CN204649279U - A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system - Google Patents
A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system Download PDFInfo
- Publication number
- CN204649279U CN204649279U CN201520252523.5U CN201520252523U CN204649279U CN 204649279 U CN204649279 U CN 204649279U CN 201520252523 U CN201520252523 U CN 201520252523U CN 204649279 U CN204649279 U CN 204649279U
- Authority
- CN
- China
- Prior art keywords
- flow meter
- thermal type
- type gas
- gas quality
- quality flow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a kind of full-automatic direct insertion thermal type gas quality flow meter calibration system, wherein: AC power is by the feeder ear of frequency converter connecting fan, the outlet air end of blower fan is disposed with steady-flow tank, standard scale and thermal type gas quality flow meter along its air-out direction, be connected by the first pipeline conducting between blower fan with steady-flow tank, be connected by second pipe conducting between steady-flow tank with standard scale, standard scale is connected by the 3rd pipeline conducting with thermal type gas quality flow meter; Direct supply is powered to standard scale, thermal type gas quality flow meter and main control computer respectively, and the digital output end of standard scale and thermal type gas quality flow meter connects the input end of main control computer respectively, and the control output end of main control computer connects frequency converter; The utility model successfully solves product in prior art and demarcates a large amount of financial resources and manpower that spend, and this calibration system accuracy is high, easy and simple to handle, is suitable for popularization energetically and use.
Description
Technical field
The utility model belongs to thermal type gas quality flow monitoring field, particularly a kind of full-automatic direct insertion thermal type gas quality flow meter calibration system.
Background technology
At present, thermal type gas quality flow meter is applied in the fluid measurement of oil, rock gas, water treatment, chemistry, papermaking, electric power, food and pharmaceuticals industry widely, thermal type gas quality flow meter has without the need to temperature pressure compensation, installs advantage that is simple and pressure-resistant corrosion-resistant, measurable range is wide, can survey large-caliber flow.
Phase early 1990s, world wide TMF consumption sum accounts for 8% of flow instrument, about 4.5 ten thousand, domestic the mid-90 sales volume be about annual about 1000, just there is thermal type gas quality flow meter in recent years; The comparative maturity of external thermal type gas quality flow meter development, is domesticly also in the infancy, and on market, product quantity is less, so the kind of calibration system is just more rare.
Calibration system of the prior art is mainly divided into 3 classes: bell-jar calibration system, sonic nozzle formula calibration system, standard table calibration system; Wherein, bell-jar caliberating device: by the volume of bell jar measurement gas, by densitometer and gauge measurement correlation parameter, calculates the mass rate of gas finally by formula; But bell-jar caliberating device and sonic nozzle formula caliberating device involve great expense and can reach 30 ten thousand to 100 ten thousand yuan, only have some metering institutes and have the institution of higher learning of gas flow research project just to have corresponding caliberating device, meanwhile, bell-jar calibration system maintenance cost is high, equipment needed thereby is various and take up room large;
Sonic nozzle caliberating device: by carrying out the mass rate of gas in calibration pipeline to the gaseous mass of ejection of metering sonic nozzle, its exist equally expensive, maintenance cost is high and the large shortcoming that takes up room.
At present, direct insertion thermal type gas quality flow meter needs just can normally use after demarcating, and owing to buying, calibration facility involves great expense, the nominal time is long, needs demarcation personnel substantial length of operation, wastes time and energy in use procedure; The purpose of this utility model is a calibration system being applicable to direct insertion thermal type gas quality flow meter of design.
Utility model content
Technical problem to be solved in the utility model is, overcome the shortcoming of prior art, a kind of full-automatic direct insertion thermal type gas quality flow meter calibration system is provided, successfully solve product in prior art and demarcate a large amount of financial resources and manpower that spend, and this calibration system accuracy is high, easy and simple to handle, be suitable for popularization energetically and use.
