity of fluid, accurately and reliably.
4. Weir clings to the probe wide adaptability, can be used for the gas and the liquid of normal temperature and pressure aspect medium, also can be used for gas, steam and the coal gas etc. of high temperature, low temperature.Aspect process pipe, little, in, large pipeline all can adapt to.The adaptable occasion of orifice flowmeter, Weir crust probe also can adapt to.
Claims (6)
1. a Weir clings to flowmeter, comprise flow probe, differential pressure transmitter, demonstration regulator, it is characterized in that: flow probe is a Weir crust uniform speed flow probe, and Weir crust uniform speed flow probe is a double lumen tube probe, and a tube chamber is a high pressure chest, a tube chamber is a low-pressure cavity, probe is anterior, and promptly high pressure chest one side is provided with row's high pressure pressure port, probe rear portion, be that low-pressure cavity one side is provided with two row's low pressure pressure ports, the xsect of probe is the streamlined of warhead shape.
2. by the described Weir crust of claim 1 flowmeter, it is characterized in that: the major axis of the xsect of probe is 15-50mm, and minor axis is 10-40mm, and lumen diameter is 4-10mm.
3. by the described Weir crust of claim 1 flowmeter, it is characterized in that: the high pressure pressure port is that 2-4 is right, and the aperture is 4-8mm; The low pressure pressure port is that 2-4 is right, and the aperture is 3-6mm.
4. by the described Weir crust of claim 1 flowmeter, it is characterized in that: the length of probe is 12-12000mm.
5. by the described Weir crust of claim 1 flowmeter, it is characterized in that: Weir crust uniform speed flow probe top is provided with spring barrel; Spring barrel comprises big nut, filler seat, lower cover, upper press cover, plain cushion, spring, big nut and screw rod; Big nut, filler seat, lower cover, plain cushion, spring, upper press cover from bottom to top are sleeved on the top of probe successively; Between lower cover and filler seat filler is housed, spring is loaded between upper press cover and plain cushion.
6. by the described Weir crust of claim 1 flowmeter, it is characterized in that: probe material 316 stainless steels, 1Cr18Ni9Ti stainless steel or anti-corrosion material commonly used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001191 CN2777507Y (en) | 2005-01-26 | 2005-01-26 | Wilba flow-meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520001191 CN2777507Y (en) | 2005-01-26 | 2005-01-26 | Wilba flow-meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2777507Y true CN2777507Y (en) | 2006-05-03 |
Family
ID=36744891
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520001191 Expired - Lifetime CN2777507Y (en) | 2005-01-26 | 2005-01-26 | Wilba flow-meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2777507Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252715A (en) * | 2011-04-15 | 2011-11-23 | 王荣虎 | Europa sensor and flow measurement control system |
| CN105806423A (en) * | 2016-03-09 | 2016-07-27 | 宁波钢铁有限公司 | Large-diameter low-pressure fouling gas flow measurement throttling device |
| CN105841756A (en) * | 2016-03-21 | 2016-08-10 | 上海晓秋自动化工程有限公司 | Pressure difference flow detection head and application thereof |
| CN106764230A (en) * | 2016-12-16 | 2017-05-31 | 有研亿金新材料有限公司 | A kind of double lumen tube interface unit and its preparation, application method |
-
2005
- 2005-01-26 CN CN 200520001191 patent/CN2777507Y/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102252715A (en) * | 2011-04-15 | 2011-11-23 | 王荣虎 | Europa sensor and flow measurement control system |
| CN105806423A (en) * | 2016-03-09 | 2016-07-27 | 宁波钢铁有限公司 | Large-diameter low-pressure fouling gas flow measurement throttling device |
| CN105841756A (en) * | 2016-03-21 | 2016-08-10 | 上海晓秋自动化工程有限公司 | Pressure difference flow detection head and application thereof |
| CN106764230A (en) * | 2016-12-16 | 2017-05-31 | 有研亿金新材料有限公司 | A kind of double lumen tube interface unit and its preparation, application method |
| CN106764230B (en) * | 2016-12-16 | 2018-08-03 | 有研亿金新材料有限公司 | A kind of double lumen tube interface unit and its application method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150126 Granted publication date: 20060503 |