CN103161448A - Diaphragm balanced floating body temperature sensor - Google Patents
Diaphragm balanced floating body temperature sensor Download PDFInfo
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- CN103161448A CN103161448A CN2013100902646A CN201310090264A CN103161448A CN 103161448 A CN103161448 A CN 103161448A CN 2013100902646 A CN2013100902646 A CN 2013100902646A CN 201310090264 A CN201310090264 A CN 201310090264A CN 103161448 A CN103161448 A CN 103161448A
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- metal diaphragm
- diaphragm
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- temperature sensor
- insulation
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Abstract
The invention provides a diaphragm balanced floating body temperature sensor which is simple, practical and obvious in effect. The technical scheme includes that an A limiting body 2 is arranged in a metal diaphragm 3; the metal diaphragm 3 and a B insulation limiting body 5 are arranged in a shell 1; the metal diaphragm 3, the shell 1 and a temperature sensing bag 18 form a sealing space which is filled with temperature sensing liquid 19; pressure balance and unbalance of two sides of the metal diaphragm 3 are used to promote the metal diaphragm 3 to deform in a micro mode, and using a mode of short circuit and disconnection of the metal diaphragm 3 and a coating film contact 4 on the B insulation limiting body 5 to generate pressure balance trigger signals is achieved, and balanced pressure value is captured. The diaphragm balanced floating body temperature sensor is reasonable and practical in design and not prone to be destroyed, improves production efficiency, lowers oil extraction cost, and is suitable for general promotion and use.
Description
Technical field:
The present invention relates to a kind of oil temperature sensor, especially a kind of diaphragm-balanced fluid temperature sensor.
Background technology:
When running into the thermal recovery technology such as ultradeep well, steamed well, fireflood well when oil extraction, downhole temperature, pressure data are that specific aim is formulated the most important foundation that improves recovery ratio technique, can't realize so far dynamic monitoring simultaneously.In at present domestic and international existing various correlation techniques, capillary tube well pressure measuring technology can only be obtained pressure data; Electronics and session fiber measuring technology can not satisfy heat-resisting requirement, and exist signal drift to repair problem, can not truly reflect down-hole temperature and pressure value; Vacuum heat-preserving throwing type down-hole temperature and pressure measuring technology can not realize dynamic monitoring and need the test that stops production, and petroleum industry is needed solution hp-ht well downhole temperature pressure badly can't realize the problem of dynamic monitoring simultaneously.
Summary of the invention
Purpose of the present invention is exactly the defective that exists for prior art, and a kind of with low cost, obvious diaphragm-balanced fluid temperature sensor of result of use is provided.Its technical scheme is: the A limit body is arranged in metal diaphragm, metal diaphragm and B insulation limit body are arranged in housing, metal diaphragm and housing and temperature-sensitive capsule (are full of temperature sensing liquid in the confined space of formation, utilize change metal diaphragm pressure at both sides balance and the unbalance metal diaphragm that impels to produce little distortion, realize that plated film contact short on itself and B insulation limit body and the method for disconnection do the pressure balance triggering signal, catch the equilibrium pressure value.A limit body and metal diaphragm all are provided with corresponding anti-shearing thickness transition arc A and circular arc B, and A limit body and B insulation limit body are avoided compression failure for the protection of metal diaphragm.End face and the fluid passage of B insulation limit body are coated with the conduction plated film, and form electric conductor with triggering the wire connecting screw hole, and the plated film contact is done in its end.
The invention belongs to the temperature sensing liquid bulbs of pressure in direct method balancing side temperature-sensitive capsule, exempt transfer process, be not subjected to environmental disturbances, do not exist the phenomenon such as drift to need not to revise, test result is directly perceived, precisely; The present invention adopts high strength, corrosion-resistant, exotic material to make, and without electronic component, without any need for safeguard measure, is applicable to special, corrosive atmosphere thermometric; The present invention adopts the pressure balance critical point inflation/deflation process lining weighing apparatus bulbs of pressure to convert out the relevant temperature value, and sampling rate is high, is adapted to dynamic monitoring; Volume urine of the present invention is in installation, dispatches from the factory to demarcate to need not after setting completed field adjustable, and maintenance-free is specially adapted to the particular surroundings such as oil well and carries out temperature monitoring.
Description of drawings
Fig. 1 is specific embodiment of the invention structural representation;
Fig. 2 is specific embodiment of the invention A limit body structural representation;
Fig. 3 is specific embodiment of the invention metal diaphragm joint structural representation;
Fig. 4 is specific embodiment of the invention B insulation limit body structural representation.
The specific embodiment
as Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, the diaphragm-balanced fluid temperature sensor, housing 1 consists of by two sections, two sections installation screws that are provided with capillary tube capillary tube snap joint 9, B insulation limit body 5 is installed in middle cavities successively, metal diaphragm 3, A limit body 2 is arranged in the tube chamber of metal diaphragm 3, the plated film contact 4 of the diaphragm plane of metal diaphragm 3 and B insulation limit body 5 is relative and leave specific microgap, filled capillary 6 is connected with capillary tube snap joint 9, the coaxial triggering wire 7 of its inside is connected to plated film contact 4 by triggering wire connecting screw hole 8, housing 1 links with the outer tube of button and metal diaphragm 3 in it and connects and weld, the other end of housing 1 and temperature-sensitive capsule 18 are with screwed connection, be full of temperature sensing liquid 19 in the confined space that metal diaphragm 3 and housing 1 and temperature-sensitive capsule 18 form.the bulbs of pressure during higher than the inflation end pressure that raise and to cause temperature sensing liquid 19 when the measured medium temperature, little distortion occur and contact with plated film contact 4 in metal diaphragm 3, housing 1 and 7 short circuits of triggering wire, be pressed into nitrogen to filled capillary 6, when the bulbs of pressure of the blowing pressure and temperature sensing liquid 19 reach balance, metal diaphragm 3 is little to be become the position again and disconnects with plated film contact 4, trigger wire 7 and be off-state with metal diaphragm 3 and housing 1, utilize the break-make of metal diaphragm 3 and plated film contact 4 as the balance triggering signal, intercepting the blowing pressure value at this moment, complete and measure the measured medium temperature course.
The side of A limit body 2 is symmetrically arranged with fluid passage 11, is used for by measured medium, is provided with the corresponding anti-transition arc 12 of shearing with the end contact position of metal diaphragm 3, and anti-transition arc 12 1 end faces of shearing connect confined planes 10.
B insulation limit body 5 is to be made by zirconia material, its side is provided with symmetrical fluid passage 16 and is used for the nitrogen conducting, be coated with conduction plated film 17 with the contact surface of metal diaphragm 3, and with trigger wire connecting screw hole 8 and be electric conducting state, the plated film of end face is as plated film contact 4.
The present invention adopt particulate metal material make in thin outer thick transitional barrier film; such structure can be because of barrier film pressurized shearing-crushing; barrier film is arranged between two phase shape limit body A, B; barrier film and A limit body and housing keep good electrical conductance; the maintenance electric insulating state that B insulation limit body and barrier film and housing are good; metal diaphragm is separated A, two limit bodies of B in different fluid cavitys from housing, keeps good sealing, and limit body is not crushed mainly for the protection of barrier film.temperature sensing liquid in A limit body contact temperature-sensitive capsule, sensor is inserted in test environment, barrier film can be oppressed on its contact surface that is close to B insulation limit body because of the temperature sensing liquid expanded by heating, the contact of at this moment barrier film and B insulation limit body consists of the short circuit electric conducting state, enter nitrogen to B insulation limit body side pressure, when reaching pressure balance with the temperature sensing liquid bulbs of pressure, the contact of barrier film and B insulation limit body disconnects, B insulation limit body and housing electricity are state of insulation, utilize this leading at pressure balance point, disconnected relation, the Triggering Control System record catches, show this equilibrium pressure value, this force value is converted out corresponding temperature value by the manometric principle of traditional pointer, realize the temperature monitoring of particular surroundings.
Its more accurate force value should be: actual pressure Ps=shows the demarcation gas column pressure P q of this temperature and pressure environment of this temperature environment barrier film starting pressure Pg+ that equilibrium pressure Px-demarcates.
