CN202757650U - Steam screw-in vortex flowmeter - Google Patents
Steam screw-in vortex flowmeter Download PDFInfo
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- CN202757650U CN202757650U CN 201220468157 CN201220468157U CN202757650U CN 202757650 U CN202757650 U CN 202757650U CN 201220468157 CN201220468157 CN 201220468157 CN 201220468157 U CN201220468157 U CN 201220468157U CN 202757650 U CN202757650 U CN 202757650U
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Abstract
The utility model belongs to the technical field of gas flowmeters, and particularly relates to a screw-in vortex flowermeter for steam flow quantity measurement. The steam screw-in vortex flowermeter comprises a shell, the inside of the shell is of a venture tube structure, the start end of the shell is provided with a vortex generating body, the final end of the shell is provided with a vortex removing device, the side wall of the shell is provided with a pressure taking connection port, a temperature measuring connection port and a flow measuring port, a temperature sensor is arranged inside the temperature measuring connection port, and a piezoelectric sensor resistant to high temperature is arranged inside the flow measuring port. The steam screw-in vortex flowermeter further comprises an electric integrating instrument which is connected with the outer wall of the shell through a heat dissipation supporting rod made of metal materials, the surface of the heat dissipation supporting rod is provided with heat dissipation pieces, the electric integrating instrument is further provided with a pressure sensor which is connected with the pressure taking connection port through a heat dissipation pressure taking pipe, and the pressure sensor, the temperature sensor and the piezoelectric sensor are all connected with the signal input end of the electric integrating instrument. The steam screw-in vortex flowermeter has high measuring accuracy and strong anti-seismic performance, and is low in production and installation cost.
Description
Technical field
The utility model belongs to the gas meter equipment technical field, relates in particular to a kind of precession vortex formula flowmeter for the vapor flow rate measurement.
Background technology
At present, generally adopt in the world vortex shedding flow meter as Trade Measures and the measure of production of steam, because the comparison of seismic resistant properties of vortex shedding flow meter is poor, often the vibrations of steam pipeline are relatively large, occur so often occur the inaccurate situation of metering in the metering process.Just because of this, on the pipeline of vapour measurement, often install additional such as devices such as buffering corrugated tubes, utilize corrugated tube to reduce pipe vibration to the impact of vortex shedding flow meter.Give in the actual production and bring inconvenience, increased many unnecessary costs.
The utility model content
The utility model provides a kind of vortex precession flowmeter for the vapor flow rate measurement for solving the technical matters that exists in the known technology, has higher measuring accuracy and stronger anti-seismic performance, reduces and produces and installation cost.
The technical scheme that the utility model is taked for the technical matters that exists in the solution known technology is: the steam vortex precession flowmeter comprises that inside is the housing of venturi tube structure, is provided with swirl generating body, is provided with despinner in its terminal at its top; Sidewall at described housing is provided with pressure interface, temperature survey interface and flow measurement interface, is provided with temperature sensor in described temperature survey interface, is provided with resistant to elevated temperatures piezoelectric sensor in described flow measurement interface; Also comprise the electronics integrating instrument, described electronics integrating instrument is connected in the outer wall of described housing by heat radiation pole metal material, that the surface is provided with heat radiator; Also be provided with pressure transducer on described electronics integrating instrument, described pressure transducer is connected to described pressure interface by the heat radiation pressure pipe; Described pressure transducer, temperature sensor and piezoelectric sensor all are electrically connected to the signal input part of described electronics integrating instrument.
Advantage of the present utility model and good effect are: the utility model proposes a kind of vortex precession flowmeter for measuring vapor flow rate, solved the poor problem of the vibration strength of eddy currents flowmeter and the production that brings thus in the prior art, problem that installation cost is high.Pressure transducer is located on the electronics integrating instrument, is connected at a distance the higher housing of temperature by the heat radiation pressure pipe, has avoided sensor to be subject to the impact of high temperature in the time of accurate pressure measurement.The electronics integrating instrument is connected to housing by the heat radiation pole of good heat dispersion performance; the heat that conduction comes from housing is dispersed in the surrounding environment by the heat radiator on the heat radiation pole; conduct to like this on the electronics integrating instrument heat just seldom, effectively protected the precision components in the electronics integrating instrument.Piezoelectric sensor is chosen for high temperature resistant piezoelectric sensor, and serviceable life is also longer when guaranteeing measuring accuracy.
