CN202110028U - Plunger type pressure measuring pup joint - Google Patents
Plunger type pressure measuring pup joint Download PDFInfo
- Publication number
- CN202110028U CN202110028U CN2011202085985U CN201120208598U CN202110028U CN 202110028 U CN202110028 U CN 202110028U CN 2011202085985 U CN2011202085985 U CN 2011202085985U CN 201120208598 U CN201120208598 U CN 201120208598U CN 202110028 U CN202110028 U CN 202110028U
- Authority
- CN
- China
- Prior art keywords
- plunger
- pup joint
- pressure measuring
- type pressure
- pipe nipple
- 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
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- Measuring Fluid Pressure (AREA)
Abstract
The utility model relates to a plunger type pressure measuring pup joint which comprises a cylindrical pup joint with two opened ends. The upper end and the lower end of the cylindrical pup joint are respectively provided with a connecting screw thread, and the inner part of the cylindrical pup joint is a cylindrical hollow cavity body. The plunger type pressure measuring pup joint is characterized in that the hollow cavity body is internally provided with anti-freeze liquid and a cylindrical plunger capable of preventing effusion of the anti-freezing liquid, and the diameter of the plunger is smaller than that of the hollow cavity body. The situations that the plunger type pressure measuring pup joint is frozen and no data are monitored can be avoided due to the arrangement of the plunger and the anti-freeze liquid in the pressure measuring pup joint; the plunger type pressure measuring pup joint is made of stainless steel materials, has small friction resistance, and can reduce the pressure measuring error; the anti-freezing liquid adopts engine oil and is difficult to flow into a pipeline to result in oil loss, thereby better transmitting pressure; and the plunger type pressure measuring pup joint can guarantee the measurement accuracy.
Description
Technical field
The utility model relates to a kind of plunger type pressure measurement pipe nipple, in particular, relates in particular to the plunger type pressure measurement pipe nipple that is difficult for freezing a kind of winter.
Background technology
In the pipe production process, often relate to the measurement of manifold pressure, general pressure survey all is tensimeter and pressure unit.During winter operation, generally all can on tensimeter and pressure unit valve and pipe nipple, wrap heat-insulation layer, anti-no-go nipple is frozen and is influenced the measurement of pressure.Because the maritime environment temperature is lower, part also often is frozen in even the pressure measurement pipe nipple is wrapped heat-insulation layer on the pipeline at place, air port, can not carry out pressure survey, can't monitor the production data on the pipeline.If when unusual fluctuations occurring on the pipeline, can not in time come to light, have a strong impact on system's normal and stable production run.
Summary of the invention
The utility model provides the plunger type pressure measurement that is difficult for freezing a kind of winter pipe nipple in order to overcome the shortcoming of above-mentioned technical matters.
The plunger type pressure measurement pipe nipple of the utility model; The tubular pipe nipple that comprises both ends open; The top and bottom of this tubular pipe nipple are provided with connecting thread; The inside of tubular pipe nipple is the cylindrical cavity, and its special feature is: be provided with antifreezing liquid in the said cavity body and can prevent the cylindrical plunger that antifreezing liquid flows out, the diameter of said plunger is less than the diameter of cavity body.The top and bottom of tubular pipe nipple all are provided with connecting thread, help realization and are connected with valve switch with pressure-detecting device.In the tubular pipe nipple, be provided with antifreezing liquid, realized that the tubular pipe nipple can not be frozen in winter yet, reflected force value actual in the pipeline exactly; The diameter of cylindrical plunger has just guaranteed that less than the diameter of cylindrical cavity plunger can be up and down freely in cavity body, has guaranteed the proper testing of pipe under test pressure.Simultaneously, the size of plunger is also satisfied can prevent that antifreezing liquid from flowing out.
The plunger type pressure measurement pipe nipple of the utility model, the top and bottom of said tubular pipe nipple are connected with pressure unit and valve respectively.Between pressure measurement pipe nipple and pipe under test, be provided with valve, be beneficial to the installation and maintenance of pressure measurement pipe nipple; Pressure unit is realized the measurement of manifold pressure.
The plunger type pressure measurement pipe nipple of the utility model, said antifreezing liquid is a machine oil.Machine oil has antifreezing effect preferably, and machine oil also obtains easily, is difficult for flowing in the pipe under test.
The plunger type pressure measurement pipe nipple of the utility model, said tubular pipe nipple and plunger are stainless steel material.Tubular pipe nipple and plunger adopt stainless steel material, have less frictional resistance, have reduced the pressure measurement error effectively.
The beneficial effect of the utility model is: be provided with a plunger in the pressure measurement pipe nipple of (1) the utility model, the antifreezing liquid of on plunger, annotating has prevented that effectively pressure measurement in winter pipe nipple from being frozen, and has avoided the generation of monitoring less than the production data situation; (2) the plunger type pressure measurement pipe nipple of the utility model adopts stainless steel material, and frictional resistance is little, has reduced the pressure measurement error; (3) to adopt the liquid that is difficult for freezing be machine oil to the plunger type pressure measurement pipe nipple of the utility model, and machine oil density is smaller, is difficult for making in the flow ipe machine oil to run off, and can transmit pressure preferably; Guaranteed the accuracy of measuring.
Description of drawings
Fig. 1 is the perspective view of the utility model;
Fig. 2 is the cross section structure synoptic diagram of the utility model;
Fig. 3 is the user mode figure of the utility model.
1 tubular pipe nipple, 2 connecting threads, 3 cavity body, 4 plungers, 5 valves, 6 antifreezing liquids, 7 pressure units, 8 pipe under test.
Embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
As depicted in figs. 1 and 2, provided the perspective view and the cross section structure synoptic diagram of the utility model respectively, it comprises tubular pipe nipple 1, connecting thread 2, cavity body 3, plunger 4, antifreezing liquid 6; Shown tubular pipe nipple 1 is that both ends open inside is the shape of cylindrical cavity 3; Top and bottom at tubular pipe nipple 1 outside surface are provided with connecting thread 2; Plunger 4 is positioned at the bottom position place of cavity body 3, and antifreezing liquid 6 is positioned at the upper position of cavity body 3, and being shaped as of plunger 4 is cylindrical.The diameter of plunger 4 so that guarantee that plunger can move freely in cavity body 3, is realized the normal delivery of pressure less than the diameter of cavity body 3.Distance between plunger 4 and tubular pipe nipple 1 inwall also should satisfy: the antifreezing liquid that is positioned at plunger 4 tops can not flow out.
Tubular pipe nipple 1 is stainless steel material with plunger 4, can effectively reduce the measuring error of pressure; Antifreezing liquid 6 oil recovery machine oil, bayonet gauge surface tension are big, density is little, are difficult for after the gap location of plunger 4 and pipe nipple passage 3 flows away, causing the pressure measurement data deviation.
The installation and application of the plunger type pressure measurement pipe nipple of the utility model is described below in conjunction with Fig. 3:
At first; Connecting thread 2 through the lower end is connected tubular pipe nipple 1 with valve 5 on the pipe under test 8; And plunger 4 put into cavity body 3, antifreezing liquid 6 is filled with cavity body 3 after, again pressure measurement tool pressure transmitter 7 is contained in the upper end position of tubular pipe nipple 1; Open valve 5, can realize measurement pressure in the pipe under test 8.Even in the winter of severe cold, also can guarantee the normal monitoring of pipeline pressure.
Claims (4)
1. plunger type pressure measurement pipe nipple; The tubular pipe nipple (1) that comprises both ends open; The top and bottom of this tubular pipe nipple are provided with connecting thread (2); The inside of tubular pipe nipple is cylindrical cavity (3), it is characterized in that: be provided with antifreezing liquid (6) in the said cavity body (3) and can prevent the cylindrical plunger (4) that antifreezing liquid flows out, the diameter of said plunger is less than the diameter of cavity body.
2. plunger type pressure measurement pipe nipple according to claim 1 is characterized in that: the top and bottom of said tubular pipe nipple (1) are connected with pressure unit (7) and valve (5) respectively.
3. plunger type pressure measurement pipe nipple according to claim 1 and 2 is characterized in that: said antifreezing liquid is a machine oil.
4. plunger type pressure measurement pipe nipple according to claim 1 and 2 is characterized in that: said tubular pipe nipple (1) and plunger (4) are stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202085985U CN202110028U (en) | 2011-06-21 | 2011-06-21 | Plunger type pressure measuring pup joint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011202085985U CN202110028U (en) | 2011-06-21 | 2011-06-21 | Plunger type pressure measuring pup joint |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202110028U true CN202110028U (en) | 2012-01-11 |
Family
ID=45435471
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011202085985U Expired - Fee Related CN202110028U (en) | 2011-06-21 | 2011-06-21 | Plunger type pressure measuring pup joint |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202110028U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109349921A (en) * | 2018-11-09 | 2019-02-19 | 青岛歌尔微电子研究院有限公司 | Detection structure, control method and the electric pressure cooking saucepan of electric pressure cooking saucepan air pressure inside |
-
2011
- 2011-06-21 CN CN2011202085985U patent/CN202110028U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109349921A (en) * | 2018-11-09 | 2019-02-19 | 青岛歌尔微电子研究院有限公司 | Detection structure, control method and the electric pressure cooking saucepan of electric pressure cooking saucepan air pressure inside |
| CN109349921B (en) * | 2018-11-09 | 2021-04-13 | 青岛歌尔微电子研究院有限公司 | Detection structure and control method for internal air pressure of electric pressure cooker and electric pressure cooker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20120621 |