CN204346551U - A kind of gas flow sensor calibrating installation - Google Patents
A kind of gas flow sensor calibrating installation Download PDFInfo
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- CN204346551U CN204346551U CN201420857751.0U CN201420857751U CN204346551U CN 204346551 U CN204346551 U CN 204346551U CN 201420857751 U CN201420857751 U CN 201420857751U CN 204346551 U CN204346551 U CN 204346551U
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- flow sensor
- ajutage
- gas flow
- calibrating installation
- mount pad
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Abstract
The utility model discloses a kind of gas flow sensor calibrating installation, comprise mount pad and blower fan, mount pad is installed with ajutage, described ajutage is provided with air outlet, described air outlet is connected with the air outlet of blower fan, described ajutage be provided with for by respective alignment flow sensor and be calibrated flow sensor access ajutage insertion joint, the equal diameters of described insertion joint, calibrating installation of the present utility model can be calibrated gas flow sensor easily.
Description
Technical field
The utility model relates to flow sensor field, particularly a kind of gas flow sensor calibrating installation.
Background technology
in current commercial production, owing to having, the pressure loss is little, range ability is large, precision is high for plug-in type pipe gas flow inductor, when Test Cycle gas flow hardly by the feature of the parameter influences such as gas density, pressure, temperature, being widely used in the flow measurement of various industrial pipeline gas, is a kind of more advanced, desirable gas flow instrument.Existing gas flow sensor has the air intake pipeline section be connected with ajutage and the pipeline section of giving vent to anger gas being entered air, the accuracy of this gas flow inductor is general all at 0.5 grade, 1 grade, so generally have following several verification mode to its inspection: 1, use sonic nozzle standard set-up to carry out demarcation verification to this gas flow sensor; 2, use low-speed wind tunnel to add pitot tube and carry out demarcation verification; 3, by bell jar process, demarcation verification is carried out to this.These three kinds of scaling methods equipment used is general all bulky, expensive, easily hundreds of thousands is up to a million, and general user can not purchase this equipment, if this just causes user suspect that sensor measurement is unpunctual, can only test by return-to-factory, use to user and bring inconvenience.
Utility model content
The purpose of this utility model is to provide a kind of gas flow sensor calibrating installation, can calibrate gas flow sensor easily.
A kind of gas flow sensor calibrating installation, comprise mount pad and blower fan, mount pad is installed with ajutage, described ajutage is provided with air outlet, described air outlet is connected with the air outlet of blower fan, described ajutage be provided with for by respective alignment flow sensor and be calibrated flow sensor access ajutage insertion joint, the equal diameters of described insertion joint.
Described mount pad is provided with the electrical control gear for regulating and controlling blower fan wind speed.
The length L1 of described insertion joint is greater than 7 times of described ajutage diameter D, the length L2 of the normal flow sensor being arranged at described access plug accordingly and the pipeline section of giving vent to anger being calibrated flow sensor is greater than 4 times of described ajutage diameter D, the diameter of described ajutage and the equal diameters of described insertion joint.
Described insertion joint is two and side by side every being located on ajutage.
The junction of described insertion joint and ajutage is provided with O-ring seal.
Described assembling, on mount pad, described mount pad is provided with screw thread cushion block, together with described ajutage is bolted with screw thread cushion block.
To achieve these goals, the utility model adopts following technical scheme:
The beneficial effects of the utility model are: normal flow sensor, the flow sensor be calibrated can be responded to the air-flow in gas channels, corresponding flow value can be shown, by regulating the different gears of blower fan, the air-flow of different in flow rate can be produced in the channel, poor by the indicating value compared between two sensors, just can judge that whether tested gas flow sensor creates larger deviation, can determine the accuracy of the flow sensor be calibrated, convenient for users.
Further, the length L1 inserting joint is set to 7 times that are greater than ajutage diameter D, normal flow sensor and the length L2 of pipeline section of giving vent to anger that is calibrated flow sensor are set to 4 times of dust diameter D, and ensure the diameter of ajutage and the equal diameters inserting joint, further can ensure that the flow indicating value of sensor keeps stable in certain scope.