Monitoring speed depends on the cavity rate of pulse nitrogen.The ability of this pressure sensor adaptive temperature environment depends on the high temperature resistant mechanical performance of diaphragm material; Its pressure measurement scope depends on material therefor performance and design specifications, can depending on environment.The oil well actual temperature that adopts thermal recovery technology both at home and abroad at present is all 350 ℃ of left and right, and down-hole pressure generally can not surpass 100MPa, so this sensor can satisfy real needs fully.
The present invention coordinates diaphragm-balanced high temperature fluid pressure sensor, realizes the dynamic monitoring simultaneously of oil temperature pressure.The present invention's practicality reasonable in design, not fragile, improved production efficiency, reduced cost for oil production, be fit to generally promote the use of.
Claims (3)
1. diaphragm-balanced fluid temperature sensor, comprise housing (1), A limit body (2), metal diaphragm (3), B insulation limit body (5) and temperature-sensitive capsule (18), it is characterized in that: described A limit body (2) is arranged in metal diaphragm (3), metal diaphragm (3) and B insulation limit body (5) are arranged in housing (1), be full of temperature sensing liquid (19) in the confined space that metal diaphragm (3) and housing (1) and temperature-sensitive capsule (18) form, utilize change metal diaphragm (3) pressure at both sides balance and the unbalance metal diaphragm (3) that impels to produce little distortion, realize that plated film contact (4) short circuit on itself and B insulation limit body (5) and the method for disconnection do the pressure balance triggering signal, catch the equilibrium pressure value.
2. diaphragm-balanced fluid temperature sensor according to claim 1; it is characterized in that: described A limit body (2) and metal diaphragm (3) all are provided with corresponding anti-shearing thickness transition arc A (12) and circular arc B (14), and A limit body (2) and B insulation limit body (5) are avoided compression failure for the protection of metal diaphragm (3).
3. diaphragm-balanced fluid temperature sensor according to claim 1 and 2, it is characterized in that: end face and fluid passage (16) of described B insulation limit body (5) are coated with the conduction plated film, and forming electric conductor with triggering wire connecting screw hole (8), plated film contact (4) is done in its end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100902646A CN103161448A (en) | 2013-03-13 | 2013-03-13 | Diaphragm balanced floating body temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013100902646A CN103161448A (en) | 2013-03-13 | 2013-03-13 | Diaphragm balanced floating body temperature sensor |
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| Publication Number | Publication Date |
|---|---|
| CN103161448A true CN103161448A (en) | 2013-06-19 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013100902646A Pending CN103161448A (en) | 2013-03-13 | 2013-03-13 | Diaphragm balanced floating body temperature sensor |
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| CN (1) | CN103161448A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405599A (en) * | 2021-06-11 | 2021-09-17 | 二工防爆科技股份有限公司 | Explosion-proof hygrothermograph |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115530U (en) * | 1991-12-24 | 1992-09-09 | 王东来 | Pressure thermometer |
| CN101013043A (en) * | 2006-02-03 | 2007-08-08 | 株式会社日立制作所 | Thermal type flow sensor |
| CN203161212U (en) * | 2013-03-13 | 2013-08-28 | 中国石油大学(华东) | Diaphragm balanced type fluid temperature sensor |
| CN103277091A (en) * | 2012-11-07 | 2013-09-04 | 中国石油大学(华东) | High-temperature well temperature and pressure dynamic monitoring system |
-
2013
- 2013-03-13 CN CN2013100902646A patent/CN103161448A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2115530U (en) * | 1991-12-24 | 1992-09-09 | 王东来 | Pressure thermometer |
| CN101013043A (en) * | 2006-02-03 | 2007-08-08 | 株式会社日立制作所 | Thermal type flow sensor |
| CN103277091A (en) * | 2012-11-07 | 2013-09-04 | 中国石油大学(华东) | High-temperature well temperature and pressure dynamic monitoring system |
| CN203161212U (en) * | 2013-03-13 | 2013-08-28 | 中国石油大学(华东) | Diaphragm balanced type fluid temperature sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113405599A (en) * | 2021-06-11 | 2021-09-17 | 二工防爆科技股份有限公司 | Explosion-proof hygrothermograph |
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Application publication date: 20130619 |