CN205861173U - A kind of control device of intelligence piston volume tube assay device - Google Patents
A kind of control device of intelligence piston volume tube assay device Download PDFInfo
- Publication number
- CN205861173U CN205861173U CN201620813536.XU CN201620813536U CN205861173U CN 205861173 U CN205861173 U CN 205861173U CN 201620813536 U CN201620813536 U CN 201620813536U CN 205861173 U CN205861173 U CN 205861173U
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- China
- Prior art keywords
- heat exchanger
- outfan
- tube
- unit
- input
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Abstract
The utility model discloses the control device of a kind of intelligence piston volume tube assay device, including volume pipe body, calibrating tube and heat exchanger unit it is provided with on described volume pipe body, described calibrating tube is connected with the circulation of described heat exchanger unit, temperature transmitter, standard scale and temperature regulator it is provided with on described calibrating tube, the outfan of described temperature transmitter and the outfan of described standard scale input with described temperature regulator respectively is connected, and the outfan of described temperature regulator is connected with the control output end of described heat exchanger unit.After this utility model is by using intelligence piston volume tube by the parameter of on-line real-time measuremen piston, by regulating and controlling the temperature variation of piston volume tubing, reduces the parameter affecting calibration uncertainty, improve measuring accuracy.
Description
Technical field
This utility model relates to a kind of assay device, refers more particularly to the control of a kind of intelligence piston volume tube assay device
Device.
Background technology
The tradition ball volume pipe metering to flow, the metering to temperature and all can be to heat energy to the calculation of heat energy
The accuracy of metering produces considerable influence；Accuracy in order to ensure flow meter thermal metering, it usually needs make flow meter have
Meet necessarily required flow measurement accuracy, temperature measurement accuracy and heat energy accuracy in computation etc.；Therefore, flow meter exists
Before dispatching from the factory or the stage such as maintenance would generally accept flow verification, temperature calibrating and calculation calibrating.
At present, tradition ball volume pipe is carried out the implementation of flow verification usually: arrange and include pump, voltage stabilizing
Tank, standard scale, flow meter to be checked and the flow verification system in water tank/pond, first, pump by medium from water tank/pond
Extracting out, medium flows back into water tank/pond after flowing through pump, vacuum tank, standard scale and flow meter to be checked successively.Testing person
Can be according to the standard scale metering adaptive adjustment flow meter to be checked to flow, so that the metering of flow is tied by volume pipe to be checked
Fruit is identical to the metric results of flow with standard scale as far as possible, so that the flow measurement accuracy of volume pipe to be checked meets
Certain requirement.
In existing ball volume pipe verification system, water tank/pond is typically open, and thermal losses is the biggest；With
Time, the difference between the HVAC operating mode of this flow verification system and reality is the biggest, through flow verification system calibrating
When flow meter is in the HVAC operating mode being applied to reality, often there is bigger error in its flow measurement result, thus existing
The energy loss of flow verification system and flow verification accuracy all await further improving.
Utility model content
The purpose of this utility model is that provides a kind of intelligence piston volume tube calibrating dress to solve the problems referred to above
The control device put.
This utility model is achieved through the following technical solutions above-mentioned purpose:
This utility model includes volume pipe body, and described volume pipe body is provided with calibrating tube and heat exchanger unit, institute
State calibrating tube to be connected with the circulation of described heat exchanger unit, described calibrating tube is provided with temperature transmitter, standard scale and temperature and adjusts
Control device, the outfan of described temperature transmitter and the outfan of described standard scale are respectively with the input of described temperature regulator even
Connecing, the outfan of described temperature regulator is connected with the control output end of described heat exchanger unit.
Further, described temperature regulator includes comparator, PID controller and converter, the output of described calibrating tube
The input of end and described comparator connects, and the outfan of described comparator is connected with the input of described PID controller, described
The outfan of PID controller is connected with the input of described converter, the control output end of described converter and described heat exchanger
Unit connects.
Specifically, described heat exchanger unit includes heat exchanger, refrigeration unit and water pump, described calibrating tube and described heat exchanger
Circulation connects, and the heat exchange port of described refrigeration unit is connected with the heat exchange port of described heat exchanger, described heat exchanger and described system
Being provided with described water pump between cold group, the control output end of described temperature regulator controls input with described water pump and is connected.
Further, the port of export of described temperature transmitter is provided with arithmetical unit.
After this utility model is by using intelligence piston volume tube by the parameter of on-line real-time measuremen piston, by regulation and control
The temperature variation of piston volume tubing, reduces the parameter affecting calibration uncertainty, improves measuring accuracy.
Accompanying drawing explanation
Fig. 1 is structured flowchart of the present utility model.
Detailed description of the invention
The utility model is described in further detail below in conjunction with the accompanying drawings:
As it is shown in figure 1, this utility model includes volume pipe body, described volume pipe body is provided with calibrating tube and heat exchange
Device unit, described calibrating tube is connected with the circulation of described heat exchanger unit, described calibrating tube is provided with temperature transmitter, standard scale
And temperature regulator, the outfan of described temperature transmitter and the outfan of described standard scale respectively with described temperature regulator
Input connects, and the outfan of described temperature regulator is connected with the control output end of described heat exchanger unit.
Described temperature regulator includes comparator, PID controller and converter, the outfan of described calibrating tube and described ratio
The input of relatively device connects, and the outfan of described comparator is connected with the input of described PID controller, described PID controller
Outfan be connected with the input of described converter, the control output end of described converter is connected with described heat exchanger unit.
Described heat exchanger unit includes heat exchanger, refrigeration unit and water pump, and described calibrating tube is with the circulation of described heat exchanger even
Connecing, the heat exchange port of described refrigeration unit is connected with the heat exchange port of described heat exchanger, described heat exchanger and described refrigeration unit
Between be provided with described water pump, the control output end of described temperature regulator controls input with described water pump and is connected.
The port of export of described temperature transmitter is provided with arithmetical unit.
After this utility model is by using intelligence piston volume tube by the parameter of on-line real-time measuremen piston, by regulation and control
The temperature variation of piston volume tubing, reduces the parameter affecting calibration uncertainty, improves measuring accuracy.
These are only preferred embodiment of the present utility model, not in order to limit this utility model, all in this practicality
Any amendment, equivalent and the improvement etc. made within novel spirit and principle, should be included in guarantor of the present utility model
In the range of protecting.
Claims (4)
1. a control device for intelligent piston volume tube assay device, including volume pipe body, it is characterised in that: described volume
Being provided with calibrating tube and heat exchanger unit on tube body, described calibrating tube is connected with the circulation of described heat exchanger unit, described demarcation
Temperature transmitter, standard scale and temperature regulator it is provided with on pipe, the outfan of described temperature transmitter and described standard scale
Outfan input with described temperature regulator respectively is connected, the outfan of described temperature regulator and described heat exchanger unit
Control output end connect.
The control device of intelligence piston volume tube assay device the most according to claim 1, it is characterised in that: described temperature
Modulator includes comparator, PID controller and converter, and the outfan of described calibrating tube and the input of described comparator are even
Connecing, the outfan of described comparator is connected with the input of described PID controller, and the outfan of described PID controller is with described
The input of converter connects, and the control output end of described converter is connected with described heat exchanger unit.
The control device of intelligence piston volume tube assay device the most according to claim 1, it is characterised in that: described heat exchange
Device unit includes that heat exchanger, refrigeration unit and water pump, described calibrating tube are connected with the circulation of described heat exchanger, described refrigeration unit
Heat exchange port is connected with the heat exchange port of described heat exchanger, is provided with described water between described heat exchanger and described refrigeration unit
Pump, the control output end of described temperature regulator controls input with described water pump and is connected.
The control device of intelligence piston volume tube assay device the most according to claim 1, it is characterised in that: described temperature
The port of export of transmitter is provided with arithmetical unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813536.XU CN205861173U (en) | 2016-07-30 | 2016-07-30 | A kind of control device of intelligence piston volume tube assay device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620813536.XU CN205861173U (en) | 2016-07-30 | 2016-07-30 | A kind of control device of intelligence piston volume tube assay device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205861173U true CN205861173U (en) | 2017-01-04 |
Family
ID=57653749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620813536.XU Expired - Fee Related CN205861173U (en) | 2016-07-30 | 2016-07-30 | A kind of control device of intelligence piston volume tube assay device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205861173U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111854860A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter calibrating device and method |
| CN111854861A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter calibration method and device |
-
2016
- 2016-07-30 CN CN201620813536.XU patent/CN205861173U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN111854860A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter calibrating device and method |
| CN111854861A (en) * | 2019-04-26 | 2020-10-30 | 中国石油天然气股份有限公司 | Natural gas flowmeter calibration method and device |
| 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 |
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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: 20170104 Termination date: 20200730 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |