JPH0390034U - - Google Patents
Info
- Publication number
- JPH0390034U JPH0390034U JP15255189U JP15255189U JPH0390034U JP H0390034 U JPH0390034 U JP H0390034U JP 15255189 U JP15255189 U JP 15255189U JP 15255189 U JP15255189 U JP 15255189U JP H0390034 U JPH0390034 U JP H0390034U
- Authority
- JP
- Japan
- Prior art keywords
- chamber
- accumulator
- tested
- air
- nozzle
- 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.)
- Granted
Links
- 238000010586 diagram Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Description
第１図は、本考案の高温空気流量試験装置のブ
ロツク図を示す。
１……本体、２……アキユムレータ、３……計
測室、７……ワーク、１０……ノズルチヤンバ、
１１……音速ノズル、１５……真空ポンプ、１７
……第１加熱器、１８……第２加熱器、１９……
第１熱交換器、２０……第２熱交換器。
FIG. 1 shows a block diagram of the high temperature air flow rate testing device of the present invention. 1... Main body, 2... Accumulator, 3... Measurement chamber, 7... Work, 10... Nozzle chamber,
11... Sonic nozzle, 15... Vacuum pump, 17
...First heater, 18...Second heater, 19...
1st heat exchanger, 20...2nd heat exchanger.
Claims (1)
介装する試験筺体と、規定流量が定められた音速
ノスルを選択可能に装着したノズルチヤンバと、
真空ポンプとを順次連通し、被検流量計と音速ノ
ズルとの流量を比較する空気流量試験装置におい
て、前記試験筺体をアキユムレータと計量器室と
に２分し、被検流量計を計量器室内にアキユムレ
ータと連通し計量器室とは気密に介装し、且つ導
通路に配設してアキユムレータおよび計量器室の
導入する空気を各々加熱する第１および第２の加
熱器と被検流量計とノズルチヤンバ間の導通路に
おける熱を吸熱し前記加熱器に導入する空気を予
熱する熱交換器を配設したことを特徴とする高温
空気流量試験装置。 ２ アキユムレータおよび計量器室に各々開口し
て室内圧力を所定圧力に調整する圧力制御弁と、
これら圧力制御弁から流出する高温空気の排熱を
吸熱し導入空気を予熱する第２の熱交換器を導通
路に配設したことを特徴とする請求項１記載の高
温空気流量試験装置。[Scope of Claim for Utility Model Registration] 1. A conductive path for introducing external air, a test housing in which a flowmeter to be tested is inserted, and a nozzle chamber in which a sonic nozzle with a specified flow rate is selectively installed;
In an air flow test device that sequentially communicates with a vacuum pump and compares the flow rates of a flowmeter to be tested and a sonic nozzle, the test housing is divided into an accumulator and a metering chamber, and the flowmeter to be tested is placed in the metering chamber. First and second heaters and a flow meter to be tested are connected to the accumulator and are airtightly interposed in the metering chamber, and are disposed in the conduction path to heat the air introduced into the accumulator and the metering chamber, respectively. A high-temperature air flow rate test device, comprising a heat exchanger that absorbs heat in the conduction path between the nozzle chamber and the nozzle chamber and preheats the air introduced into the heater. 2. A pressure control valve that opens into the accumulator and the meter chamber and adjusts the indoor pressure to a predetermined pressure;
2. The high-temperature air flow rate test device according to claim 1, further comprising a second heat exchanger disposed in the conduit passage for absorbing exhaust heat of the high-temperature air flowing out from the pressure control valves and preheating the introduced air.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15255189U JP2502072Y2 (en) | 1989-12-28 | 1989-12-28 | High temperature air flow tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15255189U JP2502072Y2 (en) | 1989-12-28 | 1989-12-28 | High temperature air flow tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0390034U true JPH0390034U (en) | 1991-09-13 |
| JP2502072Y2 JP2502072Y2 (en) | 1996-06-19 |
Family
ID=31698806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15255189U Expired - Lifetime JP2502072Y2 (en) | 1989-12-28 | 1989-12-28 | High temperature air flow tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2502072Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816035A (en) * | 2021-01-15 | 2021-05-18 | 丹东贝特自动化工程仪表有限公司 | Positive pressure high-temperature gas standard device with sonic nozzle as standard device |
| CN119413258A (en) * | 2024-11-13 | 2025-02-11 | 重庆前卫表业有限公司 | A temperature regulation system for high and low temperature calibration system of real gas flow |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5299447A (en) | 1992-07-13 | 1994-04-05 | Ford Motor Company | Air flow manifold system for providing two different mass air flow rates to a mass air flow sensor production calibration station |
| JP3366075B2 (en) | 1993-10-12 | 2003-01-14 | 独立行政法人産業技術総合研究所 | Gas meter test equipment |
-
1989
- 1989-12-28 JP JP15255189U patent/JP2502072Y2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112816035A (en) * | 2021-01-15 | 2021-05-18 | 丹东贝特自动化工程仪表有限公司 | Positive pressure high-temperature gas standard device with sonic nozzle as standard device |
| CN119413258A (en) * | 2024-11-13 | 2025-02-11 | 重庆前卫表业有限公司 | A temperature regulation system for high and low temperature calibration system of real gas flow |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2502072Y2 (en) | 1996-06-19 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| EXPY | Cancellation because of completion of term |