CN201277879Y - Consumption experiment apparatus for checking flow sensor - Google Patents
Consumption experiment apparatus for checking flow sensor Download PDFInfo
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- CN201277879Y CN201277879Y CNU2008201411468U CN200820141146U CN201277879Y CN 201277879 Y CN201277879 Y CN 201277879Y CN U2008201411468 U CNU2008201411468 U CN U2008201411468U CN 200820141146 U CN200820141146 U CN 200820141146U CN 201277879 Y CN201277879 Y CN 201277879Y
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Abstract
The utility model discloses a consumption tester for detecting a flow sensor, comprising an induction oil tank and an indicating control box. The induction oil tank is formed by connecting an electric oil pump (2) with a low reluctance force sensor (5), a cam clamp (6) and a flow regulating valve (9) which are serially connected to a same circulation oil circuit through a filter (3), wherein the electric oil pump (2) is communicated with an oil sump tank (1); the circuit of the input end of the flow regulating valve (9) is connected with a pressure gauge (4); and a tested sensor is connected between the low reluctance force sensor (5) and the cam clamp (6). By adopting An LCD or LED display circuit to display instantaneous flow values and consumption values, the utility model has the advantages of good repetitiveness and high precision. After being started up, consumption detection does not need manual intervention, automatically stops, is convenient to operate and visual in reading. Through installing different horizontal or L-shaped sensors in a pipeline arranged between the flow regulating valve and the cam clamp, the utility model can realize error detection and air tightness detection on the horizontal or L-shaped fuel flow sensors.
Description
Technical field
The utility model relates to the pick-up unit of a kind of fuel flow instrument instantaneous delivery and consumption error, especially for the pick-up unit of checking fuel flow transducer.
Background technology
Because fuel flow transducer is the critical component in the fuel flow instrument, in order to check the accuracy of fuel flow instrument, all will regularly detect fuel flow transducer usually.In the prior art, the pick-up unit of checking fuel flow transducer mainly is made up of induction fuel tank and indication control box two parts.The induction fuel tank generally is made up of fuel tank, vane oil pump, tachometer gage, direct current generator, friction pulley mechanical speed governors mechanism, pipeline accessory clips.The indication control box is by telemetry circuit, tested sensor relay register, vane oil pump pump revolution relay register, compositions such as stopwatch, stopwatch relay start stop apparatus.The induction fuel tank is connected with the indication control box by detection streamer, the motor switch sense of control of indication control box answers the direct current generator in the fuel tank to start, direct current generator in the induction fuel tank drives vane oil pump work by friction pulley mechanical speed governors mechanism, fuel oil is circulated in oil circuit, vane oil pump is by connecting the tachometer gage of vane oil pump, by the principle that pump revolution is directly proportional with flow, tested sensor instantaneous delivery in the rotating speed of monitoring tachometer gage and the same oil circuit.In the regular hour, tested sensor relay register, vane oil pump pump revolution relay register count to tested sensor and vane oil pump signal respectively, and by relatively, check the instantaneous delivery and the total flow error of tested instrument.
The friction pulley mechanical speed governors mechanism that above-mentioned prior art flow regulation adopts cause instability of flow owing to wear and tear easily in the friction pulley surface, and friction noise is big.Tachometer gage detection numeration of adopting and tested sensor relay register, vane oil pump pump revolution relay register, and parts such as stopwatch, stopwatch relay start stop apparatus, consumption detect start after, usually need manually stop, inconvenient operation, and reading is not directly perceived yet.
Summary of the invention
The purpose of this utility model is the weak point that exists at above-mentioned prior art, do not need manual intervention after providing a kind of consumption to detect startup, can stop automatically, and easy to operate, reading is directly perceived, can check the instantaneous delivery and the bubble-tight pick-up unit of consumption sum of errors of tested flow sensor.
The technical scheme that its technical matters that solves the utility model adopts is: a kind of consumption test unit of checking flow sensor comprises induction fuel tank and indication control box.Described induction fuel tank is by the electric oil pump that is communicated with oil sump tank, be connected to form through low reluctance force sensor, cam anchor clamps and the adjusting flow valve of connecting on filter and the same circulating oil path, and on the road of regulating the flow valve input end, being connected with tensimeter, tested sensor is connected to be regulated between flow valve and the cam anchor clamps.
