CN206339274U - Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity - Google Patents
Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity Download PDFInfo
- Publication number
- CN206339274U CN206339274U CN201621406385.2U CN201621406385U CN206339274U CN 206339274 U CN206339274 U CN 206339274U CN 201621406385 U CN201621406385 U CN 201621406385U CN 206339274 U CN206339274 U CN 206339274U
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- gas
- surge tank
- interrupted injection
- measuring device
- nozzle
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Abstract
Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity that the utility model is provided, belong to the field of flow measurement of gas nozzle, including batch (-type) gas nozzle, the first surge tank and the second surge tank, batch (-type) gas nozzle is connected by admission line with the first surge tank, connected between first surge tank and the second surge tank by connecting pipe, connecting pipe is provided with first throttle valve, second surge tank is provided with outlet pipe, and outlet pipe is disposed with second throttle and mass flowmenter.Gas interrupted injection system for measuring quantity includes high-voltage-stable gas input device and gas interrupted injection measuring device.Gas interrupted injection measuring device is realized by mass flowmenter by the way that then the gas buildup of interrupted injection is continued through into mass flowmenter and carries out accurate measurement to batch (-type) orifice gas flow.Gas interrupted injection system for measuring quantity can realize the accurate measurement to gas batch (-type) nozzle injection flow.
Description
Technical field
The utility model is related to the field of flow measurement of gas nozzle, in particular to gas interrupted injection measurement
Device and gas interrupted injection system for measuring quantity.
Background technology
At present, the flow measurement of gas nozzle only has drainage, by the way that the water in closing space is discharged, passes through the row of measurement
The volume or quality of water outlet, indirectly measure the gaseous mass ejected.The problem of drainage has following：1st, using indirect survey
Amount method, can introduce larger error；2nd, because closing space is limited, injecting times are severely limited, and repeatedly measure impossible；
3rd, can not be to increasing due to injecting times, flow error is accurately measured caused by nozzle assembly abrasion.This abrasion,
Also result in growth of the nozzle with use time, it is impossible to effective to introduce amendment, discharge exceeded after causing burning.
And mass flowmenter direct measurement is used, bigger error can be introduced, main cause is current mass flowmenter
It is to be designed for continuous fluid, its response time is much larger than intermittent flow amount transformation period, causes it to measure batch (-type)
The gas flow of nozzle injection.
Utility model content
The purpose of this utility model is to provide gas interrupted injection measuring device, to realize to batch (-type) orifice gas
Flow carries out accurate measurement.
Another purpose of the present utility model is to provide gas interrupted injection system for measuring quantity, can also be realized to interval
The accurate measurement of formula nozzle sprays gas flow.
What the utility model was realized in：
The gas interrupted injection measuring device that the utility model is provided, including batch (-type) gas nozzle, the first surge tank
With the second surge tank, the first surge tank is provided with the first air inlet and the first gas outlet, and the second surge tank is provided with the second air inlet
Mouth and the second gas outlet, batch (-type) gas nozzle are connected by admission line with the first air inlet, and the first gas outlet and second is entered
Connected between gas port by connecting pipe, connecting pipe is provided with first throttle valve, the second gas outlet is provided with outlet pipe, gone out
Feed channel is disposed with second throttle and mass flowmenter, and second throttle is arranged at the second gas outlet and mass flowmenter
Between.
The emitted dose of gaseous fuel is significant in the matching and calibration of engine, and the demarcation of engine is largely
Upper is exactly to determine suitable fuel injection amount.So far, the country is also without a ripe measurement gas fuel nozzle
The device of flow.Nozzle inlet and the pressure differential of outlet can cause very big shadow to spray air flow in the measurement process of nozzle flow
Ring.The method for needing to average using multi-injection during 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.
The problem of drainage has following：
1st, using indirect measurement method, larger error can be introduced；
2nd, because closing space is limited, injecting times are severely limited, and repeatedly measure impossible；
3rd, can not be to increasing due to injecting times, flow error is accurately measured caused by nozzle assembly abrasion.
