CN2525499Y - Pressure measurer - Google Patents
Pressure measurer Download PDFInfo
- Publication number
- CN2525499Y CN2525499Y CN 01247057 CN01247057U CN2525499Y CN 2525499 Y CN2525499 Y CN 2525499Y CN 01247057 CN01247057 CN 01247057 CN 01247057 U CN01247057 U CN 01247057U CN 2525499 Y CN2525499 Y CN 2525499Y
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- Prior art keywords
- pressure
- total head
- static pressure
- interface
- valve
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Abstract
The utility model discloses a pressure measurer with the aim to overcome the shortcomings of the prior art of great weight, large volume, low accuracy, low automatization, high failure and single function. The technical proposal is that the pressure measurer consists of an air compressing module, a pressure measuring and displaying module, a control module and a power supply module; the air compressing module comprises a pump and a motor; the control module comprises a full pressure interface and a static pressure interface which are communicated with a pressure storing bottle in the air compressing module through a pipeline, and a full pressure adjusting valve and a static pressure protective valve on the pipeline. The utility model is characterized in that the pump used in the air compressing module is a non-oil vacuum pressure pump; the pressure measuring and displaying module comprises a pressure sensor and a SCM, a display and a functional control keyboard which are connected with the pressure sensor. The utility model can detect the air tightness of a full static pressure system of airplane and a bellows-type meter and can be applicable to the measurement of pressure of various pipelines and the calibration of pressure meter.
Description
The utility model relates to pressure-detecting device, is specifically related to a kind of pressure tester.
Build-up pressure or vacuum tightness and detect the employed testing apparatus of its impermeability and have two types in by check system at present.One class adopts manual pump, and this testing apparatus in use exists following shortcoming: 1, manual operation, and automaticity is low; 2, the mechanical type airspeed indicator shows pressure, needs artificial interpretation, and display parameter are single and precision is low.Another kind of employing alternating current generator drives filling pump, and in use the problem of Cun Zaiing is: 1, testing apparatus weight is big, and volume is big, is not easy to carry; 2, use the stem-winder interpretation, automaticity is low; 3, oil leakage fault rate height easily pollutes source of the gas, pipeline and equipment under test.
The purpose of this utility model is to provide a kind of automaticity height for overcoming above-mentioned shortcoming, and is in light weight, volume is little, and failure rate is low, do not pollute the many pressure testers of source of the gas and equipment under test and output parameter.
For achieving the above object, technical solution of the present utility model is as follows, a kind of pressure tester, by the air compression assembly, the pressure survey display module, Control Component and Power Supply Assembly constitute, described air compression assembly comprises pump and motor 5, described Control Component comprise with the air compression assembly in the pressure accumulation bottle 3 total head interface 17 by pipeline connection, static pressure interface 8, and the total head variable valve 15 on the pipeline, static pressure variable valve 11, its special character is: employed pump is the oil-free vacuum forcing pump in the described air compression assembly, described pressure survey display module 6 comprises pressure transducer, the single-chip microcomputer that is attached thereto, display 7 that is connected with single-chip microcomputer and function supervisory keyboard.
Pressure transducer in the above-mentioned pressure survey display module 6 is the high precision vibrating Cylinder-Pressure Sensor.
Also comprise total head protective valve 14 and static pressure protective valve 9 in the above-mentioned Control Component; described total head protective valve 14 and static pressure protective valve 9 are arranged at respectively between pressure accumulation bottle 3 and total head interface 17 and the static pressure interface 8; the total head protective valve can play the pressure release effect when hypertonia; the static pressure protective valve can be controlled the speed of setting up of vacuum tightness, the protection test instrumentation.
Above-mentioned total head protective valve 14 can be arranged between pressure accumulation bottle 3 and the total head variable valve 15, and static pressure protective valve 9 can be arranged between static pressure variable valve 11 and the static pressure interface 8, the be more convenient for whole installation and the accurate measurement of pressure.
The function supervisory keyboard can be eight buttons in the above-mentioned pressure survey display module 6, and display can adopt two row's fluorescent character-display tubes.
The accompanying drawing drawing is described as follows:
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the Control Component principle schematic;
Fig. 3 is the panel synoptic diagram.
Description of reference numerals is as follows:
1-panel, 2-casing, 3-pressure accumulation bottle; 4-oil-free vacuum forcing pump, 5-motor, 6-pressure survey display module; 7-display, 8-static pressure interface, 9-static pressure protective valve; 10-static pressure atmospheric valve, 11-static pressure variable valve, 12-static pressure connects mouth; 13-total head connects mouth, 14-total head protective valve, 15-total head variable valve; 16-total head atmospheric valve, 17-total head interface.
