CN201637536U - High temperature steam pressure detection protective device - Google Patents
High temperature steam pressure detection protective device Download PDFInfo
- Publication number
- CN201637536U CN201637536U CN2010201114505U CN201020111450U CN201637536U CN 201637536 U CN201637536 U CN 201637536U CN 2010201114505 U CN2010201114505 U CN 2010201114505U CN 201020111450 U CN201020111450 U CN 201020111450U CN 201637536 U CN201637536 U CN 201637536U
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- Prior art keywords
- thermally
- heat resistance
- chocked duct
- joint
- protective device
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- Expired - Fee Related
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Abstract
The utility model provides a high temperature steam pressure detection protective device which comprises a pressure sensor and a heat resistance pipe arranged above a pipeline pressure outlet, wherein the heat resistance pipe comprises a heat resistance pipe body made of low heat conductivity metals, an upper joint and a lower joint, the upper port and the lower port of the heat resistance pipe are fixedly connected with the upper joint and the lower joint together, the lower joint is connected with the pipeline pressure outlet, and the pressure sensor is installed in the upper joint of the heat resistance pipe. The high temperature steam pressure detection protective device is characterized in that the heat resistance pipe body is arranged at one side of the lower joint and is provided with the highest point arranged above the upper port of the lower joint, and an unidirectional drain slope degree with the same slope direction is arranged between arbitrary two points on the same pipe section of the pipe sections among the highest point of the heat resistance pipe body and the upper port and the lower port. A condensed water retention point does not exist on the heat resistance pipe body, and when being precipitated, condensed water in the heat resistance pipe body refluxes to a measured pipeline or is stocked in the space between the pressure sensor and the corresponding pipe section, therefore, the phenomenon of water hammer is eliminated, the safety of the pressure sensor is ensured and the service life is prolonged.
Description
Technical field
The utility model relates to pressure checking device, specifically is that a kind of high-temperature steam pressure detects protective device.
Background technology
In use must adopt corresponding heat insulation and pressure buffer protective device owing to measure the pressure transducer of steam or other high-temperature mediums; for anti-overheated high-temperature medium directly directly contacts with sensor; avoid pressure transducer in hot environment, to work; pressure transducer should connect together by low heat-conducting metal thermally-chocked duct and pipeline, and pipeline pressure reaches pressure transducer by thermally-chocked duct.From Fig. 1 and Fig. 2 as can be seen, existing thermally-chocked duct body 40 ' is a horizontal helix tube, its lower end connects measured pipeline 1 pressure export by lower sub 42 ', and pressure transducer 3 is installed in the top connection 41 ' port of thermally-chocked duct body, and pressure transducer 3 connects gauge outfit 2 by signal wire 5.The deficiency that the thermally-chocked duct that this employing horizontal helix tube is made exists is: when pressure detection stops, having condensate water in the thermally-chocked duct separates out, and stockpile in the lower branch spiral section of thermally-chocked duct and form ponding, after beginning once more to detect, ponding in the spiral section produces water hammer and the stressed diaphragm of direct surge pressure sensor under promoting at a high speed, the pressure lift-off value that water hammer takes place may be tens of times of normal pressure, the directly damage of build-up of pressure sensor, thereby have serious potential safety hazard.
Summary of the invention
In view of having the deficiency that horizontal spiral type pressure drag heat pipe is easy to generate water hammer now, provide a kind of high-temperature steam pressure to detect protective device, to eliminate water hammer, guarantee the Equipment Inspection security of operation, prolong the serviceable life of pressure transducer.
The purpose of this utility model is achieved through the following technical solutions:
A kind of high-temperature steam pressure detects protective device, comprises pressure transducer and is located at the thermally-chocked duct that pipeline pressure exports the top; Thermally-chocked duct comprises thermally-chocked duct body that the low heat-conducting metal of employing is made and the upper and lower joint that is fixed together with the upper and lower port of thermally-chocked duct, and lower sub is connected with the pipeline pressure outlet, and pressure transducer is installed in the top connection of thermally-chocked duct; It is characterized in that: described thermally-chocked duct body is arranged on a side of joint and has a peak that is positioned at its upper port top, has the unidirectional sluicing gradient with aspect between the peak of thermally-chocked duct body and the upper and lower port on the same pipeline section of pipeline section between any 2.
Further, the upper and lower port of above-mentioned thermally-chocked duct body is separately fixed on the sidewall of upper and lower joint, the corresponding connecting hole that connects the thermally-chocked duct body that is provided with on the upper and lower joint sidewall of the upper and lower port of thermally-chocked duct body corresponding position.This thermally-chocked duct is inverted U-shaped curved pipe substantially.
The utlity model has following advantage: adopt pipeline section between the peak of thermally-chocked duct body and its upper and lower port respectively with the unidirectional sluicing gradient of aspect; evaporated condensation water stagnation point on the thermally-chocked duct body; when having condensate water to separate out in the thermally-chocked duct; condensate water is back in the measured pipeline under the deadweight effect or stockpiles between pressure transducer and corresponding pipeline section; eliminate water hammer; the safety of protection pressure transducer guarantees that Equipment Inspection is reliable and stable, increases the service life.
Description of drawings
Fig. 1 is the front view of existing high-temperature steam pressure-detecting device.
Fig. 2 is the left view of Fig. 1.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is the left view of Fig. 3.
Fig. 5 is the amplification schematic perspective view of the thermally-chocked duct that provides of the utility model.
Embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to Fig. 3 and Fig. 4.A kind of high-temperature steam pressure detects protective device; mainly comprise measured pipeline 1, gauge outfit 2, the pressure transducer 3 that is used for test fluid pressure and thermally-chocked duct 4; data processing equipment 2 is fixed on the measured pipeline by mount pad, and pressure transducer 3 connects gauge outfit 2 by signal wire 5.
With reference to Fig. 3 to Fig. 5.Thermally-chocked duct 4 adopts low thermal conductive metallic material to make the upper and lower joint 41,42 that comprises thermally-chocked duct body 40 and be fixedly welded on thermally-chocked duct body 40 two ends; The lower end of thermally-chocked duct body 40 is by the pressure export of the measured pipeline 1 of lower sub 42 connections, and pressure transducer 3 is installed in the top connection 41 of thermally-chocked duct body.
With reference to Fig. 3 to Fig. 5.Thermally-chocked duct body 40 is inverted U-shaped curved pipe substantially, and thermally-chocked duct body 40 is arranged on a side of joint and the top that peak is positioned at its upper port; The upper and lower port of thermally-chocked duct body 40 is separately fixed on the sidewall of upper and lower joint 41,42, the corresponding connecting hole that connects the thermally-chocked duct body that is provided with on upper and lower joint 41,42 sidewalls of thermally-chocked duct body 40 upper and lower port corresponding positions.Have the unidirectional sluicing gradient with aspect between the peak of thermally-chocked duct body 40 and the upper and lower port on the same pipeline section of pipeline section between any 2, water hammer is stopped in evaporated condensation water stagnation point on the whole pipeline section between the thermally-chocked duct body 40 upper and lower ports.High-temperature steam pressure in the pipeline 1 reaches pressure transducer 3 by pipeline 1 pressure export, lower sub 42 connecting holes, thermally-chocked duct body 40, top connection 41 connecting holes successively.
With reference to Fig. 3, Fig. 5.Opposite face middle part at upper and lower joint 41,42 is connected with reinforcing prop 43; this reinforcing prop 43 and upper and lower joint 41,42 are one-body molded; to improve the structural strength of thermally-chocked duct 4; avoid pressure transducer to shake, the safety and the job stability of protection pressure transducer 3 because of change in fluid pressure.
The above, it only is preferred embodiment of the present utility model, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (4)
1. a high-temperature steam pressure detects protective device, comprises pressure transducer and is located at the thermally-chocked duct that pipeline pressure exports the top; Thermally-chocked duct comprises thermally-chocked duct body that the low heat-conducting metal of employing is made and the upper and lower joint that is fixed together with the upper and lower port of thermally-chocked duct, and lower sub is connected with the pipeline pressure outlet, and pressure transducer is installed in the top connection of thermally-chocked duct; It is characterized in that: described thermally-chocked duct body is arranged on a side of joint and has a peak that is positioned at its upper port top, has the unidirectional sluicing gradient with aspect between the peak of thermally-chocked duct body and the upper and lower port on the same pipeline section of pipeline section between any 2.
2. high-temperature steam pressure according to claim 1 detects protective device; it is characterized in that: the upper and lower port of described thermally-chocked duct body is separately fixed on the sidewall of upper and lower joint, the corresponding connecting hole that connects thermally-chocked duct that is provided with on the upper and lower joint sidewall of the upper and lower port of thermally-chocked duct body corresponding position.
3. high-temperature steam pressure according to claim 2 detects protective device, it is characterized in that: be connected with reinforcing prop between the opposite face of described upper and lower joint.
4. detect protective device according to claim 1 or 2 or 3 described high-temperature steam pressure, it is characterized in that: described thermally-chocked duct is inverted U-shaped curved pipe substantially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201114505U CN201637536U (en) | 2010-02-10 | 2010-02-10 | High temperature steam pressure detection protective device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201114505U CN201637536U (en) | 2010-02-10 | 2010-02-10 | High temperature steam pressure detection protective device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201637536U true CN201637536U (en) | 2010-11-17 |
Family
ID=43082038
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201114505U Expired - Fee Related CN201637536U (en) | 2010-02-10 | 2010-02-10 | High temperature steam pressure detection protective device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201637536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280180A (en) * | 2013-07-09 | 2015-01-14 | 郑州椿长仪器仪表有限公司 | Siphon pressure gage |
-
2010
- 2010-02-10 CN CN2010201114505U patent/CN201637536U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104280180A (en) * | 2013-07-09 | 2015-01-14 | 郑州椿长仪器仪表有限公司 | Siphon pressure gage |
| CN104280180B (en) * | 2013-07-09 | 2016-06-29 | 郑州椿长仪器仪表有限公司 | Siphon Pressure gauge |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101117 Termination date: 20170210 |