CN103017974B - Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium - Google Patents
Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium Download PDFInfo
- Publication number
- CN103017974B CN103017974B CN201110288877.1A CN201110288877A CN103017974B CN 103017974 B CN103017974 B CN 103017974B CN 201110288877 A CN201110288877 A CN 201110288877A CN 103017974 B CN103017974 B CN 103017974B
- Authority
- CN
- China
- Prior art keywords
- pressure
- flange
- temperature
- differential pressure
- charges
- 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.)
- Active
Links
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a novel transmissible pressure and differential pressure transmitter for measuring pressure of an ultrahigh temperature medium. A measuring diaphragm and an isolating diaphragm are respectively welded on the outer end faces of a connecting flange and an isolating flange, a radiating tube is welded between the connecting flange and the isolating flange, and then ultrahigh temperature resistant high-viscosity high-temperature tube filling liquid is injected to form an ultrahigh temperature tube filling liquid cavity; and a matching flange is welded on the other end of the isolating flange to connect a stainless steel capillary tube and the pressure and differential pressure transmitter, and low-viscosity high-temperature tube filling liquid is injected to form a normal high-temperature tube filling liquid cavity. In the working process, the pressure of the ultrahigh temperature medium is transmitted to the isolating diaphragm through the ultrahigh temperature resistant high-viscosity high-temperature tube filling liquid, and then transmitted to the main body of the pressure and differential pressure transmitter through the low-viscosity high-temperature tube filling liquid in the stainless steel capillary so that the pressure transmission and measurement are realized. By means of high temperature isolation and radiation, the ultrahigh temperature is not directly transmitted to the low-viscosity high-temperature tube filling liquid so as to protect the high-temperature transmissible pressure and differential pressure transmitter and realize the pressure measurement of the ultrahigh temperature medium.
Description
Art
The present invention relates to a kind of novel teletransmission pressure, differential pressure transmitter, it is applicable to the measurement of more than 400 DEG C superhigh temperature media, can be widely used in the industrial circles such as chemical industry, electric power, oil, metallurgy.
Background technology
At present in pressure, differential pressure transmitter industry, the teletransmission pressure of known measurement high-temperature medium, differential pressure transmitter by band measuring diaphragm bellows, stainless steel capillary, high viscosity high temperature charges liquid or low viscosity high temperature charges liquid and pressure, differential pressure transmitter body form.When measuring high-temperature medium, select full-bodied high temperature to charge liquid, this to charge liquid boiling point high, but liquid fluidity is poor, have impact on the transmission speed of pressure in stainless steel capillary, and cause teletransmission pressure, differential pressure transmitter delay of response, the response time is long; Select low viscous high temperature to charge liquid, although its good fluidity, boiling point is low, when medium temperature is higher than its boiling point, the high temperature in cavity charges liquid will transient evaporation, and volumetric expansion directly causes measuring diaphragm to be heaved, and forever irrecoverable, cause function to damage.This teletransmission pressure, differential pressure transmitter charge the impact of liquid characteristic by high temperature, do not possess the ability of the superhigh temperature pressure medium of measurement more than 400 DEG C.
Summary of the invention
In order to overcome existing teletransmission pressure, the deficiency that differential pressure transmitter is measured for superhigh temperature pressure medium, the invention provides a kind of teletransmission pressure of novel measurement superhigh temperature pressure medium, differential pressure transmitter, this superhigh temperature teletransmission pressure, differential pressure transmitter adopts brand-new split-type structural design, utilize the high viscosity high temperature of superhigh temperature resistant to charge liquid and low viscous high temperature and charge the method that liquid phase combines, and make high viscosity high temperature charge liquid to press close to superhigh temperature medium, low viscosity high temperature is made to charge liquid away from superhigh temperature medium, thus guaranteeing superhigh temperature teletransmission pressure, while the response time of differential pressure transmitter, the medium temperature of more than 400 DEG C can be adapted to.