The utility model is described in further detail below in conjunction with accompanying drawing:
Referring to Fig. 1～4, the utility model comprises panel 1, casing 2, be provided with air compression assembly, pressure survey display module 6, Control Component and Power Supply Assembly in the said casing 2, said air compression assembly comprises two pressure accumulation bottles 3 and two oil-free vacuum forcing pumps 4, and oil-free vacuum forcing pump 4 provides power by a 27V motor 5; Said pressure survey display module 6 comprises high precision vibrating Cylinder-Pressure Sensor and the PCF80C552 single-chip microcomputer that is attached thereto; display 7 that is connected with single-chip microcomputer and function supervisory keyboard; said Control Component comprises common total head interface 17; static pressure interface 8; total head variable valve 15; static pressure variable valve 11; total head atmospheric valve 16; static pressure atmospheric valve 10; also comprise the total head protective valve 14 and the static pressure protective valve 9 that are arranged between pressure accumulation bottle 3 and total head interface 17 and the static pressure interface 8; total head protective valve 14 is arranged between pressure accumulation bottle 3 and the total head variable valve 15 in this example; static pressure protective valve 9 is arranged between static pressure variable valve 11 and the static pressure interface 8, and the static pressure that is connected with pressure accumulation bottle 3 connects mouth 12 and total head and connects mouth 13 and all be communicated with high precision vibrating Cylinder-Pressure Sensor in the pressure survey display module 6.Panel 1 is provided with and top said valve and the corresponding gauge tap of interface, the display 7 that single-chip microcomputer is controlled, function supervisory keyboard are arranged on the panel 1, eight buttons are arranged on the operation keyboard in this example, also be provided with power switch on the panel 1, various gauge tap such as switch pump.
During use; the process of build-up pressure is: with the total head interface 17 that provides on the panel 1 be connected by the interface of check system or pipeline; open the power switch in the Power Supply Assembly; the oil-free vacuum forcing pump 4 that gets in the electric back 27V direct current generator drive air compression assembly is started working; open at total head variable valve 15; promptly under the situation that is examined system's build-up pressure; the air inlet gate open atmosphere of oil-free vacuum forcing pump 4, the total head interface 17 of exhaust valve on pressure accumulation bottle 3, total head protective valve 14, total head variable valve 15 and panel 1 is communicated with tested system interface.During the forcing pump descent of piston, inlet valve is opened the suction air.During upstroke, IC Intake Valve Closes, when air was compressed to certain pressure, exhaust valve was opened, and pressurized air is introduced into the pressure accumulation bottle and enters into the total head system again, and so forth, can set up pressure field in the total head system.High precision vibrating Cylinder-Pressure Sensor in the pressure survey display module 6 is transferred to the PCF80C552 single-chip microcomputer with signal, and this single-chip microcomputer is the core processing device, and output is finished in it and function supervisory keyboard, display 7 and pressure transducer associated working.
When setting up vacuum tightness then with the static pressure interface 8 and the realization that is connected by the interface of check system or pipeline.
Compared with prior art, the utility model advantage is as follows:
1, automaticity height, Measuring Time is short, and the efficient height not only has the demonstration of measurement, self check, fault location Deng several functions, can also measure demonstration height, pressure, pressure reduction and air speed, true air speed, M number, rising or falling speed etc. Many kinds of parameters;
2, precision height adopts the high accuracy vibrating Cylinder-Pressure Sensor, in the time of will originally surveying the air speed indicated pressure thousand/ Five precision brings up to 5/10000ths;
3, setting up vacuum ranges is 0～22 kilometer, and pressure limit is 0～3 kilogram, can guarantee at 2～2.5 cubes Set up pressure or the vacuum of long period in the air system of decimetre;
4, failure rate is low is convenient to safeguard. Adopt oilless vacuum pump as one of air compression element, from all On solved oil leakage fault rate height and source of the gas and airplane equipment pollution problem,
5, new design adds in Control Component total head protective valve and static pressure protective valve can be respectively when hypertonia Play the effect that pressure release effect and control vacuum are set up speed, to protect tested instrument;
6, volume is little, has only 354 * 252 * 223mm, and is in light weight, and weight is a kind of portable polymeter less than 8 kilograms;
7, of many uses, adaptability is strong, not only can check the function of the impermeability of aircraft pitot-static pressure system and bellows instruments etc., also can carry out various pipeline pressures and measure and manometer calibration.
Claims (4)
1, a kind of pressure tester, by the air compression assembly, pressure survey display module (6), Control Component and Power Supply Assembly constitute, described air compression assembly comprises pump and motor (5), described Control Component comprise with the air compression assembly in the total head interface (17) of pressure accumulation bottle (3) by pipeline connection, static pressure interface (8), and the total head variable valve (15) on the pipeline, static pressure variable valve (11), it is characterized in that: employed pump is oil-free vacuum forcing pump (4) in the described air compression assembly, described pressure survey display module (6) comprises pressure transducer, the single-chip microcomputer that is attached thereto, display that is connected with single-chip microcomputer (7) and function supervisory keyboard.
2, pressure tester as claimed in claim 1 is characterized in that: the pressure transducer in the described pressure survey display module (6) is the high precision vibrating Cylinder-Pressure Sensor.
3, pressure tester as claimed in claim 1 or 2; it is characterized in that: also comprise total head protective valve (14) and static pressure protective valve (9) in the described Control Component, described total head protective valve (14) and static pressure protective valve (9) are arranged at respectively between pressure accumulation bottle (3) and total head interface (17) and the static pressure interface (8).
4, pressure tester as claimed in claim 3 is characterized in that: described total head protective valve (14) is arranged between pressure accumulation bottle (3) and the total head variable valve (15), and static pressure protective valve (9) is arranged between static pressure variable valve (11) and the static pressure interface (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247057 CN2525499Y (en) | 2001-09-18 | 2001-09-18 | Pressure measurer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 01247057 CN2525499Y (en) | 2001-09-18 | 2001-09-18 | Pressure measurer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2525499Y true CN2525499Y (en) | 2002-12-11 |
Family
ID=33657965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 01247057 Expired - Fee Related CN2525499Y (en) | 2001-09-18 | 2001-09-18 | Pressure measurer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2525499Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103119412A (en) * | 2010-09-17 | 2013-05-22 | 空中客车运营简化股份公司 | Device for carrying out tests on at least one fluid circuit of an aircraft |
| CN103344499A (en) * | 2013-07-02 | 2013-10-09 | 上海飞机制造有限公司 | Test equipment for pressure and airtightness of fuselage of passenger plane |
| CN104122050A (en) * | 2013-04-24 | 2014-10-29 | 哈尔滨飞机工业集团有限责任公司 | Dynamic pressure and static pressure testing device of helicopter distributed atmospheric engine |
| CN106184813A (en) * | 2016-08-18 | 2016-12-07 | 武汉市天毅达测控科技有限公司 | Atmospheric parametric synthesis tester |
| CN106197857A (en) * | 2015-05-07 | 2016-12-07 | 哈尔滨飞机工业集团有限责任公司 | A kind of helicopter pitot-static pressure gas-tight test |
| CN106969879A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of dynamic and static pressure exerciser |
-
2001
- 2001-09-18 CN CN 01247057 patent/CN2525499Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103119412A (en) * | 2010-09-17 | 2013-05-22 | 空中客车运营简化股份公司 | Device for carrying out tests on at least one fluid circuit of an aircraft |
| CN103119412B (en) * | 2010-09-17 | 2016-08-10 | 空中客车运营简化股份公司 | For carrying out the device tested at least one fluid circuit of airborne vehicle |
| CN104122050A (en) * | 2013-04-24 | 2014-10-29 | 哈尔滨飞机工业集团有限责任公司 | Dynamic pressure and static pressure testing device of helicopter distributed atmospheric engine |
| CN103344499A (en) * | 2013-07-02 | 2013-10-09 | 上海飞机制造有限公司 | Test equipment for pressure and airtightness of fuselage of passenger plane |
| CN106197857A (en) * | 2015-05-07 | 2016-12-07 | 哈尔滨飞机工业集团有限责任公司 | A kind of helicopter pitot-static pressure gas-tight test |
| CN106969879A (en) * | 2016-01-13 | 2017-07-21 | 哈尔滨飞机工业集团有限责任公司 | A kind of dynamic and static pressure exerciser |
| CN106184813A (en) * | 2016-08-18 | 2016-12-07 | 武汉市天毅达测控科技有限公司 | Atmospheric parametric synthesis tester |
| CN106184813B (en) * | 2016-08-18 | 2018-07-20 | 武汉市天毅达测控科技有限公司 | Atmospheric parametric synthesis tester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |