CN203274816U - Precession vortex steam flowmeter - Google Patents
Precession vortex steam flowmeter Download PDFInfo
- Publication number
- CN203274816U CN203274816U CN 201320319963 CN201320319963U CN203274816U CN 203274816 U CN203274816 U CN 203274816U CN 201320319963 CN201320319963 CN 201320319963 CN 201320319963 U CN201320319963 U CN 201320319963U CN 203274816 U CN203274816 U CN 203274816U
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- housing
- steam flowmeter
- temperature sensor
- sensor
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Abstract
The utility model provides a precession vortex steam flowmeter. The precession vortex steam flowmeter comprises a housing, a vortex generation body, two flow sensors, a temperature sensor, a pressure transducer and a flow totalizer. The housing is connected with the flow totalizer via a heat radiation pole. The vortex generation body is arranged in the housing. The two flow sensors are connected in the housing and are respectively disposed at two sides of the vortex generation body. Each flow sensor is connected with the flow totalizer via flow sensor threading pipes. The temperature sensor is connected into the housing and the vortex generation body and then is connected with the flow totalizer via the threading pipes. The pressure transducer is connected into the housing via a press-guiding tube and is connected with the flow totalizer via the threading pipes. The precession vortex steam flowmeter is impact in structure. A special sealing structure and advanced technology of the double probe precession type flow sensors are adopted. The precession vortex steam flowmeter is high in sealing capability, high in anti-interference capability and low in power dissipation; and is also safe and reliable, and is high in measurement precision.
Description
Technical field
The utility model belongs to field of flow meters, is specifically related to a kind of cyclone steam flowmeter.
Background technology
The advantages such as vortex precession flowmeter is to adopt advanced microprocessing, has function strong, and flow range is wide, and operating maintenance is simple, and is easy to install.Due to the uniqueness of vortex precession flowmeter, make it must constantly adapt to the development of mechanical manufacture level in evolution.But traditional steam type vortex precession flowmeter is owing to only adopting single flow sensor, and poor anti jamming capability, measuring accuracy are not high.
The utility model content
The cyclone steam flowmeter that provides a kind of measuring accuracy high is provided the purpose of this utility model.
The utility model is achieved by the following technical solution:
A kind of cyclone steam flowmeter comprises housing, swirl generating body, two flow sensors, temperature sensor, pressure transducer and flow integrators; Housing is connected by heat radiation pole with flow integrator; Swirl generating body is arranged in housing, and two flow sensors all access in housing, lay respectively at the both sides of swirl generating body, and each flow sensor all is connected with flow integrator by the flow sensor penetration pipe; Temperature sensor accesses in housing, after swirl generating body, is connected with flow integrator by the temperature sensor penetration pipe; Pressure transducer accesses in housing by pressure guiding pipe, and is connected with flow integrator by the pressure transducer penetration pipe.Be provided with hermetically-sealed construction between flow sensor and housing, described hermetically-sealed construction comprises high temperature asbestos pad and fluororubber O-type O-ring seal.
Further, be provided with hermetically-sealed construction between temperature sensor and housing, described hermetically-sealed construction comprises high temperature asbestos pad and fluororubber O-type O-ring seal.
Further, described pressure guiding pipe is a S type impulse radiating tube.
Further, flow sensor penetration pipe and temperature sensor penetration pipe are shielded lead heat radiation penetration pipe.
Cyclone steam flowmeter described in the utility model integrates screw type flow sensor, temperature sensor, pressure transducer and steam flow integrating instrument, can detect and show pressure, temperature, volumetric flow rate, mass rate, heat flow, volume total amount, quality total amount, the heat amount of steam, be applicable to the measurement of dry saturated steam or superheated vapor.Its compact conformation adopts special hermetically-sealed construction, and advanced two probe screw type flow sensor technology, has good airproof performance, and antijamming capability is strong, and is low in energy consumption, safety, reliable, measuring accuracy advantages of higher.
Description of drawings
Fig. 1 is the structural drawing one of cyclone steam flowmeter described in the utility model;
Fig. 2 is the structural drawing two of cyclone steam flowmeter described in the utility model;
Fig. 3 is the partial enlarged drawing of Fig. 2.
Embodiment
The utility model is described in more detail below in conjunction with the drawings and specific embodiments.
As Figure 1-3, the utility model provides a kind of cyclone steam flowmeter, comprises housing 1, swirl generating body 3, two flow sensors 4, temperature sensor 5, pressure transducer 6 and flow integrators; Housing 1 is connected by heat radiation pole 7 with flow integrator; Swirl generating body 3 is fixedly installed in housing 1 by threaded ring 2, and two flow sensors 4 all access the both sides that housing 1 is interior, lay respectively at swirl generating body 3, and each flow sensor 4 all is connected with flow integrator by flow sensor penetration pipe 8; Temperature sensor 5 accesses in housings 1, after swirl generating body 3, is connected with flow integrator by temperature sensor penetration pipe 10; Pressure transducer 6 accesses in housings 1 by pressure guiding pipe 9, and is connected with flow integrator by pressure transducer penetration pipe 15.Flow sensor penetration pipe 8 and temperature sensor penetration pipe 10 are shielded lead heat radiation penetration pipe.
When the steam along axia flow enters flow sensor 4 entrance, helical blade forces fluid to be rotated motion, so at swirl generating body 3 centers generation bumpy flows, bumpy flow is precession in Venturi tube, arriving the unexpected throttling of contraction section accelerates bumpy flow, after bumpy flow enters diffuser, because forcing, the backflow effect carries out the screw type secondary rotating.This moment, gyro frequency and the steam flow rate of bumpy flow were linear.The faint charge signal of two flow sensor 4 detections forms the pulse signal that is directly proportional to flow velocity after the differential amplification of prime amplifier, filtering, shaping, signal processing circuit in flow integrator is carried out phase bit comparison and differentiation to the signal of two-way simultaneously, reject undesired signal, and normal flow signal is counted processing.This structure has solved the vibration interference problem of single flow sensor measurement steam flow signal in the past, uses the hardware and software method, rejects undesired signal, strengthens the antijamming capability of instrument, has greatly improved measuring accuracy.
In order to guarantee the sealing of flowmeter, be provided with hermetically-sealed construction between flow sensor 4 and housing 1, described hermetically-sealed construction comprises high temperature asbestos pad 13 and fluororubber O-type O-ring seal 14.It is double sealing structure; primary seal adopts high temperature resistant asbestos pad directly to seal high-temperature steam; secondary seal adopts the seal protection of fluororubber; and hermetically-sealed construction adopts flanged elastic compression; thoroughly solved because the steam difference variation causes the seal leakage of expanding with heat and contract with cold; there is again the shielded lead heat radiation penetration pipe to carry signal wire, not only shielded the high temperature that signal disturbed but also isolated sensor.Flow sensor 4 is connected with ferrule fitting by crossover sub 11 and is connected with flow sensor penetration pipe 8, also is provided with fluororubber O-type O-ring seal 14 between while flow sensor 4 and crossover sub 11.Also adopted above-mentioned hermetically-sealed construction between temperature sensor 5 and housing 1.
Described pressure guiding pipe 9 is a S type impulse radiating tube, and this structure can make high-temperature steam condensation thermolysis, greatly improves serviceable life and the measuring accuracy of pressure transducer.
The utility model not only is confined to above-mentioned embodiment; persons skilled in the art content disclosed according to the utility model; can adopt other multiple embodiment to implement the utility model; therefore; every employing project organization of the present utility model and thinking; do some simple designs that change or change, all fall into the scope of the utility model protection.
Claims (5)
1. a cyclone steam flowmeter, is characterized in that, comprises housing (1), swirl generating body (3), two flow sensors (4), temperature sensor (5), pressure transducer (6) and flow integrator; Housing (1) is connected by heat radiation pole (7) with flow integrator; Swirl generating body (3) is arranged in housing (1), two flow sensors (4) all access in housing (1), lay respectively at the both sides of swirl generating body (3), and each flow sensor (4) all is connected with flow integrator by flow sensor penetration pipe (8); In temperature sensor (5) access housing (1), swirl generating body (3) afterwards, be connected with flow integrator by temperature sensor penetration pipe (10); Pressure transducer (6) accesses in housing (1) by pressure guiding pipe (9), and is connected with flow integrator by pressure transducer penetration pipe (15).
2. cyclone steam flowmeter according to claim 1, is characterized in that, is provided with hermetically-sealed construction between flow sensor (4) and housing (1), and described hermetically-sealed construction comprises high temperature asbestos pad (13) and fluororubber O-type O-ring seal (14).
3. cyclone steam flowmeter according to claim 1, is characterized in that, is provided with hermetically-sealed construction between temperature sensor (5) and housing (1), and described hermetically-sealed construction comprises high temperature asbestos pad and fluororubber O-type O-ring seal.
4. cyclone steam flowmeter according to claim 1, is characterized in that, described pressure guiding pipe (9) is a S type impulse radiating tube.
5. cyclone steam flowmeter according to claim 1, is characterized in that, flow sensor penetration pipe (8) and temperature sensor penetration pipe (10) are shielded lead heat radiation penetration pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320319963 CN203274816U (en) | 2013-06-04 | 2013-06-04 | Precession vortex steam flowmeter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320319963 CN203274816U (en) | 2013-06-04 | 2013-06-04 | Precession vortex steam flowmeter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203274816U true CN203274816U (en) | 2013-11-06 |
Family
ID=49505203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320319963 Expired - Lifetime CN203274816U (en) | 2013-06-04 | 2013-06-04 | Precession vortex steam flowmeter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203274816U (en) |
Cited By (1)
| 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 |
-
2013
- 2013-06-04 CN CN 201320319963 patent/CN203274816U/en not_active Expired - Lifetime
Cited By (1)
| 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: No. 198, Hualian Road, industrial park, Lingxi Town, Cangnan County, Wenzhou City, Zhejiang Province 325800 Patentee after: ZHEJIANG TANCY INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. Address before: 325000 No.1 Industrial Park, Lingxi Town, Cangnan County, Wenzhou City, Zhejiang Province Patentee before: ZHEJIANG TANCY INSTRUMENT SCIENCE & TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131106 |