CN106762309B - Gas intermittent injection quantity measuring device and gas intermittent injection quantity measuring system - Google Patents
Gas intermittent injection quantity measuring device and gas intermittent injection quantity measuring system Download PDFInfo
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- CN106762309B CN106762309B CN201611186168.1A CN201611186168A CN106762309B CN 106762309 B CN106762309 B CN 106762309B CN 201611186168 A CN201611186168 A CN 201611186168A CN 106762309 B CN106762309 B CN 106762309B
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- 238000002347 injection Methods 0.000 title claims abstract description 75
- 239000007924 injection Substances 0.000 title claims abstract description 75
- 230000003139 buffering effect Effects 0.000 claims description 19
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 8
- 238000005406 washing Methods 0.000 claims description 2
- 238000005259 measurement Methods 0.000 abstract description 34
- 239000007921 spray Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000000446 fuel Substances 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 239000012530 fluid Substances 0.000 description 5
- 238000009527 percussion Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 238000005452 bending Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000001186 cumulative effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 230000009466 transformation Effects 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000004880 explosion Methods 0.000 description 2
- 230000035800 maturation Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003111 delayed effect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M65/00—Testing fuel-injection apparatus, e.g. testing injection timing ; Cleaning of fuel-injection apparatus
- F02M65/001—Measuring fuel delivery of a fuel injector
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Volume Flow (AREA)
Abstract
The invention provides a gas intermittent jet quantity measuring device and a gas intermittent jet quantity measuring system, which belong to the field of flow measurement of gas nozzles. The gas intermittent injection quantity measuring system comprises a high-pressure stable gas input device and a gas intermittent injection quantity measuring device. The intermittent gas jet quantity measuring device can be used for accurately measuring the gas flow quantity of the intermittent nozzle through the mass flow meter by accumulating the intermittently jetted gas and then continuously passing through the mass flow meter. The gas intermittent jet quantity measuring system can realize accurate measurement of the jet flow quantity of the gas intermittent nozzle.
Description
Technical field
The present invention relates to the field of flow measurement of gas nozzle, in particular to gas interrupted injection measuring device
And gas interrupted injection system for measuring quantity.
Background technique
Currently, the flow measurement of gas nozzle only has drainage, by the way that the water in enclosure space to be discharged, arranged by measurement
The volume or quality of water outlet indirectly measure the gaseous mass ejected.Drainage there is a problem of following: 1, being surveyed using indirect
Amount method can introduce large error；2, since enclosure space is limited, injecting times are severely limited, and repeatedly measurement can not；
3, can not increase due to injecting times, flow error caused by nozzle assembly is worn accurately is measured.This abrasion,
Nozzle is also resulted in the growth for using the time, can not effectively introduce amendment, causes to discharge after burning exceeded.
And directly measured using mass flowmenter, bigger error can be introduced, main cause is current mass flowmenter
It is to be designed for continuous fluid, the response time is much larger than intermittent flow amount transformation period, causes it not to be capable of measuring intermittent
The gas flow of nozzle injection.
Summary of the invention
The purpose of the present invention is to provide gas interrupted injection measuring devices, to realize to intermittent orifice gas flow
Carry out precise measurement.
It is another object of the present invention to provide gas interrupted injection system for measuring quantity, also can be realized to intermittent spray
The precise measurement of mouth injection gas flow.
The present invention is implemented as follows:
Gas interrupted injection measuring device provided by the invention, including mounting rack, pedestal, intermittent gas nozzle,
One surge tank and the second surge tank, mounting rack are set to pedestal, and the bottom of pedestal is provided with pulley, and the first surge tank and second are delayed
It rushes tank and is respectively arranged at mounting rack, the first surge tank is provided with the first air inlet and the first gas outlet, and the second surge tank is provided with
Second air inlet and the second gas outlet, intermittent gas nozzle are connected to by admission line with the first air inlet, the first gas outlet
And second be connected between air inlet by connecting pipe, connecting pipe is provided with first throttle valve, and the second gas outlet is provided with out
Feed channel, outlet pipe are disposed with second throttle and mass flowmenter, second throttle be set to the second gas outlet and
Between mass flowmenter；First air inlet is provided with filter screen, and the first surge tank is provided with the first barometer, and the second surge tank is set
It is equipped with the second barometer.
