CN206470285U - Measure the device of pipeline gas flow rate - Google Patents
Measure the device of pipeline gas flow rate Download PDFInfo
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- CN206470285U CN206470285U CN201720104745.1U CN201720104745U CN206470285U CN 206470285 U CN206470285 U CN 206470285U CN 201720104745 U CN201720104745 U CN 201720104745U CN 206470285 U CN206470285 U CN 206470285U
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- pipeline
- temperature
- temperature sensor
- supply unit
- rod
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Abstract
The utility model discloses a kind of device for measuring pipeline gas flow rate, including the first pipeline, supply unit and temperature analysis apparatus, the tube wall of first pipeline is provided with heating rod, cooling rod, the first temperature sensor and second temperature sensor, heating rod and cooling rod are electrically connected with supply unit, first temperature sensor and second temperature sensor are electrically connected with temperature analysis apparatus, temperature analysis apparatus and supply unit electrical connection.The utility model is capable of detecting when the flow velocity of gas in pipelines.Heating rod or cooling rod can be selected according to different types of gas in pipeline, the temperature in heating rod or cooling rod downstream is then gathered by the first temperature sensor and second temperature sensor, the flow velocity of gas in pipelines is then calculated by temperature analysis apparatus.
Description
Technical field
The utility model is related to gas flow rate fields of measurement, more particularly to a kind of device for measuring pipeline gas flow rate.
Background technology
In the prior art, conventional pipeline gas flow velocity or the main abacus flowmeter of the instrument of flow measurement, vortex street stream
Gauge, turbine flowmeter etc., though these measuring instruments are widely used, have respective shortcoming and application limitation, at present specially
Door accurately measures flow velocity for pipeline progress short distance and the device of flow is seldom.For most of pipeline fluids, the side of air-flow
To it has been determined that accordingly, it would be desirable to researching and developing a kind of gas in pipelines flow rate measuring device.
Utility model content
The purpose of this utility model is that, there is provided a kind of device for measuring pipeline gas flow rate, pipe can be accurately measured
Road air-flow velocity.
In order to solve the above technical problems, the utility model is adopted the following technical scheme that：
Because temperature sensor is compared to gas sensor fast response time, measurement error is small, therefore, it can utilize pipeline
It is interior to carry out the measurement that gas flow temperature fluctuating change carries out flow velocity.Based on this, the utility model provides a kind of measurement pipeline gas
The device of flow velocity, including the first pipeline, supply unit and temperature analysis apparatus, the tube wall of the first pipeline is provided with heating rod, system
Cold rod, the first temperature sensor and second temperature sensor, heating rod and cooling rod are electrically connected with supply unit, and the first temperature is passed
Sensor and second temperature sensor are electrically connected with temperature analysis apparatus, temperature analysis apparatus and supply unit electrical connection.Heating rod
For heating, the temperature of gas in the first pipeline of lifting.Cooling rod is used to cool, the temperature of gas in the first pipeline of reduction, its
Low-temperature receiver can select cold water, can be from the cold air of air-conditioning.
In the device of foregoing measurement pipeline gas flow rate, first switch, refrigeration are provided between heating rod and supply unit
Second switch is provided between rod and supply unit, provided with the 3rd switch between supply unit and temperature analysis apparatus.
In the device of foregoing measurement pipeline gas flow rate, heating rod, cooling rod, the first temperature sensor and second temperature
Sensor by rubber seal be arranged on the first pipeline on, rubber seal be provided with fixing hole, heating rod, cooling rod,
First temperature sensor and second temperature sensor are respectively positioned in the fixing hole, and rubber seal is by sealed bottom ring and top
Seal cap is constituted.
In the device of foregoing measurement pipeline gas flow rate, in addition to the second pipeline, the two ends of the first pipeline are and second
Pipeline connection, the two ends of the first pipeline are respectively equipped with the first valve and the second valve, the second pipeline and the parallel connection of the first pipeline
Pipeline section is provided with the 3rd valve.It is preferred that, first pipeline is into U-shaped.Normal operation is the first pipeline of closing, when needs test the speed
When close the second pipeline and open the first pipeline.
Compared with prior art, the utility model is capable of detecting when the flow velocity of gas in pipelines.Can according in pipeline not
The gas of same type selects heating rod or cooling rod, is then added by the first temperature sensor and second temperature sensor collection
Hot pin or the temperature in cooling rod downstream, then calculate the flow velocity of gas in pipelines by temperature analysis apparatus.
Brief description of the drawings
Fig. 1 is a kind of structural representation of embodiment of the present utility model；
Fig. 2 is a kind of structural representation of embodiment of rubber seal.
Reference：The valves of 1- first, 2- heating rods, 3- first switches, 4- supply units, 5- the 3rd is switched, 6- second
Switch, 7- cooling rods, 8- temperature analysis apparatus, the temperature sensors of 9- first, 10- second temperature sensors, 11- rubber seals
Circle, the pipelines of 12- first, the valves of 13- second, the valves of 14- the 3rd, the pipelines of 15- second, 16- sealed bottom rings, 17- fixing holes,
Seal cap at the top of 18-.
The utility model is further described with reference to the accompanying drawings and detailed description.
Embodiment
Embodiment 1 of the present utility model：As shown in figure 1, a kind of device for measuring pipeline gas flow rate, including the first pipeline
12nd, supply unit 4 and temperature analysis apparatus 8, the tube wall of the first pipeline 12 are passed provided with heating rod 2, cooling rod 7, the first temperature
Sensor 9 and second temperature sensor 10, heating rod 2 and cooling rod 7 are electrically connected with supply unit 4, the first temperature sensor 9 and
Two temperature sensors 10 are electrically connected with temperature analysis apparatus 8, and temperature analysis apparatus 8 and supply unit 4 are electrically connected.
First switch 3 is provided between heating rod 2 and supply unit 4, is opened between cooling rod 7 and supply unit 4 provided with second
6 are closed, provided with the 3rd switch 5 between supply unit 4 and temperature analysis apparatus 8.
Heating rod 2, cooling rod 7, the first temperature sensor 9 and second temperature sensor 10 are pacified by rubber seal 11
On the first pipeline 12, rubber seal 11 is provided with fixing hole 17, heating rod 2, cooling rod 7, the and of the first temperature sensor 9
Second temperature sensor 10 is respectively positioned in the fixing hole 17, and rubber seal 11 is by sealed bottom ring 16 and top seal cap 18
Composition.
Embodiment 2：As depicted in figs. 1 and 2, a kind of device for measuring pipeline gas flow rate, including the first pipeline 12, power supply
Device 4 and temperature analysis apparatus 8, the tube wall of the first pipeline 12 are provided with heating rod 2, cooling rod 7, the and of the first temperature sensor 9
Second temperature sensor 10, heating rod 2 and cooling rod 7 are electrically connected with supply unit 4, the first temperature sensor 9 and second temperature
Sensor 10 is electrically connected with temperature analysis apparatus 8, and temperature analysis apparatus 8 and supply unit 4 are electrically connected.Heating rod 2 and power supply dress
First switch 3 is provided between putting 4, second switch 6, supply unit 4 and temperature analysis are provided between cooling rod 7 and supply unit 4
Provided with the 3rd switch 5 between device 8.
Heating rod 2, cooling rod 7, the first temperature sensor 9 and second temperature sensor 10 are pacified by rubber seal 11
On the first pipeline 12, rubber seal 11 is provided with fixing hole 17, heating rod 2, cooling rod 7, the and of the first temperature sensor 9
Second temperature sensor 10 is respectively positioned in the fixing hole 17, and rubber seal 11 is by sealed bottom ring 16 and top seal cap 18
Composition.
Also include the second pipeline 15, the two ends of the first pipeline 12 are connected with the second pipeline 15, the two ends of the first pipeline 12
It is respectively equipped with the first valve 1 and the second valve 13, the second pipeline 15 and the pipeline section in parallel of the first pipeline 12 is provided with the 3rd valve
Door 14.Preferably, first pipeline 12 is into U-shaped.
A kind of operation principle of embodiment of the present utility model：Operationally, the gas property of measurement needed for carrying out first
Judged, selection uses heating rod 2 or cooling rod 7, be then turned on the 3rd switch 5 to first the 9, second temperature of temperature sensor
Degree sensor 10, temperature analysis apparatus 8 are powered, and it is normally transported.Then of short duration confession is carried out to heating rod 2 or cooling rod 7
Electricity makes gas temperature in the first pipeline 12 carry out short time change (basal area of the first pipeline 12 is S), due to the effect of air-flow, two
Individual temperature sensor receives temperature level and time all differences (distance definition is L between two temperature sensors), but connects
The temperature waveform received is similar, is monitored by 8 pair of first temperature sensor 9 of temperature analysis apparatus, second temperature sensor 10
Gas temperature be acquired, temperature signal is respectively S1 (t), S2 (t), calculates the correlation function of two temperatures signal：
τ represents the time delay between two temperature sensors in formula；
R (τ) is a signal for carrying peak value.Theoretical, the time τ corresponding to peak value according to relevant information0As air-flow
Flow through the time between two sensorses.Then pipeline gas flow Q calculation formula is：
Wherein, L represents the spacing of two sensors, and S represents that conduit section is accumulated, then passes through Q and τ0Calculate
Go out flow velocity.
The beneficial effects of the utility model are as follows：The pipeline gas temperature-switching method that the utility model is provided measures the dress of flow velocity
Put, using being only to run the short time by heating source or refrigeration source, the short time changes gas flow temperature, and same absolute altitude is swum under a gas flow
Two temperature sensors are set to carry out temperature survey, whole process is not required to accurately control heating process or process of refrigerastion, temperature is passed
Sensor is also without accurate measurement gas flow temperature, because the temperature change waveform between same absolute altitude point of proximity is similar, therefore, temperature
Degree sensor only need perfect measurement measurement point temperature change waveform can, by temperature acquisition analysis system to temperature measuring data
Flow velocity can be effectively measured after carrying out relevant treatment, and then flow can be calculated.
Claims (5)
1. a kind of device for measuring pipeline gas flow rate, it is characterised in that including the first pipeline (12), supply unit (4) and temperature
Spend analytical equipment (8), the tube wall of the first pipeline (12) provided with heating rod (2), cooling rod (7), the first temperature sensor (9) and
Second temperature sensor (10), heating rod (2) and cooling rod (7) are electrically connected with supply unit (4), the first temperature sensor (9)
Electrically connected with second temperature sensor (10) with temperature analysis apparatus (8), temperature analysis apparatus (8) and supply unit (4) are electrically connected
Connect.
2. the device of measurement pipeline gas flow rate according to claim 1, it is characterised in that heating rod (2) and power supply dress
Put and first switch (3) is provided between (4), provided with second switch (6) between cooling rod (7) and supply unit (4), supply unit
(4) provided with the 3rd switch (5) between temperature analysis apparatus (8).
3. the device of measurement pipeline gas flow rate according to claim 2, it is characterised in that heating rod (2), cooling rod
(7), the first temperature sensor (9) and second temperature sensor (10) are arranged on the first pipeline by rubber seal (11)
(12) on, rubber seal (11) be provided with fixing hole (17), heating rod (2), cooling rod (7), the first temperature sensor (9) and
Second temperature sensor (10) is respectively positioned in the fixing hole (17), and rubber seal (11) is by sealed bottom ring (16) and top
Seal cap (18) is constituted.
4. the device of measurement pipeline gas flow rate according to claim 3, it is characterised in that also including the second pipeline
(15), the two ends of the first pipeline (12) are connected with the second pipeline (15), and the two ends of the first pipeline (12) are respectively equipped with the first valve
On door (1) and the second valve (13), the second pipeline (15) the 3rd valve (14) is provided with the first pipeline (12) pipeline section in parallel.
5. it is according to claim 4 measurement pipeline gas flow rate device, it is characterised in that first pipeline (12) into
U-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104745.1U CN206470285U (en) | 2017-01-23 | 2017-01-23 | Measure the device of pipeline gas flow rate |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720104745.1U CN206470285U (en) | 2017-01-23 | 2017-01-23 | Measure the device of pipeline gas flow rate |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206470285U true CN206470285U (en) | 2017-09-05 |
Family
ID=59704520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720104745.1U Active CN206470285U (en) | 2017-01-23 | 2017-01-23 | Measure the device of pipeline gas flow rate |
Country Status (1)
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| CN (1) | CN206470285U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113536631A (en) * | 2021-07-13 | 2021-10-22 | 机械工业仪器仪表综合技术经济研究所 | Method for simulating flow-induced vibration and noise numerical value of multistage pressure reduction regulating valve |
-
2017
- 2017-01-23 CN CN201720104745.1U patent/CN206470285U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113536631A (en) * | 2021-07-13 | 2021-10-22 | 机械工业仪器仪表综合技术经济研究所 | Method for simulating flow-induced vibration and noise numerical value of multistage pressure reduction regulating valve |
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