In order to solve above technical matters, the utility model provides a kind of full-automatic direct insertion thermal type gas quality flow meter calibration system, comprise main control computer, AC power, direct supply, frequency converter, blower fan, steady-flow tank, standard scale and thermal type gas quality flow meter, wherein:
AC power is by the feeder ear of frequency converter connecting fan, the outlet air end of blower fan is disposed with steady-flow tank, standard scale and thermal type gas quality flow meter along its air-out direction, be connected by the first pipeline conducting between blower fan with steady-flow tank, be connected by second pipe conducting between steady-flow tank with standard scale, standard scale is connected by the 3rd pipeline conducting with thermal type gas quality flow meter;
Direct supply is powered to standard scale, thermal type gas quality flow meter and main control computer respectively, and the digital output end of standard scale and thermal type gas quality flow meter connects the input end of main control computer respectively, and the control output end of main control computer connects frequency converter;
Technique effect: in prior art, need to go to demarcate to the laboratory of other satisfied demarcation conditions, product is demarcated at every turn to be needed to spend thousands of unit, then company saves the expense of hundreds of thousands every year, and calibration system accuracy designed by the utility model is high, easy and simple to handle, be suitable for popularization energetically and use.
The technical scheme that the utility model limits further is:
Further, aforesaid full-automatic direct insertion thermal type gas quality flow meter calibration system, AC power specification is 380V, and power is greater than 30KW, and the specification of direct supply is 24V/1A, and the power of blower fan and frequency converter is 15KW, and standard scale selects turbo flow meter.
Aforesaid full-automatic direct insertion thermal type gas quality flow meter calibration system, first, second and third pipeline is stainless-steel tube, and the internal diameter of the first pipeline is 200mm, and the internal diameter of second, third pipeline is 100mm, the length of second pipe is 2 meters, and the length of the 3rd pipeline is 1 meter;
Technique effect: the front end pipeline section demand fulfillment due to calibration facility is more than or equal to the distance of 10 times of calibers, in the utility model, the interior strength of pipeline selects 1 meter, so not only meet the technical requirement of demarcation, greatly reduce the shortcoming that calibration system floor area is large simultaneously.
Aforesaid full-automatic direct insertion thermal type gas quality flow meter calibration system, steady-flow tank comprises both ends open and the cylindrical tank vertically arranged, its both ends open portion is welded with semicircle cover body respectively, on tank body near top and near bottom position respectively conducting be provided with gas vent and gas access, the opening direction of gas vent and gas access is completely contrary, and the axis of gas vent and gas access is parallel to each other and crossing with the axis of cylindrical tank respectively;
The material of steady-flow tank is stainless steel, the internal diameter 300mm of cylindrical tank, and length is 1 meter, and the internal diameter of semicircle cover body is the semicircle of 300mm, and gas access and gas vent connect the first and second pipelines respectively.
Technique effect: the design of semicircle cover body enables gas in the inner smooth inflow and outflow of steady-flow tank, through the effect that test of many times draws length 1 meter, the cylindrical tank of diameter 300mm can either meet current stabilization, simultaneously again can not the maximum flow of impact to voltage blower fan, ensure that demarcate can be accurately strict carrying out.
Accompanying drawing explanation
The structure principle chart of the full-automatic direct insertion thermal type gas quality flow meter calibration system of Fig. 1 designed by the utility model;
Fig. 2 is the structural representation of barretter in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
embodiment 1
As shown in Figure 1, the full-automatic direct insertion thermal type gas quality flow meter calibration system of the one that the present embodiment provides, comprises main control computer, AC power, direct supply, frequency converter, blower fan, steady-flow tank, standard scale and thermal type gas quality flow meter, wherein:
AC power is by the feeder ear of frequency converter connecting fan, the outlet air end of blower fan is disposed with steady-flow tank, standard scale and thermal type gas quality flow meter along its air-out direction, be connected by the first pipeline conducting between blower fan with steady-flow tank, be connected by second pipe conducting between steady-flow tank with standard scale, standard scale is connected by the 3rd pipeline conducting with thermal type gas quality flow meter;
Direct supply is powered to standard scale, thermal type gas quality flow meter and main control computer respectively, and the digital output end of standard scale and thermal type gas quality flow meter connects the input end of main control computer respectively, and the control output end of main control computer connects frequency converter.
The specific works principle of the present embodiment is:
First opening direct supply is that standard scale, thermal type gas quality flow meter and main control computer are powered;
Main control computer controls the frequency of operation of frequency converter, and opening AC power, is that blower fan is powered by frequency converter;
The air of blower fan blowout enters steady-flow tank through the first pipeline, now the air of flow speed stability is through second pipe Engage of standard table, enter thermal type gas quality flow meter through the 3rd pipeline again, because the pressure in second pipe is steady, standard scale produces the mass flow value of one group of standard;
Main control computer gathers the mass flow value of standard, and is synchronized to thermal type gas quality flow meter, is mated voluntarily, namely obtain the 1st group of calibration point by thermal type gas quality flow meter;
Subsequently, main control computer controls frequency converter and changes frequency of operation, and repeats the matching operation of thermal type gas quality flow meter in above-mentioned application, to the demarcation namely completing direct insertion thermal type gas quality flow meter after obtaining 25 groups of calibration points;
Main control computer controls frequency converter incrementally to change frequency of operation, and the amplitude that increases progressively is 2Hz, when namely obtaining the 1st group of calibration point, the frequency of operation of frequency converter is 2Hz, when obtaining the 25th group of calibration point, the frequency of operation of frequency converter is 50Hz, and meanwhile, the main control computer adjacent time interval controlling frequency converter change frequency of operation for twice is 2min;
AC power specification is 380V, and power is greater than 30KW, and the specification of direct supply is 24V/1A, and the power of blower fan and frequency converter is 15KW, and standard scale selects turbo flow meter.
First, second and third pipeline is stainless-steel tube, and the internal diameter of the first pipeline is 200mm, and the internal diameter of second, third pipeline is 100mm, and the length of second pipe is 2 meters, and the length of the 3rd pipeline is 1 meter;
As shown in Figure 2, steady-flow tank comprises both ends open and the cylindrical tank vertically arranged, its both ends open portion is welded with semicircle cover body respectively, on tank body near top and near bottom position respectively conducting be provided with gas vent and gas access, the opening direction of gas vent and gas access is completely contrary, and the axis of gas vent and gas access is parallel to each other and crossing with the axis of cylindrical tank respectively;
The material of steady-flow tank is stainless steel, the internal diameter 300mm of cylindrical tank, and length is 1 meter, and the internal diameter of semicircle cover body is the semicircle of 300mm, and gas access and gas vent connect the first and second pipelines respectively.
Above embodiment is only and technological thought of the present utility model is described; protection domain of the present utility model can not be limited with this; every technological thought according to the utility model proposes, any change that technical scheme basis is done, all falls within the utility model protection domain.
Claims (4)
1. a full-automatic direct insertion thermal type gas quality flow meter calibration system, is characterized in that, comprise main control computer, AC power, direct supply, frequency converter, blower fan, steady-flow tank, standard scale and thermal type gas quality flow meter, wherein:
Described AC power is by the feeder ear of frequency converter connecting fan, the outlet air end of described blower fan is disposed with steady-flow tank, standard scale and thermal type gas quality flow meter along its air-out direction, described blower fan is connected by the first pipeline conducting with between steady-flow tank, described steady-flow tank is connected by second pipe conducting with between standard scale, and described standard scale is connected by the 3rd pipeline conducting with thermal type gas quality flow meter;
Described direct supply is powered to standard scale, thermal type gas quality flow meter and main control computer respectively, and the digital output end of described standard scale and thermal type gas quality flow meter connects the input end of main control computer respectively, and the control output end of described main control computer connects frequency converter.
2. full-automatic direct insertion thermal type gas quality flow meter calibration system according to claim 1, it is characterized in that, described AC power specification is 380V, power is greater than 30KW, the specification of described direct supply is 24V/1A, the power of described blower fan and frequency converter is 15KW, and described standard scale selects turbo flow meter.
3. full-automatic direct insertion thermal type gas quality flow meter calibration system according to claim 1 and 2, it is characterized in that, described first, second and third pipeline is stainless-steel tube, the internal diameter of the first pipeline is 200mm, the internal diameter of second, third pipeline is 100mm, the length of described second pipe is 2 meters, and the length of described 3rd pipeline is 1 meter.
4. full-automatic direct insertion thermal type gas quality flow meter calibration system according to claim 3, it is characterized in that, described steady-flow tank comprises both ends open and the cylindrical tank vertically arranged, its both ends open portion is welded with semicircle cover body respectively, on described tank body near top and near bottom position respectively conducting be provided with gas vent and gas access, the opening direction of described gas vent and gas access is completely contrary, and the axis of described gas vent and gas access is parallel to each other and crossing with the axis of cylindrical tank respectively;
The material of described steady-flow tank is stainless steel, the internal diameter 300mm of cylindrical tank, and length is 1 meter, and the internal diameter of semicircle cover body is the semicircle of 300mm, and gas access and gas vent connect the first and second pipelines respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252523.5U CN204649279U (en) | 2015-04-23 | 2015-04-23 | A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520252523.5U CN204649279U (en) | 2015-04-23 | 2015-04-23 | A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204649279U true CN204649279U (en) | 2015-09-16 |
Family
ID=54102019
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520252523.5U Active CN204649279U (en) | 2015-04-23 | 2015-04-23 | A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204649279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764510A (en) * | 2015-04-23 | 2015-07-08 | 江苏博克斯自动化控制工程有限公司 | Calibration system for full-automatic direct-inserted hot type gas mass-flow meter and application thereof |
-
2015
- 2015-04-23 CN CN201520252523.5U patent/CN204649279U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104764510A (en) * | 2015-04-23 | 2015-07-08 | 江苏博克斯自动化控制工程有限公司 | Calibration system for full-automatic direct-inserted hot type gas mass-flow meter and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203811492U (en) | Closed type pipeline cycle erosion test device | |
| CN103247358A (en) | High-energy pipeline local leakage monitoring test bed for nuclear power station | |
| CN106125776A (en) | Devices and methods therefor steam flow being evaporated, measure and automatically controlling | |
| CN204228242U (en) | A kind of flow measurement electricity testing device | |
| CN204649279U (en) | A kind of full-automatic direct insertion thermal type gas quality flow meter calibration system | |
| CN202255615U (en) | Device for measuring sound speed of gas and liquid two-phase flow | |
| CN204575153U (en) | A kind of high-precision ultrasonic water meter | |
| CN202430357U (en) | Wet steam regulation and control system | |
| CN105444844A (en) | Movable type standard meter method flowmeter calibrating device | |
| CN104764510A (en) | Calibration system for full-automatic direct-inserted hot type gas mass-flow meter and application thereof | |
| CN203772325U (en) | Integral pore plate flowmeter | |
| CN105716691A (en) | Flow meter calibration test bed | |
| CN203561409U (en) | Detector for detecting gas flow meter with bell jar type device serving as standard device | |
| CN204988444U (en) | Movable equipment of ability varying flow standard device medium flow direction | |
| CN204154517U (en) | A kind of wall-hung boiler proving installation | |
| CN204388980U (en) | Nozzle sets formula gas meter calibrating installation | |
| CN203132945U (en) | Solid content measurement device in desalting evaporation device | |
| CN106125775A (en) | Based on devices and methods therefor steam flow being evaporated, measure and controlling | |
| CN202351147U (en) | On-line density measuring device for crude oil | |
| CN203069218U (en) | Uniform-velocity tube flowmeter | |
| CN203534679U (en) | Correction system of orifice plate flow meter | |
| CN202903376U (en) | Double-Pi-shaped calorimeter pipe segment | |
| CN106197591A (en) | Based on devices and methods therefor steam flow being evaporated, measure and regulating | |
| CN204924342U (en) | Can reduce pressure differential mechanism of amplification of lye influence | |
| CN208928206U (en) | Cleaning inside degree testing stand with controlled variable |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 224700 No. 88 Jinglu High-tech Economic Zone, Jianhu County, Yancheng City, Jiangsu Province Patentee after: Jiangsu Box Technology Co., Ltd. Address before: 224700 No. 88 Jingliu Road, Jianhu County, Yancheng City, Jiangsu Province Patentee before: This automation control engineering company limited of Jiangsu Bock |