CN209623895U - A kind of fast-response platinum resistance temperature sensor - Google Patents
A kind of fast-response platinum resistance temperature sensor Download PDFInfo
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- CN209623895U CN209623895U CN201822032608.9U CN201822032608U CN209623895U CN 209623895 U CN209623895 U CN 209623895U CN 201822032608 U CN201822032608 U CN 201822032608U CN 209623895 U CN209623895 U CN 209623895U
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- platinum resistance
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- temperature
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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Abstract
A kind of fast-response platinum resistance temperature sensor, including pressure-bearing casing, armouring Pt100 platinum resistance temperature sensing part, the inner hole of pressure-bearing casing front end temperature-sensitive span access location length L is bellmouth, the front end temperature-sensitive position of armouring Pt100 platinum resistance temperature sensing part is bullet, and the taper of the two temperature-sensitive part is identical and is taper-face contact.It is full of thermally conductive dusty material also between pressure-bearing cannula tip face and the top end face of armouring Pt100 platinum resistance temperature sensing part, keeps transmission of heat by contact thermal resistance between two top end faces smaller.The utility model guarantees that sensor has the smallest thermal inertia, to reach to measured medium temperature fast response.
Description
Technical field
The utility model relates to a kind of platinum resistance temperature sensors.
Background technique
Pressurized-water reactor nuclear power plant primary Ioops water coolant thermometric platinum resistance temperature sensor is power measurement and safeguard protection
Temperature signal is provided, has high requirement in safety, reliability, stability and integrality aspect, especially requires platinum resistance temperature
Degree sensor, which makes the temperature change of coolant, fast and accurately to react, and well can bear high temperature, hyperbaric environment and coolant
The ability washed away of high speed.
The response time of platinum resistance temperature sensor is thermometer to the fast-changing responding ability of measured medium temperature, is
One of important characterization of temperature sensor.Temperature sensor after being encapsulated with ceramics or film Pt100 platinum resistance sensing element, by
In its reasons in structure, when constituting pressurized-water reactor nuclear power plant primary Ioops water coolant thermometric platinum resistance temperature sensor, in Pt100
There are biggish thermal resistance and thermal inertias between resistive platinum wire and measured medium, thus have the disadvantage that: 1. sensor responds
Time is longer, and 2. making the response time of sensor, there are biggish differences, 3. since resistive platinum wire is too thin, limited lifetime.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the above-mentioned insufficient of the prior art and provide a kind of fast-response
Platinum resistance temperature sensor keeps its response fast, to meet pressurized-water reactor nuclear power plant primary Ioops high temperature, high pressure and high speed water coolant
The requirement of temperature measurement.
Technical solution adopted by the utility model to solve the above technical problems is as follows:
A kind of fast-response platinum resistance temperature sensor, it is characterised in that: including pressure-bearing casing, armouring Pt100 platinum resistance sense
Warm component, the inner hole of pressure-bearing casing front end temperature-sensitive span access location length L are bellmouth, the front end of armouring Pt100 platinum resistance temperature sensing part
Temperature-sensitive position is bullet, and the taper of the two temperature-sensitive part is identical and is taper-face contact.
Preferably, conductive powder is full of between pressure-bearing cannula tip face and the top end face of armouring Pt100 platinum resistance temperature sensing part
Powder material is simultaneously compacted thermally conductive powder, keeps transmission of heat by contact thermal resistance between top end face small.
It preferably, include Pt100 platinum resistance in the bullet at the front end temperature-sensitive position of armouring Pt100 platinum resistance temperature sensing part
Silk, double wrap are having Al2O3In the helicla flute of ceramics pole, on the outside of resistive platinum wire, it is cased with Al2O3Powder casing, powder casing
It is crushed and is compacted in undergauge processing, tightly packed Al2O3 is full of between Al2O3 ceramics pole, resistive platinum wire and casing wall
Powder, reach the high-insulation and the smallest interior contact heat transfer resistance and thermal inertia of resistive platinum wire.
Preferably, the armouring Pt100 platinum resistance temperature sensing part includes armor sleeve, Al2O3 ceramics pole, Pt100 platinum electricity
Silk, Al2O3 powder casing, lead, insulating sleeve, connector, holddown spring component, cooling fin, corner coupling head and high temperature is hindered to connect
Device is connect, connector, holddown spring component, cooling fin, corner coupling head and high temperature connector are sequentially connected, connector and pressure-bearing casing
It fixes, holddown spring compressing parts insulating sleeve, before the front end temperature-sensitive position of pressure-bearing casing and armouring Pt100 platinum resistance temperature component
The temperature-sensitive bullet at end is inserted in the bellmouth of pressing sleeve pipe front end, is in close contact two tapered surfaces, is compacted thermally conductive dusty material,
Reach the smallest transmission of heat by contact thermal resistance, so that the temperature of external environment medium be enable quickly to reach temperature-sensing element Pt100 platinum resistance
Silk.
Due to the front end temperature-sensitive position hole taper and armouring Pt100 platinum resistance temperature component of the utility model pressure-bearing casing
The taper of front end bullet is identical, and the temperature-sensitive bullet of armouring Pt100 platinum resistance temperature member forward end is inserted in pressure-bearing casing front end
In bellmouth, reach the smallest transmission of heat by contact thermal resistance, so that the temperature of external environment medium be enable quickly to reach temperature-sensing element
Pt100 resistive platinum wire.
Thermally conductive powder material is full of also between pressure-bearing cannula tip face and the top end face of armouring Pt100 platinum resistance temperature sensing part
Material, keeps transmission of heat by contact thermal resistance between two top end faces smaller.
Also setting up holddown spring component contacts two tapered surfaces closely more, work of the thermally conductive powder in holddown spring component
It is compacted under, heat transfer is faster.
To sum up, the utility model guarantees that sensor has the smallest thermal inertia, quickly rings to reach to measured medium temperature
It answers.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment fast-response platinum resistance temperature sensor.
Fig. 2 is the structural schematic diagram of the utility model embodiment pressure-bearing casing.
Fig. 3 is the structural schematic diagram of the utility model embodiment armouring Pt100 platinum resistance temperature sensing part.
Specific embodiment
The utility model is described in detail below in conjunction with figure embodiment.
As illustrated in fig. 1 and 2, a kind of fast-response platinum resistance temperature sensor, including pressure-bearing casing 1, armouring Pt100 platinum resistance
Temperature sensing part 2 and thermally conductive dusty material 3.
The inner hole of above-mentioned 1 front end temperature-sensitive span access location length L of pressure-bearing casing is bellmouth, taper 2.2o, armouring Pt100 platinum
It is also 2.2 that the front end temperature-sensitive span access location length L of resistance temperature sensing part 2, which is also bullet taper,o, the taper of the two is identical, armouring
In the bellmouth at the front end temperature-sensitive position insertion 1 front end temperature-sensitive position of pressure-bearing casing of Pt100 platinum resistance temperature sensing part 2, thus two
The temperature-sensitive part length L of person is taper-face contact, can preferably conduct heat, see Fig. 2 and 3.
Thermally conductive powder is full of between above-mentioned 1 top end face of pressure-bearing casing and the top end face of armouring Pt100 platinum resistance temperature sensing part 2
Material 3 is simultaneously compacted, and in the present embodiment, thermally conductive dusty material 3 is pure nickel powder.
As shown in figure 3, armouring Pt100 platinum resistance temperature sensing part 2 includes armor sleeve, Al2O3 ceramics pole 2-2, Pt100
Resistive platinum wire 2-3, Al2O3 powder casing 2-4, lead 2-6, insulating sleeve 2-7, connector 2-8, holddown spring component 2-9,
Cooling fin 2-10, corner coupling head 2-11 and high temperature connector 2-12.
It include Pt100 in the bullet of the front end temperature-sensitive span access location length L of above-mentioned armouring Pt100 platinum resistance temperature sensing part 2
Resistive platinum wire 2-3, double wrap on the outside of resistive platinum wire 2-3, are cased with Al2O3's in the helicla flute for having Al2O3 ceramics pole 2-2
Powder casing 2-4, powder casing 2-4 are crushed and are compacted when undergauge is processed, in this way in Al2O3 ceramics pole 2-2, platinum resistance
The powder of tightly packed Al2O3 is full of between silk 2-3 and casing 2-4 wall.
Above-mentioned connector 2-8, holddown spring component 2-9, cooling fin 2-10, corner coupling head 2-11 and high temperature connector 2-
12 are sequentially connected, and connector 2-8 and pressure-bearing casing 1 are fixed, and holddown spring component 2-9 compresses insulating sleeve 2-7, pressure-bearing casing 1
The temperature-sensitive bullet of 2 front end of front end temperature-sensitive position and armouring Pt100 platinum resistance temperature component be inserted in the taper of 1 front end of pressing sleeve pipe
In hole, it is in close contact two tapered surfaces.
Above-mentioned pressure-bearing casing 1 is 316L, and the armor sleeve material of armouring Pt100 platinum resistance temperature sensing part 2 is 316L,
The string diameter of Pt100 resistive platinum wire 2-3 is 0.04mm, and the material of lead 2-6 is pure nickel, and the material of insulating sleeve is Al2O3, connects
The material of junctor 2-8 is 316, and the material of holddown spring component 2-9 is 316, and the material of cooling fin 2-10 is 316, corner coupling head
The material of 2-11 is 316.
Claims (5)
1. a kind of fast-response platinum resistance temperature sensor, it is characterised in that: including pressure-bearing casing, armouring Pt100 platinum resistance temperature-sensitive
Component, the inner hole of pressure-bearing casing front end temperature-sensitive span access location length L are bellmouth, and the front end of armouring Pt100 platinum resistance temperature sensing part is felt
Warm position is bullet, and the taper of the two temperature-sensitive part is identical and is taper-face contact.
2. fast-response platinum resistance temperature sensor according to claim 1, it is characterised in that: pressure-bearing cannula tip face with
Thermally conductive dusty material is full of between the top end face of armouring Pt100 platinum resistance temperature sensing part.
3. fast-response platinum resistance temperature sensor according to claim 1, it is characterised in that: armouring Pt100 platinum resistance sense
It include Pt100 resistive platinum wire in the bullet at the front end temperature-sensitive position of warm component, double wrap is having Al2O3The helicla flute of ceramics pole
It is interior, on the outside of resistive platinum wire, it is cased with Al2O3Powder casing, powder casing undergauge process when be crushed and be compacted, In
The powder of tightly packed Al2O3 is full of between Al2O3 ceramics pole, resistive platinum wire and casing wall.
4. fast-response platinum resistance temperature sensor according to claim 2 or 3, it is characterised in that: the armouring Pt100
Platinum resistance temperature sensing part includes armor sleeve, Al2O3 ceramics pole, Pt100 resistive platinum wire, Al2O3 powder casing, lead, insulation
Casing, connector, holddown spring component, cooling fin, corner coupling head and high temperature connector, connector, holddown spring component, heat dissipation
Piece, corner coupling head and high temperature connector are sequentially connected, and connector is fixed with pressure-bearing casing, holddown spring compressing parts insulation sleeve
Before pipe, the front end temperature-sensitive position of pressure-bearing casing and the temperature-sensitive bullet of armouring Pt100 platinum resistance temperature member forward end are inserted in pressing sleeve pipe
In the bellmouth at end, two tapered surfaces are in close contact, thermally conductive dusty material is compacted.
5. fast-response platinum resistance temperature sensor according to claim 2, it is characterised in that: the thermally conductive powder material
Material is pure nickel powder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822032608.9U CN209623895U (en) | 2018-12-05 | 2018-12-05 | A kind of fast-response platinum resistance temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822032608.9U CN209623895U (en) | 2018-12-05 | 2018-12-05 | A kind of fast-response platinum resistance temperature sensor |
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| Publication Number | Publication Date |
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| CN209623895U true CN209623895U (en) | 2019-11-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029374A (en) * | 2021-04-07 | 2021-06-25 | 大连博控科技股份有限公司 | Manufacturing method of armored platinum resistor temperature sensor with high insulation strength |
-
2018
- 2018-12-05 CN CN201822032608.9U patent/CN209623895U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113029374A (en) * | 2021-04-07 | 2021-06-25 | 大连博控科技股份有限公司 | Manufacturing method of armored platinum resistor temperature sensor with high insulation strength |
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Address after: Workshop 32, No.68, Yuhai East Road, Hangzhou Bay New District, Ningbo City, Zhejiang Province Patentee after: NINGBO AUQI AUTO-INSTRUMENT EQUIPMENT Co.,Ltd. Address before: Jiangbei District, Zhejiang city of Ningbo Province Dongsheng Street 315020 No. 52 Patentee before: NINGBO AUQI AUTO-INSTRUMENT EQUIPMENT Co.,Ltd. |