CN201016868Y - Dynamic property testing device for air quantity control valve - Google Patents
Dynamic property testing device for air quantity control valve Download PDFInfo
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- CN201016868Y CN201016868Y CNU2006200485681U CN200620048568U CN201016868Y CN 201016868 Y CN201016868 Y CN 201016868Y CN U2006200485681 U CNU2006200485681 U CN U2006200485681U CN 200620048568 U CN200620048568 U CN 200620048568U CN 201016868 Y CN201016868 Y CN 201016868Y
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- valve
- air
- fan
- airduct
- air duct
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Abstract
An air volume regulating valve dynamic performance test device is provided. A fan, a downstream air duct, an air valve to be tested, an upstream air duct and an air inlet pipe are connected through flanges in turn. The bottom of every air duct is equipped with a static pressure measuring hole. Inclined micro-manometers are connected with the static pressure measuring holes through hoses. An inverter is directly connected with the fan. The axial distance between the fan and the adjacent first pair of static pressure measuring holes is at least D (D is the diameter of the air duct). The axial distance on the downstream air duct between the static measuring hole and the air valve to be tested is at least 10D. The axial length of the upstream air duct and the air inlet pipe is at least D. the inverter is adopted to adjust the rotation speed of the fan and change the air flow volume. An inserting plate valve and a tee close to the fan end in an original device are cancelled, which makes the present device have the advantages of simpler structure, more convenient adjustment and more energy saving use. And compared with the original device, the size of the test device can be shortened. The utility model can be widely applied to the dynamic performance detection of various air volume regulating valves.
Description
Technical field
The utility model relates to a kind of volume damper dynamic performance and testing, is to the improvement of existing volume damper dynamic performance and testing structure, belongs to the air door technical field of performance test.
Background technology
The volume damper dynamic performance and testing mainly is used as the process of the test test of volume damper being carried out intrinsic control characteristic and drag characteristic.This device of present domestic use mostly adopts push-pull valve and threeway to regulate flow, complex structure, manual adjustments, inconvenient operation, especially physical dimension is bigger, if dust diameter is made as D, then the axial length of push-pull valve and threeway is 5D just, and the axial effective length of remaining pipes is defined as 20D, if air-valve diameter to be measured is 1m, the pipeline total length is not less than 25m before and after its valve, as seen the shared place of whole test device size is very big, and testing table construction cost is higher, causes the wasting of resources.
Summary of the invention
For overcoming above-mentioned shortcoming, the utility model proposes a kind of volume damper dynamic performance testing modifying device.It comprises change both air flow modulation mode and shortens the axial effective dimensions of test pipe.
The technical solution of the utility model is: adopt frequency converter to regulate rotation speed of fan, change air mass flow, the push-pull valve and the threeway of the close blower fan end in the cancellation original device make existing apparatus structure simpler, regulate more conveniently, use more energy-conservation.And compare with original device, can shorten the test unit overall dimensions.
A kind of volume damper dynamic performance and testing, it comprises: blower fan, tract airduct, tested air-valve, Upstream section airduct, air intake pipe, each BOD has the static pressure ring, and tilting micromanometer is connected with the static pressure ring by flexible pipe, it is characterized in that: blower fan, the tract airduct, tested air-valve, Upstream section airduct, air intake pipe, connect successively by flange, frequency converter directly is connected with blower fan.
Axial distance between blower fan and the adjacent first pair of static opening is at least D, D is a dust diameter, static opening to the axial distance of tract airduct between the tested air-valve is at least 10D, Upstream section airduct static opening is at least D to the axial distance of valve inlet, and Upstream section airduct static opening to the axial length of air intake pipe is at least D.
Adopt frequency converter directly to be connected, can change rotation speed of fan, reach flow regulation, cancel original device and adopt push-pull valve and threeway to regulate the method and structure of air quantity by regulating the frequency of frequency converter with blower fan; The Upstream section airduct that tested air-valve connects, promptly the pipeline axial size of static opening and valve inlet end shortens to D.Carrying out flow field analysis by simulation test can get, D place before valve, flow field reaches stable, therefore, duct length before the valve is removed inlet flow rate meter part, only need to guarantee that the axial distance D to the axial distance D of valve and static opening to Upstream section pipe end inlet flow rate meter of static opening before the valve is total to 2D, just can guarantee the steady state (SS) that valve is preceding; Behind valve, because the initial stable point in flow field is relevant with valve opening behind the valve, valve opening is big more, the duct length that then needs is just more little, if only need to measure the valve characteristic under the full-gear, duct length behind the valve only need guarantee that 4D can reach stable flow field, thereby obtains the characterisitic parameter under the valve wide open state; For the situation of the characterisitic parameter under each different openings of needs test valve, thereby the duct length behind the valve must guarantee that then 10D obtains stable system flow field.
Modifying device is compared with original device, and duct length reduces to 13D by 25D, has not only saved cost, reduce energy resource consumption, and having solved tested diameter valve when big, the problem that required floor area is excessive has increased the versatility and the actual operability of new system.
Description of drawings
Below in conjunction with drawings and Examples the utility model is described in detail.
Accompanying drawing 1 is a kind of volume damper dynamic performance and testing of the utility model structural representation;
Accompanying drawing 2 is existing air-valve test unit structural representations.
1. blower fan, 2. push-pull valve, 3. threeway, 4. push-pull valve, 5. tract airduct, 6. hemispherical dome, 7. tested air-valve,
8. Upstream section airduct, 9. air intake pipe, 10. static opening, 11. tilting micromanometers, 12. frequency converters.
Direction shown in the arrow is the air intake direction among the figure.
Existing air-valve test unit is by blower fan 1, push-pull valve 2, threeway 3, tract airduct 5, hemispherical dome 6, tested air-valve 7, hemispherical dome 6, Upstream section airduct 8, air intake pipe 9 connects successively by flange, each BOD has static opening 10, tilting micromanometer 11 is connected with static opening 10 by flexible pipe, and two arm ends of all the other of threeway are connected with push-pull valve 4, and air quantity is manually to regulate by push-pull valve 2 and threeway 3.Its tested valve back pipeline total length in front of the door is not less than 25D.
Embodiment
The form of present embodiment proving installation is a suction formula airduct.Adopt frequency converter 12 speed governing to change flow, flow measurement and plumbing installation are pipe, and tested air-valve 7 is non-round valve door, and tested air-valve adopts hemispherical dome 6 transition tieing to connect.
A kind of volume damper door dynamic performance and testing, it comprises: blower fan 1, tract airduct 5, hemispherical dome 6, tested air-valve 7, hemispherical dome 6, Upstream section airduct 8, air intake pipe 9, each BOD has static opening 10, tilting micromanometer 11 is connected with static opening 10 by flexible pipe, be characterized in: blower fan 1, tract airduct 5, hemispherical dome 6, tested air-valve 7, hemispherical dome 6, Upstream section airduct 8, air intake pipe 9, connect successively by flange, frequency converter 12 directly is connected with blower fan 1.Axial distance between blower fan and the adjacent first pair of static opening is at least D (D is a dust diameter), static opening to the axial distance of tract airduct between the tested air-valve is at least 10D, the Upstream section airduct static opening that tested air-valve connected is at least D to the axial distance of valve inlet, and Upstream section airduct static opening to the axial length of air intake pipe is at least D.
The utility model is simple in structure, and is easy to adjust, and test performance is accurate, energy-conservation, especially when tested air-valve diameter is big, solved the excessive problem of floor area, can be widely used in the test to all kinds of volume damper dynamic properties.
Claims (2)
1. volume damper dynamic performance and testing, it comprises: blower fan, tract airduct, tested air-valve, Upstream section airduct, air intake pipe, each BOD has the static pressure ring, and tilting micromanometer is connected with the static pressure ring by flexible pipe, it is characterized in that: blower fan, the tract airduct, tested air-valve, Upstream section airduct, air intake pipe, connect successively by flange, frequency converter directly is connected with blower fan.
2. a kind of volume damper dynamic performance and testing according to claim 1, it is characterized in that: the axial distance between blower fan and the adjacent first pair of static opening is at least D, D is a dust diameter, static opening to the axial distance of tract airduct between the tested air-valve is at least 10D, Upstream section airduct static opening is at least D to the axial distance of valve inlet, and Upstream section airduct static opening to the axial length of air intake pipe is at least D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200485681U CN201016868Y (en) | 2006-12-05 | 2006-12-05 | Dynamic property testing device for air quantity control valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200485681U CN201016868Y (en) | 2006-12-05 | 2006-12-05 | Dynamic property testing device for air quantity control valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201016868Y true CN201016868Y (en) | 2008-02-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200485681U Expired - Fee Related CN201016868Y (en) | 2006-12-05 | 2006-12-05 | Dynamic property testing device for air quantity control valve |
Country Status (1)
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| CN (1) | CN201016868Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346102A (en) * | 2011-05-04 | 2012-02-08 | 中国航空工业集团公司西安飞机设计研究所 | Radiator cold side air quantity adjusting device |
| CN102519703A (en) * | 2011-12-20 | 2012-06-27 | 上海显隆通风设备有限公司 | Air terminal air volume balance detection analog device and analog detecting method thereof |
| CN109098995A (en) * | 2017-06-21 | 2018-12-28 | 中车青岛四方机车车辆股份有限公司 | A kind of traction electric machine cooling system air duct and draught fan performance test method and device |
| CN116793663A (en) * | 2023-08-25 | 2023-09-22 | 江苏华东正大空调设备有限公司 | Air valve performance test equipment |
-
2006
- 2006-12-05 CN CNU2006200485681U patent/CN201016868Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102346102A (en) * | 2011-05-04 | 2012-02-08 | 中国航空工业集团公司西安飞机设计研究所 | Radiator cold side air quantity adjusting device |
| CN102519703A (en) * | 2011-12-20 | 2012-06-27 | 上海显隆通风设备有限公司 | Air terminal air volume balance detection analog device and analog detecting method thereof |
| CN102519703B (en) * | 2011-12-20 | 2014-12-10 | 上海显隆通风设备有限公司 | Air terminal air volume balance detection analog device and analog detecting method thereof |
| CN109098995A (en) * | 2017-06-21 | 2018-12-28 | 中车青岛四方机车车辆股份有限公司 | A kind of traction electric machine cooling system air duct and draught fan performance test method and device |
| CN109098995B (en) * | 2017-06-21 | 2020-01-10 | 中车青岛四方机车车辆股份有限公司 | Method and device for testing performance of air duct and fan of traction motor cooling system |
| CN116793663A (en) * | 2023-08-25 | 2023-09-22 | 江苏华东正大空调设备有限公司 | Air valve performance test equipment |
| CN116793663B (en) * | 2023-08-25 | 2024-01-12 | 江苏华东正大空调设备有限公司 | Air valve performance test equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080206 Termination date: 20100105 |