CN207081494U - Can overpressure resistant temperature sensor - Google Patents
Can overpressure resistant temperature sensor Download PDFInfo
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- CN207081494U CN207081494U CN201720992799.6U CN201720992799U CN207081494U CN 207081494 U CN207081494 U CN 207081494U CN 201720992799 U CN201720992799 U CN 201720992799U CN 207081494 U CN207081494 U CN 207081494U
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- temperature sensor
- protection pipe
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- protection
- pullover
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Abstract
The utility model is related to one kind can overpressure resistant temperature sensor; outside temperature sensor protection pipe one and protection pipe two are welded with successively to cold end from thermometric end; the temperature sensor cold end spot welding connects compensating wire; and overcoat protection spring; it is first interior that protection spring positioned at spot welding junction is placed in sealing shroud; high-pressure-resistant sealed insulating cement is filled with sealing shroud is first; the first outside of sealing shroud is provided with sealing pullover two; and butt welding connects between sealing pullover two and protection pipe one, the insulating cement for secondary seal is filled with sealing pullover two.The utility model ensures also reveal under high temperature, high-pressure situations between temperature sensor and protection sleeve pipe by the way of many places are welded; even core is with compensating wire point postwelding in the first interior encapsulating of sealing shroud; compensating wire outer casing spring is put into sealing pullover two and carries out encapsulating twice, can effectively prevent external force and vibrate the damage brought to temperature sensor.
Description
Technical field
The utility model is related to a kind of temperature instrumentation, especially one kind can overpressure resistant temperature sensor, belong to temperature
Sensor technical field.
Background technology
The temperature sensor of resistance to super-pressure be suitable for the temperature survey in the super-pressure place in the production processes such as oil, chemical industry with
Control, particularly High-pressure Polyethylene Production device, it is indispensable temperature instrumentation.
High-pressure polyethylene device reactor pressure is more than 240MPa, reaches as high as 320MPa, traditional high pressure TEMP
Device can only accomplish once to prevent interior leakage bead crack, material stress cracking or temperature sensor armouring occur during long-term use of
Because without secondary leak-proof measure, so as to cause leakage, furthermore polyethylene from high pressure process reactor hyperpressure is special after damage
Property in the event of leakage easily cause great risk, so need one kind can have under superelevation pressure condition many places reach it is pressure-resistant,
Leakage-preventing can overpressure resistant temperature sensor.
If desired for multi-layer sealed result, traditional high-pressure temperature sensor is often entirely placed on temperature in temperature sensor
Count in sleeve pipe, often cause the thermal response time of thermometric slow, and thermometric lag.Therefore need a kind of new to be resistant to super-pressure
Temperature sensor can ensure that the safety used and faster thermal response time.
The content of the invention
Technical problem to be solved in the utility model is：There is provided one kind can overpressure resistant temperature sensor, it has
Three layers of welded seal and floor height means of press seals insulation glue sealing structure, and thermal response time is very fast.
Technical scheme is used by the utility model：One kind can overpressure resistant temperature sensor, including：Protection pipe
First, protection pipe two, temperature sensor, sealing shroud are first, seal pullover two, protection spring, compensating wire, the temperature sensor
It is outside to be welded with protection pipe one and protection pipe two, the temperature sensor cold end spot welding connection compensation successively to cold end from thermometric end
Wire, and overcoat protection spring, the protection spring positioned at spot welding junction be placed in sealing shroud it is first in, the first interior filling of sealing shroud
There is high-pressure-resistant sealed insulating cement, the first outside of sealing shroud is provided with sealing pullover two, and right between sealing pullover two and protection pipe one
Weldering connection, the interior insulating cement being filled with for secondary seal of sealing pullover two.
The temperature sensor is welded with the upper and lower side of protection pipe two, and protection pipe two is welded with protection pipe one, temperature sensor
Welded again with protection pipe one.
The temperature sensor is armoured thermocouple.
The leading portion of protection pipe two is pyramidal structure.
The protection pipe one is provided with the external screw thread being connected with equipment under test.
The beneficial effects of the utility model are：The structure ensures temperature sensor and protective case by the way of welding at three
It will not be revealed under high-pressure situations between pipe；Cold end and compensating wire after secondary seal to external force and vibration with compared with
Good protective action；Temperature sensor thermometric end does not add sleeve pipe, and measurement point, can be effective outside protection pipe and physical contact between media
Lifting thermal response time；The leading portion of protection pipe two is pyramidal structure, can effectively reduce impulsive force of the medium to sleeve pipe.
Brief description of the drawings
Fig. 1 for it is of the present utility model can overpressure resistant arrangement of temperature sensor sectional view.
Embodiment
In order that technical problem, technical scheme and beneficial effect that the utility model solves are more clearly understood, below
In conjunction with the embodiments, the utility model is further elaborated.It should be appreciated that specific embodiment described herein is only
To explain the utility model, it is not used to limit the utility model.
As shown in figure 1, one kind can overpressure resistant temperature sensor, including protection pipe 1, protection pipe 22, TEMP
Device 3, sealing shroud are first 4, sealing pullover 25, protection spring 6, compensating wire 7.
Outside temperature sensor 3 protection pipe 1 and protection pipe 22, TEMP are welded with successively to cold end from thermometric end
The cold end spot welding of device 3 connects compensating wire 7, and overcoat protection spring 6, the protection spring 6 positioned at spot welding junction are placed in sealing shroud
In first 4, high-pressure-resistant sealed insulating cement 8 (encapsulating) is filled with sealing shroud first 4, first 4 outside of sealing shroud is provided with close
Big envelope first 25, and butt welding welding 10 between pullover 25 and protection pipe 1 is sealed, it is secondary filled with being used in sealing pullover 25
The insulating cement 9 (secondary encapsulating) of sealing.Temperature sensor 3 and the lower end of protection pipe 22 welding (once welding A), temperature sensor 3
Weld (secondary welding B) with the upper end of protection pipe 22, protection pipe 22 and protection pipe 1 welding 10, temperature sensor 3 again with protection
Pipe 1 welds (welding C three times).
Temperature sensor 3 is armoured thermocouple.The leading portion of protection pipe 22 is pyramidal structure.Protection pipe 1 is provided with to be set with tested
The external screw thread of standby connection.
It is of the present utility model can overpressure resistant temperature sensor assembling process：
The first step：Temperature sensor 3 is put into protection pipe 1, and thermometric end is exposed outside protection pipe 1, and protection pipe 1 is pushed up
End and tail end weld successively with temperature sensor 3.
Second step：Protection pipe 22 and the welding of protection pipe 1 10, the leading portion of protection pipe 22 welds with temperature sensor 3.
3rd step：7 postwelding overcoat protection springs 6 of the cold end of temperature sensor 3 and compensating wire are put into sealing shroud first 4
Fill high-pressure-resistant sealed insulating cement 8.
4th step：Protection pipe 1 and sealing pullover 25 weld 10 after docking, then carry out secondary sealant pouring and sealing, seal pullover
The insulating cement 9 for secondary seal is filled in 25.
Claims (5)
1. one kind can overpressure resistant temperature sensor, it is including protection pipe one (1), protection pipe two (2), temperature sensor (3), close
Big envelope first (4), sealing pullover two (5), protection spring (6), compensating wire (7), it is characterised in that：The temperature sensor
(3) it is outside to be welded with protection pipe one (1) and protection pipe two (2), temperature sensor (3) cold end successively to cold end from thermometric end
Spot welding connection compensating wire (7), and overcoat protection spring (6), the protection spring (6) positioned at spot welding junction are placed in sealing pullover
In one (4), high-pressure-resistant sealed insulating cement (8) is filled with sealing shroud first (4), sealing shroud is provided with outside sealing shroud first (4)
First two (5), and seal butt welding between pullover two (5) and protection pipe one (1) and be connected, it is filled with sealing pullover two (5) and is used for two
The insulating cement (9) of secondary sealing.
2. according to claim 1 can overpressure resistant temperature sensor, it is characterised in that：The temperature sensor (3)
Welded with protection pipe two (2) upper and lower side, protection pipe two (2) and protection pipe one (1) are welded, temperature sensor (3) again with protection pipe
Weld one (1).
3. according to claim 1 can overpressure resistant temperature sensor, it is characterised in that：The temperature sensor (3)
For armoured thermocouple.
4. according to claim 1 can overpressure resistant temperature sensor, it is characterised in that：Before the protection pipe two (2)
Section is pyramidal structure.
5. according to claim 1-4 it is any it is described can overpressure resistant temperature sensor, it is characterised in that：The protection pipe one
(1) it is provided with the external screw thread being connected with equipment under test.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992799.6U CN207081494U (en) | 2017-08-09 | 2017-08-09 | Can overpressure resistant temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720992799.6U CN207081494U (en) | 2017-08-09 | 2017-08-09 | Can overpressure resistant temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207081494U true CN207081494U (en) | 2018-03-09 |
Family
ID=61419795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720992799.6U Active CN207081494U (en) | 2017-08-09 | 2017-08-09 | Can overpressure resistant temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207081494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781286A (en) * | 2018-12-25 | 2019-05-21 | 重庆材料研究院有限公司 | The preparation method of the temperature-detecting device of high temperature and high pressure environment and the device |
-
2017
- 2017-08-09 CN CN201720992799.6U patent/CN207081494U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109781286A (en) * | 2018-12-25 | 2019-05-21 | 重庆材料研究院有限公司 | The preparation method of the temperature-detecting device of high temperature and high pressure environment and the device |
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