CN205388506U - Circulating high -pressure gas flow rate standard facility - Google Patents
Circulating high -pressure gas flow rate standard facility Download PDFInfo
- Publication number
- CN205388506U CN205388506U CN201620168975.XU CN201620168975U CN205388506U CN 205388506 U CN205388506 U CN 205388506U CN 201620168975 U CN201620168975 U CN 201620168975U CN 205388506 U CN205388506 U CN 205388506U
- Authority
- CN
- China
- Prior art keywords
- high pressure
- gas flow
- pressure gas
- valve
- standard device
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Measuring Volume Flow (AREA)
Abstract
The utility model discloses a circulating high -pressure gas flow rate standard facility, the device includes: high pressurized air source for provide high -pressure gas, the heat exchanger, it can carry out the heat exchange, high -pressure fan for form the air current that flows, wherein, be in the heat exchanger with there is standard flowmeter and examined the flowmeter through the pipe connection between the high -pressure fan. The utility model discloses a gas flow standard device through forming circulating high -pressure gas, can form different pressure environment, simple, convenient realization to the calibration and the detection of gas flow instrument in the high -pressure gas environment.
Description
Technical field
This utility model relates to a kind of gas flow standard device, particularly relates to a kind of circulating high pressure gas flow standard device.
Background technology
Along with economic and society development, the demand of natural gas is continued to increase, country has put into the substantial contribution construction for natural gas line, and gas flowmeter is as the vitals in natural gas line, and control and measurement for gas discharge have very important effect.It is known that flow measurement is important component part in measuring science technology.Improve measuring accuracy and measurement efficiency, for ensureing product quality, the progress that improves productivity and the technology that advances science suffer from significant role.Flow measurement for natural gas, set up the standard set-up of flow measurement, being requisite to ensure effusion meter accuracy in transmission of quantity value process, the foundation of standard set-up can improve the certainty of measurement of gas, for ensureing that the accuracy measured has very important significance.
Generally in the duct, natural gas is gases at high pressure form, and for the gas flow instrument in natural gas line, it is necessarily required to be applicable to high pressure gas environment, but at present, suitable is used for being formed the test environment of stable gases at high pressure.Accordingly, it would be desirable to set up stable high-pressure gas flow standard set-up, for the gas flow instrument in environment under high pressure is calibrated.
Summary of the invention
The utility model proposes a kind of circulating high pressure gas flow standard device, comprising: high-pressure air source, in order to provide gases at high pressure；Heat exchanger, it can carry out heat exchange；High pressure blower, is used for forming air flow；It is characterized in that: between described heat exchanger and described high pressure blower, be connected to proving flowmeter and tested effusion meter by pipeline.
Wherein, also including the first valve, described first valve is connected with described high-pressure air source.
Wherein, being provided with the three-way pipeline both coupled together between described tested effusion meter and described high pressure blower, residue one end of described three-way pipeline is connected to the second valve.
Wherein, described second valve is connected to deafener.
Wherein, described heat exchanger, high pressure blower, connected by pipeline between tested effusion meter and proving flowmeter, form the passage sealed.
Wherein, around described proving flowmeter, it is connected to the first temperature survey assembly, the first pressure measuring assemblies and very first time measurement assembly.
Wherein, around described tested effusion meter, the second temperature survey assembly, the second pressure measuring assemblies and the second measure of time assembly it are connected to.
Wherein, described first valve is connected with heat exchanger and proving flowmeter respectively by three-way pipeline.
Gas flow standard device of the present utility model, by forming circulating gases at high pressure, it is achieved that to the calibration of gas flow instrument and detection in high pressure gas environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of high-pressure gas flow standard set-up of the present utility model.
Detailed description of the invention
For the ease of understanding this utility model, below in conjunction with accompanying drawing, embodiment of the present utility model is illustrated, it will be appreciated by those skilled in the art that following explanation only to facilitate utility model is made an explanation, not as the concrete restriction to its scope.
Fig. 1 show the structural representation of high-pressure gas flow standard set-up of the present utility model.This high-pressure gas flow standard set-up includes high-pressure air source 1, in described high-pressure air source 1, there is anticyclonic gas, the air pressure of described gases at high pressure is more than at least two normal atmosphere, the pressure of these gases at high pressure is not specifically limited by this utility model, described gases at high pressure are at least the gas more than a normal atmosphere, to ensure the transmission of gas.Described high-pressure air source 1 is connected with the first valve 2, when opening the first valve 2, gases at high pressure in high-pressure air source 1 can spray from the first valve 2, described first valve 2 is connected with heat exchanger 3 and proving flowmeter 6 respectively by three-way pipeline, described heat exchanger 3 can carry out heat exchange, one end of described heat exchanger 3 is near the first valve 2, the other end of described heat exchanger 3 is connected to high pressure blower 4, described high pressure blower 4 is used for forming high pressure draught, described high pressure blower 4 is consecutively connected to tested effusion meter 5 and proving flowmeter 6 by pipeline, the first temperature survey assembly T1 it is connected to around described proving flowmeter 6, first pressure measuring assemblies P1 and the very first time measure assembly T1；The second temperature survey assembly T2, the second pressure measuring assemblies P2 and the second measure of time assembly T2 it is connected to around described tested effusion meter 5.Being provided with, between described tested effusion meter 5 and described high pressure blower 4, the three-way pipeline both coupled together, residue one end of described three-way pipeline is connected to the second valve 7, and described second valve 7 is connected to deafener 8.Connected by pipeline between described heat exchanger 3, high pressure blower 4, tested effusion meter 5 and proving flowmeter 6, the passage of sealing can be formed.
In the course of the work, open the first valve 2, inflated to whole circulating high pressure gas device by high-pressure air source 1, when in pipeline to after predetermined work pressure, closing the first valve 2；Opening high pressure blower 4, gas flow direction circulates as shown by the arrows in Figure 1；After temperature, pressure balance in described circulating high pressure gas device, start to measure, in phase same amount of time, based on mass conservation law, by identical in quality with by tested effusion meter 5 of the gaseous mass of proving flowmeter 6.By the temperature at measurement standard effusion meter 6 place, pressure and time, the temperature at tested effusion meter 5 place, pressure and time.The metering performance of tested effusion meter can be obtained, it is achieved calibration and the calibrating to tested effusion meter based on the metering performance of proving flowmeter.
By opening or closing the first valve 2 or the second valve 7, gas in pipeline outwards can be discharged by deafener 8 by opening the second valve 7, reduce the pressure in pipeline, can realize adjusting the gas pressure in circulating high pressure gas device thereby through the first valve 2 and the second valve 7, obtain the gaseous environment of different pressures, tested effusion meter is examined and determine when different pressures.
Gas flow standard device of the present utility model, by forming circulating gases at high pressure, can form different pressure environments, achieves simply and easily in high pressure gas environment the calibration of gas flow instrument and detection.
Although it is understood that this utility model discloses as above with preferred embodiment, but above-described embodiment is not limited to this utility model.For any those of ordinary skill in the art, without departing under technical solutions of the utility model ambit, all may utilize the technology contents of the disclosure above and technical solutions of the utility model are made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solutions of the utility model, according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, equivalent variations and modification, all still fall within the scope of technical solutions of the utility model protection.
Claims (8)
1. a circulating high pressure gas flow standard device, comprising: high-pressure air source, in order to provide gases at high pressure；Heat exchanger, it can carry out heat exchange；High pressure blower, is used for forming air flow；It is characterized in that: between described heat exchanger and described high pressure blower, be connected to proving flowmeter and tested effusion meter by pipeline.
2. circulating high pressure gas flow standard device as claimed in claim 1, it is characterised in that: also including the first valve, described first valve is connected with described high-pressure air source.
3. circulating high pressure gas flow standard device as claimed in claim 1, it is characterized in that: be provided with the three-way pipeline both coupled together between described tested effusion meter and described high pressure blower, residue one end of described three-way pipeline is connected to the second valve.
4. circulating high pressure gas flow standard device as claimed in claim 3, it is characterised in that: described second valve is connected to deafener.
5. circulating high pressure gas flow standard device as claimed in claim 1, it is characterised in that: described heat exchanger, high pressure blower, connect by pipeline between tested effusion meter and proving flowmeter, form the passage of sealing.
6. circulating high pressure gas flow standard device as claimed in claim 1, it is characterised in that: around described proving flowmeter, it is connected to the first temperature survey assembly, the first pressure measuring assemblies and very first time measurement assembly.
7. circulating high pressure gas flow standard device as claimed in claim 1, it is characterised in that: around described tested effusion meter, it is connected to the second temperature survey assembly, the second pressure measuring assemblies and the second measure of time assembly.
8. circulating high pressure gas flow standard device as claimed in claim 2, it is characterised in that: described first valve is connected with heat exchanger and proving flowmeter respectively by three-way pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620168975.XU CN205388506U (en) | 2016-03-04 | 2016-03-04 | Circulating high -pressure gas flow rate standard facility |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620168975.XU CN205388506U (en) | 2016-03-04 | 2016-03-04 | Circulating high -pressure gas flow rate standard facility |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388506U true CN205388506U (en) | 2016-07-20 |
Family
ID=56375792
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620168975.XU Expired - Fee Related CN205388506U (en) | 2016-03-04 | 2016-03-04 | Circulating high -pressure gas flow rate standard facility |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205388506U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225443A (en) * | 2016-12-14 | 2018-06-29 | 中国石油天然气股份有限公司 | Natural gas flow detects loop device |
| CN110849233A (en) * | 2019-11-28 | 2020-02-28 | 中国计量科学研究院 | Online measurement method for effective volume of piston cylinder of piston type gas flow standard device |
| CN111854893A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter verification loop system and gas temperature control method thereof |
-
2016
- 2016-03-04 CN CN201620168975.XU patent/CN205388506U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108225443A (en) * | 2016-12-14 | 2018-06-29 | 中国石油天然气股份有限公司 | Natural gas flow detects loop device |
| CN111854893A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter verification loop system and gas temperature control method thereof |
| CN111854893B (en) * | 2019-04-26 | 2022-06-03 | 中国石油天然气股份有限公司 | Natural gas flowmeter verification loop system and gas temperature control method thereof |
| CN110849233A (en) * | 2019-11-28 | 2020-02-28 | 中国计量科学研究院 | Online measurement method for effective volume of piston cylinder of piston type gas flow standard device |
| CN110849233B (en) * | 2019-11-28 | 2022-03-11 | 中国计量科学研究院 | Online measurement method for effective volume of piston cylinder of piston type gas flow standard device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US10816434B2 (en) | Apparatus and method for leak testing | |
| CN204085645U (en) | With the gas flow standard device of self calibration structure | |
| CN205388506U (en) | Circulating high -pressure gas flow rate standard facility | |
| CN103471686A (en) | Gas flow standard device and application method thereof | |
| CN203837782U (en) | Diaphragm gas meter metering performance isothermal calibrating apparatus under conditions of limiting temperature | |
| CN203732104U (en) | Laminar flow tube used for flow detection of high temperature and high pressure gas | |
| CN109211372B (en) | Low-pressure critical flow venturi nozzle calibrating device | |
| CN104678985B (en) | A kind of device and method of verification mass flow controller | |
| CN207231786U (en) | A kind of air-valve comprehensive performance test device | |
| CN103822765A (en) | Device for detecting air leakage rate of large-scale ventilating device | |
| CN103616313A (en) | On-line gas density measuring method | |
| CN210036908U (en) | High-pressure natural gas flow primary standard device with adjustable sonic nozzle | |
| CN108072410A (en) | Air flow meter detecting system | |
| CN204832086U (en) | Automatic calbiration system of dew -point hygrometer | |
| CN105890715A (en) | Verifying device of small-flow gas flow meter | |
| CN105319145A (en) | Continuous measuring method of humidity of high-speed medium-temperature negative-pressure air | |
| CN106556430A (en) | A kind of gas Actual flow test system and method with self-calibration function | |
| CN203949715U (en) | Gas micro-flow meter on-line calibration device | |
| CN203772508U (en) | Large-scale ventilating device air leakage rate detector | |
| CN113686415B (en) | Flow measurement standard device for simulating actual application scene | |
| CN205843740U (en) | Big orifice coal combustion gas quality flow control system in high precision | |
| CN213515916U (en) | Loop flow calibrating device | |
| CN111896191B (en) | On-site calibration method and auxiliary calibration equipment for integral oil tank leakage detection equipment | |
| CN112484822A (en) | Loop flow calibrating device | |
| CN205785652U (en) | A kind of device of detected air pressure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20180304 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |