CN203310453U - Multifunctional flow measuring instrument - Google Patents
Multifunctional flow measuring instrument Download PDFInfo
- Publication number
- CN203310453U CN203310453U CN2013203702721U CN201320370272U CN203310453U CN 203310453 U CN203310453 U CN 203310453U CN 2013203702721 U CN2013203702721 U CN 2013203702721U CN 201320370272 U CN201320370272 U CN 201320370272U CN 203310453 U CN203310453 U CN 203310453U
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- connecting pipe
- end connecting
- pressure
- flow
- measurement instrument
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Abstract
The utility model relates to a multifunctional flow measuring instrument. The multifunctional flow measuring instrument is characterized by comprising a multi-stage throttling component (6) which is communicated with a three-valve manifold (4) through a front end pressure pipe (7) and a rear end pressure pipe (12) of the multi-stage throttling component (6); the three-valve manifold (4) is also communicated with a pressure and differential pressure composite sensor (3); a signal output end of the pressure and differential pressure composite sensor (3) is electrically connected with a flow totalizer (2). The multifunctional flow measuring instrument further comprises a temperature sensor (5) which is electrically connected with the flow totalizer (2). The multifunctional flow measuring instrument has the advantages of being simple in structure, high in precision, simple to operate and high in expansibility, and can achieve high-precision measurement, high reliability and multifunction easily.
Description
Technical field
The utility model relates to a kind of multi-functional flow measurement instrument.
Background technology
Rock gas is national important energy source, and it is also very important, especially a kind of easy for installation that gas discharge is measured nature, and installation cost is low; Use reliably, and a little repair; Measure accurately highly, and efflux coefficient can remain unchanged in the long period, the gas discharge instrument that function is more complete.The user that must be subject to needing gas discharge to measure extensively welcomes.
Realize above-mentioned target, differential-pressure instrumentation is good selection, differential-pressure instrumentation, in flow measurement technology, account for very high number percent approximately 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 measures such as change differential pressure transmitter ranges, instrument still can be worked, and the integrated gas discharge measurement instrument of present stage, although through constantly weeding out the old and bring forth the new, can meet and measure requirement, but just the simple combination of differential pressure transmitter and pressure unit machinery, the large error of its volume is relatively also large.
The utility model content
The purpose of this utility model is to provide a kind of multi-functional flow measurement instrument, can realize that high-acruracy survey and reliability are high.
A kind of multi-functional flow measurement instrument, its special feature is: comprise multi-level throttle spare, this multi-level throttle spare is communicated with three valve groups by its front end connecting pipe and rear end connecting pipe, and this three valves group also is communicated with pressure and differential pressure compound sensor, the signal output part of this pressure and differential pressure compound sensor is electrically connected to single-chip microcomputer and flow integrator respectively in addition, also comprise temperature sensor, this temperature sensor also is electrically connected to this flow integrator.
Wherein temperature sensor is arranged on multi-level throttle spare.
Wherein also comprise single-chip microcomputer, this single-chip microcomputer is electrically connected to a LCDs and described pressure and differential pressure compound sensor respectively.
Wherein multi-level throttle spare comprises measuring tube, the two ends of this measuring tube are communicated with front end connecting pipe and rear end connecting pipe respectively, and the end of front end connecting pipe and rear end connecting pipe all is connected with same a plate, in measuring tube, to being installed successively, plate lacks the scarce choked flow piece in choked flow piece, circumferential weld choked flow piece and hole along MEDIA FLOW in addition.
Wherein the front end connecting pipe on web joint and connecting pipe place, rear end all are equipped with sealing ring.
That multi-functional flow measurement instrument of the present utility model has advantages of is simple for structure, precision is high, simple to operate, extendability is strong, more easily realizes high-acruracy survey, reliability is high, function is many.Also have the following advantages: automaticity is high, and rich interface possesses communication capacity, is easy to realize miniaturization.Multi-functional flow measurement instrument of the present utility model, be that the circuit of differential pressure pick-up and pressure transducer and temperature sensor is organically combined and has been placed on a circuit board, not only makes volume-diminished, also greatly improves on measuring accuracy.
The accompanying drawing explanation
Accompanying drawing 1 is structural representation of the present utility model;
Accompanying drawing 2 is the structural representation of multi-level throttle spare in the utility model (6) part.
Embodiment
As shown in Figure 1, 2, the utility model is a kind of multi-functional flow measurement instrument, comprise multi-level throttle spare 6, this multi-level throttle spare 6 is communicated with three valve groups 4 by its front end connecting pipe 7 and rear end connecting pipe 12, and this three valves group 4 also is communicated with pressure and differential pressure compound sensor 3, the signal output part of this pressure and differential pressure compound sensor 3 is electrically connected to a flow integrating instrument 2 in addition, also comprise the temperature sensor 5 be arranged on multi-level throttle spare 6, this temperature sensor 5 also is electrically connected to this flow integrator 2.
Also comprise single-chip microcomputer, this single-chip microcomputer is electrically connected to a LCDs and described pressure and differential pressure compound sensor 3 respectively.Wherein multi-level throttle spare 6 comprises measuring tube 1, the two ends of this measuring tube 1 are communicated with front end connecting pipe 7 and rear end connecting pipe 12 respectively, and the end of front end connecting pipe 7 and rear end connecting pipe 12 all is connected with same a plate 11, interior along MEDIA FLOW to the scarce choked flow piece 8 of plate, the scarce choked flow piece 10 of circumferential weld choked flow piece 9 and hole are installed successively at measuring tube 1 in addition.Front end connecting pipe 7 on web joint 11 and rear end connecting pipe 12 places all are equipped with sealing ring in addition.
Using method of the present utility model and principle of work are:
The utility model is a kind of multi-functional flow measurement instrument, comprises multi-level throttle spare 6, and this multi-level throttle spare 6 is connected with three valve groups 4 by two pipelines.The front and back pressure reduction produced during by throttling element when medium is collected three valve groups 4 by the connecting pipe on the tube wall of throttling element two ends, cut-off effect when three valve groups 4 play the maintenance secondary instrument here, in three valve groups 4, by positive pressure passageway, be connected between the malleation import and export, between the negative pressure import and export, be connected by negative pressure channel, center-aisle, by positive and negative pressure pressure channel connection, is separately installed with valve on positive pressure passageway, negative pressure channel and center-aisle.Three valves in three valve groups 4 also can be regulated flow, prevent dielectric leakage.
And this three valves group 4 also is connected with pressure and differential pressure compound sensor 3, by three valve groups 4, enter into the bellows of compound sensor, be that pressure and differential pressure compound sensor 3 comprise gas pressure sensor and gas differential pressure pickup, both shared bellows, the electric signal that is converted to respectively gaseous tension and pressure reduction by the mechanical signal of bellows impression enters single-chip microcomputer and processes.Be about to this continuous electric signal and be sent to single-chip microcomputer, by single-chip microcomputer, carry out a series of operation program computings by finishing in advance, then show by LCDs.For example, measurement instrument of the present utility model is when measuring rock gas, and the flow truly measured is the operating mode flow of pipeline medium and the pressure and temperature under operating mode, need pass through single-chip microcomputer, equation of gaseous state by desirable gas carries out computing, is converted into Natural gas standard volumetric flow rate Nm
3/ h, and show and get final product on LCDs.
This pressure and differential pressure compound sensor 3 also are connected with flow integrator 2 in addition, and this flow integrator 2 is connected with a temperature sensor 5, and this temperature sensor 5 is contained on the support bar of restricting element in advance.Gas pressure, pressure reduction, temperature that flow integrator 2 will obtain by sensor, obtain gas discharge information and export on the display of flow integrator 2.
Between compound sensor and three valve groups 4, use O-ring seal to be connected with tightly emitting, three valve groups 4 and being connected on two connecting pipe ends of connecting pipe welded web joint 11, then with O-ring seal with tightly emit and be connected.Temperature sensor 5 is arranged on the multi-level throttle spare 6 of measuring tube 1 and connecting pipe 90 degree directions upper, and the outside weld screw thread is with tightly emitting connection.
When MEDIA FLOW during through measuring tube 1, this is to be in unordered disturbed flow condition for medium in pipeline, even also has other granule foreign, can work as MEDIA FLOW and cross the scarce choked flow piece 8(balance plate of plate) time, plate lacks choked flow piece 8 and plays 2 effects: the firstth, stopped a large amount of suspended particles, and the secondth, played rectified action.For the stable of next step fluid lays the first stone, when flow through circumferential weld choked flow piece 9(inner cone) time, because circumferential weld choked flow piece 9 itself just has the function of self-rectifying self-cleaning, to measure pressure ready for next step.Last because medium is compressed into tube wall while flowing out circumferential weld choked flow piece 9, hole lacks choked flow piece 10(nozzle flowing through) time can obtain higher pressure reduction, not only can increase range ratio, precision is improved.
Claims (5)
1. multi-functional flow measurement instrument, it is characterized in that: comprise multi-level throttle spare (6), this multi-level throttle spare (6) is communicated with three valve groups (4) by its front end connecting pipe (7) and rear end connecting pipe (12), and this three valves group (4) also is communicated with pressure and differential pressure compound sensor (3), the signal output part of this pressure and differential pressure compound sensor (3) is electrically connected to a flow integrating instrument (2) in addition, also comprise temperature sensor (5), this temperature sensor (5) also is electrically connected to this flow integrator (2).
2. multi-functional flow measurement instrument as claimed in claim 1, it is characterized in that: wherein temperature sensor (5) is arranged on multi-level throttle spare (6).
3. multi-functional flow measurement instrument as claimed in claim 1 is characterized in that: wherein also comprise single-chip microcomputer, this single-chip microcomputer is electrically connected to a LCDs and described pressure and differential pressure compound sensor (3) respectively.
4. multi-functional flow measurement instrument as described as any one in claims 1 to 3, it is characterized in that: wherein multi-level throttle spare (6) comprises measuring tube (1), the two ends of this measuring tube (1) are communicated with front end connecting pipe (7) and rear end connecting pipe (12) respectively, and the end of front end connecting pipe (7) and rear end connecting pipe (12) all is connected with same a plate (11), in measuring tube (1), to being installed successively, plate lacks the scarce choked flow piece (10) in choked flow piece (8), circumferential weld choked flow piece (9) and hole along MEDIA FLOW in addition.
5. multi-functional flow measurement instrument as claimed in claim 4, it is characterized in that: wherein the front end connecting pipe (7) on web joint (11) and rear end connecting pipe (12) locate all to be equipped with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203702721U CN203310453U (en) | 2013-06-26 | 2013-06-26 | Multifunctional flow measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203702721U CN203310453U (en) | 2013-06-26 | 2013-06-26 | Multifunctional flow measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203310453U true CN203310453U (en) | 2013-11-27 |
Family
ID=49616655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203702721U Expired - Lifetime CN203310453U (en) | 2013-06-26 | 2013-06-26 | Multifunctional flow measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203310453U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181037A (en) * | 2015-11-02 | 2015-12-23 | 陈惺 | Online accurate measuring device and online accurate measuring method for fluid flow |
| CN110926548A (en) * | 2019-12-03 | 2020-03-27 | 天地（常州）自动化股份有限公司 | Measuring device |
-
2013
- 2013-06-26 CN CN2013203702721U patent/CN203310453U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105181037A (en) * | 2015-11-02 | 2015-12-23 | 陈惺 | Online accurate measuring device and online accurate measuring method for fluid flow |
| CN110926548A (en) * | 2019-12-03 | 2020-03-27 | 天地（常州）自动化股份有限公司 | Measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131127 |
|
| CX01 | Expiry of patent term |