CN207570645U - The equipment that a kind of flow is weighed - Google Patents
The equipment that a kind of flow is weighed Download PDFInfo
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- CN207570645U CN207570645U CN201721701753.0U CN201721701753U CN207570645U CN 207570645 U CN207570645 U CN 207570645U CN 201721701753 U CN201721701753 U CN 201721701753U CN 207570645 U CN207570645 U CN 207570645U
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- weighing device
- weighing
- packaging system
- supply pipe
- pressure inlet
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Abstract
The purpose of this utility model is to provide the equipment that a kind of flow is weighed, and the equipment includes：Packaging system, pressure inlet, weighing device, weighing sensor and supply pipe, wherein, the weighing device is placed in the weighing sensor in the packaging system；The weighing device is placed on the weighing sensor, and the weighing sensor is fixed on the inner wall of the packaging system；The pressure inlet is placed in the top of the weighing device, for distributing pressurization gas into the packaging system and in the weighing device；The first end of the supply pipe is fixed on the top of the packaging system, and second end is inserted into the weighing device；It is directly mechanically connected so as to avoid supply pipe with weighing device, the external restraining force for being difficult to overcome and flow of liquid medium brought go out the factors such as the dynamic effects power of generation, and then improve the accuracy of flow weighing measurement, realize high-precision measurement.
Description
Technical field
The utility model is related to the equipment that field of fluid mechanics more particularly to a kind of flow are weighed.
Background technology
With the fast development of space technology, novel strategy liquid rocket attitude control motor ground heat run flow claims
Load measurement device, for small to several grams per second of tiny flow quantity of attitude control liquid-propellant rocket engine propellant, measurement accuracy will be direct
The thrust of rocket engine is influenced, the final rocket that influences is in the precise trajectory of too airflight and guided missile attack precision, it is impossible to accurate
The proper mass of true reflection engine causes posture adjustment failure or deviates predetermined flight track.Therefore, to liquid rocket posture control
The development of engine processed, it is proposed that the strict demand of " high, essence, standard ".At present, existing weighing measurement device is will directly to promote
Agent container pressure piping and propellant export pipeline are mechanically connected, and bring the external restraining force for being difficult to overcome, Yi Jizeng
The factors such as the dynamic effects power that body of calming the anger flows and propellant outflow generates, cause measurement accuracy inaccurate.
Utility model content
The purpose of this utility model is to provide the equipment that a kind of flow is weighed, with solve weighing container pressure piping connection and
Propellant export pipeline connects, the flowing of the external restraining force for being difficult to overcome and pressurization gas and propellant outflow production brought
The factors such as raw dynamic effects power, the problem of causing the precision of weighing measurement inaccurate.
In order to solve the above technical problems, one side according to the present utility model, provides the equipment that a kind of flow is weighed, institute
Equipment is stated to include：Packaging system, weighing device, pressure inlet, supply pipe and weighing sensor, wherein,
The weighing device is placed in the weighing sensor in the packaging system；
The weighing device is placed on the weighing sensor, and the weighing sensor is fixed on the interior of the packaging system
Wall；
The pressure inlet is placed in the top of the weighing device, for into the packaging system and in the weighing device
Distribute pressurization gas；
The first end of the supply pipe is fixed on the top of the packaging system, and second end is inserted into the weighing device.
Further, the second end of the supply pipe and the vertical range of the weighing device include 0~10mm.
Further, the diameter of the supply pipe includes 0~30mm.
Further, the supply pipe is for adding in liquid medium into the weighing device and by the dress of weighing
Liquid medium in putting is supplied to outside the packaging system.
Further, the pressurization gas of the pressure inlet distribution is insoluble in the liquid medium in the weighing device.
Further, the volume of the pressurization gas of the pressure inlet distribution and the liquid medium volume in the weighing device
The ratio between include 1~20.
Further, the equipment includes：Measure output line,
Wherein, the measurement output line is connect with the weighing sensor, exports the data that the weighing sensor measures.
Compared with prior art, the utility model provides the equipment that a kind of flow is weighed, and the equipment includes：Encapsulation dress
It puts, pressure inlet, weighing device, weighing sensor and supply pipe, wherein, the weighing device is placed in institute with the weighing sensor
It states in packaging system；The weighing device is placed on the weighing sensor, and the weighing sensor is fixed on the encapsulation dress
The inner wall put；The pressure inlet is placed in the top of the weighing device, for into the packaging system and the weighing device
Interior distribution pressurization gas；The first end of the supply pipe is fixed on the top of the packaging system, and second end is inserted into the title
Refitting is put；Directly be mechanically connected so as to avoid supply pipe with weighing device, the external restraining force for being difficult to overcome brought and
Flow of liquid medium goes out the factors such as the dynamic effects power of generation, and then improves the accuracy of flow weighing measurement, realizes high-precision
Measurement.
