CN203719704U - Steam vortex shedding flowmeter capable of measuring multiple parameters - Google Patents

Steam vortex shedding flowmeter capable of measuring multiple parameters Download PDF

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Publication number
CN203719704U
CN203719704U CN201420062270.0U CN201420062270U CN203719704U CN 203719704 U CN203719704 U CN 203719704U CN 201420062270 U CN201420062270 U CN 201420062270U CN 203719704 U CN203719704 U CN 203719704U
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measuring
parameters
flow
steam
flow sensor
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CN201420062270.0U
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Chinese (zh)
Inventor
王国武
甘晓梅
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HEFEI JINGDA INSTRUMENT CO Ltd
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HEFEI JINGDA INSTRUMENT CO Ltd
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Abstract

The utility model discloses a steam vortex shedding flowmeter capable of measuring multiple parameters. A vortex generator is arranged in an inner hole of a gauge body with measuring tube; a hole is vertically formed in the outer side of the gauge body with measuring tube and right behind the vortex generator for installing a flow sensor; a support cylinder is arranged above the gauge body with measuring tube, and covers the flow sensor; a flow totalizer is arranged at the upper end part of the support cylinder. By applying the steam vortex shedding flowmeter capable of measuring multiple parameters, multiple parameters of steam can be measured, the range is wide, steam measuring precision is high, the pressure loss is small, and multiple sensors are designed integrally. The flowmeter has the advantages of compact structure, high reliability, low manufacturing cost, convenient in operation and maintenance, long service life of a product and the like. The high temperature resistant flow sensor and temperature sensor are adopted, thus the steam vortex shedding flowmeter capable of measuring multiple parameters can measure both the saturated steam and superheated steam with a higher temperature.