This abrasion, also results in growth of the nozzle with use time, it is impossible to effective to introduce amendment, discharges exceeded after causing burning.
And mass flowmenter direct measurement is directly used, bigger error can be introduced, main cause is current quality stream
Gauge is designed for continuous fluid, and its response time is much larger than intermittent flow amount transformation period, between causing it to measure
The gas flow of formula of having a rest nozzle injection.
The utility model is buffered using two-stage, two-stage throttling, and during original state, first throttle valve and second throttle are closed
Close, orifice gas enters row buffering through admission line into the first surge tank, by adjusting first throttle valve, first can be controlled to delay
The air pressure of tank is rushed, first throttle valve is opened, gas enters the second surge tank through connecting pipe, and the second surge tank is buffered again
And accumulate, second throttle is opened, the gas accumulated in the second surge tank continuously can flow out through outlet pipe, matter
Amount flowmeter can carry out accurate measurement to the gas successively flowed out.So as to realize the gas ejected to batch (-type) nozzle
The accurate measurement of flow.
In summary, the intermittent flow amount that nozzle sprays is carried out cumulative mean by the utility model, passes through continuous fluid
Mass flowmenter directly carries out high-acruracy survey.The utility model, can also control feature according to the measurement of interrupted injection, pass through
Adjust choke valve and adapt to different situations, reach accurate measurement purpose.The utility model can also be controlled by adjusting first throttle valve
The air pressure of the first surge tank is made, change injection back pressure is reached, influence of the different injection back pressures to course of injection is measured；Also it is measurable
Nozzle flow characteristic curve；Relation between also measurable nozzle wear amount and injection control parameter etc., is provided accurately for nozzle
Flow correction.
Further, connecting pipe includes buffering pipe, and second throttle is arranged at buffering pipe.
Further, buffering pipe is in "U" shaped, and the two ends of buffering pipe are connected with the connecting pipe respectively.
Further, outlet pipe is provided with activated charcoal strainer.
Further, admission line is high-voltage-stable source of the gas input channel.
Further, source of the gas input channel is provided with gas ejector, and gas ejector is provided with batch (-type) gas nozzle.
Further, source of the gas input channel bending is in " L " font, and source of the gas input channel is connected with the first air inlet.
Further, the first air inlet is arranged at the bottom of the first surge tank, and the second gas outlet is arranged at the second surge tank
Top.
Further, the first surge tank and the second surge tank are respectively vacuum 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 is connected with batch (-type) gas nozzle.
The beneficial effects of the utility model：The gas interrupted injection measuring device that the technical program is provided passes through intermittently
Then the gas buildup of injection continues through mass flowmenter, is realized by mass flowmenter to batch (-type) nozzle sprays gas stream
Amount carries out accurate measurement.
The gas interrupted injection system for measuring quantity that the technical program is provided can be realized to gas batch (-type) nozzle injection stream
The accurate measurement of amount.
Brief description of the drawings
, below will be to be used needed for embodiment in order to illustrate more clearly of the technical scheme of the utility model embodiment
Accompanying drawing be briefly described, it will be appreciated that the following drawings illustrate only some embodiments of the present utility model, therefore should not be by
Regard the restriction to scope as, for those of ordinary skill in the art, on the premise of not paying creative work, may be used also
To obtain other related accompanying drawings according to these accompanying drawings.
The structure of the first surge tank in the gas interrupted injection measuring device that Fig. 1 provides for the utility model embodiment
Schematic diagram；
The structure of the second surge tank in the gas interrupted injection measuring device that Fig. 2 provides for the utility model embodiment
Schematic diagram；
The structure of interface channel in the gas interrupted injection measuring device that Fig. 3 provides for the utility model embodiment is shown
It is intended to；
Overall structure diagram in the gas interrupted injection measuring device that Fig. 4 provides for the utility model embodiment；
Fig. 5 is by surveying the curve map between gas mass flow at gas interrupted injection mass flow and mass flowmenter.
Icon：100- batch (-type) gas nozzles；The surge tanks of 101- first；The surge tanks of 102- second；103- admission lines；
104- connecting pipes；105- first throttle valves；106- outlet pipes；107- second throttle；108- mass flowmenters；109- delays
Washing pipe road；200- barometers.
Embodiment
It is new below in conjunction with this practicality to make the purpose, technical scheme and advantage of the utility model embodiment clearer
Accompanying drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that retouched
The embodiment stated is a part of embodiment of the utility model, rather than whole embodiments.Generally here described in accompanying drawing and
The component of the utility model embodiment shown can be arranged and designed with a variety of configurations.
Therefore, the detailed description of embodiment of the present utility model below to providing in the accompanying drawings is not intended to limit requirement
The scope of the present utility model of protection, but it is merely representative of selected embodiment of the present utility model.Based in the utility model
Embodiment, the every other embodiment that those of ordinary skill in the art are obtained under the premise of creative work is not made, all
Belong to the scope of the utility model protection.
It should be noted that：Similar label and letter represents similar terms in following accompanying drawing, therefore, once a certain Xiang Yi
It is defined in individual accompanying drawing, then it further need not be defined and explained in subsequent accompanying drawing.
, it is necessary to which explanation, term " first ", " second " etc. are only used for distinguishing description in description of the present utility model,
And it is not intended that indicating or implying relative importance.
In description of the present utility model, in addition it is also necessary to which explanation, unless otherwise clearly defined and limited, term " are set
Put ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, or be integrally connected；Can
To be mechanical connection or electrical connection；Can be joined directly together, can also be indirectly connected to by intermediary, Ke Yishi
The connection of two element internals.For the ordinary skill in the art, with concrete condition above-mentioned term can be understood at this
Concrete meaning in utility model.
Embodiment, referring to figs. 1 to Fig. 4.
The gas interrupted injection measuring device that the present embodiment is provided, including batch (-type) 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. 2
Shown, the second surge tank 102 is provided with the second air inlet and the second gas outlet, as shown in figure 1, batch (-type) gas nozzle 100 is logical
Cross admission line 103 to connect with the first air inlet, as shown in figure 4, passing through communicating pipe between the first gas outlet and the second air inlet
Road 104 is connected, as shown in figure 3, 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 arranged at second
Between gas outlet and mass flowmenter 108.
The emitted dose of gaseous fuel is significant in the matching and calibration of engine, and the demarcation of engine is largely
Upper is exactly to determine suitable fuel injection amount.So far, the country is also without a ripe measurement gas fuel nozzle
The device of flow.Nozzle inlet and the pressure differential of outlet can cause very big shadow to spray air flow in the measurement process of nozzle flow
Ring.The method for needing to average using multi-injection during 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.
The problem of drainage has following：
1st, using indirect measurement method, larger error can be introduced；
2nd, because closing space is limited, injecting times are severely limited, and repeatedly measure impossible；
3rd, can not be to increasing due to injecting times, flow error is accurately measured caused by nozzle assembly abrasion.
This abrasion, also results in growth of the nozzle with use time, it is impossible to effective to introduce amendment, discharges exceeded after causing burning.And
The direct measurement of mass flowmenter 108 is directly used, bigger error can be introduced, main cause is current mass flowmenter 108
It is to be designed for continuous fluid, its response time is much larger than intermittent flow amount transformation period, causes it to measure batch (-type)
The gas flow of nozzle injection.
The utility model is buffered using two-stage, two-stage throttling, during original state, first throttle valve 105 and second throttle
107 are turned off, and orifice gas enters row buffering through admission line 103 into the first surge tank 101, by adjusting first throttle valve
105, the air pressure of the first surge tank 101 can be controlled, first throttle valve 105 is opened, gas enters second through connecting pipe 104 and delayed
Tank 102 is rushed, the second surge tank 102 is buffered and accumulated again, open second throttle 107, accumulated in the second surge tank 102
In gas continuously can be flowed out through outlet pipe 106, the gas that 108 pairs of mass flowmenter successively flows out can be with
Carry out accurate measurement.So as to realize the accurate measurement of the gas flow ejected to batch (-type) nozzle.
As shown in figure 5, the abscissa in figure is the time, ordinate is that " rectangle frame " in gas mass flow, Fig. 5 is represented
Be to be primarily referred to as batch (-type) gas nozzle 100 in the gas interrupted injection mass flow amount of changing with time, the present embodiment to spray
What the curve in the gas flow of injection, Fig. 5 was represented is that the change of gas mass flow over time is surveyed at mass flowmenter
Amount, the gas mass flow that mass flowmenter is measured is gas interrupted injection mass flow to be carried out measured by after cumulative mean
Average.In summary, the intermittent flow amount that nozzle sprays is carried out cumulative mean by the utility model, passes through continuous fluid quality
Flowmeter 108 directly carries out high-acruracy survey.The utility model, can also control feature according to the measurement of interrupted injection, pass through
Adjust choke valve and adapt to different situations, reach accurate measurement purpose.The utility model can also be by adjusting first throttle valve
105, the air pressure of the first surge tank 101 is controlled, change injection back pressure is reached, shadow of the different injection back pressures to course of injection is measured
Ring；Also measurable nozzle flow characteristic curve；Relation between also measurable nozzle wear amount and injection control parameter etc., for spray
Mouth provides accurate flow amendment.
Outlet pipe 106 is provided with activated charcoal strainer, and activated charcoal strainer can will flow through the gas of outlet pipe 106
In part pernicious gas filter out, then the dirt to air can be reduced by being discharged into the gas outside air or outlet pipe
Dye.Ensure gas emission matching standard.
Connecting pipe 104 includes buffering pipe 109, and second throttle 107 is arranged at buffering pipe 109.
Because batch (-type) gas nozzle 100 is discontinuously toward gas injection 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, set separator tube
Road 109, can alleviate percussion of the impulse wave to the first surge tank 101, play a part of buffering.When opening first throttle valve
105 and during second throttle 107, buffering pipe 109 can alleviate the impulse wave to entering the gas in the second surge tank 102
Percussion, and then ensure that gas continuous flow is measured through mass flowmenter 108.
In the present embodiment, buffering pipe 109 is in "U" shaped, the two ends of buffering pipe 109 respectively with the connecting pipe
104 connections.The main function of buffering pipe 109 is to alleviate impulse wave, and buffering pipe 109 can use various roundabout shapes,
Such as, semicircular arc, "U" shaped can also be formed by a plurality of bending pipeline.
As shown in figure 1, the first surge tank 101 is provided with barometer 200.The first surge tank shown by barometer 200
Air pressure in 101 controls to adjust first throttle valve 105.The measured value of barometer 200 is also the injection of batch (-type) gas nozzle 100
Back pressure, can be by changing injection back pressure, and measure different back pressures influences on course of injection.
Admission line 103 is high-voltage-stable source of the gas input channel.Pressure-stabilized air source is used, primarily to reducing nozzle air inlet
Mouth and the pressure differential of gas outlet, it is ensured that the accuracy of final flow rate measured value.
As shown in figure 1, source of the gas input channel is provided with gas ejector, gas ejector is provided with batch (-type) gas nozzle
100.Gas ejector is used in the present embodiment.
The bending of source of the gas input channel is in " L " font, and source of the gas input channel is connected with the first air inlet.Source of the gas input channel is adopted
With " L " type, gas injection is before the first surge tank 101 is entered first through source of the gas input channel, the roundabout shape of source of the gas input channel
Shape can realize the first time buffering of gas injection.
As depicted in figs. 1 and 2, the first air inlet is arranged at the bottom of the first surge tank 101, and the second gas outlet is arranged at
The top of two surge tanks 102.Gas density is less than air, and gas injection enters through the first air inlet, is flowed out through the second gas outlet,
Meet the flowing trend of gas, percussion of the gas to the first surge tank 101 and the tank skin of the second surge tank 102 can be reduced.
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, it would however also be possible to employ vacuum 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 is connected with batch (-type) gas nozzle 100.
High-voltage-stable gas input device inputs high-voltage-stable gas, then by batch (-type) gas nozzle 100 spurt into
In feed channel 103, most flowed out afterwards through mass flowmenter 108, the accurate survey to batch (-type) nozzle sprays gas flow can be realized
Amount.
Preferred embodiment of the present utility model is the foregoing is only, the utility model is not limited to, for this
For the technical staff in field, the utility model can have various modifications and variations.It is all it is of the present utility model spirit and principle
Within, any modifications, equivalent substitutions and improvements made etc. should be included within protection domain of the present utility model.
Claims (10)
1. a kind of gas interrupted injection measuring device, it is characterised in that including batch (-type) gas nozzle, the first surge tank and
Two surge tanks, first surge tank is provided with the first air inlet and the first gas outlet, and second surge tank is provided with second
Air inlet and the second gas outlet, the batch (-type) gas nozzle are connected by admission line with first air inlet, and described
Connected between one gas outlet and second air inlet by connecting pipe, the connecting pipe is provided with first throttle valve, institute
State the second gas outlet and be provided with outlet pipe, the outlet pipe is disposed with second throttle and mass flowmenter, described
Second throttle is arranged between second gas outlet and the mass flowmenter.
2. gas interrupted injection measuring device according to claim 1, it is characterised in that the connecting pipe includes slow
Washing pipe road, the second throttle is arranged at the buffering pipe.
3. gas interrupted injection measuring device according to claim 2, it is characterised in that the buffering pipe is in " U "
Font, the two ends of the buffering pipe are connected with the connecting pipe respectively.
4. gas interrupted injection measuring device according to claim 1, it is characterised in that the outlet pipe is provided with
Activated charcoal strainer.
5. gas interrupted injection measuring device according to claim 1, it is characterised in that the admission line is high pressure
Stable source of the gas input channel.
6. gas interrupted injection measuring device according to claim 5, it is characterised in that the source of the gas input channel is set
Gas ejector is equipped with, the gas ejector is provided with the batch (-type) gas nozzle.
7. gas interrupted injection measuring device according to claim 5, it is characterised in that the source of the gas input channel is curved
Folding is in " L " font, and the source of the gas input channel is connected with first air inlet.
8. gas interrupted injection measuring device according to claim 7, it is characterised in that first air inlet is set
In the bottom of first surge tank, second gas outlet is arranged at the top of second surge tank.
9. gas interrupted injection measuring device according to claim 1, it is characterised in that first surge tank and institute
State the second surge tank respectively vacuum tank.
10. a kind of gas interrupted injection system for measuring quantity, it is characterised in that will including high-voltage-stable gas input device and right
Seek the gas interrupted injection measuring device described in any one in 1 to 9, the high-voltage-stable gas input device and it is described between
Formula of having a rest gas nozzle is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406385.2U CN206339274U (en) | 2016-12-20 | 2016-12-20 | Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621406385.2U CN206339274U (en) | 2016-12-20 | 2016-12-20 | Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206339274U true CN206339274U (en) | 2017-07-18 |
Family
ID=59302141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621406385.2U Expired - Fee Related CN206339274U (en) | 2016-12-20 | 2016-12-20 | Gas interrupted injection measuring device and gas interrupted injection system for measuring quantity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206339274U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271175A (en) * | 2017-07-24 | 2017-10-20 | 吉林省众鑫汽车装备有限公司 | A kind of detection means and detection method of ammonia metering valve |
| CN110220696A (en) * | 2019-07-15 | 2019-09-10 | 中船动力研究院有限公司 | A kind of gas valve the amount of injection measuring test-bed |
-
2016
- 2016-12-20 CN CN201621406385.2U patent/CN206339274U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271175A (en) * | 2017-07-24 | 2017-10-20 | 吉林省众鑫汽车装备有限公司 | A kind of detection means and detection method of ammonia metering valve |
| CN110220696A (en) * | 2019-07-15 | 2019-09-10 | 中船动力研究院有限公司 | A kind of gas valve the amount of injection measuring test-bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170718 Termination date: 20181220 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |