CN207096208U - Bench type inerting measurement of oxygen content device - Google Patents
Bench type inerting measurement of oxygen content device Download PDFInfo
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- CN207096208U CN207096208U CN201720816371.6U CN201720816371U CN207096208U CN 207096208 U CN207096208 U CN 207096208U CN 201720816371 U CN201720816371 U CN 201720816371U CN 207096208 U CN207096208 U CN 207096208U
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- power supply
- sensor
- oxygen content
- measurement
- vavuum pump
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Abstract
The utility model discloses a kind of bench type inerting measurement of oxygen content device,Including some sensors being arranged in order being arranged at gas access,Each sensor is connected to pressure chamber,Gas vent is connected to after pressure chamber connection vavuum pump,Some sensors are connected with inserted computer,Inserted computer includes AD conversion module and the analog output modules of C 7024,The analog signal that AD conversion module can come sensor transmissions is converted into data signal output,The analog signal that the analog output modules of C 7024 can come sensor transmissions is converted into electric current output,Some sensors,Inserted computer and vavuum pump have power supply power supply,Power supply is connected with external AC 220V power supplys,Power supply exports 5V,24V and 28V voltage gives sensor respectively,Inserted computer and vavuum pump power supply,The utility model solves the problems, such as that the oxygen content measurement present in prior art in aircraft fuel tank is insufficient.
Description
Technical field
The utility model belongs to Aviation Fuel explosion-proof technology field, and in particular to a kind of bench type inerting measurement of oxygen content dress
Put.
Background technology
It is well-known：Aircraft is the safest vehicles.But the fuselage of aircraft and wing major part space mounting
Fuel tank equipped with Aviation Fuel, the major accidents such as blast on fire easily occur under some unexpected situations for fuel oil atmosphere, in order to keep away
Exempt from this dangerous generation, the oxygen concentration in fuel tank is controlled within safe range, into the most effectively doing
Method.This is required in the ground experiment of aircraft, test phase it is necessary to carrying out simulation survey to the oxygen content in aircraft fuel tank
Examination, and the corresponding measurement apparatus in traditional experiment room is bulky both at home and abroad at present, cost is high, and there is many measuring principles
On deficiency, bring many inconvenience to measurement.
Utility model content
The purpose of this utility model is to provide a kind of bench type inerting measurement of oxygen content device, solves and deposits in the prior art
Aircraft fuel tank in oxygen content measure Shortcomings the problem of.
The utility model is the technical scheme adopted is that a kind of bench type inerting measurement of oxygen content device, including is arranged on
Some sensors being arranged in order at gas access, each sensor is connected to pressure chamber, after pressure chamber connects vavuum pump
Gas vent is connected to, some sensors are connected with inserted computer, and some sensors, inserted computer and vavuum pump have electricity
Source powers.
The characteristics of the utility model, also resides in,
Power supply is connected with external AC 220V power supplys.
Power supply output 5V, 24V and 28V voltage are respectively to sensor, inserted computer and vavuum pump power supply.
Inserted computer includes AD conversion module and C-7024 analog output modules, and AD conversion module can be by sensor
The analog signal transmitted is converted into data signal output, and C-7024 analog output modules can come sensor transmissions
Analog signal is converted into electric current output.
The beneficial effects of the utility model are that a kind of bench type inerting measurement of oxygen content device, tested gas can pass through biography
Sensor enters pressure chamber, and the oxygen content in tested gas is converted into analog signal by sensor, by cable transmission to embedded
Computer, the analog signal that inserted computer can come sensor transmissions is converted into data signal output, while sensor is passed
The defeated analog signal to come is converted into electric current output, can make staff between test, it becomes possible to understands the fuel tank at scene
The oxygen content situation of interior mixed gas.
Brief description of the drawings
Fig. 1 is a kind of structural representation of bench type inerting measurement of oxygen content device of the utility model.
In figure, 1. gas accesses, 2. sensors, 3. pressure chambers, 4. inserted computers, 5. vavuum pumps, 6. power supplys.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description.
A kind of bench type inerting measurement of oxygen content device of the utility model, structure including being arranged on gas as shown in figure 1, enter
Some sensors 2 being arranged in order at mouth 1, each sensor 2 is connected to pressure chamber 3, after pressure chamber 3 connects vavuum pump 5
Gas vent 7 is connected to, some sensors 2 are connected with inserted computer 4, and inserted computer 4 includes AD conversion module and C-
The analog signal that sensor 2 transmits can be converted into data signal output by 7024 analog output modules, AD conversion module,
The analog signal that sensor 2 transmits can be converted into electric current and export by C-7024 analog output modules, some sensors 2,
Inserted computer 4 and vavuum pump 5 have power supply 6 to power, and power supply 6 is connected with external AC 220V power supplys, power supply 6 export 5V, 24V and
28V voltage is powered to sensor 2, inserted computer 4 and vavuum pump 5 respectively.
