CN203116817U - Pneumatic spring component of piston type standard volume pipe - Google Patents
Pneumatic spring component of piston type standard volume pipe Download PDFInfo
- Publication number
- CN203116817U CN203116817U CN 201220610899 CN201220610899U CN203116817U CN 203116817 U CN203116817 U CN 203116817U CN 201220610899 CN201220610899 CN 201220610899 CN 201220610899 U CN201220610899 U CN 201220610899U CN 203116817 U CN203116817 U CN 203116817U
- Authority
- CN
- China
- Prior art keywords
- pneumatic spring
- pipeline
- cylinder body
- spring component
- piston type
- 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 - Lifetime
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a pneumatic spring component of a piston type standard volume pipe. The pneumatic spring component consists of a nitrogen tank, a pipeline and a valve, wherein the nitrogen tank is internally filled with nitrogen, one end of the nitrogen tank is communicated with a metering cylinder body through the pipeline, and the valve is arranged on the pipeline. The pneumatic spring component disclosed by the utility model is a component enabling the gas-liquid equilibrium in the metering cylinder body, liquid pressure at each position is enabled to be balanced when a piston moves in a positive and negative direction in the metering cylinder body or is in a static state in the metering cylinder body, the disturbance to liquid flow is reduced, and high-accuracy detection for a metering instrument is reached; and structure is simple, adjustment is simple and convenient, installation is convenient, and motion is reliable.
Description
Technical field:
The utility model belongs to a kind of pick-up unit to flow instrument experiment calibrating usefulness, particularly a kind of piston type standard pipe prover pneumatic spring parts.
Background technology:
The piston type standard pipe prover is the device that flow instruments such as the speed mode of tape pulse output, positive displacement are examined and determine, and the pneumatic spring parts are the parts that make vapor liquid equilibrium in the metering cylinder body, piston both forward and reverse directions in cylinder body is moved or when static, fluid pressure tends to balance everywhere, reduce the disturbance to liquid stream, reached high precision to the calibrating of flow instrument.
Summary of the invention:
The purpose of this utility model just is to provide a kind of piston type standard pipe prover pneumatic spring parts, and this modular construction is simple, can regulate gas-liquid pressure automatically.
As above design, the technical solution of the utility model is: a kind of piston type standard pipe prover pneumatic spring parts, it is characterized in that: nitrogen pot, pipeline, valve by interior inflated with nitrogen are formed, and nitrogen pot one end is communicated with the metering cylinder body by pipeline, and valve is installed on the pipeline.
The utlity model has following advantage and good effect:
1, the utility model fills the nitrogen pressure of 0.2～1MPa in nitrogen pot, but the speed that control piston moves in the metering cylinder body is similar with the speed of liquid stream.
2, according to the characteristics of piston type standard pipe prover accuracy of detection height, good reproducibility, the utility model makes piston two ends fluid pressure differential little, thereby has reduced the detection error of liquid disturbance.
3, the utility model without any need for operation, need only once be regulated nitrogen pressure and get final product in verification process.
4, the utility model can overcome the friction of each one in frequent movement, flexibly accurately, increase the service life.
Description of drawings:
Fig. 1 is the utility model structural representation.
Embodiment:
As shown in the figure: a kind of piston type standard pipe prover pneumatic spring parts, by interior inflated with nitrogen nitrogen pot 2. 1., 4. 3. valve form with pipeline.5. one end of nitrogen pot is communicated with the metering cylinder body by pipeline, and valve is installed on the pipeline.
Nitrogen pot one end that certain nitrogen pressure is housed is equipped with valve, nitrogen pressure leads to an end of piston rod when opening, part pressure overcomes by metering cylinder in-vivo medium pressure and acts on axial force on the piston rod, another part overcomes seal to the friction force of piston rod, and in calibrating promotion piston operation in service.Nitrogen pressure suitably is set, can makes the pressure reduction minimum of metering piston upstream and downstream calibrating medium, make liquid stream stable, reduced the detection error.
The utility model is simple in structure, easy, easy for installation, the reliable in action of adjusting.
Claims (1)
1. piston type standard pipe prover pneumatic spring parts, it is characterized in that: nitrogen pot, pipeline, valve by interior inflated with nitrogen are formed, and nitrogen pot one end is communicated with the metering cylinder body by pipeline, and valve is installed on the pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610899 CN203116817U (en) | 2012-11-16 | 2012-11-16 | Pneumatic spring component of piston type standard volume pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220610899 CN203116817U (en) | 2012-11-16 | 2012-11-16 | Pneumatic spring component of piston type standard volume pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203116817U true CN203116817U (en) | 2013-08-07 |
Family
ID=48897153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220610899 Expired - Lifetime CN203116817U (en) | 2012-11-16 | 2012-11-16 | Pneumatic spring component of piston type standard volume pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203116817U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116892985A (en) * | 2023-09-11 | 2023-10-17 | 瑞星久宇燃气设备（成都）有限公司 | Flow metering method and system based on flow characteristics of pressure regulator |
-
2012
- 2012-11-16 CN CN 201220610899 patent/CN203116817U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116892985A (en) * | 2023-09-11 | 2023-10-17 | 瑞星久宇燃气设备（成都）有限公司 | Flow metering method and system based on flow characteristics of pressure regulator |
| CN116892985B (en) * | 2023-09-11 | 2023-11-21 | 瑞星久宇燃气设备（成都）有限公司 | Flow metering method and system based on flow characteristics of pressure regulator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130807 |