CN209416441U - A kind of gas volume measurement displacement apparatus - Google Patents
A kind of gas volume measurement displacement apparatus Download PDFInfo
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- CN209416441U CN209416441U CN201920194021.XU CN201920194021U CN209416441U CN 209416441 U CN209416441 U CN 209416441U CN 201920194021 U CN201920194021 U CN 201920194021U CN 209416441 U CN209416441 U CN 209416441U
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Abstract
The utility model relates to a kind of gas volumes to measure displacement apparatus, occasion suitable for small-flow gas cubing, it is suitable for the sealing propertytest to certain devices, the occasion of the gas buildup amount of leakage of a period of time is measured in detection especially in a high voltage state.The range of current flux meter is extremely difficult to small flow, if error can be bigger when measurement using the flowmeter of larger range.Such as the sealing performance of certain device is detected, such as certain natural gas facilities, hydrogen plant etc. have higher requirements to leakproofness.Gas piping can only be closed later by device elder generation inflating pressure at present, by detecting the air pressure change of the device, measure the amount of leakage of gas indirectly, this method error is larger, is unable to satisfy high-precision requirement.The utility model is arranged liquid storage device, measuring appliance and pipeline and valve member and gas volume is replaced into liquid volume using gas drainage principle, solves the high-acruracy survey problem of small-flow gas volume.
Description
Technical field
The utility model relates to fields of measurement more particularly to gas volume fields of measurement.
Background technique
The measurement of small-flow gas is more difficult, and the range of current flux meter is extremely difficult to small flow, if using larger
The flowmeter of range, error can be bigger when gasmetry.Also frequently encountering small flow, high-precision gas volume is tired for a long time
Product measurement demand, is unable to satisfy the market demand at present.Such as the sealing performance of certain device is detected, it at present can only be by dress
Inflating pressure is set, gas piping is closed, by detecting the air pressure change of the device, measures the amount of leakage of gas, this side indirectly
Method error is larger, is unable to satisfy requirement, especially detects to sealing requirements higher device, for example, using the equipment of natural gas,
Hydrogen plant etc., has higher requirements to leakproofness.
Summary of the invention
In view of the above requirements, the device of the utility model is arranged when measuring small-flow gas cumulative volume by gas
The principle of liquid out will measure gas volume, be replaced into the volume of liquid, create condition for the volume of precise measurement liquid,
Solves the high-acruracy survey problem of small-flow gas cumulative volume.
To achieve the goals above, the gas volume measurement displacement apparatus of the utility model includes liquid storage device 1, measuring appliance 2；
The liquid storage device 1 is provided with measurement liquid and exports 4, inlet 11, air inlet 12, liquid storage device communication port 13；The measurement liquid outlet 4
The lower part of liquid storage device 1 is set, and the top of liquid storage device 1 is arranged in liquid storage device communication port 13 and air inlet 12；The liquid storage device 1 is also
The liquid feed valve 32 of intake valve 33, connection inlet 11 provided with connection air inlet 12；The liquid storage device 1 is also set up at an upper portion thereof
Exhaust valve 38.
The measuring appliance 2 is provided with measurement liquid entrance 5, measurement liquid outlet 14, measuring appliance communication port 15, gas outlet 16；
The top of measuring appliance 2 is arranged in the measuring appliance communication port 15, is connected by communicating valve 30 with liquid storage device communication port 13；It is described
The top of measuring appliance 2 is arranged in gas outlet 16；The top of measuring appliance 2 is arranged in the measurement liquid entrance 5；The air inlet 12,
Liquid storage device communication port 13, measuring appliance communication port 15 and gas outlet 16 are above the position of measurement liquid entrance 5 in vertical height；Institute
Measurement liquid entrance 5 is stated to be connected with measurement liquid outlet 4 by pipeline；The measuring appliance 2 is provided with connection measurement liquid outlet 14
Dump valve 34, connect gas outlet 16 air outlet valve 35.
Further, on the one hand, the present apparatus is also provided with perfusion tube 6, and perfusion tube 6 is arranged except liquid storage device 1, the survey
Amount liquid outlet 4 is arranged on the wall of liquid storage device 1, and 2mm is drawn extremely with 4 connection of measurement liquid outlet, the other end in 6 one end of perfusion tube upwards
The height of 9000mm is connected with liquid entrance 5 is measured.
Further, on the other hand, the present apparatus is also provided with perfusion tube 6；The measurement liquid outlet 4 is arranged in liquid storage device 1
Inside, perfusion tube 6 one end connection measurement liquid outlet 4；The other end of perfusion tube 6 passes through the chamber wall of liquid storage device 1, leads to storage
The outside of liquid device 1 is connected with liquid entrance 5 is measured；The position of the measurement liquid entrance 5 is higher than measurement liquid in vertical height and goes out
The position 2mm to 9000mm of mouth 4.
Above-mentioned two aspect is also set moreover, 1 lower part of liquid storage device is provided with drain line and with the tapping valve 31 that it is connected
Reservoir pressure meter 23, liquid storage device liquidometer 20, safety valve 36 are set；
The measuring appliance 2 is provided with measuring appliance liquidometer 22, measuring appliance pressure gauge 24, safety valve 37.
The utility model has the advantages that
1. the utility model is that precise measurement small-flow gas cumulative volume creates conditions.
2. measuring the fields such as the gas buildup amount of leakage of a period of time particularly suitable for the sealing propertytest to certain devices
It closes.Be particularly suitable for some pairs of gas mediums sealing requirements are higher and the inspection of sealing device that gas is under certain high pressure
It surveys.
3. present apparatus valve can using the valve automatically controlled, so that measuring operation may be implemented to automate, have compared with
Good practicability.
Detailed description of the invention
Fig. 1 indicates that gas volume of the perfusion tube except liquid storage device measures displacement apparatus；
Fig. 2 indicates that perfusion tube measures displacement apparatus by the gas volume inside liquid storage device.
Specific embodiment
A kind of gas volume measurement displacement apparatus, illustrates two kinds of specific embodiments below.
First embodiment:
As shown in Figure 1.A kind of gas gas measurement displacement apparatus, including liquid storage device 1, measuring appliance 2；The liquid storage device 1 is set
It has set measurement liquid and has exported 4, inlet 11, air inlet 12, liquid storage device communication port 13；The measurement liquid outlet 4 is arranged in liquid storage device 1
Lower part, the top of liquid storage device 1 is arranged in liquid storage device communication port 13 and air inlet 12；The liquid storage device 1 be also provided be connected into
The intake valve 33 of port 12, the liquid feed valve 32 for being connected to inlet 11；The liquid storage device 1 is also provided with exhaust valve 38 at an upper portion thereof.
The measuring appliance 2 is provided with measurement liquid entrance 5, measurement liquid outlet 14, measuring appliance communication port 15, gas outlet 16；
The top of measuring appliance 2 is arranged in the measuring appliance communication port 15, is connected by communicating valve 30 with liquid storage device communication port 13；It is described
The top of measuring appliance 2 is arranged in gas outlet 16；The top of measuring appliance 2 is arranged in the measurement liquid entrance 5；The air inlet 12,
Liquid storage device communication port 13, measuring appliance communication port 15 and gas outlet 16 are above the position of measurement liquid entrance 5 in vertical height；Institute
Measurement liquid entrance 5 is stated to be connected with measurement liquid outlet 4 by pipeline；The measuring appliance 2 is provided with connection measurement liquid outlet 14
Dump valve 34, connect gas outlet 16 air outlet valve 35.
The present apparatus is also provided with perfusion tube 6, and perfusion tube 6 is arranged except liquid storage device 1, and 4 setting of measurement liquid outlet exists
On the wall of liquid storage device 1, for 6 one end of perfusion tube with 4 connection of measurement liquid outlet, the other end draws the height of 2mm to 9000mm upwards, same to survey
Amount liquid entrance 5 is connected.
1 lower part of liquid storage device is provided with drain line and with the tapping valve 31 that it is connected, and is also provided with liquid storage device pressure
Power meter 23, liquid storage device liquidometer 20, safety valve 36.
The measuring appliance 2 is provided with measuring appliance liquidometer 22, measuring appliance pressure gauge 24, safety valve 37.
Second embodiment:
As shown in Figure 2.A kind of gas gas measurement displacement apparatus, including liquid storage device 1, measuring appliance 2；The liquid storage device 1 is set
It has set measurement liquid and has exported 4, inlet 11, air inlet 12, liquid storage device communication port 13；The measurement liquid outlet 4 is arranged in liquid storage device 1
Lower part, the top of liquid storage device 1 is arranged in liquid storage device communication port 13 and air inlet 12；The liquid storage device 1 be also provided be connected into
The intake valve 33 of port 12, the liquid feed valve 32 for being connected to inlet 11；The liquid storage device 1 is also provided with exhaust valve 38 at an upper portion thereof.
The measuring appliance 2 is provided with measurement liquid entrance 5, measurement liquid outlet 14, measuring appliance communication port 15, gas outlet 16；
The top of measuring appliance 2 is arranged in the measuring appliance communication port 15, is connected by communicating valve 30 with liquid storage device communication port 13；It is described
The top of measuring appliance 2 is arranged in gas outlet 16；The top of measuring appliance 2 is arranged in the measurement liquid entrance 5；The air inlet 12,
Liquid storage device communication port 13, measuring appliance communication port 15 and gas outlet 16 are above the position of measurement liquid entrance 5 in vertical height；Institute
Measurement liquid entrance 5 is stated to be connected with measurement liquid outlet 4 by pipeline；The measuring appliance 2 is provided with connection measurement liquid outlet 14
Dump valve 34, connect gas outlet 16 air outlet valve 35.
The present apparatus is also provided with perfusion tube 6；The inside for measuring liquid outlet 4 and liquid storage device 1 being set, the one of perfusion tube 6
End connection measurement liquid outlet 4；The other end of perfusion tube 6 passes through the chamber wall of liquid storage device 1, leads to the outside of liquid storage device 1, with measurement
Liquid entrance 5 is connected；The position of the measurement liquid entrance 5 is higher than the position 2mm of measurement liquid outlet 4 extremely in vertical height
9000mm。
1 lower part of liquid storage device is provided with drain line and with the tapping valve 31 that it is connected, and is also provided with liquid storage device pressure
Power meter 23, liquid storage device liquidometer 20, safety valve 36；
The measuring appliance 2 is provided with measuring appliance liquidometer 22, measuring appliance pressure gauge 24, safety valve 37.
Explanation detects a certain device for the detection method of the air-tightness of air using the present apparatus below.It is generally required
For, in the stipulated time, it is specified that pressure under, air amount of leakage must be within the scope of defined.Carry out the measurement of gas volume
Method, above-mentioned two mode are suitable for.It should be noted that the test pressure of sealing device to be measured, it is necessary to be less than liquid storage device 1 and measurement
The design pressure of device 2.Pressure gauge 23 and 24 is used for the pressure of real-time detection container, safety valve 36 and safety valve 37 to be held to ensure
The safety of device can avoid the occurrence of superpressure situation.Specific measuring process is as follows:
1. the safe placement of device.Close tapping valve 31, liquid feed valve 32, intake valve 33, open dump valve 34, communicating valve 30,
Air outlet valve 35, exhaust valve 38.Air outlet valve 35 is connected with the pipeline of test system, and intake valve 33 is connected with the gas piping of test
It connects, liquid feed valve 32 is connected to water supply loop.
It,, also can be from when water level, which is increased to, can flow out from measurement liquid entrance 5 to 1 water storage of liquid storage device 2. open liquid feed valve 32
Dump valve 34 is discharged, and closes liquid feed valve 32 at this time, waits, until dump valve 34 is discharged without water, illustrates that measuring appliance 2 has been clapped
Sky closes dump valve 34.
3. all outlet ports pipeline of test system is closed, air outlet valve 35 is opened, closes exhaust valve 38.Air inlet is opened at a slow speed
Valve 33.By test system and two reservoirs, it is in measurement pressure.
4. closing communicating valve 30, measurement starts, and starts timing.
5. pressure can reduce when test system has air leakage, the pressure for forming liquid storage device 1 is greater than the pressure of measuring appliance 2
The water of liquid storage device 1 can be discharged into measuring appliance 2 from perfusion tube 6 by power.
6. between when measuring then, reading the pressure value p1 of measuring appliance pressure gauge 24, intake valve 33 is closed, first the company of opening
Port valve 30, it is rear to open exhaust valve 38.
7. opening dump valve 34, with the volume v1 of the water of measurement container precise measurement discharge, this volume is exactly under p1 pressure
The volume of the air of test system leakage can go out the leakage of standard atmospheric pressure p0 according to ideal gas equation with approximate calculation
Air volume v0:v0=v1p1/p0.
For the drained volume of more accurate measurement, it is proposed that use electronic scale, by so-called weight be scaled volume into
Row calculates, and can accurately calculate test system under the pressure of p1, the volume of air of a period of time leakage.
Claims (4)
1. a kind of gas volume measures displacement apparatus, including liquid storage device (1), measuring appliance (2)；It is characterized in that the liquid storage device (1)
(4), inlet (11), air inlet (12), liquid storage device communication port (13) are exported provided with measurement liquid；The measurement liquid exports (4)
Lower part in liquid storage device (1), liquid storage device communication port (13) and air inlet (12) setting are set on the top of liquid storage device (1)；It is described
Liquid storage device (1) is also provided with the intake valve (33) of connection air inlet (12), is connected to the liquid feed valve (32) of inlet (11)；The storage
Liquid device (1) is also provided with exhaust valve (38) at an upper portion thereof；
The measuring appliance (2) is provided with measurement liquid entrance (5), measurement liquid outlet (14), measuring appliance communication port (15), gas outlet
(16)；The measuring appliance communication port (15) is arranged on the top of measuring appliance (2), by communicating valve (30) with liquid storage device communication port
(13) it is connected；Top of gas outlet (16) setting in measuring appliance (2)；The measurement liquid entrance (5) is arranged in measuring appliance
(2) top；The air inlet (12), liquid storage device communication port (13), measuring appliance communication port (15) and gas outlet (16) are vertical
The position of measurement liquid entrance (5) is above in height；The measurement liquid entrance (5) is connected with measurement liquid outlet (4) by pipeline
It is logical；The measuring appliance (2) is provided with the dump valve (34) of connection measurement liquid outlet (14), connects the air outlet valve of gas outlet (16)
(35)。
2. gas volume according to claim 1 measures displacement apparatus, characterized in that the present apparatus is also provided with perfusion tube
(6), perfusion tube (6) is arranged except liquid storage device (1), and the measurement liquid outlet (4) is arranged on the wall of liquid storage device (1), infusion
Same measurement liquid outlet (4) connection in one end of (6) is managed, the other end draws the height of 2mm to 9000mm upwards, with measurement liquid entrance (5)
It is connected.
3. gas volume according to claim 1 measures displacement apparatus, characterized in that the present apparatus is also provided with perfusion tube
(6)；Measurement liquid outlet (4) setting is in the inside of liquid storage device (1), one end connection measurement liquid outlet (4) of perfusion tube (6)；
The other end of perfusion tube (6) passes through the chamber wall of liquid storage device (1), leads to the outside of liquid storage device (1), with measurement liquid entrance (5) phase
Connection；The position of measurement liquid entrance (5) is higher than the position 2mm to 9000mm of measurement liquid outlet (4) in vertical height.
4. measuring displacement apparatus according to claim 2 or gas volume as claimed in claim 3, characterized in that the liquid storage
The tapping valve (31) that device (1) lower part is provided with drain line and is connected with it, is also provided with reservoir pressure meter (23), liquid storage
Device liquidometer (20), safety valve (36)；
The measuring appliance (2) is provided with measuring appliance liquidometer (22), measuring appliance pressure gauge (24) and safety valve (37).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194021.XU CN209416441U (en) | 2019-02-13 | 2019-02-13 | A kind of gas volume measurement displacement apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920194021.XU CN209416441U (en) | 2019-02-13 | 2019-02-13 | A kind of gas volume measurement displacement apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209416441U true CN209416441U (en) | 2019-09-20 |
Family
ID=67944786
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920194021.XU Active CN209416441U (en) | 2019-02-13 | 2019-02-13 | A kind of gas volume measurement displacement apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209416441U (en) |
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2019
- 2019-02-13 CN CN201920194021.XU patent/CN209416441U/en active Active
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