CN204346524U - A kind of flow transmitter - Google Patents
A kind of flow transmitter Download PDFInfo
- Publication number
- CN204346524U CN204346524U CN201420132055.3U CN201420132055U CN204346524U CN 204346524 U CN204346524 U CN 204346524U CN 201420132055 U CN201420132055 U CN 201420132055U CN 204346524 U CN204346524 U CN 204346524U
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- CN
- China
- Prior art keywords
- magnet steel
- flow transmitter
- magneto sensor
- cmbus
- transmitter according
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- Expired - Lifetime
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000013016 damping Methods 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 5
- 239000010779 crude oil Substances 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 239000012530 fluid Substances 0.000 abstract description 2
- 238000005265 energy consumption Methods 0.000 abstract 1
- 230000007774 longterm Effects 0.000 abstract 1
- 230000004907 flux Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model relates to the matching used flow transmitter of electrical potential flowmeter of the fluid conveying and meterings such as a kind of main and crude oil.Comprise the Sensor section 20 be made up of cable connectors 1, upper shell 2, magneto sensor 3, magnet steel 4, magnet steel axle 5, damper 6, lower house 7, comprise the gauge outfit part 24 be made up of microprocessor and CMBUS bus controller 21 and display 25, battery 26, also include CMBUS and communication controler 22.Owing to have employed the high magnetosensitive absolute encoder technology of resolution low in energy consumption and Micro Energy Lose chip, internal battery can maintain long-term work and keep integrated flow consistent with on-the-spot mechanical meter sense with instantaneous delivery data.By CMBUS bus transfer digital signal, there is the interfaces such as RS232 and RJ45, support that intelligent terminal place remote shares data.
Description
Technical field
The utility model relates to a kind of flow transmitter, the electrical potential flowmeter of the fluids such as main and conveying crude oil supports the use, exactly the counting rotating shaft angular travel of flowmeter is converted to corresponding instantaneous delivery and integrated flux data, realizing display and teletransmission on the spot, is a kind of digitizing flow transmitter.
Background technology
Crude oil pipeline is carried, and two parameters be concerned about most are exactly " instantaneous delivery " and " integrated flux ".The gauge outfit of volumeter mechanical character wheel counter, structure simple count accurately and reliably, and without the need to power supply, is widely applied.But it needs lean on people directly to read " cumulative flow value " at flowmeter in-situ and estimate " instantaneous delivery value " at that time by the method for " timing of card table ", is commonly called as and checks meter.Obviously, manual metering is inaccurate, can not in real time teletransmission data, seriously constrains the raising of production management level.
For this reason, electrical potential flowmeter producer is mostly configured with " optical pulse generator "---usually also cry " photoimpact converter ".Its object is converting corresponding electric impulse signal to the angular displacement of the counting rotating shaft that mechanical character wheel links and being realized the teletransmission of pulse signal by cable.Relevant photoimpact switch technology can also see Chinese patent photoelectric pulse converting circuit (application number 200720073495.6).Using maximum in petroleum industry is scraper type flowmeter, waist type flowmeter etc., and the optical pulse generator of joining adopts incremental optical-electricity encoder to be core component, the following shortcoming of ubiquity:
(1) only have pulse to export, there is no accumulating function, can only separately connect integrating instrument and accumulate;
(2) power consumption is up to tens of milliamperes, cannot lean on battery maintenance work, even if instant power-down also can cause counting interrupt;
(3) simulating signal can not reliably teletransmission.From industry spot to Control Room, generally have tens meters to hundreds of rice not etc., and lay signal cable many mixing with power cable, be very easily interfered, cause wave form distortion in analog pulse signal transmitting procedure, miscount is unavoidable;
(4) incremental encoder is difficult to process the abnormal conditions such as vibrations, reversing in Flux meter rotation process, also can produce error count counting loss phenomenon;
(5) based on reasons such as above-mentioned (2) (3) (4), the cumulative flow value making (1) separately connect the acquisitions such as integrating instrument almost cannot be consistent with on-the-spot character wheel counter reading forever, and this convection cell needs the demand of " uninterruptedly carrying continuous measurement " to be fatal;
(6) because analog pulse signal driving force is poor, when collecting device as multiple in needs shares same road pulse signal, the measures such as signal level conversion, amplification, isolation must be taked, otherwise be difficult to share this signal.
In sum, be difficult to obtain authentic and valid " integrated flux " and " instantaneous delivery " data by " incremental encoder ", become in " digitizing oil field "---the bottleneck of Oilfield Information management.How to realize accurately and effectively from " mechanical volumetric metering " to the conversion of " digitized instantaneous delivery and integrated flux " be a difficult problem in industry always.
Utility model content
The purpose of this utility model is the solution that will provide a kind of flow transmitter, to overcome the above-mentioned defect that prior art exists.
For achieving the above object, the utility model is divided into field unit (flow transmitter) and indoor unit (communication controller) two parts, completes power supply and digital data transmission between the two by 2 line CMBUS buses.
Described field unit (flow transmitter) includes the Sensor section and gauge outfit part that are made up of magnet steel axle, magnet steel, magneto sensor and damper, lower house, upper shell, cable connectors, it is characterized in that, the magnet steel axle of band damper is installed in upper-lower casing, magnet steel is equipped with in the upper end of magnet steel axle, be magneto sensor directly over magnet steel, magneto sensor is connected with CMBUS bus controller with the microprocessor in gauge outfit part by cable connectors; Magnet steel is the ndfeb magnetic material laterally magnetized, and diameter is 4 ~ 6mm, thickness 2 ~ 4mm, and remanence strength should lower than 1000Gs, and coercive force is not less than 800kA/m, and magnetic energy product should not be less than 200kj/m
3; Magneto sensor be contain Hall element can output resolution ratio be the Micro Energy Lose integrated digital magnetosensitive sensing chip often enclosing 512-8192 absolute value angular displacement information; Magnet steel and magneto sensor assemble right alignment should be better than 0.01mm, and vertical range is between 0.2 ~ 2.5mm; Magnet steel axle, between damper and housing, be filled with damping grease; Gauge outfit part also includes display and battery.
Wherein indoor unit part, has the function of powering and carrying out the field unit in bus addressing control, has the interfaces such as RS232 and RJ45 simultaneously, support that other functional terminals carry out data sharing service.
Remarkable result of the present utility model is, thoroughly solve the defect that " optical pulse generator " exists, can ensure that " the cumulative flow value " and " instantaneous delivery value " that show on the spot with strange land reading is consistent with on-the-spot mechanical meter sense, " integrated flux " and " instantaneous delivery " data are become " True Data " with practical significance.
A kind of flow transmitter of the utility model will be described further by accompanying drawing and a specific embodiment subsequently.
Accompanying drawing explanation
Accompanying drawing 1 is the principle schematic of tradition " optical pulse generator ";
Accompanying drawing 2 is field unit of the present utility model and indoor unit principle schematic;
Accompanying drawing 3 is the field unit of an embodiment of the present utility model i.e. the one-piece construction figure of gauge outfit part;
Accompanying drawing 4 is the sensor longitudinal profile structural drawing of the flow transmitter of the utility model flow transmitter embodiment.
Embodiment
The inner structure of the Sensor section 20 in the present embodiment embodies in the diagram, magnet steel axle 5 is installed in lower house 7, magnet steel 4 is equipped with in the upper end of magnet steel axle 5, magnet steel 4 by separation layer 8 isolating seal on lower house 7 in cavity, and magnet steel axle 5 is equipped with the damper 6 preventing from shaking, and is provided with magneto sensor 3 and cable connectors 1 in upper shell 2.But described separation layer 8 non-fully is required, only must time just meaningful, and be equipped with and prevent from being filled with damping grease between the magnet steel axle 5 of the damper 6 shaken and housing.
Wherein, magnet steel 4 is ndfeb magnetic material, and magnetizing direction is that laterally (as shown in Figure 2) its diameter is 4 ~ 6mm, thickness 2 ~ 4mm, and its remanence strength should lower than 1000Gs, and coercive force is not less than 800kA/m, and magnetic energy product should not be less than 200kj/m
3, and being better than 0.01mm with the assembling right alignment of magneto sensor 3, vertical range is between 0.2 ~ 2.5mm.Wherein magneto sensor 3 is the Micro Energy Lose integrated digital magnetosensitive sensing chips containing Hall element.
During practical application, be that magnet steel axle 5 is connected with the counting output revolving shaft of electrical potential flowmeter, drive magnet steel 4 to rotate, magneto sensor 3 senses changes of magnetic field and converts best result to and can reach the angular displacement absolute value data often turning 512 ~ 8192 resolution.These data are entered in the part of gauge outfit shown in Fig. 2 and Fig. 3 24 by cable connectors 1.This gauge outfit part 24 has concentrated microprocessor and CMBUS bus marco 21, display 25 and high-energy lithium battery 26 etc., instantaneous delivery and integrated flow data accurately can be obtained, in data remote to the CMBUS and communication controler 22 of indoor unit (communication controller) while showing on the spot.This CMBUS and communication controler 22 have the ports such as RS232 and RJ45, support that other smart machine place remotes share data.
Claims (6)
1. a flow transmitter, include by magnet steel axle (5), magnet steel (4), magneto sensor (3) and damper (6), lower house (7), upper shell (2), the Sensor section (20) that cable connectors (1) forms and gauge outfit part (24), it is characterized in that, the magnet steel axle (5) of band damper (6) is installed in upper-lower casing, magnet steel (4) is equipped with in the upper end of magnet steel axle (5), magneto sensor (3) directly over magnet steel (4), magneto sensor (3) is connected with CMBUS bus controller (21) with the microprocessor in gauge outfit part (24) by cable connectors (1).
2. flow transmitter according to claim 1, it is characterized in that, described magnet steel (4) is the ndfeb magnetic material laterally magnetized, diameter is 4 ~ 6mm, thickness 2 ~ 4mm, remanence strength should lower than 1000Gs, and coercive force is not less than 800kA/m, and magnetic energy product should not be less than 200kj/m
3.
3. flow transmitter according to claim 1 and 2, it is characterized in that, described magneto sensor (3) be contain Hall element can output resolution ratio be the Micro Energy Lose integrated digital magnetosensitive sensing chip often enclosing 512-8192 absolute value angular displacement information.
4. flow transmitter according to claim 1 and 2, is characterized in that, described magnet steel (4) and magneto sensor (3) assemble right alignment and should be better than 0.01mm, and vertical range is between 0.2 ~ 2.5mm.
5. flow transmitter according to claim 1, is characterized in that, described magnet steel axle (5), is filled with damping grease between described damper (6) and housing (7).
6. flow transmitter according to claim 1, is characterized in that, described gauge outfit part (24) also includes display (25), battery (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132055.3U CN204346524U (en) | 2014-03-24 | 2014-03-24 | A kind of flow transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420132055.3U CN204346524U (en) | 2014-03-24 | 2014-03-24 | A kind of flow transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204346524U true CN204346524U (en) | 2015-05-20 |
Family
ID=53229786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420132055.3U Expired - Lifetime CN204346524U (en) | 2014-03-24 | 2014-03-24 | A kind of flow transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204346524U (en) |
-
2014
- 2014-03-24 CN CN201420132055.3U patent/CN204346524U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20190729 Address after: Room 2207, Building 4, No. 1 Zizhuyuan Road, Haidian District, Beijing 100018 Patentee after: BEIJING KELIDA HONGYE SCIENCE AND TRADE CO.,LTD. Address before: 08B, Block D, 8th Floor, No. 28 Information Road, Haidian District, Beijing 100085 Patentee before: BEIJING ZHONGBANG SANCHENG TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20150520 |