CN102768059A - On-line checking method of cold side air quantity of heat radiator test table - Google Patents
On-line checking method of cold side air quantity of heat radiator test table Download PDFInfo
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- CN102768059A CN102768059A CN2012102329461A CN201210232946A CN102768059A CN 102768059 A CN102768059 A CN 102768059A CN 2012102329461 A CN2012102329461 A CN 2012102329461A CN 201210232946 A CN201210232946 A CN 201210232946A CN 102768059 A CN102768059 A CN 102768059A
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- air
- heating radiator
- cold limit
- flowmeter
- pipe line
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Abstract
The invention is applicable to the field of a heat radiator performance test device and measuring occasions of other fan air quantity and large-scale regular air passages. The invention has the technical scheme that a cold side air pipeline 1 of a heat radiator test device is provided with a rectifier 5, and an air meter installing hole 4 is additionally arranged in front of a flow rate meter 2. During the regular checking, the air meter installing hole 4 is opened, an air meter is inserted for measuring the air speed value of the average velocity point, then, the air quantity values in the measuring range of the flow rate meter 2 are compared point by point, and the regular on-site comparison of the flow rate meter 2 is completed. The invention provides a checking method of the flow rate meter in a large-air-quantity measuring occasion, the regular checking of the flow rate meter for measuring the air quantity becomes feasible, and the system errors such as installation errors of the flow rate meter can be eliminated.
Description
Affiliated technical field
Invention belongs to radiator performance test unit field, relates to the measurement occasion in other fan delivery and large-scale regular air channel.
Background technology
Heating radiator is widely used in industries such as Aero-Space, air-conditioning manufacturing, automobile making.The radiator performance proving installation is the testing equipment of radiator performance test; Usually adopt the air-breathing or air blast analog radiator cold limit ventilation of blower fan, the airduct relative aperture is bigger, and the flowmeter of supporting measurement air quantity is heavy; Dismounting inconvenience; The installment state of flowmeter often can not satisfy the installation requirement of flowmeter simultaneously, has alignment error, causes measuring error bigger.
Summary of the invention
The objective of the invention is: overcome cold limit flowmeter dismounting in the radiator testing equipment and check the problem that inconvenience and alignment error cause measuring error.The present invention utilizes airduct wind speed such as air quantity under the perfect condition of flow field in the cold limit of radiator testing equipment to take advantage of the principle of area; Before and after flowmeter, reserve enough straight lengths or install the even flow field that rectifier makes the flowmeter front and back additional, realize the measurement of air quantity then through measuring wind.Effectively solved the problem of flowmeter dismounting inconvenience and alignment error in the radiator testing equipment, and simple, feasible, reliable, solved the accuracy and the online comparison check problem of flowmeter survey in the radiator testing equipment.
Technical scheme of the present invention is:
Step 1: the cold limit of heating radiator testing table is mainly by the cold limit of the heating radiator that the is used for air measuring air pipe line 1 that air compartment, blower fan and connection air compartment and blower fan are installed by the examination heating radiator, and the flowmeter 2 that is used to measure air quantity is installed in air pipe line 1 middle part, the cold limit of heating radiator;
Step 2: on the cold limit of heating radiator in flowmeter 2 the place aheads air pipe line 1, air pipe line 1 radial direction is vertically installed wind gage mounting hole 4 along the cold limit of heating radiator, and wind gage mounting hole 4 has blocking cap 6;
Step 2: during periodic check; Take off blocking cap 6, on wind gage mounting hole 4, insert wind gage, measure the air speed value of the cold limit of heating radiator air pipe line 1 mean flow rate point; According to the airflow value in meter proof rules pointwise comparison flowmeter 2 range abilities, accomplish the regular on-the-spot comparison of flowmeter 2 then;
Step 3: extract wind gage after the verification, blocking cap 6 is installed.
Advantage of the present invention is: the radiator performance proving installation is the testing equipment of radiator performance test; Usually adopt the cold limit of the air-breathing analog radiator of blower fan to ventilate, the airduct relative aperture is bigger, and the flowmeter of supporting measurement air quantity is heavy; Dismounting inconvenience; The installment state of flowmeter often can not satisfy the installation requirement of flowmeter simultaneously, has alignment error, causes measuring error bigger; So measuring the flowmeter of air quantity usually just has no idea regularly to have removed verification again on the equipment of dress after the verification before installation; Also exist a problem to be simultaneously because the airduct relative aperture is bigger, and the mounting condition of flowmeter can not be fully satisfied, just there is alignment error in flowmeter; The present invention has just thoroughly solved the flowmeter check problem of measuring air quantity, has made the flowmeter periodic check of measuring the air quantity feasible and of the present invention method of calibration that becomes can eliminate the systematic errors such as installation of flowmeter.
Description of drawings
Fig. 1---heating radiator on-line testing method synoptic diagram
The cold limit of 1-heating radiator air pipe line
The 2-flowmeter
The 3-blower fan
4-wind gage mounting hole
The 5-rectifier
The 6-blocking cap
Embodiment
With reference to figure 1, radiator testing equipment air quantity inlet ductwork caliber is 1000mm, and flow is 3000kg/h.The caliber of flowmeter 2 is big, and quality is heavy, inconvenient installation.In experiment, take following steps:
Step 1: the cold limit of heating radiator testing table is mainly by the cold limit of the heating radiator that the is used for air measuring air pipe line 1 that air compartment, blower fan and connection air compartment and blower fan are installed by the examination heating radiator; The flowmeter 2 that is used to measure air quantity is installed in air pipe line 1 middle part, the cold limit of heating radiator, and rectifier 5 is installed at the two ends of cold limit air pipe line 1;
Step 2: on the cold limit of heating radiator in flowmeter 2 the place aheads air pipe line 1, air pipe line 1 radial direction is vertically installed wind gage mounting hole 4 along the cold limit of heating radiator, and wind gage mounting hole 4 has blocking cap 6;
Step 2: during periodic check; Take off blocking cap 6, on wind gage mounting hole 4, insert wind gage, measure the air speed value of the cold limit of heating radiator air pipe line 1 mean flow rate point; According to the airflow value in meter proof rules pointwise comparison flowmeter 2 range abilities, accomplish the regular on-the-spot comparison of flowmeter 2 then;
Step 3: extract wind gage after the verification, blocking cap 6 is installed, shutoff wind gage mounting hole 4.
Claims (2)
1. the on-line testing method of the cold limit of a heating radiator testing table air quantity is characterized in that:
Step 1: mainly by the cold limit of the heating radiator that the is used for air measuring air pipe line (1) that air compartment, blower fan and connection air compartment and blower fan are installed by the examination heating radiator, the flowmeter (2) that is used to measure air quantity is installed in the cold limit of heating radiator air pipe line (1) middle part on heating radiator testing table cold limit;
Step 2: on the cold limit of the heating radiator air pipe line (1) in flowmeter (2) the place ahead, along the cold limit of heating radiator air pipe line (1) radial direction wind gage mounting hole (4) is installed vertically, wind gage mounting hole (4) has blocking cap (6);
Step 2: during periodic check; Take off blocking cap (6); Go up the insertion wind gage at wind gage mounting hole (4); Measure the air speed value of heating radiator cold limit air pipe line (1) mean flow rate point, according to the airflow value in meter proof rules pointwise comparison flowmeter (2) range ability, accomplish the regular on-the-spot comparison of flowmeter (2) then;
Step 3: extract wind gage after the verification, blocking cap (6) is installed.
2. the on-line testing method of the cold limit of a kind of heating radiator testing table as claimed in claim 1 air quantity is characterized in that: rectifier (5) is installed at the two ends at the cold limit of radiator testing equipment air pipe line (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102329461A CN102768059A (en) | 2012-07-06 | 2012-07-06 | On-line checking method of cold side air quantity of heat radiator test table |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102329461A CN102768059A (en) | 2012-07-06 | 2012-07-06 | On-line checking method of cold side air quantity of heat radiator test table |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102768059A true CN102768059A (en) | 2012-11-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102329461A Pending CN102768059A (en) | 2012-07-06 | 2012-07-06 | On-line checking method of cold side air quantity of heat radiator test table |
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| CN (1) | CN102768059A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486275A (en) * | 2021-12-29 | 2022-05-13 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining cold side flow of airborne air radiator |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201387355Y (en) * | 2009-03-06 | 2010-01-20 | 温州市安能机械有限公司 | Detection device for automobile air-flow meter |
| CN102116667A (en) * | 2011-01-14 | 2011-07-06 | 重庆工业自动化仪表研究所 | Large-aperture gas flow calibration device capable of providing two flow fields |
| TWI354776B (en) * | 2007-12-26 | 2011-12-21 | Univ Kun Shan | A flow velocity monitor and method of using the sa |
| CN202304962U (en) * | 2011-10-24 | 2012-07-04 | 重庆市计量质量检测研究院 | Air tunnel type speed-area-method air flow calibration device |
-
2012
- 2012-07-06 CN CN2012102329461A patent/CN102768059A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI354776B (en) * | 2007-12-26 | 2011-12-21 | Univ Kun Shan | A flow velocity monitor and method of using the sa |
| CN201387355Y (en) * | 2009-03-06 | 2010-01-20 | 温州市安能机械有限公司 | Detection device for automobile air-flow meter |
| CN102116667A (en) * | 2011-01-14 | 2011-07-06 | 重庆工业自动化仪表研究所 | Large-aperture gas flow calibration device capable of providing two flow fields |
| CN202304962U (en) * | 2011-10-24 | 2012-07-04 | 重庆市计量质量检测研究院 | Air tunnel type speed-area-method air flow calibration device |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114486275A (en) * | 2021-12-29 | 2022-05-13 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining cold side flow of airborne air radiator |
| CN114486275B (en) * | 2021-12-29 | 2023-06-20 | 中国航空工业集团公司西安飞机设计研究所 | Method for determining cold edge flow of airborne air radiator |
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Application publication date: 20121107 |