Preferably: described heat radiation pressure pipe is thin metallic tubd, reels in the middle part spirality.
Preferably: described pressure interface is located at the end of described enclosure interior contraction section.
Preferably: described temperature survey interface is located at the top of described enclosure interior expansion segment.
Preferably: described flow measurement interface is located at the intersection of described enclosure interior contraction section and expansion segment, and quantity is two, and both centerline collineations and intersect at same point with the center line of described housing.
Description of drawings
Fig. 1 is that master of the present utility model looks and phantom view;
Fig. 2 is that a left side of the present utility model is looked and phantom view.
Among the figure: 1, electronics integrating instrument; 2, pressure transducer; 3, heat radiation pressure pipe; 4, swirl generating body; 5, housing; 6, heat radiation pole; 7, temperature sensor; 8, despinner; 9, piezoelectric sensor.
Embodiment
For further understanding summary of the invention of the present utility model, Characteristic, hereby exemplify following examples, and cooperate accompanying drawing to be described in detail as follows:
See also Fig. 1 and Fig. 2, the utility model comprises housing 5, and its inside is venturi tube structure, namely comprises a contraction section and an expansion segment.Be provided with swirl generating body 4 in the porch of housing 5, be provided with despinner 8 in its exit.
Sidewall at housing 5 arranges pressure interface, temperature survey interface and flow measurement interface.Wherein, the pressure interface is located at the end of housing 5 internal contraction sections, and the temperature survey interface is located at the top of housing 5 interior expansion sections, and the flow measurement interface is located at the intersection of housing 5 internal contraction sections and expansion segment.In the temperature survey interface, be provided with temperature sensor 7, in the flow measurement interface, be provided with resistant to elevated temperatures piezoelectric sensor 9, be preferably piezoelectric ceramics.
Also comprise electronics integrating instrument 1, this electronics integrating instrument 1 is connected in the outer wall of housing 5 by heat radiation pole 6 metal material, that the surface is provided with heat radiator.Also be provided with pressure transducer 2 on electronics integrating instrument 1, this pressure transducer 2 is connected to the pressure interface by heat radiation pressure pipe 3, and the pressure pipe 3 that herein dispels the heat is reeled in the middle part spirality for thin metallic tubd.This kind structure compactness attractive in appearance makes heat conducting area change, acceleration be delivered to the decay of the heat on the pressure transducer 2, and pressure transducer 2 is under the normal temperature always, has avoided the damage of high temperature to sensor.
The course of work and measuring principle: when the steam of axia flow enters in the flowmeter, plaing a part under the whirlpool device, be forced to stir back wall and rotate around center line, producing eddy-currents.Eddy-currents is precession in Venturi tube, arrives the unexpected throttling of contraction section, and eddy-currents accelerates, and when by expansion segment, the whirlpool center is along a conical helix precession.At this moment, the whirlpool center is directly proportional with the flow velocity of steam by the precession frequency of check point.The eddy-currents precession frequency signal that piezoelectric sensor 9 detects is through front end circuit amplification, filtering, Shape correction, after rejecting external undesired signal, convert the pulse signal with the rapid-result direct ratio of steam flow to, the signal that detects with temperature sensor 7, pressure transducer 2 is sent into and is carried out conventionally calculation and compensation computing in the electronics integrating instrument 1, and the volumetric flow rate of steam and total amount directly are shown on the LCD screen.
Claims (5)
1. a steam vortex precession flowmeter is characterized in that: comprise that inside is the housing of venturi tube structure (5), is provided with swirl generating body (4), is provided with despinner (8) in its terminal at its top; Sidewall at described housing (5) is provided with pressure interface, temperature survey interface and flow measurement interface, is provided with temperature sensor (7) in described temperature survey interface, is provided with resistant to elevated temperatures piezoelectric sensor (9) in described flow measurement interface; Also comprise electronics integrating instrument (1), described electronics integrating instrument (1) is connected in the outer wall of described housing (5) by heat radiation pole (6) metal material, that the surface is provided with heat radiator; Also be provided with pressure transducer (2) on described electronics integrating instrument (1), described pressure transducer (2) is connected to described pressure interface by heat radiation pressure pipe (3); Described pressure transducer (2), temperature sensor (7) and piezoelectric sensor (9) all are electrically connected to the signal input part of described electronics integrating instrument (1).
2. according to steam vortex precession flowmeter claimed in claim 1, it is characterized in that: described heat radiation pressure pipe (3) is thin metallic tubd, reels in the middle part spirality.
3. according to steam vortex precession flowmeter claimed in claim 1, it is characterized in that: described pressure interface is located at the end of described housing (5) internal contraction section.
4. according to steam vortex precession flowmeter claimed in claim 1, it is characterized in that: described temperature survey interface is located at the top of described housing (5) interior expansion section.
5. according to steam vortex precession flowmeter claimed in claim 1, it is characterized in that: described flow measurement interface is located at the intersection of described housing (5) internal contraction section and expansion segment, quantity is two, and both centerline collineations and intersect at same point with the center line of described housing (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468157 CN202757650U (en) | 2012-09-14 | 2012-09-14 | Steam screw-in vortex flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220468157 CN202757650U (en) | 2012-09-14 | 2012-09-14 | Steam screw-in vortex flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202757650U true CN202757650U (en) | 2013-02-27 |
Family
ID=47736823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220468157 Expired - Fee Related CN202757650U (en) | 2012-09-14 | 2012-09-14 | Steam screw-in vortex flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202757650U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267545A (en) * | 2013-05-17 | 2013-08-28 | 杭州冠一流体技术有限公司 | Procession vortex flow meter |
| CN103630171A (en) * | 2013-08-19 | 2014-03-12 | 三正集团股份有限公司 | Mining screw-in vortex flow sensor |
| CN103808374A (en) * | 2014-02-11 | 2014-05-21 | 合肥精大仪表股份有限公司 | Steam vortex shedding flowmeter measuring multiple parameters |
| CN103808373A (en) * | 2014-01-26 | 2014-05-21 | 上海肯特仪表股份有限公司 | High-precision vortex flowmeter |
| CN107727163A (en) * | 2017-10-11 | 2018-02-23 | 迈格仪表(成都)有限公司 | A kind of control method and control system for steam type vortex precession flowmeter |
-
2012
- 2012-09-14 CN CN 201220468157 patent/CN202757650U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103267545A (en) * | 2013-05-17 | 2013-08-28 | 杭州冠一流体技术有限公司 | Procession vortex flow meter |
| CN103267545B (en) * | 2013-05-17 | 2016-01-13 | 杭州冠一流体技术有限公司 | Precession spiral flowmeter |
| CN103630171A (en) * | 2013-08-19 | 2014-03-12 | 三正集团股份有限公司 | Mining screw-in vortex flow sensor |
| CN103808373A (en) * | 2014-01-26 | 2014-05-21 | 上海肯特仪表股份有限公司 | High-precision vortex flowmeter |
| CN103808374A (en) * | 2014-02-11 | 2014-05-21 | 合肥精大仪表股份有限公司 | Steam vortex shedding flowmeter measuring multiple parameters |
| CN107727163A (en) * | 2017-10-11 | 2018-02-23 | 迈格仪表(成都)有限公司 | A kind of control method and control system for steam type vortex precession flowmeter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130227 Termination date: 20150914 |
|
| EXPY | Termination of patent right or utility model |