CN208621988U - A kind of high/low temperature gas flow standard device - Google Patents
A kind of high/low temperature gas flow standard device Download PDFInfo
- Publication number
- CN208621988U CN208621988U CN201821391958.8U CN201821391958U CN208621988U CN 208621988 U CN208621988 U CN 208621988U CN 201821391958 U CN201821391958 U CN 201821391958U CN 208621988 U CN208621988 U CN 208621988U
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- Prior art keywords
- checklist
- temperature
- low temperature
- gas flow
- standard
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Abstract
A kind of high/low temperature gas flow standard device.It includes checklist, checklist platform position, standard scale, gas source and the flow regulator for placing checklist, it connects and composes pilot passageway by connecting pipe, the standard scale and the checklist are connect with temperature sensor, pressure sensor respectively, the checklist and checklist platform position are arranged in a temperature cabin system, and temperature in cabin can be adjusted in the temperature cabin system.The utility model can carry out the different temperatures such as high temperature, low temperature to flowmeter according to flowmeter actual work temperature and test, and verify the Acclimation temperature performance of flowmeter.
Description
Technical field
The utility model relates to a kind of standard set-up, in particular to a kind of high/low temperature gas flow standard device.
Background technique
Currently, well known gas flow standard device is by gas source, standard scale, flow control device, checklist platform position, temperature
Transmitter, pressure transmitter and connecting pipe couple.When work, checklist is mounted on checklist platform position, and gas source passes through stream
Amount regulating mechanism traffic requirement when reaching calibrating, by detect respectively the operating temperature of checklist and standard scale, operating pressure and
Flow is converted to same state down-off by equation of gaseous state and is compared calculating, obtains the error of indication and again of tested flow-meter
Renaturation.
But current gas flow standard device only works at ambient temperature, and checklist cannot be judged in low temperature, height
Metering performance index at a temperature of the different operatings such as temperature.
Utility model content
It is not able to verify that checklist in different operating temperature to solve existing gas flow standard device in background technique
The problem of metering performance, the utility model provide a kind of gas flow standard device, which can not only examine at normal temperatures and pressures
Fixed or proving flowmeter, and the checklist environment that can provide different operating temperature is examined and determine or is demarcated.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of high/low temperature gas flow standard dress
It sets, including checklist, the checklist platform position for placing checklist, standard scale, gas source, flow regulator, passes through connecting pipe
Pilot passageway is connected and composed, the standard scale and the checklist are connect with temperature sensor, pressure sensor respectively, described
Checklist platform position is connect with the standard scale, and the standard scale is connect with the flow regulator, the flow regulator
It is connect with gas source, the checklist and checklist platform position are arranged in a temperature cabin system, and the temperature cabin system can be to cabin
Interior temperature is adjusted.
It is -30 DEG C~60 DEG C that temperature cabin system, which can adjust temperature range in cabin,.
Heat exchanger is additionally provided between the temperature cabin system and the standard scale.
Positive pressure or negative pressure form can be used in the gas source.
Gas flow in the pilot passageway is one-way or bi-directional flow direction.
The checklist platform bit quantity is 1 or more.
The standard scale quantity is 1 or more.
The beneficial effects of the utility model are: high temperature, low can be carried out to flowmeter according to flowmeter actual work temperature
The different temperatures such as temperature are tested, and the Acclimation temperature performance of flowmeter is verified.
Detailed description of the invention
Fig. 1 is the working principle diagram of the utility model embodiment.
Wherein, 1. temperature cabin system, 2. checklist platform positions, 3. pressure transmitters, 4. temperature transmitters, 5. connecting pipes
(several), 6. heat exchangers, 7. standard scales, 8. pressure transmitters, 9. temperature transmitters, 10. flow regulators, 11. gas sources,
12. computer system.
Specific embodiment
The utility model embodiment is described further with reference to the accompanying drawing:
In the utility model embodiment, a kind of high/low temperature gas flow standard device including checklist, places checklist
Checklist platform position, standard scale, gas source, flow regulator, connect and compose pilot passageway by connecting pipe.
The standard scale and the checklist are connect with temperature sensor, pressure sensor respectively, the checklist platform
Position is connect with the standard scale, and the standard scale is connect with the flow regulator, and the flow regulator and gas source connect
Connect, the checklist and checklist platform position are arranged in a temperature cabin system, the temperature cabin system can to temperature in cabin into
Row is adjusted.
It is -30 DEG C~60 DEG C that temperature cabin system, which can adjust temperature range in cabin, has the function of subzero low-temperature test and height
Warm test function.
Heat exchanger is equipped between the temperature cabin system and the standard scale.
Positive pressure or negative pressure form can be used in gas source.Gas flow in pilot passageway is two-way flow direction.It can be according to reality
The condition of testing is adjusted flexibly.
The quantity of checklist platform position and standard scale is not limited to 1, can adjust according to actual needs.
As shown in Figure 1, placing checklist platform position 2, pressure transmitter 3, temperature transmitter 4, connection in temperature cabin system 1
Pipeline 5, connecting pipe 5 are pierced by temperature cabin system and connect with heat exchanger 6, heat exchanger 6 and standard scale 7, flow regulator
10, gas source 11 is sequentially connected, and pressure transmitter 8, temperature transmitter 9 are equipped at standard scale 7.Computer system 12 is removed with above-mentioned
It is connected outside pipeline 5, heat exchanger 6.
When work, computer system 12 acquires checklist flow signal, pressure transmitter 3, temperature on checklist platform position 2
Transmitter 4, the flow signal of standard scale 7, pressure transmitter 8, temperature transmitter 9 signal, and control adjustment temperature cabin system 1
Temperature, control flow regulator carry out flow and adjust to flow appropriate.Air-flow after a certain period of time, is counted through above-mentioned pilot passageway
Calculation machine system 12 is calculated the error of indication and repeatability of checklist by mathematical model appropriate.
The utility model can carry out the not equality of temperature such as high temperature, sub-zero temperature to flowmeter according to flowmeter actual work temperature
Degree is tested, and adjusting range is wide, and the function of verifying the Acclimation temperature performance of flowmeter is more perfect.
Every technical staff's notice: although the utility model is described according to above-mentioned specific embodiment, this
The invention thought of utility model is not limited to that utility model, and any repacking with inventive concept will all be included in this specially
In sharp scope of patent protection.
Claims (7)
1. a kind of high/low temperature gas flow standard device, including checklist, the checklist platform position (2) for placing checklist, standard scale
(7), gas source (11), flow regulator (10) connect and compose pilot passageway by connecting pipe (5), the standard scale and
The checklist is connect with temperature sensor, pressure sensor respectively, it is characterised in that: checklist platform position (2) and institute
Standard scale (7) connection is stated, the standard scale (7) connect with the flow regulator (10), the flow regulator (10)
It is connect with gas source (11), the checklist and the setting of checklist platform position are in a temperature cabin system (1), the temperature cabin system
(1) temperature in cabin can be adjusted.
2. high/low temperature gas flow standard device according to claim 1, it is characterised in that: temperature cabin system can adjust cabin
Interior temperature range is -30 DEG C~60 DEG C.
3. high/low temperature gas flow standard device according to claim 1, it is characterised in that: the temperature cabin system (1)
Heat exchanger (6) are additionally provided between the standard scale (7).
4. high/low temperature gas flow standard device according to claim 1, it is characterised in that: the gas source (11) can be used
Positive pressure or negative pressure form.
5. high/low temperature gas flow standard device according to claim 1, it is characterised in that: the gas in the pilot passageway
Body flow direction is one-way or bi-directional flow direction.
6. high/low temperature gas flow standard device according to claim 1, it is characterised in that: checklist platform position (2)
Quantity is 1 or more.
7. high/low temperature gas flow standard device according to claim 1, it is characterised in that: standard scale (7) quantity
It is 1 or more.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391958.8U CN208621988U (en) | 2018-08-28 | 2018-08-28 | A kind of high/low temperature gas flow standard device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821391958.8U CN208621988U (en) | 2018-08-28 | 2018-08-28 | A kind of high/low temperature gas flow standard device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208621988U true CN208621988U (en) | 2019-03-19 |
Family
ID=65716241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821391958.8U Active CN208621988U (en) | 2018-08-28 | 2018-08-28 | A kind of high/low temperature gas flow standard device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208621988U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220574A (en) * | 2019-06-26 | 2019-09-10 | 东华理工大学 | Gas flow calibration system, method and device |
| CN111399573B (en) * | 2020-04-02 | 2021-07-23 | 中国航空工业集团公司北京长城计量测试技术研究所 | Temperature control cavity pressure measuring and controlling device |
-
2018
- 2018-08-28 CN CN201821391958.8U patent/CN208621988U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110220574A (en) * | 2019-06-26 | 2019-09-10 | 东华理工大学 | Gas flow calibration system, method and device |
| CN111399573B (en) * | 2020-04-02 | 2021-07-23 | 中国航空工业集团公司北京长城计量测试技术研究所 | Temperature control cavity pressure measuring and controlling device |
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