Description of the drawings
By reading the detailed description made to non-limiting example made with reference to the following drawings, the utility model
Other features, objects and advantages will become more apparent upon：
Fig. 1 shows the structure diagram of equipment that flow is weighed in one embodiment of the utility model；
Fig. 2 shows the connection enlarged diagrams of the pressure pipeline at I in Fig. 1；
Fig. 3 shows the bottom enlarged diagram of propellant feed pipes at II in Fig. 1.
The same or similar reference numeral represents the same or similar component in attached drawing.
Specific embodiment
The utility model is described in further detail below in conjunction with the accompanying drawings.
In one embodiment of the utility model, the equipment that a kind of flow is weighed is provided, the equipment includes：Packaging system
1st, pressure inlet 2, weighing device 3, weighing sensor 4 and supply pipe 5, wherein, the weighing device 3 and the weighing sensor 4
It is placed in the packaging system 1；The weighing device 3 is placed on the weighing sensor 4, and the weighing sensor 4 is fixed on
The inner wall of the packaging system 1；The pressure inlet 2 is placed in the top of the weighing device 3, for into the packaging system 1
And distribution pressurization gas in the weighing device 3；The first end of the supply pipe 5 is fixed on the top of the packaging system 1, the
Two ends are inserted into the weighing device 3.So that single space in packaging system becomes more spaces, packaging system, which no longer has, weighs
Effect, individually separates with weighing device.In a particular embodiment, to the liquid medium in weighing device 3 is supplied to outside,
It needs to increase gas, the top of weighing device 3 is not closed, and is the device of upward opening, is facilitated and is received the supercharging that pressure inlet 2 distributes
Gas causes to squeeze to the liquid in weighing device 3, weighing device 3 in it liquid medium need it is high-precision measurement and
The amount supplied to external liquid medium can be calculated.Wherein, the supply pipe 5 is used to add in into the weighing device 3
Liquid medium and by the liquid medium in the weighing device 3 supplied to outside the packaging system 1.In the utility model
In one embodiment, liquid medium is added in into weighing device 3 by supply pipe 5, in order to make the liquid medium in weighing device 3
Supplied to outside, pressurization gas is needed, liquid medium is expressed to by the corresponding required device in 1 outside of packaging system by pressure
It is interior.When liquid medium is promoted weighing device 3, promoted by supply pipe 5, supply pipe 5 be inserted into weighing device 3 but with
Bottom has distance not contact, and is welded and fixed in first end and the packaging system 1 of supply pipe 5, the liquid medium in weighing device 3 leads to
The extruding of pressurization gas is crossed, the outside that packaging system 1 is reached by pressure is supplied to corresponding required device or equipment, so as to keep away
Exempt from supply pipe 5 to be directly mechanically connected with weighing device 3, the external restraining force for being difficult to overcome and flow of liquid medium brought
Go out the factors such as the dynamic effects power of generation, and then improve the accuracy of flow weighing measurement, realize high-precision measurement.At this
In one specific embodiment of utility model, for example equipment described in the utility model is liquid rocket attitude control motor ground level heat
During flow weighing measurement equipment in test run, measure more accurate of weighing device and then to calculate rocket thrust more accurate, so as to more
The accurate precision higher to strike target into planned orbit or guided missile.
In one embodiment of the utility model, it is allocated by pressure inlet 2 into packaging system 1 and weighing device 3
Gas, the volume air cushion of ullage has obtained Equilibrium filling in weighing device 3, has reached to 3 pressurization gas of weighing device
Purpose.Restraining force when pressure inlet 2 is directly mechanically connected with weighing device 3 is eliminated, improves the accuracy of flow weighing measurement.
It should be noted that the gas to achieve the purpose that the distribution of pressure inlet 2 needs institute to squeeze the liquid medium in weighing device 3
The pressurization gas of the distribution of pressure inlet 2 is stated insoluble in the liquid medium in the weighing device 3.One end of pressure inlet 2 can be fixed
At the top of packaging system 1, the other end is inserted into packaging system 1, positioned at the top of weighing device 3, so as to pass through pressure inlet 2
Gas can be distributed to the top of liquid in packaging system 1 and in weighing device 3.By the way that pressure inlet 2 is welded to encapsulation dress
Put on 1, so as to avoid because pressure inlet 2 is directly connected with the device weighed when the external restraining force for being difficult to overcome brought and
The factors such as the dynamic effects power of pressurization gas stream movable property life so that weighing device 3 is more accurate when measuring.