The amount of injection of gaseous fuel is of great significance in the matching and calibration of engine, and the calibration of engine is largely
Upper is exactly to determine suitable fuel injection amount.So far, the measurement gas fuel nozzle of domestic a maturation not yet
The device of flow.Nozzle inlet and the pressure difference of outlet can cause very big shadow to spray air flow in the measurement process of nozzle flow
It rings.The method for needing to be averaged using multi-injection when measurement, but in this process, frequent unlatching and pass due to nozzle
Close, the injection of gas be not it is continuous, it is existing to be measured frequently with drainage.
Drainage there is a problem of following:
1, using indirect measurement method, large error can be introduced；
2, since enclosure space is limited, injecting times are severely limited, and repeatedly measurement can not；
3, can not increase due to injecting times, flow error caused by nozzle assembly is worn accurately is measured.
This abrasion also results in nozzle with the growth for using the time, can not effectively introduce amendment, causes to discharge after burning exceeded.
And directly adopt mass flowmenter and directly measure, bigger error can be introduced, main cause is current quality stream
Meter is designed for continuous fluid, and the response time is much larger than intermittent flow amount transformation period, between causing it not to be capable of measuring
The gas flow of formula of having a rest nozzle injection.
The present invention is buffered using two-stage, and two-stage throttling, when original state, first throttle valve and second throttle are turned off,
Orifice gas enters the first surge tank through admission line and is buffered, and by adjusting first throttle valve, can control the first buffering
First throttle valve is opened in the air pressure of tank, and gas enters the second surge tank through connecting pipe, and the second surge tank is buffered simultaneously again
Second throttle is opened in accumulation, and the gas accumulated in the second surge tank can continuously be flowed out through outlet pipe, quality
Flowmeter can carry out precise measurement to the gas successively flowed out.To realize the gas stream ejected to intermittent nozzle
The precise measurement of amount.
In conclusion the intermittent flow amount that the present invention sprays nozzle carries out cumulative mean, pass through continuous fluid quality
Flowmeter directly carries out high-acruracy survey.The present invention can also control feature according to the measurement of interrupted injection, be throttled by adjusting
Valve adapts to different situations, reaches precise measurement purpose.The present invention can also control the first surge tank by adjusting first throttle valve
Air pressure, reach change injection back pressure, measure different influences of the injection back pressures to course of injection；Also it can measure nozzle flow characteristic
Curve；It also can measure the relationship etc. between nozzle wear amount and injection control parameter, provide accurate flow amendment for nozzle.
Pedestal and mounting rack, the first surge tank and the second surge tank easy to remove, to be moved under different environment are set
It is tested, operates and carry and is more convenient.
First barometer is set, on the one hand, the first barometrical numerical value has been reacted from side to be gathered in the first surge tank
Gas volume is sprayed, when the first barometrical numerical value reaches preset value, then should open first throttle valve, in the first surge tank
Gas be discharged into the second surge tank, avoid the gas pressure in the first surge tank excessive, occur the first surge tank explosion danger,
Meanwhile it can more easily be controlled according to the opening and closing of the first barometrical Numerical Control first throttle valve；Another side
Face, the air pressure adjustment in the first surge tank shown by the first barometer control first throttle valve.Barometrical measured value
It is the injection back pressure of intermittent gas nozzle, back pressure can be sprayed by changing, measuring different back pressures influences course of injection.If
The second barometer is set, since mass flowmenter only just can guarantee the accurate of measurement numerical value in the case where gas continues through
Degree, and the second barometer can react the volume of the gas gathered in the second surge tank, when the numerical value of the second barometric surveying reaches
When to preset value, second throttle is just opened, at this point, can guarantee continuously because having enough gas in the second surge tank
By mass flowmenter, and then it can guarantee the accuracy of mass flow meter measurement value.In conclusion the first barometer and second
Barometer is the important component for guaranteeing the accuracy of measured value of mass flowmenter.It is safer, more accurately.
Simultaneously as intermittent gas nozzle injection gas enters the first surge tank and can generate biggish impulse force, impact force
It will cause and worn at the first air inlet of the first surge tank, in the case where long-time use, can be gathered in the first air inlet
Some impurity, and intermittent gas nozzle will bring together impurity into the first surge tank and subsequent dress during spraying
It sets.Be arranged filter screen, can by intermittent gas spray injection bring into impurity barrier outside, guarantee subsequent measurement it is smooth into
Row.
Further, connecting pipe includes buffering pipe, and second throttle is set to buffering pipe.
Further, buffering pipe is in "U" shaped, and the both ends of buffering pipe are connected to the connecting pipe respectively.
Further, admission line is high-voltage-stable gas source input channel.
Further, gas source input channel is provided with gas ejector, and gas ejector is provided with intermittent gas nozzle.
Further, gas source input channel bending is in " L " font, and gas source input channel is connected to the first air inlet.
Further, the first air inlet is set to the bottom of the first surge tank, and the second gas outlet is set to the second surge tank
Top.
Further, the first surge tank and the second surge tank are respectively vacuum tank.
Further, the first surge tank is internally provided with soft inner canister made of rubber, and soft inner canister is slow with first
It rushes and is provided with gap between tank.
A kind of gas interrupted injection system for measuring quantity, including high-voltage-stable gas input device gas interrupted injection measurement
Device, high-voltage-stable gas input device are connected to intermittent gas nozzle.
Beneficial effects of the present invention: the gas interrupted injection measuring device that the technical program provides is by by interrupted injection
Gas buildup then continue through mass flowmenter, by mass flowmenter realize to intermittent nozzle sprays gas flow into
Row precise measurement.
The gas interrupted injection system for measuring quantity that the technical program provides can be realized to the intermittent nozzle injection stream of gas
The precise measurement of amount.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 is the first knot of the first surge tank in gas interrupted injection measuring device provided in an embodiment of the present invention
The structural schematic diagram of structure；
Fig. 2 is second of knot of the first surge tank in gas interrupted injection measuring device provided in an embodiment of the present invention
The structural schematic diagram of structure
Fig. 3 is the structural representation of the second surge tank in gas interrupted injection measuring device provided in an embodiment of the present invention
Figure；
Fig. 4 is the structural representation of the interface channel in gas interrupted injection measuring device provided in an embodiment of the present invention
Figure；
Fig. 5 is the overall structure diagram in gas interrupted injection measuring device provided in an embodiment of the present invention；
Fig. 6 is by surveying the curve graph between gas mass flow at gas interrupted injection mass flow and mass flowmenter.
Icon: the intermittent gas nozzle of 100-；The first surge tank of 101-；The second surge tank of 102-；103- admission line；
104- connecting pipe；105- first throttle valve；106- outlet pipe；107- second throttle；108- mass flowmenter；109- is slow
Washing pipe road；The first barometer of 200-；201 second barometers；202 soft inner canisters.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is implemented
The component of example can be arranged and be designed with a variety of different configurations.
Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below claimed
The scope of the present invention, but be merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, this field is common
Technical staff's every other embodiment obtained without creative efforts belongs to the model that the present invention protects
It encloses.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " first ", " second " etc. are only used for distinguishing description, without
It can be interpreted as indication or suggestion relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can be
Mechanical connection, is also possible to be electrically connected；It can be directly connected, two can also be can be indirectly connected through an intermediary
Connection inside element.For the ordinary skill in the art, above-mentioned term can be understood in the present invention with concrete condition
In concrete meaning.
Specific embodiment, referring to figs. 1 to Fig. 5.
Gas interrupted injection measuring device provided in this embodiment, including intermittent gas nozzle 100, the first surge tank
101 and second surge tank 102, as shown in Figure 1, the first surge tank 101 is provided with the first air inlet and the first gas outlet, such as Fig. 3
Shown, the second surge tank 102 is provided with the second air inlet and the second gas outlet, as shown in Figure 1, intermittent gas nozzle 100 is logical
It crosses admission line 103 to be connected to the first air inlet, as shown in figure 5, passing through communicating pipe between the first gas outlet and the second air inlet
Road 104 is connected to, as shown in figure 4, connecting pipe 104 is provided with first throttle valve 105, the second gas outlet is provided with outlet pipe
106, outlet pipe 106 is disposed with second throttle 107 and mass flowmenter 108, and second throttle 107 is set to second
Between gas outlet and mass flowmenter 108.
The amount of injection of gaseous fuel is of great significance in the matching and calibration of engine, and the calibration of engine is largely
Upper is exactly to determine suitable fuel injection amount.So far, the measurement gas fuel nozzle of domestic a maturation not yet
The device of flow.Nozzle inlet and the pressure difference of outlet can cause very big shadow to spray air flow in the measurement process of nozzle flow
It rings.The method for needing to be averaged using multi-injection when measurement, but in this process, frequent unlatching and pass due to nozzle
Close, the injection of gas be not it is continuous, it is existing to be measured frequently with drainage.
Drainage there is a problem of following:
1, using indirect measurement method, large error can be introduced；
2, since enclosure space is limited, injecting times are severely limited, and repeatedly measurement can not；
3, can not increase due to injecting times, flow error caused by nozzle assembly is worn accurately is measured.
This abrasion also results in nozzle with the growth for using the time, can not effectively introduce amendment, causes to discharge after burning exceeded.And
It directlys adopt mass flowmenter 108 directly to measure, bigger error can be introduced, main cause is current mass flowmenter 108
It is to be designed for continuous fluid, the response time is much larger than intermittent flow amount transformation period, causes it not to be capable of measuring intermittent
The gas flow of nozzle injection.
The present invention is buffered using two-stage, two-stage throttling, and when original state, first throttle valve 105 and second throttle 107 are equal
It closes, orifice gas is buffered through admission line 103 into the first surge tank 101, can by adjusting first throttle valve 105
To control the air pressure of the first surge tank 101, first throttle valve 105 is opened, gas enters the second surge tank through connecting pipe 104
102, the second surge tank 102 is buffered and is accumulated again, opens second throttle 107, is accumulated in the second surge tank 102
Gas can continuously be flowed out through outlet pipe 106, and mass flowmenter 108 can carry out the gas successively flowed out
Precise measurement.To realize the precise measurement of the gas flow ejected to intermittent nozzle.
As shown in fig. 6, the abscissa in figure is the time, ordinate is gas mass flow, and " rectangle frame " in Fig. 6 represents
Be the gas interrupted injection mass flow amount of changing with time, intermittent gas nozzle 100 is primarily referred to as in the present embodiment and is sprayed
The gas flow of injection, what the curve in Fig. 6 represented be at mass flowmenter surveyed gas mass flow with the variation of time
Amount, the gas mass flow that mass flowmenter measures are measured after carrying out cumulative mean to gas interrupted injection mass flow
Mean value.In conclusion the intermittent flow amount that the present invention sprays nozzle carries out cumulative mean, pass through continuous fluid mass flow
Meter 108 directly carries out high-acruracy survey.The present invention can also control feature according to the measurement of interrupted injection, be throttled by adjusting
Valve adapts to different situations, reaches precise measurement purpose.The present invention it is slow can also to control first by adjusting first throttle valve 105
The air pressure for rushing tank 101 reaches change injection back pressure, measures influence of the different injection back pressures to course of injection；Also it can measure nozzle
Rating curve；It also can measure the relationship etc. between nozzle wear amount and injection control parameter, provide accurate flow for nozzle
Amendment.
Pedestal and mounting rack, the first surge tank 101 easy to remove and the second surge tank 102 are set, it is different to be moved to
It is tested under environment, operates and carry and is more convenient.
First barometer 200 is set, on the one hand, the numerical value of the first barometer 200 has reacted the first surge tank 101 from side
The injection gas volume of middle accumulation should then open first throttle valve when the numerical value of the first barometer 200 reaches preset value
105, the gas in the first surge tank 101 is discharged into the second surge tank 102, avoids the gas pressure in the first surge tank 101 excessive,
The danger of the first surge tank 101 explosion occurs, meanwhile, it can be according to the Numerical Control first throttle valve 105 of the first barometer 200
Opening and closing, more easily control；On the other hand, in the first surge tank 101 by the display of the first barometer 200
Air pressure adjustment controls first throttle valve 105.Barometrical measured value is also the injection back pressure of intermittent gas nozzle 100, can be with
Back pressure is sprayed by changing, measuring different back pressures influences course of injection.Second barometer 201 is set, due to mass flowmenter
108 only just can guarantee the accuracy of measurement numerical value in the case where gas continues through, and the second barometer 201 can react
The volume of the gas gathered in second surge tank 102 is just opened when the numerical value of the second barometer 201 measurement reaches preset value
Second throttle 107, at this point, can guarantee because having enough gas in the second surge tank 102 continually by mass flow
Meter 108, and then can guarantee the accuracy of 108 measured value of mass flowmenter.In conclusion the first barometer 200 and the second gas
Pressure meter 201 is the important component for guaranteeing the accuracy of measured value of mass flowmenter 108.It is safer, more accurately.
Simultaneously as intermittent gas nozzle 100, which sprays gas, can generate biggish impulse force into the first surge tank 101,
Impact force will cause to wear at the first air inlet of the first surge tank 101, in the case where long-time use, in the first air inlet
Mouth can gather some impurity, and intermittent gas nozzle 100 will bring together impurity into the first surge tank during spraying
101 and subsequent device.Filter screen is set, and the impurity that can bring the injection of intermittent gas into obstructs outside, after guarantee
Continuous measurement is gone on smoothly.
Connecting pipe 104 includes buffering pipe 109, and second throttle 107 is set to buffering pipe 109.
Since intermittent gas nozzle 100 discontinuously sprays gas in the first surge tank 101, discontinuously eject
Existing gas collective effect in gas and the first surge tank 101 can form impulse wave at the first gas outlet, separator tube is arranged
Road 109 can alleviate impulse wave to the percussion of the first surge tank 101, play the role of buffering.When opening first throttle valve
105 and when second throttle 107, buffering pipe 109 can alleviate the impulse wave to the gas entered in the second surge tank 102
Percussion, and then guarantee that gas continuous flow is measured through mass flowmenter 108.
In the present embodiment, buffering pipe 109 be in "U" shaped, the both ends of buffering pipe 109 respectively with the connecting pipe
104 connections.The main function of buffering pipe 109 is that alleviation impulse wave, buffering pipe 109 can use various detour shapes,
For example, semicircular arc, "U" shaped can also be formed by a plurality of bending pipeline.
As shown in Fig. 2, the first surge tank 101 is internally provided with soft inner canister 202 made of rubber, soft inner canister
202 and first are provided with gap between surge tank 101.Since intermittent gas nozzle 100 is discontinuously toward the first surge tank 101
Interior injection gas, the existing gas collective effect in the gas discontinuously ejected and the first surge tank 101 can be in the first outlet
Impulse wave is formed at mouthful.Soft inner canister 202 is set, and the gas sprayed into the first surge tank 101 through intermittent gas nozzle 100 rushes
When hitting soft inner canister 202, soft inner canister 202 can play the role of buffering to injection gas, and then make the injection gas
The percussion of original gas weakens in body and the first surge tank 101, and then the impulse wave that can weaken at the first gas outlet is anti-
It answers, and then guarantees that gas continuous flow is measured through mass flowmenter 108.
Admission line 103 is high-voltage-stable gas source input channel.Pressure-stabilized air source is used, primarily to reducing nozzle air inlet
The pressure difference of mouth and gas outlet guarantees the accuracy of final flow rate measured value.
As shown in Figure 1, gas source input channel is provided with gas ejector, gas ejector is provided with intermittent gas nozzle
100.Gas ejector is used in the present embodiment.
The bending of gas source input channel is in " L " font, and gas source input channel is connected to the first air inlet.Gas source input channel is adopted
With " L " type, gas is sprayed before entering the first surge tank 101 first through gas source input channel, the detour shape of gas source input channel
Shape can be realized the first time buffering of injection gas.
As shown in figures 1 and 3, the first air inlet is set to the bottom of the first surge tank 101, and the second gas outlet is set to
The top of two surge tanks 102.Gas density is less than air, and injection gas enters through the first air inlet, flows out through the second gas outlet,
The flowing trend for meeting gas, can reduce gas to the percussion of 102 tank skin of the first surge tank 101 and the second surge tank.
First surge tank 101 and the second surge tank 102 are respectively vacuum tank.First surge tank 101 and the second surge tank 102
General holding vessel can be used, vacuum tank can also be used.
A kind of gas interrupted injection system for measuring quantity, including high-voltage-stable gas input device gas interrupted injection measurement
Device, high-voltage-stable gas input device are connected to intermittent gas nozzle 100.
High-voltage-stable gas input device input high-voltage-stable gas, using intermittent gas nozzle 100 spurt into
It in feed channel 103, is most flowed out afterwards through mass flowmenter 108, can be realized the accurate survey to intermittent nozzle sprays gas flow
Amount.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of gas interrupted injection measuring device, which is characterized in that including mounting rack, pedestal, intermittent gas nozzle,
One surge tank and the second surge tank, the mounting rack are set to the pedestal, and the bottom of the pedestal is provided with pulley, and described
One surge tank and second surge tank are respectively arranged at the mounting rack, first surge tank be provided with the first air inlet and
First gas outlet, second surge tank are provided with the second air inlet and the second gas outlet, and the intermittent gas nozzle passes through
Admission line is connected to first air inlet, is connected between first gas outlet and second air inlet by connecting pipe
Logical, the connecting pipe is provided with first throttle valve, and second gas outlet is provided with outlet pipe, and the outlet pipe is successively
It is provided with second throttle and mass flowmenter, the second throttle is set to second gas outlet and the mass flow
Between meter；First air inlet is provided with filter screen, and first surge tank is provided with the first barometer, second buffering
Tank is provided with the second barometer.
2. gas interrupted injection measuring device according to claim 1, which is characterized in that the connecting pipe includes slow
Washing pipe road, the second throttle are set to the buffering pipe.
3. gas interrupted injection measuring device according to claim 2, which is characterized in that the buffering pipe is in " U "
Font, the both ends of the buffering pipe are connected to the connecting pipe respectively.
4. gas interrupted injection measuring device according to claim 1, which is characterized in that the admission line is high pressure
Stablize gas source input channel.
5. gas interrupted injection measuring device according to claim 4, which is characterized in that the gas source input channel is set
It is equipped with gas ejector, the gas ejector is provided with the intermittent gas nozzle.
6. gas interrupted injection measuring device according to claim 4, which is characterized in that the gas source input channel is curved
Folding is in " L " font, and the gas source input channel is connected to first air inlet.
7. gas interrupted injection measuring device according to claim 6, which is characterized in that the first air inlet setting
In the bottom of first surge tank, second gas outlet is set to the top of second surge tank.
8. gas interrupted injection measuring device according to claim 1, which is characterized in that first surge tank and institute
Stating the second surge tank is respectively vacuum tank.
9. gas interrupted injection measuring device according to claim 1, which is characterized in that first surge tank it is interior
Portion is provided with soft inner canister made of rubber, is provided with gap between the soft inner canister and first surge tank.
10. a kind of gas interrupted injection system for measuring quantity, which is characterized in that wanted including high-voltage-stable gas input device and right
Gas interrupted injection measuring device described in asking any one of 1 to 9, the high-voltage-stable gas input device and it is described between
The connection of formula of having a rest gas nozzle.
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| CN201611186168.1A CN106762309B (en) | 2016-12-20 | 2016-12-20 | Gas intermittent injection quantity measuring device and gas intermittent injection quantity measuring system |
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| CN101705884A (en) * | 2009-11-06 | 2010-05-12 | 北京理工大学 | Equipment for calibrating flow rate characteristic of fuel gas nozzle |
| CN103808533A (en) * | 2012-11-12 | 2014-05-21 | 洛阳凯美胜石化设备有限公司 | Gas sampling device |
| CN103206995A (en) * | 2013-04-11 | 2013-07-17 | 西安拓普电气有限责任公司 | Air-flow measuring device and air-flow measuring method applicable to workshop conditions |
| CN103364661A (en) * | 2013-07-09 | 2013-10-23 | 镇江恒驰科技有限公司 | Device for testing performance of natural gas injection electromagnetic valve and testing method of device |
| CN103697961A (en) * | 2013-12-26 | 2014-04-02 | 武汉理工大学 | Gas fuel nozzle flow measurement pressurizer |
| CN105445007A (en) * | 2015-11-23 | 2016-03-30 | 沈阳黎明航空发动机(集团)有限责任公司 | Gas fuel control valve flow characteristic testing system and method for combustion gas turbine |
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| CN106762309A (en) | 2017-05-31 |
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