CN203116777U - Steam flow meter - Google Patents

Steam flow meter Download PDF

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Publication number
CN203116777U
CN203116777U CN 201320110735 CN201320110735U CN203116777U CN 203116777 U CN203116777 U CN 203116777U CN 201320110735 CN201320110735 CN 201320110735 CN 201320110735 U CN201320110735 U CN 201320110735U CN 203116777 U CN203116777 U CN 203116777U
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CN
China
Prior art keywords
steam
condenser
flow meter
support
cone
Prior art date
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Active
Application number
CN 201320110735
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Chinese (zh)
Inventor
刘慎民
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
NINGXIA NEW YINHE INSTRUMENT CO Ltd
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NINGXIA NEW YINHE INSTRUMENT CO Ltd
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Priority to CN 201320110735 priority Critical patent/CN203116777U/en
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Publication of CN203116777U publication Critical patent/CN203116777U/en
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Abstract

The utility model relates to a flow measurement meter which is suitable for the field of industrial automation instruments, in particular to a steam flow meter. The steam flow meter is characterized by comprising an inner cone device. A condenser, a difference changing assembly and a pressure changing assembly are sequentially matched with the inner cone device, and the inner cone device is composed of a measurement tube, a support in the measurement tube and a V-shaped cone body matched with the support. The flow measurement meter is unique in structure, brings convenience to user installation, is high in steam flow measurement accuracy and capable of displaying various parameters in fields, is provided with 485 communication interfaces and brings convenience to user transmission, collection and management.

Description

Steam-flow meter
Technical field
The utility model relates to a kind of flowmeter that is applicable to the industrial automation instrument field, especially relates to a kind of steam-flow meter.
Background technology
Steam is national important energy source, and the measurement of steam flow is very important naturally.The flow measurement of steam, in the flow measurement field, application very extensive.Steam is worth high, then receives much concern in flow measurement.Because steam has high temperature, high value, makes the flow measurement of steam have and other medium different characteristics.
The measurement of steam flow at present, select for use differential-pressure instrumentation more, differential-pressure instrumentation, account for very high number percent in flow measurement technology, about about 60%, its reason is to use reliably, the value transform portion does not have moving element, even operating mode changes, exceeded former design normal range of operation, also can be by changing measure such as differential pressure transmitter range, make the instrument still can operate as normal.Present differential-pressure instrumentation such as orifice flowmeter when measuring steam flow, still exist not enough, more easy to wear as the orifice plate acute angle, make efflux coefficient C change, soil easily is detained in the medium, range ratio is less etc. influences flow measurement.
Summary of the invention
The purpose of this utility model is the defective that overcomes prior art, a kind of structure uniqueness is provided, makes things convenient for user installation, to accurate high, the on-the-spot steam-flow meter that can show multiple parameter and 485 communication interfaces be arranged, be convenient to user's transmission, collection and manage of flow measurement of steam.
The utility model is realized in the following way:
A kind of steam-flow meter is characterized in that: it comprises interior wimble device, is combined with condenser, difference change assembly on the interior wimble device successively and presses to become assembly, and interior wimble device is made up of the V-arrangement inner cone that cooperates on the support in measuring tube, the measuring tube, the support;
The endpiece of described condenser is connected with connecting pipe, stop valve and pressure guiding pipe in turn, becomes assembly by pressure guiding pipe with described difference and is connected, and described pressure becomes assembly and links to each other above the P1 pressure guiding pipe, and described condenser lower end has joint to be connected with pressure guiding pipe;
Described support comprises and is installed in the axial central shaft of described measuring tube, end along central shaft radially evenly fixedly has 3 support bars, wherein there is the effect of 1 support bar to draw P2 pressure to the difference change, in addition in 1 support bar platinum resistance is installed and measures temperature, the central shaft other end 3 back up pads are radially evenly fixedly arranged;
Described condenser is two, and the position of two condensers is equally high.
The utility model has following effect:
1) device that provides of the utility model: because the inner cone steam flow is shorter as flow development length when the inner cone steam-flow meter is installed and used in respect of the self-rectifying effect, still can reproduce the efflux coefficient that the laboratory marks, make the flow measurement precision be guaranteed; And use reliable, value transform portion not have moving element, and even operating mode changes, exceeded former design normal range of operation, also can be by changing measure such as differential pressure transmitter range, make the instrument still can operate as normal.
2) in the device that the utility model provides: condenser is withstand voltage electrical condenser, mainly deposits cold water, and effect is with the steam of high temperature and differential pressure transmitter, pressure transmitter isolation, but can transmit pressure.
3) flow integrator of cone flow meter in the steam is had flow measurement is accurately high, on-the-spot to be shown multiple parameter and 485 communication interfaces are arranged, be convenient to user's transmission, collection and manage.
4) device that provides of the utility model, the internal cone type steam-flow meter is tested simple and easy process: be by wimble device in the V-arrangement, it is Δ P=P that ducted velocity of medium v is converted into differential pressure Δ P 1-P 2, through the condensing unit cooling, differential pressure transmitter and pressure unit are measured fallen warm differential pressure Δ P, pressure P 1, the platinum resistance P that in pipeline, installs simultaneously t100 medium temperatures of surveying are carried out computing, demonstration, output through flow computer by the steam mathematical model of finishing.
5) good energy-conserving effect: the inner cone steam-flow meter that the utility model provides is 1/2 crushing of orifice flowmeter because design feature has less crushing approximately, is energy-conservation instrument.
6) measurement range is wide: the temperature measurement device that the utility model provides is at steam below 350 ℃, and bore is between 50-300mm, and pressure is less than 6MP a, horizontal pipe is main, installs based on separate type.
Description of drawings
Fig. 1 is the utility model structural representation;
Fig. 2 is the right view of the utility model Fig. 1.
Embodiment
A kind of steam-flow meter, as depicted in figs. 1 and 2: it comprises interior wimble device 1, be combined with condenser 2, difference change assembly 3-1 on the interior wimble device 1 successively and press change assembly 3-2, interior wimble device 1 is made up of the V-arrangement inner cone 6 that cooperates on the support 5 in measuring tube 4, the measuring tube 4, the support 5.
The endpiece of described condenser 2 is connected with connecting pipe 7, stop valve and pressure guiding pipe 8 in turn, becomes assembly 3-1 by pressure guiding pipe 8 with described difference and is connected, and described pressure becomes assembly 3-2 and links to each other above the P1 pressure guiding pipe, and described condenser 2 lower ends have joint to be connected with pressure guiding pipe 8.
Described support 5 comprises and is installed in the axial central shaft of described measuring tube 4, end along central shaft radially evenly fixedly has 3 support bars, wherein there is the effect of 1 support bar to draw P2 pressure to the difference change, in addition in 1 support bar platinum resistance 9 is installed and measures temperature, the central shaft other end 3 back up pads are radially evenly fixedly arranged.
Support bar and back up pad all weld with central shaft, measuring tube.Guarantee that inner cone is stable, firm, be installed in the measuring tube center, satisfy measurement function.
Described condenser 2 is two, and the position of two condensers 2 is equally high.
The left side arrow is the steam flow direction among Fig. 1.
Because pressure P 2 force value are different behind the preceding pressure P 1 of inner cone and the inner cone, P1 is greater than P2, and the condensate water that can make steam form is different many at two condensers, causes two different height of condenser water level, and flow measurement is brought error.
Two condenser structures: condenser is connected with measuring tube by stop valve, when two condenser locations are installed, must keep equally high, can make the water that exceeds like this, automatically be back in the pipeline, it is equally high that two condenser middle water levels are remained, and guaranteed to measure accurately.
The steam pipework overwhelming majority is empty frame pipeline, and pipeline laying mostly is level or vertical greatly.The inner cone steam-flow meter is installed in the pipeline, should pay the utmost attention at horizontal pipeline, if in vertical duct, is installed in vapor stream flow line from top to bottom as far as possible.And suggestion adopts separate type inner cone steam-flow meter to carry out flow measurement.Making difference become, press change and flow integrator to leave the pipeline of heat, is favourable to measurement like this.

Claims (4)

1. steam-flow meter, it is characterized in that: it comprises interior wimble device (1), be combined with condenser (2), difference change assembly (3-1) on the interior wimble device (1) successively and press change assembly (3-2), the V-arrangement inner cone (6) that interior wimble device (1) is gone up cooperation by the support (5) in measuring tube (4), the measuring tube (4), support (5) is formed.
2. steam-flow meter as claimed in claim 1, it is characterized in that: the endpiece of described condenser (2) is connected with connecting pipe (7), stop valve and pressure guiding pipe (8) in turn, becoming assembly (3-1) by pressure guiding pipe (8) with described difference is connected, described pressure becomes assembly (3-2) and links to each other in pressure guiding pipe (8) top, and described condenser (2) lower end has joint to be connected with pressure guiding pipe (8).
3. steam-flow meter as claimed in claim 1, it is characterized in that: described support (5) comprises and is installed in the axial central shaft of described measuring tube (4), end along central shaft radially evenly fixedly has 3 support bars, wherein there is the effect impulse power of 1 support bar to become to difference, in addition in 1 support bar platinum resistance is installed and measures temperature, the central shaft other end 3 back up pads are radially evenly fixedly arranged.
4. steam-flow meter as claimed in claim 1, it is characterized in that: described condenser (2) is two, and the position of two condensers (2) is equally high.
CN 201320110735 2013-03-12 2013-03-12 Steam flow meter Active CN203116777U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201320110735 CN203116777U (en) 2013-03-12 2013-03-12 Steam flow meter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201320110735 CN203116777U (en) 2013-03-12 2013-03-12 Steam flow meter

Publications (1)

Publication Number Publication Date
CN203116777U true CN203116777U (en) 2013-08-07

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201320110735 Active CN203116777U (en) 2013-03-12 2013-03-12 Steam flow meter

Country Status (1)

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CN (1) CN203116777U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3489633A1 (en) * 2017-11-27 2019-05-29 McCrometer Inc. Gusseted pressure meter
CN109959484A (en) * 2017-12-25 2019-07-02 上海电气电站设备有限公司 High temperature fluid pipeline device for detecting dynamic pressure

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3489633A1 (en) * 2017-11-27 2019-05-29 McCrometer Inc. Gusseted pressure meter
CN109959482A (en) * 2017-11-27 2019-07-02 麦克科罗米特股份有限公司 Heavier-duty pressure gauge
CN109959482B (en) * 2017-11-27 2021-11-26 麦克科罗米特股份有限公司 Reinforced pressure gauge
CN109959484A (en) * 2017-12-25 2019-07-02 上海电气电站设备有限公司 High temperature fluid pipeline device for detecting dynamic pressure

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