Description

The steam vortex flowmeter of measuring multiple parameters
Technical field
The utility model relates to industrial flow meter technical field, relates in particular to a kind of steam vortex flowmeter of measuring multiple parameters.
Background technology
Saturated or superheated vapor is the main energy sources of current industrial and agricultural production and people's lives, and it is particularly important that steam measurement just seems, the steam measurement instrument that Present Domestic generally adopts is outward orifice flowmeter, Venturi nozzle flowmeter and common vortex shedding flow meter.Orifice flowmeter and Venturi nozzle flowmeter survey narrow range, measuring accuracy is not high, flowmeter crushing is large, and can not measure temperature and pressure simultaneously, common vortex shedding flow meter resistance to elevated temperatures is poor, the life-span is short and only can measurement volumes flow for measuring steam, can not measure temperature, pressure and density and the accurate mass rate of steam, if need accurately to measure steam mass flow, also need separately to join temperature transmitter, pressure unit and flow computer, so cost is higher.
Utility model content
The utility model object is exactly the defect in order to make up prior art, and a kind of steam vortex flowmeter of measuring multiple parameters is provided.
The utility model is achieved through the following technical solutions:
A kind of steam vortex flowmeter of measuring multiple parameters, include band measuring tube table body, swirl generating body, flow sensor, flow integrator, temperature sensor and pressure transducer, described swirl generating body is arranged in the endoporus with measuring tube table body, in the outside with measuring tube table body and the vertical open pores just below that is positioned at swirl generating body described flow sensor is installed, above with measuring tube table body, support barrel mast is installed, described support barrel mast covers flow sensor, described flow integrator is arranged on the end, upper end of supporting barrel mast, described pressure transducer is arranged on and supports on the leading flank dividing on barrel mast top, with the external side of measuring tube table and be positioned at cross section, flow sensor place 90 degree left corners have pressure transducer pressure port, described pressure transducer communicates with pressure transducer pressure port by pressure pipe, on with measuring tube table body and the front-right that is positioned at flow sensor temperature sensor is installed, described flow sensor, temperature sensor and pressure transducer are electrically connected with flow integrator respectively, measure respectively the signal corresponding to flow velocity, temperature and pressure of steam by flow sensor, temperature sensor and pressure transducer, Bing Jiang tri-road signals are sent to respectively in flow integrator, demonstrate the flow velocity of steam, the numerical value of temperature and pressure by flow integrator, and calculate and demonstrate volume flow value, temperature value, force value, the vapour density of steam and add up the various parameters such as mass flow value by flow integrator.
On described support barrel mast, have multiple heat radiation fenestras, play the effect of radiating and cooling.
Distance between described flow sensor and swirl generating body is 5-15mm, and the distance between temperature sensor and flow sensor is 40-60mm.
Described pressure pipe is that external diameter is that 6-10mm internal diameter is the impulse bend pipe of 2-4mm seamless stainless steel material and is respectively equipped with back-shaped pipeline section at the two ends of impulse bend pipe, by the effect of impulse bend pipe impulse cooling, what ensured pressure transducer can directly not contact high-temperature steam, pressure parameter that also can Measurement accuracy measured medium.
Between pressure transducer and pressure pipe, be connected with high temperature needle-valve, can realize while shutting high temperature needle-valve in the situation of continuing to flow, also can realize the inspection and maintenance to pressure transducer.
Described flow sensor adopted that biplate piezoelectric single crystal makes piezoelectric type vortex flow sensors, sensitivity and the anti-shake performance of flow sensor are improved, described piezoelectric crystal selects Curie temperature up to the lithium niobate piezoelectric single crystal that is 1200 degree, has guaranteed that sensor ability 450 spends the performance of high-temperature steam.
Impulse bend pipe is changed into the straight pipe structure of not being with two sections of back-shaped pipeline sections, can be common to the measurement of other gases or liquid.
The utility model has the advantages that: the parameter that the utility model can be measured steam is many, broad quantum, the precision of measuring steam is high, the pressure loss is little, multiple sensors is based on integrated design, flowmeter structure compactness, reliability is high, low cost of manufacture, working service is convenient, the advantages such as life of product is long, resistant to elevated temperatures flow sensor and temperature sensor are adopted, make the steam vortex flowmeter of this measuring multiple parameters can measure saturated vapor can to measure again the superheated vapor of higher temperature, pressure pipe can be made not to be with into the straight pipe of back-shaped pipe, can be common to the metering of other gases or liquid, applied range.
Brief description of the drawings
Fig. 1 is the utility model front elevation.
Fig. 2 is the left view of Fig. 1.
Embodiment
As Fig. 1, shown in 2, a kind of steam vortex flowmeter of measuring multiple parameters, include band measuring tube table body 2, swirl generating body 1, flow sensor 3, flow integrator 6, temperature sensor 8 and pressure transducer 10, described swirl generating body 1 is arranged in the endoporus with measuring tube table body 2, in the outside with measuring tube table body 2 and the vertical open pores just below that is positioned at swirl generating body 1 described flow sensor 3 is installed, above with measuring tube table body 2, support barrel mast 4 is installed, described support barrel mast 4 covers flow sensor 3, described flow integrator 6 is arranged on the end, upper end of supporting barrel mast 4, described pressure transducer 10 is arranged on the leading flank that supports part on barrel mast 4, with measuring tube table body 2 outsides and be positioned at flow sensor 3 cross sections, place 90 degree left corners have pressure transducer pressure port 15, described pressure transducer 10 communicates with pressure transducer pressure port 15 by pressure pipe, on with measuring tube table body 2 and the front-right that is positioned at flow sensor 3 temperature sensor 8 is installed, described flow sensor 3, temperature sensor 8 and pressure transducer 10 are electrically connected with flow integrator 6 respectively, measure respectively the signal corresponding to flow velocity, temperature and pressure of steam by flow sensor 3, temperature sensor 8 and pressure transducer 10, Bing Jiang tri-road signals are sent to respectively in flow integrator 6, demonstrate the flow velocity of steam, the numerical value of temperature and pressure by flow integrator 6, and calculate and demonstrate volume flow value, temperature value, force value, the vapour density of steam and add up the various parameters such as mass flow value by flow integrator 6.
On described support barrel mast 4, have multiple heat radiation fenestras 5, play the effect of radiating and cooling.
Distance between described flow sensor 3 and swirl generating body 1 is 5-15mm, and the distance between temperature sensor 8 and flow sensor 3 is 40-60mm.
Described pressure pipe is that external diameter is that 6-10mm internal diameter is the impulse bend pipe 13 of 2-4mm seamless stainless steel material and is respectively equipped with back-shaped pipeline section 12 at the two ends of impulse bend pipe 13, by the effect of impulse bend pipe 13 impulse coolings, what ensured pressure transducer 10 can directly not contact high-temperature steam, pressure parameter that also can Measurement accuracy measured medium.
Between pressure transducer 10 and pressure pipe, be connected with high temperature needle-valve 11, can realize while shutting high temperature needle-valve 11 in the situation of continuing to flow, also can realize the inspection and maintenance to pressure transducer 10.
Described flow sensor 3 adopted that biplate piezoelectric single crystal makes piezoelectric type vortex flow sensors, sensitivity and the anti-shake performance of flow sensor 3 are improved, described piezoelectric crystal selects Curie temperature up to the lithium niobate piezoelectric single crystal that is 1200 degree, has guaranteed that sensor ability 450 spends the performance of high-temperature steam.

Claims (6)

1. the steam vortex flowmeter of a measuring multiple parameters, it is characterized in that: include band measuring tube table body, swirl generating body, flow sensor, flow integrator, temperature sensor and pressure transducer, described swirl generating body is arranged in the endoporus with measuring tube table body, in the outside with measuring tube table body and the vertical open pores just below that is positioned at swirl generating body described flow sensor is installed, above with measuring tube table body, support barrel mast is installed, described support barrel mast covers flow sensor, described flow integrator is arranged on the end, upper end of supporting barrel mast, described pressure transducer is arranged on and supports on the leading flank dividing on barrel mast top, with the external side of measuring tube table and be positioned at cross section, flow sensor place 90 degree left corners have pressure transducer pressure port, described pressure transducer communicates with pressure transducer pressure port by pressure pipe, on with measuring tube table body and the front-right that is positioned at flow sensor temperature sensor is installed, described flow sensor, temperature sensor and pressure transducer are electrically connected with flow integrator respectively.
2. the steam vortex flowmeter of measuring multiple parameters according to claim 1, is characterized in that: on described support barrel mast, have multiple heat radiation fenestras.
3. the steam vortex flowmeter of measuring multiple parameters according to claim 1, is characterized in that: the distance between described flow sensor and swirl generating body is 5-15mm, and the distance between temperature sensor and flow sensor is 40-60mm.
4. the steam vortex flowmeter of measuring multiple parameters according to claim 1, is characterized in that: described pressure pipe is that external diameter is that 6-10mm internal diameter is the impulse bend pipe of 2-4mm seamless stainless steel material and is respectively equipped with back-shaped pipeline section at the two ends of impulse bend pipe.
5. the steam vortex flowmeter of measuring multiple parameters according to claim 1, is characterized in that: between pressure transducer and pressure pipe, be connected with high temperature needle-valve.
6. the steam vortex flowmeter of measuring multiple parameters according to claim 1, it is characterized in that: described flow sensor adopted that biplate piezoelectric single crystal makes piezoelectric type vortex flow sensors, described piezoelectric crystal selects Curie temperature up to the lithium niobate piezoelectric single crystal that is 1200 degree.
CN201420062270.0U 2014-02-11 2014-02-11 Steam vortex shedding flowmeter capable of measuring multiple parameters Active CN203719704U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420062270.0U CN203719704U (en) 2014-02-11 2014-02-11 Steam vortex shedding flowmeter capable of measuring multiple parameters

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420062270.0U CN203719704U (en) 2014-02-11 2014-02-11 Steam vortex shedding flowmeter capable of measuring multiple parameters

Publications (1)

Publication Number Publication Date
CN203719704U true CN203719704U (en) 2014-07-16

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105973317A (en) * 2016-03-23 2016-09-28 合肥精大仪表股份有限公司 Bidirectional metering vortex shedding flowmeter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
CN105973317A (en) * 2016-03-23 2016-09-28 合肥精大仪表股份有限公司 Bidirectional metering vortex shedding flowmeter

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