A kind of bench type inerting measurement of oxygen content device of the utility model, operation principle are as follows：
After startup power supply 6, vavuum pump 5 is started working (to be ensured to be tested by pressure sensor and intelligent temperature control module
The flow velocity and constant temperature of gas), when working the gas in pressure chamber 3 can discharge vavuum pump 5 from gas vent, while pressure chamber 3
In pressure reduce, because pressure chamber 3 is connected with sensor 2, therefore is tested gas and can pass through gas access 1 and sensor 2
Into pressure chamber 3, the oxygen content in tested gas is converted into analog signal by sensor 2, by cable transmission to embedded-type electric
Brain 4, inserted computer 4 include AD conversion module and C-7024 analog output modules, and AD conversion module can pass sensor 2
The defeated analog signal to come is converted into data signal output, and C-7024 analog output modules can transmit sensor 2
Analog signal is converted into electric current output.
The use of ECV valves purges selection or external perimysium reference gas calibration in air, opens the calibration that ECV valves are passed through various concentrations
Gas is calibrated by system and full scale or zero point correction, can all passage simultaneous selections.Exhaust pressure of the DPV valves to vavuum pump
Power is adjusted rear gas and is discharged into inside fuel tank.
A kind of bench type inerting measurement of oxygen content device of the utility model, the sample gas of multiple positions in aircraft fuel tank
Sampled by gas sampling copper pipe or silica gel to experimental stand cabinet, each road standalone sensor is by sample gas oxygen inside stand
Concentration is converted into digital output, by sensor and pressure chamber, vacuum pump group into system, realize to more in fuel tank
Individual point can measure simultaneously, can make staff between test, it becomes possible to understand the oxygen of mixed gas in the fuel tank at scene
Content situation.
Claims (4)
- A kind of 1. bench type inerting measurement of oxygen content device, it is characterised in that including be arranged on gas access (1) place it is some according to The sensor (2) of secondary arrangement, each sensor (2) are connected to pressure chamber (3), and pressure chamber (3) connection vavuum pump (5) connects afterwards To gas vent (7), some sensors (2) are connected with inserted computer (4), some sensors (2), inserted computer (4) and Vavuum pump (5) has power supply (6) power supply.
- A kind of 2. bench type inerting measurement of oxygen content device according to claim 1, it is characterised in that the power supply (6) It is connected with external AC 220V power supplys.
- A kind of 3. bench type inerting measurement of oxygen content device according to claim 2, it is characterised in that the power supply (6) 5V, 24V and 28V voltage are exported respectively to sensor (2), inserted computer (4) and vavuum pump (5) power supply.
- A kind of 4. bench type inerting measurement of oxygen content device according to claim 1, it is characterised in that the embedded-type electric Brain (4) includes AD conversion module and C-7024 analog output modules, and AD conversion module can transmit sensor (2) Analog signal is converted into data signal output, and C-7024 analog output modules can believe the simulation that sensor (2) transmit Number it is converted into electric current output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816371.6U CN207096208U (en) | 2017-07-07 | 2017-07-07 | Bench type inerting measurement of oxygen content device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720816371.6U CN207096208U (en) | 2017-07-07 | 2017-07-07 | Bench type inerting measurement of oxygen content device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207096208U true CN207096208U (en) | 2018-03-13 |
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ID=61554607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720816371.6U Active CN207096208U (en) | 2017-07-07 | 2017-07-07 | Bench type inerting measurement of oxygen content device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207096208U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967454A (en) * | 2019-12-23 | 2020-04-07 | 中国航空工业集团公司沈阳飞机设计研究所 | Distributed oxygen concentration real-time measurement system and method |
-
2017
- 2017-07-07 CN CN201720816371.6U patent/CN207096208U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967454A (en) * | 2019-12-23 | 2020-04-07 | 中国航空工业集团公司沈阳飞机设计研究所 | Distributed oxygen concentration real-time measurement system and method |
| CN110967454B (en) * | 2019-12-23 | 2022-06-07 | 中国航空工业集团公司沈阳飞机设计研究所 | Distributed oxygen concentration real-time measurement system and method |
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