The indication control box comprises prewired circuit, control circuit, display circuit, reometer, the indication control box cooperates the induction fuel tank, the signal of input standard transducer (low reluctance force sensor), tested sensor, meter constant by prewired circuit pre-set criteria sensor, tested sensor, preset the consumption value, handle through the control circuit that has single-chip microcomputer, carry out the error-detecting of fuel flow transducer, and by LCD or the digital testing result that shows of LED display circuit.
The principle of the error-detecting of fuel flow transducer is, under the electric oil pump effect, fuel oil circulates in oil circuit, the standard transducer impeller is also in rotation, its rotating speed is directly proportional with instantaneous delivery, its revolution is directly proportional with total flow, measures by rotating speed and revolution to the standard transducer impeller, can calculate the instantaneous delivery and the consumption of fuel oil.Because tested sensor is in same oil circuit, to its measure simultaneously and with standard transducer relatively, can check tested sensor errors.By LCD or the digital testing result that shows of LED display circuit.
In addition, the signal of standard transducer is handled through control circuit, can show the instantaneous delivery value by reometer, has constituted the pointer flowmeter.But directly monitoring instantaneous delivery.
Also is furnished with pitcher pump on the fuel tank, it is the impermeability that is used for checking tested gauge sensor, its principle is with tested sensor by the impermeability connecting leg, tensimeter and pitcher pump also connect, inject fuel oil to tested sensor during the pitcher pump pressurization, by the tensimeter indicated pressure, by now examining tested gauge sensor surface in the certain hour whether the method for fuel oil infiltration is arranged, check the sensor impermeability.
The utility model has following beneficial effect than prior art:
The utility model adopts novel electric oil pump, filtrator, low reluctance force sensor, quick construct for handling cam anchor clamps, regulates the closed circuit that flow valve is formed, when error-detecting that fuel flow transducer is carried out and airtight test, stability of flow, good reproducibility have been reached, the precision height, noise is little, and sensor is easy to loading and unloading.Low reluctance force sensor adopts induction type not have the turbo flow meter of the low reluctance force structure of iron core, and its signal is handled through telemetry circuit, as the normal flow signal, has good reproducibility, the characteristics that precision is high.
Show the instantaneous delivery value by reometer, constitute pointer flowmeter monitoring instantaneous delivery, have intuitive.
Owing to adopted novel prewired circuit, had control circuit, LCD or the LED display circuit of single-chip microcomputer, consumption does not need manual intervention after detecting and starting, and stops automatically, and easy to operate, reading is directly perceived.Realize automatic control and improved accuracy of detection.
By different " one " font or " L " font sensor are installed, can realize the error-detecting and the airtight test of " one " font or " L " font fuel flow transducer in the pipeline of regulating between flow valve and the cam anchor clamps.
Description of drawings
Further specify the utility model below in conjunction with drawings and Examples, but therefore the utility model is not limited among the described scope of embodiments.
Fig. 1 is the structure principle chart of the utility model induction fuel tank.
Fig. 2 is the utility model induction fuel tank skeleton view.
Fig. 3 is the utility model indication control box schematic block circuit diagram.
In the accompanying drawing, 1 fuel tank, 2 electric oil pumps, 3 filtrators, 4 tensimeters, 5 low reluctance force sensors, 6 cam anchor clamps, 7 pitcher pumps, 8 tested sensors, 9 regulate flow valve, 10 fuel outlets, 11 handwheels, 12 vent valves, 13 joint I, 14 elbow connecting pipes, 15 pouring orifices, 16 joint II, 17 transparent tube, 18 plugs, 19 joint III, 20 sockets.
Embodiment
Consult Fig. 1, in the induction fuel tank, the oil sump tank 1 that has fuel outlet 10 is communicated with electric oil pump 2, and is connected to form the circular test loop through low reluctance force sensor 5, cam anchor clamps 6, tested sensor 8 and the adjusting flow valve 9 of connecting on filter 3 and the same circulating oil path.Low reluctance force sensor 5 wherein can be the turbo flow meter that induction type does not have the low reluctance force structure of iron core.The adjusting flow valve 9 that connects on the circular test loop is communicated with oil sump tank 1 by the tensimeter 4 that connects on the input end.On the oil circuit of oil sump tank 1, also be furnished with and regulate the pitcher pump 7 that flow valve 9 links to each other with tensimeter 4.Tensimeter 4 and pitcher pump 7 also connect.Can check the impermeability of tested gauge sensor by pitcher pump 7.Its principle be by the impermeability connecting leg with tested sensor 8, inject fuel oil to tested sensor during pitcher pump 7 pressurization, by tensimeter 4 indicated pressures, change and check the sensor impermeability by now examining pressure in the certain hour.
The principle of the error-detecting of fuel flow transducer is that under electric oil pump 2 effects, fuel oil circulates in oil circuit through filtrator 3.Filtrator 3 works to filter foreign material, regime flow.The impeller of low reluctance force sensor 5 is in rotation, and its rotating speed is directly proportional with instantaneous delivery, and its revolution is directly proportional with consumption.Because tested sensor is connected in the same oil circuit, the revolution and the consumption of its impeller rotation are proportional.In the unit interval, by the rotating speed and the revolution speed measuring of impeller and calculate the instantaneous delivery and the consumption of fuel oil.In this process, tested sensor 8 is measured simultaneously with low reluctance force sensor 5 and is compared with low reluctance force sensor 5, checks tested sensor errors.
Consult Fig. 2, the induction fuel tank inserts socket 20 by detection streamer and is connected with the indication control box, the motor switch sense of control of indication control box answers the electric oil pump 2 in the fuel tank to start, add fuel oil by pouring orifice 15, electric oil pump 2, filtrator 3, low reluctance force sensor 5 are installed in oil sump tank 1 below, electric oil pump 2 levels are installed in oil sump tank 1 side, link to each other with filtrator 3 inlets by connecting pipe.Filtrator 3 outlets link to each other with low reluctance force sensor 5 inlets by pipeline.Low reluctance force sensor 5 vertical installation outlets upwards and are installed in oil sump tank 1 top, and the pipeline that has transparent tube 17 and cam anchor clamps 6 links to each other.
The error-detecting of the tested fuel flow transducer of " one " font is installed: sensor installation joint II16 is gone up in 6 outlets of cam anchor clamps, regulates flow valve 9 sensor installation joint I13, makes joint I13 and the elbow 14 formation drainback passage of combining closely.The tested sensor 8 of " one " font is installed between elbow 14 and the joint II16, depresses the anchor clamps handle and clamps the tested sensor 8 of " one " font.The following outlet of regulating flow valve 9 is connected with oil sump tank 1.So installation can be carried out the error-detecting to the tested fuel flow transducer of " one " font.
The impermeability of the tested sensor 8 of " one " font detects installs: the sensor connector II16 that installs is gone up in 6 outlets of cam anchor clamps take off, change plug 18, " one " font sensor is installed between elbow 14 and the plug 18, rotation hand wheel 11 clamps closes oil circuit, depresses the anchor clamps handle and clamps " one " font sensor.
Sensor airtight test operation: close flow control valve 9, open vent valve 12 in the time of with pitcher pump 7 pressurizations, treat to close vent valve 12 after air has been arranged, continue to be forced into certain value, keep a period of time, with tested sensor 8 outside surfaces do not have leakage of oil, no penetrating oil is qualified; After inspection finishes, open vent valve 12 earlier, treat to open flow control valve 9 again after pressure descends, take off tested sensor 8.
The error-detecting of the tested fuel flow transducer of " L " font is installed: take off the elbow connecting pipe 14 among Fig. 2, erection joint III19 is gone up in 6 outlets of cam anchor clamps, regulate flow valve 9 erection joint I13, the tested sensor of " L " font is installed between joint III19 and the joint 13I, makes the outlet of joint 13I and the tested sensor of " L " the font formation drainback passage of combining closely.Depressing the anchor clamps handle makes joint III19 clamp the tested fuel flow transducer inlet of " L " font.So installation can be carried out the error-detecting to the tested fuel flow transducer of " L " font.
The impermeability of the tested sensor 8 of " L " font detects installs: 6 outlets of cam anchor clamps are gone up the sensor connector III19 that installs and are taken off, change plug 18, the tested sensor of " L " font is installed between plug 18 and the joint I13, the joint I13 and the outlet of the tested sensor of " L " font are combined closely, rotation hand wheel 11 clamps closes oil circuit, depresses the anchor clamps handle and clamps " L " font sensor.
The operation of " L " font sensor airtight test is the same.
Consult Fig. 3.The indication control box that cooperates the induction fuel tank, the prewired circuit that is connected on comprising control box panel operation display module and placing the control box interior circuit board, telemetry circuit, demonstration I circuit, demonstration II circuit, reometer or the like are formed.
The indication control box is by the signal of detection streamer input as the low reluctance force sensor of standard transducer, the signal of tested sensor I (dry-reed type) or tested sensor II (induction type), the signal of instantaneous delivery sensor.
During the fuel flow transducer error-detecting,, preset the consumption value, can select instantaneous delivery to detect or the consumption detection, handle, by the digital testing result that shows of LED through control circuit by prewired circuit pre-set criteria sensor, tested sensor meter constant.
But show the I circuit, show II circuit display standard sensor, tested sensor meter constant, instantaneous delivery value, consumption value, consumption do not need manual intervention after detecting and starting, and stop detection automatically when presetting the consumption value, show tested sensor result.
Telemetry circuit selects commutation circuit to form by signaling conversion circuit, signal processing circuit, F/I change-over circuit, signal, signaling conversion circuit can be converted to I/O port of single-chip microcomputer in the 5V pulse voltage signal entering signal treatment circuit to tested flow sensor 1 signal (dry-reed type make-and-break signal), and signal lag a period of time counts after handling; It is the 5V pulse voltage signal that signaling conversion circuit can carry out processing and amplifying to tested flow sensor 2 signals (inductive ac signal), 1 mouthful of the single-chip microcomputer register in the signal entering signal treatment circuit after the processing; Signal as the low reluctance force sensor of standard transducer is the 5V pulse voltage signal, its signal divides two the tunnel after entering telemetry circuit, one the tunnel enters 2 mouthfuls of single-chip microcomputer registers in the signal processing circuit as the normal flow signal after isolating, another road enters the F/I change-over circuit, be converted to current signal and show, as another kind demonstration---the pointer display format of instantaneous delivery by reometer.
Tested instantaneous delivery instrument comprises indicator, instantaneous delivery sensor, transformer, and signal selects commutation circuit that tested instantaneous delivery instrument is switched to transformer inspection, instantaneous delivery inspection, indicator total flow inspection state during detection.Select commutation circuit can connect DC 27V power supply or interchange 115V power supply.
Claims (9)
1. inspection consumption test unit of checking flow sensor, comprise, induction fuel tank and indication control box, it is characterized in that, described induction fuel tank is by the electric oil pump (2) that is communicated with oil sump tank (1), be connected to form through low reluctance force sensor (5), cam anchor clamps (6) and the adjusting flow valve (9) of connecting on filter (3) and the same circulating oil path, and on the road of regulating flow valve (9) input end, being connected with tensimeter (4), tested sensor (8) is connected to be regulated between flow valve (9) and the cam anchor clamps (6).
2. the consumption test unit of inspection flow sensor according to claim 1, it is characterized in that, described indication control box, comprise the control box panel assembly and place control box interior circuit board assembly and the testing circuit of electrical interconnection composition that testing circuit is made up of prewired circuit, telemetry circuit, LED demonstration I circuit, LED demonstration II circuit, reometer.
3. the consumption test unit of inspection flow sensor according to claim 2 is characterized in that, telemetry circuit selects commutation circuit to form by signaling conversion circuit, signal processing circuit, F/I change-over circuit, signal.
4. the consumption test unit of inspection flow sensor according to claim 3, it is characterized in that, signaling conversion circuit will be converted to the 5V pulse voltage signal from the make-and-break signal of tested dry-reed type flow sensor, deliver to the I/O port of single-chip microcomputer in the signal processing circuit, delay process counts; To amplify from the AC signal of tested induction type flow sensor, treatment conversion is the 5V pulse voltage signal, and register of single-chip microcomputer of delivering in the signal processing circuit counts for 1 mouthful.
5. the consumption test unit of inspection flow sensor according to claim 3, it is characterized in that, signal processing circuit can read standard transducer, tested sensor meter constant prevalue from prewired circuit, consumed flow value or umber of pulse prevalue, after error-detecting starts, treatment circuit runs to and can stop numeration automatically after number is preset in appointment, and the data of instantaneous delivery value, consumption value show that by LED I circuit, LED show that the II circuit carries out number demonstration testing result.
6. the consumption test unit of inspection flow sensor according to claim 2, it is characterized in that, 5V pulse voltage signal from low reluctance force sensor divides two the tunnel, single-chip microcomputer register mouth 2 in the one tunnel direct entering signal treatment circuit counts as the normal flow signal, another road enters the F/I change-over circuit, be converted to current signal and show, as the pointer display format of instantaneous delivery by reometer.
7. the consumption test unit of inspection flow sensor according to claim 1 is characterized in that, described low reluctance force sensor is the turbo flow meter that induction type does not have the low reluctance force structure of iron core.
8. the consumption test unit of inspection flow sensor according to claim 1 is characterized in that, also is connected with on the oil circuit of oil sump tank (1) and is used for checking the bubble-tight pitcher pump of tested gauge sensor (8) (7).
9. the consumption test unit of inspection flow sensor according to claim 1, it is characterized in that, tested sensor (8) is by impermeability elbow connecting pipe (14), through regulating the delivery valve (12) on the flow valve (9) and connecting tensimeter (4) and pitcher pump (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201411468U CN201277879Y (en) | 2008-11-04 | 2008-11-04 | Consumption experiment apparatus for checking flow sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201411468U CN201277879Y (en) | 2008-11-04 | 2008-11-04 | Consumption experiment apparatus for checking flow sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201277879Y true CN201277879Y (en) | 2009-07-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201411468U Expired - Lifetime CN201277879Y (en) | 2008-11-04 | 2008-11-04 | Consumption experiment apparatus for checking flow sensor |
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| Country | Link |
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| CN (1) | CN201277879Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067255A (en) * | 2015-09-16 | 2015-11-18 | 北京亚新科天纬油泵油嘴股份有限公司 | Special endurance test bench for fuel metering valve |
-
2008
- 2008-11-04 CN CNU2008201411468U patent/CN201277879Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105067255A (en) * | 2015-09-16 | 2015-11-18 | 北京亚新科天纬油泵油嘴股份有限公司 | Special endurance test bench for fuel metering valve |
| CN105067255B (en) * | 2015-09-16 | 2017-10-20 | 北京亚新科天纬油泵油嘴股份有限公司 | The special durable test stand of fuel metering valve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SICHUAN FANHUA AVIATION INSTRUMENT + ELECTRIC CO., Free format text: FORMER NAME: SICHUAN FANHUA AVIATION INSTRUMENT ELECTRICAL APPARATUS PLANT |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 625000 No. 99 Simon South Road, Yucheng District, Sichuan, Ya'an Patentee after: SICHUAN FANHUA AVIATION INSTRUMENT & ELECTRIC CO., LTD. Address before: 625000 No. 99 Simon South Road, Yucheng District, Sichuan, Ya'an Patentee before: Sichuan Fanhua Aviation Instrument Electrical Apparatus Plant |
|
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: Xindu Industrial District of Chengdu city Sichuan province 610500 Industrial Road No. 389 Patentee after: SICHUAN FANHUA AVIATION INSTRUMENT & ELECTRIC CO., LTD. Address before: 625000 No. 99 Simon South Road, Yucheng District, Sichuan, Ya'an Patentee before: SICHUAN FANHUA AVIATION INSTRUMENT & ELECTRIC CO., LTD. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090722 |
|
| CX01 | Expiry of patent term |