Accompanying drawing explanation
Fig. 1 is the gas flow sensor calibrating installation schematic diagram in embodiment of the present utility model.
Embodiment
Embodiment of the present utility model, as shown in Figure 1: the gas flow sensor calibrating installation in this embodiment, comprise mount pad 2, ajutage 4, blower fan 3, electrical control gear, normal flow sensor 5, be calibrated flow sensor 6 and be all installed on mount pad 2, mount pad is provided with screw thread cushion block 7, together with ajutage 4 is bolted with screw thread cushion block 7.Here electric apparatus control apparatus is electric control box 1.
Ajutage 4 is provided with two for by respective alignment flow sensor 5 be calibrated the insertion joint 8 and 9 that flow sensor 6 accesses ajutage, the equal diameters of two insertion joints 8 and 9, insert joint 8 and there is the air intake opening 81 be communicated with ajutage, insert joint 9 and there is the air intake opening 91 be communicated with ajutage, calibrated fluxes sensor 5 also has the pipeline section 10 and 11 of giving vent to anger of gas discharge with being calibrated on flow sensor 6, the pipeline section 10 of giving vent to anger of normal flow sensor 5 has the gas outlet 102 gas being passed into air, be calibrated flow sensor 6 pipeline section 11 of giving vent to anger and there is the gas outlet 112 gas being passed into air.
In this enforcement, the length inserting joint 8,9 is 7.5 times of ajutage 4 diameter, normal flow sensor and the length of the pipeline section 10,11 of giving vent to anger being calibrated flow sensor are 4.5 times of ajutage 4 diameter, diameter and the equal diameters inserting joint of ajutage, can ensure that the flow indicating value of sensor keeps stable in certain scope completely like this, steady air current at the uniform velocity, flow error controls in certain scope.Normal flow sensor be calibrated flow sensor side by side every being located on ajutage.Insert the air intake opening 81,91 of joint and respectively the junction of ajutage 4 be provided with O-ring seal, calibrated fluxes sensor be calibrated flow sensor and be provided with O-ring seal with the junction of pipeline section of giving vent to anger respectively.
Gas flow sensor calibrating installation in this embodiment in use, the power supply of engaging means, and the flow sensor logical required direct supply respectively given normal flow sensor, be calibrated, after treating that flow sensor initialization terminates, open the power switch of blower fan, start according to circumstances to dry in pipeline, to produce the air-flow of certain flow rate in the channel, now normal flow sensor, the flow sensor that is calibrated can show respective streams value.By regulating the different wind speed of blower fan, can the air-flow of product different in flow rate in the channel, the indicating value that now just can compare between two sensors is poor, to judge whether tested sensor creates larger deviation and need depot repair.After tested, the flow indicating value of two flow sensors in this device difference is general within 5%, can judge whether flow sensor creates fault and need to return manufacturing firm and carry out maintenance demarcation well.
In other embodiments of the present utility model, the length inserting joint is greater than 8 times or 9 times of ajutage diameter, the length of the normal flow sensor being arranged at described access plug accordingly and the pipeline section of giving vent to anger being calibrated flow sensor is greater than 5 times of described ajutage diameter D, also can be 6 times;
In other embodiments, normal flow sensor be calibrated that flow sensor is vertically opposite to be arranged on ajutage; Blower fan also can directly be installed on ground, as long as can blow to ajutage.
Claims (6)
1. a gas flow sensor calibrating installation, comprise mount pad and blower fan, mount pad is installed with ajutage, it is characterized in that: described ajutage is provided with air outlet, described air outlet is connected with the air outlet of blower fan, described ajutage be provided with for by respective alignment flow sensor and be calibrated flow sensor access ajutage insertion joint, the equal diameters of described insertion joint.
2. gas flow sensor calibrating installation according to claim 1, is characterized in that: described mount pad is provided with the electrical control gear for regulating and controlling blower fan wind speed.
3. gas flow sensor calibrating installation according to claim 1, it is characterized in that: the length L1 of described insertion joint is greater than 7 times of described ajutage diameter D, the length L2 of the normal flow sensor being arranged at described access plug accordingly and the pipeline section of giving vent to anger being calibrated flow sensor is greater than 4 times of described ajutage diameter D, the diameter of described ajutage and the equal diameters of described insertion joint.
4. gas flow sensor calibrating installation according to claim 1 and 2, is characterized in that: described insertion joint is two and side by side every being located on ajutage.
5. gas flow sensor calibrating installation according to claim 1 and 2, is characterized in that: the junction of described insertion joint and ajutage is provided with O-ring seal.
6. gas flow sensor calibrating installation according to claim 1 and 2, is characterized in that: described assembling, on mount pad, described mount pad is provided with screw thread cushion block, together with described ajutage is bolted with screw thread cushion block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857751.0U CN204346551U (en) | 2014-12-30 | 2014-12-30 | A kind of gas flow sensor calibrating installation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420857751.0U CN204346551U (en) | 2014-12-30 | 2014-12-30 | A kind of gas flow sensor calibrating installation |
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| Publication Number | Publication Date |
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| CN204346551U true CN204346551U (en) | 2015-05-20 |
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| CN201420857751.0U Active CN204346551U (en) | 2014-12-30 | 2014-12-30 | A kind of gas flow sensor calibrating installation |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628149A (en) * | 2016-03-17 | 2016-06-01 | 农业部沼气科学研究所 | Flow calibration device for methane conveying pipeline |
| CN107202624A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test device |
| CN107202625A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test system |
| CN107367312A (en) * | 2017-06-28 | 2017-11-21 | 安徽盛洲汽车部件有限公司 | A kind of mass air flow sensor method of testing |
| CN107389874A (en) * | 2017-08-24 | 2017-11-24 | 南京泰宇环境检测有限公司 | A kind of monitoring method for monitoring of environmental detection device accuracy |
| CN107462305A (en) * | 2017-08-08 | 2017-12-12 | 天信仪表集团有限公司 | A kind of flowmeter inline diagnosis method |
| CN110044446A (en) * | 2019-04-04 | 2019-07-23 | 苏州市计量测试院 | A kind of air quantity calibration system |
-
2014
- 2014-12-30 CN CN201420857751.0U patent/CN204346551U/en active Active
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105628149A (en) * | 2016-03-17 | 2016-06-01 | 农业部沼气科学研究所 | Flow calibration device for methane conveying pipeline |
| CN107202624A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test device |
| CN107202625A (en) * | 2017-06-28 | 2017-09-26 | 安徽盛洲汽车部件有限公司 | Mass air flow sensor test system |
| CN107367312A (en) * | 2017-06-28 | 2017-11-21 | 安徽盛洲汽车部件有限公司 | A kind of mass air flow sensor method of testing |
| CN107202625B (en) * | 2017-06-28 | 2020-05-19 | 安徽盛洲汽车部件有限公司 | Air flow meter test system |
| CN107202624B (en) * | 2017-06-28 | 2020-05-19 | 安徽盛洲汽车部件有限公司 | Air flow meter testing device |
| CN107462305A (en) * | 2017-08-08 | 2017-12-12 | 天信仪表集团有限公司 | A kind of flowmeter inline diagnosis method |
| CN107389874A (en) * | 2017-08-24 | 2017-11-24 | 南京泰宇环境检测有限公司 | A kind of monitoring method for monitoring of environmental detection device accuracy |
| CN110044446A (en) * | 2019-04-04 | 2019-07-23 | 苏州市计量测试院 | A kind of air quantity calibration system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee after: Power Polytron Technologies Inc Address before: 450001 Henan city of Zhengzhou province high tech Industrial Development Zone Long Chun Road No. 10 Patentee before: Zhengzhou GL Tech Company |
|
| CP01 | Change in the name or title of a patent holder |