Further, the second end of the supply pipe and the vertical range of the weighing device include 0~10mm.In this reality
With in a novel embodiment, second end and the bottom of weighing device 3 of supply pipe 5, which do not contact, needs distance, such as 0~
10mm, in one preferred embodiment of the utility model, the distance of the second end of supply pipe 5 and the bottom of weighing device 3 is 10mm,
It can so that air pressure is more stable so that the liquid in weighing device 3 is supplied to by after the extruding of pressurization gas by supply pipe 5
It is external.In order to enable by the liquid medium in supply pipe 5 it is more stable supplied to outside, the diameter of the supply pipe includes 0
~30mm.
Further, the volume for the pressurization gas that the pressure inlet 2 distributes and the liquid medium body in the weighing device 3
The ratio between product includes 1~20.Here, pressure inlet 2 distributes to packaging system the gas body of (liquid upper including weighing device)
The ratio between product and the liquid medium volume in weighing device 3, which include 1~20, can cause there is enough gas extrusion liquid, gas
Volume is such as 20 times of liquid medium volume greatly, and the flowed fluctuation of liquid medium can be caused to stablize, and liquid medium liquid level is more steady,
So that the data that weighing device 3 measures are more accurate.Also, by suitable volume differences can pressurization gas to weighing
The pressure of device 3 is uniform, and when measurement reduces the influence of additional power so that measures more accurate.
In one embodiment of the utility model, the structure diagram for the equipment that flow as shown in Figure 1 is weighed, the equipment
Including above-mentioned packaging system 1, pressure inlet 2, weighing device 3, weighing sensor 4 and supply pipe 5,6 He of the first control valve is further included
Second control valve 7, wherein, first control valve 6 is fixedly connected with the first end of the pressure inlet 2, is flowed into for controlling
Pressurization gas in the pressure inlet 2, second control valve 7 is fixedly connected with the first end of the supply pipe 5, for controlling
The liquid medium flowed into the supply pipe 5 and the liquid medium flowed out by the supply pipe 5.Here, the first control valve
6 can add in gas to pressure inlet 3, can also control and distribute gas to container by pressure inlet 2, gas in container is put
Go out, the second control valve 7 can add in liquid medium into weighing device, can also control the outflow of liquid medium.Preferably, institute
Equipment is stated to include：Output line 8 is measured, wherein, the measurement output line 8 is connect with the weighing sensor 4, is weighed described in output
The data that sensor 4 measures.
In a particular embodiment, the pressurization gas that the pressure inlet 2 distributes includes nitrogen, 3 liquid in the weighing device
Body medium includes dinitrogen tetroxide (as shown in Figure 1).Packaging system 1 is preferably housing tank, and pressure inlet 2 is gas pressure pipeline, is claimed
It 3 be weighing container that refitting, which is put, weighing sensor 4 is electronic load cell, and supply pipe 5 is propellant fluid path efferent duct, first
Control valve 6 is pipeline and supercharger control valve, and the second control valve 7 imports and exports control valve for propellant.Liquid in weighing container 3 is situated between
When matter is dinitrogen tetroxide, rocket attitude control motor ground can be can be used for as the propellant of engine, the equipment
On the one hand heat run high-precision flow weighing measurement carries out gas boosting design, to by the propellant fuel in weighing container 3
Engine is supplied to, needs pressurization gas, and passes through the pressure elements such as pipeline, propellant extruding is reached into supply engine burning
The purpose of ground run needs the gas distributor pipe of pressure pipeline 2 being welded on housing tank 1, opens pressure charging valve 6, gas
Into in housing tank 1, at this point, the volume air cushion of ullage has obtained Equilibrium filling in weighing container 3, reach to appearance of weighing
The purpose of 3 pressurization gas of device eliminates the restraining force that pressure piping 2 is mechanically connected with weighing container 3.At I in Fig. 1
Pressure pipeline connection enlarged diagram, it can be seen that one end of pressure pipeline 2 is welded on housing tank 1, the other end carry out
Gas is distributed, pressurization gas N is uniformly distributed into housing tank 12, to the liquid N in the weighing device 3 in housing tank 12O4It carries out
It squeezes.On the other hand, Propellant Supply design is carried out, Propellant Supply pipe 5 is inserted into weighing container 3, but has distance with bottom,
In Fig. 1 as shown in Figure 3 at II propellant feed pipes bottom enlarged diagram, wherein, the bottom of propellant feed pipes 5
Can be 10mm apart from weighing container 3, so that the propellant in weighing container passes through supply line under the extruding of pressurization gas
Engine is reached, it is, of course, also possible to will be close to open several apertures on the duct wall of 5 bottom of supply line, to avoid at pipeline bottom
Influence of the vortex that portion is formed to weighing measurement；5 upper connection of supply line is welded and fixed with housing tank 1, is pushed away in weighing container 3
Into agent in the case where supercharging gas squeezes, by pressure elements such as pipelines, achieve the purpose that provide propellant to engine test.Therefore,
Restraining force can be overcome when being not connected to any pipeline for weighing container 3 and pressurization gas flows and what propellant outflow generated moves
The factors such as state influence power, weighing container 3 are connected with weighing sensor 4, by measuring signal by cable, are transferred to computer
Data acquisition processing system achievees the purpose that measure flow.The equipment weighed by flow in above-described embodiment can improve survey
Accuracy of measurement, because of the thrust that measurement accuracy will directly affect rocket engine, so as to fulfill the final rocket that improves in too airflight
Precise trajectory and guided missile attack precision, accurately reflect the proper mass of engine, it is accurate to carry out posture adjustment or carry out predetermined fly
Row track.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned exemplary embodiment, and
And in the case of the spirit or essential attributes without departing substantially from the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that by containing in the equivalent requirements of the claims is fallen
All changes in justice and range are included in the utility model.Any reference numeral in claim should not be considered as limitation
Involved claim.Furthermore, it is to be understood that one word of " comprising " is not excluded for other units or step, odd number is not excluded for plural number.Device
The multiple units or device stated in claim can also be realized by a unit or device by software or hardware.The
One, the second grade words are used to indicate names, and are not represented any particular order.
Claims (7)
1. the equipment that a kind of flow is weighed, which is characterized in that the equipment includes：Packaging system, weighing device, pressure inlet, confession
It should manage and weighing sensor, wherein,
The weighing device is placed in the weighing sensor in the packaging system；
The weighing device is placed on the weighing sensor, and the weighing sensor is fixed on the inner wall of the packaging system；
The pressure inlet is placed in the top of the weighing device, for being distributed into the packaging system and in the weighing device
Pressurization gas；
The first end of the supply pipe is fixed on the top of the packaging system, and second end is inserted into the weighing device.
2. equipment according to claim 1, which is characterized in that the second end of the supply pipe is hung down with the weighing device
Straight distance includes 0~10mm.
3. equipment according to claim 1, which is characterized in that the diameter of the supply pipe includes 0~30mm.
4. equipment according to claim 1, which is characterized in that the supply pipe is used to add in liquid into the weighing device
Body medium and by the liquid medium in the weighing device supplied to outside the packaging system.
5. equipment according to claim 4, which is characterized in that the pressurization gas of the pressure inlet distribution does not dissolve in the title
Interior liquid medium is put in refitting.
6. equipment according to claim 5, which is characterized in that the volume of the pressurization gas of pressure inlet distribution with it is described
The ratio between liquid medium volume in weighing device includes 1~20.
7. equipment according to claim 1, which is characterized in that the equipment includes：Measure output line,
Wherein, the measurement output line is connect with the weighing sensor, exports the data that the weighing sensor measures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721701753.0U CN207570645U (en) | 2017-12-08 | 2017-12-08 | The equipment that a kind of flow is weighed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721701753.0U CN207570645U (en) | 2017-12-08 | 2017-12-08 | The equipment that a kind of flow is weighed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207570645U true CN207570645U (en) | 2018-07-03 |
Family
ID=62687473
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721701753.0U Active CN207570645U (en) | 2017-12-08 | 2017-12-08 | The equipment that a kind of flow is weighed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207570645U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860446A (en) * | 2017-12-08 | 2018-03-30 | 上海悟道机电设备有限公司 | The equipment that a kind of flow is weighed |
| CN109188013A (en) * | 2018-08-27 | 2019-01-11 | 北京交通大学 | A kind of water sand mixture solid phase flow velocity real-time measurement device and method |
-
2017
- 2017-12-08 CN CN201721701753.0U patent/CN207570645U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107860446A (en) * | 2017-12-08 | 2018-03-30 | 上海悟道机电设备有限公司 | The equipment that a kind of flow is weighed |
| CN109188013A (en) * | 2018-08-27 | 2019-01-11 | 北京交通大学 | A kind of water sand mixture solid phase flow velocity real-time measurement device and method |
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