The technical solution adopted in the present invention is: the outer face of joint flange, isolation flange welds measuring diaphragm and isolation diaphragm respectively, then heat-dissipating cylinder is welded to connect between joint flange and isolation flange, the high viscosity high temperature of superhigh temperature resistant of reinjecting charges liquid, forms a superhigh temperature and charges sap cavity body; At other end pairing welding one companion flange of isolation flange, connect stainless steel capillary and pressure, differential pressure transmitter, inject low viscosity high temperature and charge liquid, form a common high temperature and charge sap cavity body.During work, superhigh temperature pressure medium charges liquid by the high viscosity high temperature of superhigh temperature resistant and is delivered to isolation diaphragm, isolation diaphragm charges liquid by low viscosity high temperature in stainless steel capillary again and superhigh temperature pressure medium is delivered to pressure, differential pressure transmitter body, achieves pressure transmission and measurement.Charged high temperature isolation and the heat radiation of sap cavity body by superhigh temperature, ultra-high temperature can not be delivered to low viscous high temperature and charge liquid, thus protects superhigh temperature teletransmission pressure, differential pressure transmitter, achieves the measurement of superhigh temperature pressure medium.
The invention has the beneficial effects as follows, this novel teletransmission pressure, differential pressure transmitter can realize the pressure survey of superhigh temperature medium, ensure itself not to be damaged simultaneously.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
Fig. 1 is structure principle chart of the present invention.
Fig. 2 is fundamental diagram of the present invention.
1. measuring diaphragms, 2. joint flange, 3. heat-dissipating cylinder in figure, 4. superhigh temperature charges hole, 5. high temperature charges hole, 6. capillary tube connector, 7. stainless steel capillary, 8. pressure, differential pressure transmitter body, 9. low viscosity high temperature charges liquid, 10. companion flange, 11. isolation diaphragms, 12. isolation flanges, 13. high viscosity high temperature charge liquid.
Embodiment
In FIG, joint flange (2), isolation flange (12) two outer face arrange measuring diaphragm (1) and isolation diaphragm (11) respectively, heat-dissipating cylinder (3) is welded to connect between joint flange (2) and isolation flange (12), hole (4) is charged by the superhigh temperature on isolation flange (12), the high viscosity high temperature of superhigh temperature resistant is charged after liquid (13) injects in right amount and seal, constitute a superhigh temperature and charge sap cavity body.Companion flange (10), capillary tube connector (6), stainless steel capillary (7) and pressure, differential pressure transmitter body (8) are welded to connect successively, again with isolation flange (12) assembly welding, then the high temperature on companion flange charges hole (5) and injects low viscosity high temperature and charge liquid (9) and seal afterwards, constitutes a common high temperature and charges sap cavity body.Two different heatproof cavitys are kept apart by isolation diaphragm (11), realize pressure transmission.
In fig. 2, when measuring diaphragm (1) is subject to ultra-high temperature pressure medium, pressure charges liquid (13) by the high viscosity high temperature that superhigh temperature charges in sap cavity body and is delivered to isolation diaphragm (11), pressure is passed to the common high temperature low viscosity high temperature charged in sap cavity body and charges liquid (9) by isolation diaphragm (11), finally be delivered to pressure, differential pressure transmitter body (8), achieve pressure transmission and the measurement of superhigh temperature medium.The heat that superhigh temperature medium is delivered to measuring diaphragm (1) along with superhigh temperature charge sap cavity body and heat-dissipating cylinder (3) transmission step by step, distribute and weaken, liquid can not be charged to common high temperature and impact.The jitty that simultaneously superhigh temperature charges sap cavity body improves the speed that pressure transmits, and shortens and measures the response time.
Claims (4)
1. teletransmission pressure, the differential pressure transmitter of novel measurement superhigh temperature pressure medium, charges sap cavity body and common high temperature by superhigh temperature and charges sap cavity body and form, it is characterized in that: superhigh temperature charges sap cavity body and common high temperature and charges between sap cavity body and be provided with isolation diaphragm.
2. teletransmission pressure, the differential pressure transmitter of measurement superhigh temperature pressure medium according to claim 1, it is characterized in that: superhigh temperature charges the high viscosity high temperature injecting superhigh temperature resistant in sap cavity body and charges liquid, common high temperature charges injection low viscosity high temperature in sap cavity body and charges liquid.
3. teletransmission pressure, differential pressure transmitter as claimed in claim 1, it is characterized in that: this teletransmission pressure, differential pressure transmitter comprise joint flange (2), isolation flange (12) and heat-dissipating cylinder (3), measuring diaphragm (1) and isolation diaphragm (11) is arranged respectively in two outer faces of acting flange (2) and isolation flange (12), heat-dissipating cylinder (3) is welded to connect between joint flange (2) and isolation flange (12), constitutes described superhigh temperature thus and charges sap cavity body.
4. teletransmission pressure, differential pressure transmitter as claimed in claim 2, it is characterized in that: this teletransmission pressure, differential pressure transmitter comprise joint flange (2), isolation flange (12) and heat-dissipating cylinder (3), measuring diaphragm (1) and isolation diaphragm (11) is arranged respectively in two outer faces of acting flange (2) and isolation flange (12), heat-dissipating cylinder (3) is welded to connect between joint flange (2) and isolation flange (12), constitutes described superhigh temperature thus and charges sap cavity body.
5. the teletransmission pressure as described in one of Claims 1-4, differential pressure transmitter, it is characterized in that: this teletransmission pressure, differential pressure transmitter comprise companion flange (10), capillary tube connector (6), stainless steel capillary (7) and pressure, differential pressure transmitter body (8), these parts are welded to connect successively, again with isolation flange (12) assembly welding, form described common high temperature thus and charge sap cavity body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288877.1A CN103017974B (en) | 2011-09-26 | 2011-09-26 | Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110288877.1A CN103017974B (en) | 2011-09-26 | 2011-09-26 | Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103017974A CN103017974A (en) | 2013-04-03 |
| CN103017974B true CN103017974B (en) | 2015-03-25 |
Family
ID=47966833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110288877.1A Active CN103017974B (en) | 2011-09-26 | 2011-09-26 | Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103017974B (en) |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105806549A (en) * | 2014-12-31 | 2016-07-27 | 美钻石油钻采***(上海)有限公司 | Pressure detection device |
| CN105021325B (en) * | 2015-07-02 | 2017-11-14 | 上海自动化仪表有限公司 | Capacitance pressure transducer, |
| CN105671394B (en) * | 2016-01-22 | 2018-02-23 | 上海洛丁森工业自动化设备有限公司 | Gallium liquid metal material and its application on teletransmission pressure, differential pressure transmitter |
| CN107543645A (en) * | 2016-06-29 | 2018-01-05 | 云南科威液态金属谷研发有限公司 | Diaphragm pressure transmitter |
| CN107131997A (en) * | 2017-06-23 | 2017-09-05 | 云南科威液态金属谷研发有限公司 | A kind of high-temp pressure sensor |
| CN107505026A (en) * | 2017-08-31 | 2017-12-22 | 安徽禾禾自动化科技有限公司 | A kind of single flange capacitive liquid level transmitter |
| CN109580082A (en) * | 2018-08-24 | 2019-04-05 | 浙江洛丁森智能科技有限公司 | A kind of the teletransmission component and teletransmission pressure transmitter of the double isolation diaphragms of band |
| CN109632180A (en) * | 2019-01-07 | 2019-04-16 | 上海自动化仪表有限公司 | Isolating device for superhigh temperature pressure transmitter |
| CN109632177B (en) * | 2019-01-07 | 2024-05-31 | 中国原子能科学研究院 | Ultra-high temperature pressure transmitter |
| CN110608841A (en) * | 2019-10-29 | 2019-12-24 | 上海洛丁森工业自动化设备有限公司 | Remote transmission device for pressure transmitter, remote transmission pressure transmitter and measuring system |
| CN111337184A (en) * | 2020-03-20 | 2020-06-26 | 浙江中控技术股份有限公司 | Ultra-high temperature type pressure transmitter measurement system |
| CN114235271B (en) * | 2021-11-12 | 2024-01-12 | 潍柴动力股份有限公司 | Dew point detection method and device for differential pressure sensor, storage medium and equipment |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2910269A1 (en) * | 1979-03-15 | 1980-10-23 | Siemens Ag | Temp. gradient compensation of differential pressure transducer - forms parts of one chamber in different temperature regions |
| CN1162991A (en) * | 1994-08-22 | 1997-10-22 | 福克斯保罗公司 | Differential pressure transmitter |
| JP2001074578A (en) * | 1999-09-02 | 2001-03-23 | Fuji Electric Co Ltd | Temperature characteristic regulating method for differential pressure measuring device |
| CN1651891A (en) * | 2005-02-25 | 2005-08-10 | 沈阳市传感技术研究所 | Telemetering high-temp pressure resistant / differential pressure sensor |
| CN201259455Y (en) * | 2008-10-07 | 2009-06-17 | 刘大伟 | Remote transmitting pressure, pressure difference transducer having temperature compensation corrugated pipe |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7538401B2 (en) * | 2005-05-03 | 2009-05-26 | Rosemount Aerospace Inc. | Transducer for use in harsh environments |
-
2011
- 2011-09-26 CN CN201110288877.1A patent/CN103017974B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2910269A1 (en) * | 1979-03-15 | 1980-10-23 | Siemens Ag | Temp. gradient compensation of differential pressure transducer - forms parts of one chamber in different temperature regions |
| CN1162991A (en) * | 1994-08-22 | 1997-10-22 | 福克斯保罗公司 | Differential pressure transmitter |
| JP2001074578A (en) * | 1999-09-02 | 2001-03-23 | Fuji Electric Co Ltd | Temperature characteristic regulating method for differential pressure measuring device |
| CN1651891A (en) * | 2005-02-25 | 2005-08-10 | 沈阳市传感技术研究所 | Telemetering high-temp pressure resistant / differential pressure sensor |
| CN201259455Y (en) * | 2008-10-07 | 2009-06-17 | 刘大伟 | Remote transmitting pressure, pressure difference transducer having temperature compensation corrugated pipe |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103017974A (en) | 2013-04-03 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103017974B (en) | Novel transmissible pressure and differential pressure transmitter for measuring pressure of ultrahigh temperature medium | |
| CN204575146U (en) | Integration welded type ring casing pressure orifice plate | |
| CN103047506B (en) | Seal cage is set to the pipeline compensator on inclined-plane | |
| CN104089824A (en) | Pressure-resisting testing device for large-diameter welding-structure metal pipeline | |
| CN103712729B (en) | Non-solder seals pressure transducer | |
| CN202119556U (en) | Thermocouple penetrating assembly of high-temperature high-voltage container | |
| CN109763916A (en) | A kind of solid rocket motor nozzle component connection sealing structure | |
| CN103063069B (en) | Packaging technique for heat pipe liquid charging pipe for satellites | |
| CN206573251U (en) | High temperature teletransmission pressure difference transmitter | |
| CN202302432U (en) | Axial double-channel sealing structure for thin-wall flange flat groove for use under complex working condition | |
| CN205538089U (en) | Pressure gauge bellows pressure measurement protection device in pit | |
| CN204476300U (en) | A kind of insulated tubing of filling high pressure argon gas | |
| CN105715899A (en) | Maintenance-free compensator provided with online detecting device | |
| CN205858685U (en) | Refrigeration compressor rolling piston | |
| CN204300602U (en) | Be provided with the non-maintaining compensator of on-line measuring device | |
| CN201944475U (en) | Abrasion-resistant separating corrugation expansion joint | |
| CN204785307U (en) | Anticorrosive plastic tubing pipeline of inside lining | |
| CN207514438U (en) | A kind of wear-resisting carbon steel pipe fitting joint | |
| CN203431415U (en) | Plugging structure for circulating ammonia water pipeline without stopping production | |
| CN207335898U (en) | A kind of profound hypothermia gold iron thermocouple with thermometric ball | |
| CN103062564B (en) | A kind of method improving pipeline compensator stuffing box packing uniformity | |
| CN202769154U (en) | Steel-plastic transition connector | |
| CN201688939U (en) | Hydraulic isolating device for vacuuming and filling medium on site | |
| CN203616068U (en) | Helium mass spectrometer leak detection testing apparatus for diaphragm capsule assembly of carrier rocket | |
| CN102445335A (en) | Pressure detection method of electric pressure cooker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |