CN205483316U - Large -scale hydraulic turbine high reliability stator temperature sensor - Google Patents
Large -scale hydraulic turbine high reliability stator temperature sensor Download PDFInfo
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- CN205483316U CN205483316U CN201620147958.8U CN201620147958U CN205483316U CN 205483316 U CN205483316 U CN 205483316U CN 201620147958 U CN201620147958 U CN 201620147958U CN 205483316 U CN205483316 U CN 205483316U
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Abstract
The utility model discloses a large -scale hydraulic turbine high reliability stator temperature sensor, including sensor probe and termination, sensor probe includes connecting seat, protective case, platinum resistance, first wire and second wire, the rear end of connecting seat is equipped with first electrode and second electrode, protective case's the rear end and the front end fixed connection of connecting seat, platinum resistance sets up in protective case, the one end of first wire and second wire stretches into protective case to be connected with platinum resistance, and the other end stretches out and passes the connecting seat from protective case's rear end and corresponds electric connection respectively with first electrode and second electrode, termination includes connector, connecting pipe and terminal box, the one end of connector and the back end screw thread connection of connecting seat, connector have the elastic contact point and the 2nd elastic contact point that correspond electrical contact with first electrode and second electrode respectively in the one end, the other end passes through the connecting pipe and is connected with the terminal box. The utility model discloses can change sensor probe to reduce cost.
Description
Technical field
This utility model relates to temperature sensor, particularly relates to a kind of large-scale water turbine high reliability stator temperature
Degree sensor.
Background technology
Platinum resistance thermometer sensor, is because having good stability and concordance, so platinum resistance sensor has
The highest temperature sensing precision, is widely used in such as each neck such as electric power, machinery, chemical industry, metallurgy
Territory.But, in current platinum resistance sensor structure, it is all integral structure, in use,
So, if platinum resistance thermometer sensor, damages, then need to change whole temperature sensor, therefore, cause cost high,
In-convenience in use more problem.Additionally, the wire between sensor probe and rosette is to pass through welding manner
Weld together, for the motor being incorporated in outdoor environment, be particularly applied in large-scale water turbine,
Owing to environment is more severe, therefore, this welding manner, the problems such as sealing-off easily occur, it is impossible to ensure
The stability of the hydraulic turbine and reliability.
Utility model content
The purpose of this utility model is to overcome deficiency of the prior art to provide a kind of large-scale water turbine high
Reliability stator temperature sensor.
This utility model solves prior art problem and be the technical scheme is that a kind of large-scale water turbine is high
Reliability stator temperature sensor, including:
Sensor probe, described sensor probe include connect seat, protection sleeve pipe, platinum resistance thermometer sensor, first
Wire and the second wire；The rear end of described connection seat is provided with the first electrode and the second electrode；Described protection set
The rear end of pipe and the described fixing connection in front end being connected seat；Described platinum resistance thermometer sensor, is arranged at described protection sleeve pipe
In；One end of described first wire and the second wire is stretched into described protection sleeve pipe and is connected with described platinum resistance thermometer sensor,
The other end of described first wire and the second wire stretches out from the rear end of described protection sleeve pipe and passes described company
Joint chair is the most corresponding with described first electrode and the second electrode to be electrically connected with；
Termination, described termination includes union joint, connecting tube and rosette, described union joint
One end is threaded with the described rear end being connected seat, has and described in described one end of described union joint
One electrode and the second electrode correspondence the first resilient contact in electrical contact and the second resilient contact respectively；Described
The other end of union joint is connected with described rosette by described connecting tube.
Preferably, described connection seat includes:
First hollow stud portion, its outer surface has the first external screw thread, and described first hollow stud portion with
The rear end of described protection sleeve pipe is fixing to be connected；
Second hollow stud portion, is coaxially disposed with described first hollow stud portion, and its outer surface has
Two external screw threads；Described first electrode and the second electrode are arranged in described second hollow stud portion；
Polygon tightens portion, be fixedly connected on described first hollow stud portion and the second hollow stud portion it
Between.
Preferably, described first electrode is cylindric, and described second electrode is cylindric, described first electricity
Pole is coaxially disposed in described second electrode, and and described second electrode between be formed with clearance for insulation, institute
State the second electrode coaxial with described second hollow stud portion.
Preferably, described one end of described union joint is formed with coordinate with described second hollow stud portion suitable
Joining chamber, the inwall in described adaptive chamber is formed with the female thread coordinated with described second external screw thread.
Preferably, described first resilient contact and the second resilient contact are arranged at the bottom in described adaptive chamber.
Preferably, described first resilient contact includes the first spring and conductive contact, described first spring
One end is fixed on the bottom in described adaptive chamber and is connected to by the first holding wire in described connecting tube described
Rosette, the other end of described first spring is connected with described conductive contact；
Described second resilient contact includes the second spring and conducting ring, and the diameter of described second spring is more than institute
Stating the diameter of the first spring, and be coaxially disposed with described first spring, one end of described second spring is fixed
In the bottom in described adaptive chamber and it is connected to described rosette by the secondary signal line in described connecting tube,
The other end of the second spring is connected with described conducting ring.
Preferably, described adaptive intracavity is provided with a guide pin bushing, and the internal diameter of described guide pin bushing is more than described second spring
And second diameter of electrode, and it is coaxially disposed in the outside of described second spring.
Preferably, described connecting tube is corrugated tube.
The large-scale water turbine high reliability stator temperature sensor provided according to this utility model, sensor is visited
Head is threadeded with between termination, therefore, when the platinum resistance thermometer sensor, in sensor probe damages,
Sensor probe can be unloaded, thus the sensor probe more renewed, so, cost can be reduced,
Meanwhile, maintenance is changed convenient.Additionally, the first electrode and the second electrode and the first resilient contact and
Two resilient contacts are in electrical contact, it is achieved by the electric connection between sensor probe and rosette, on the one hand,
May insure that replacing sensor probe is convenient, on the other hand, it is ensured that be electrically connected with relatively reliable, keep away
Exempt from the problems such as the electric connection that causes because of external environmental factors such as vibrations is bad, improve the work of its hydraulic turbine
Stability and reliability.
Accompanying drawing explanation
Fig. 1 is that the structure of this utility model embodiment large-scale water turbine high reliability stator temperature sensor is shown
It is intended to；
Fig. 2 is this utility model embodiment large-scale water turbine high reliability stator temperature sensor decomposing state
Sectional view.
Reference:
Sensor probe 10；
Connect seat 101；
First hollow stud portion 1011；
Second hollow stud portion 1012；
Polygon tightens portion 1013；
First electrode 1014；
Second electrode 1015；
Protection sleeve pipe 102；
Platinum resistance thermometer sensor, 103；
First wire 104；
Second wire 105；
Termination 20；
Union joint 201；
Adaptive chamber 2011；
First spring 2012；
Conductive contact 2013；
Second spring 2014；
Conducting ring 2015；
Guide pin bushing 2016；
Connecting tube 202；
Rosette 203.
The realization of this utility model purpose, functional characteristics and advantage will in conjunction with the embodiments, do referring to the drawings into
One step explanation.
Detailed description of the invention
Of the present utility model embodiment is described below in detail, and the example of described embodiment is shown in the drawings,
The most same or similar label represents same or similar element or has same or like merit
The element of energy.The embodiment described below with reference to accompanying drawing is exemplary, it is intended to be used for explaining this reality
With novel, and it is not intended that to restriction of the present utility model.
In description of the present utility model, it is to be understood that term " " center ", " longitudinally ", " horizontal stroke
To ", " length ", " width ", " thickness ", " on ", D score, "front", "rear",
"left", "right", " vertically ", " level ", " top ", " end " " interior ", " outward ",
The orientation of the instruction such as " clockwise ", " counterclockwise " or position relationship be based on orientation shown in the drawings or
Position relationship, is for only for ease of description this utility model and simplifies description rather than instruction or hint institute
Refer to device or element must have specific orientation, with specific azimuth configuration and operation, therefore can not
It is interpreted as restriction of the present utility model.
Additionally, term " first ", " second " are only used for describing purpose, and it is not intended that instruction or
Hint relative importance or the implicit quantity indicating indicated technical characteristic.Thus, define " the
One ", the feature of " second " can express or implicitly include one or more this feature.?
In description of the present utility model, " multiple " are meant that two or more, unless otherwise clearly having
The restriction of body.
In this utility model, unless otherwise clearly defined and limited, term " install ", " being connected ",
" connect ", the term such as " fixing " should be interpreted broadly, and connects for example, it may be fixing, it is also possible to
It is to removably connect, or is integrally connected；Can be to be mechanically connected, it is also possible to be electrical connection；Can be
It is joined directly together, it is also possible to be indirectly connected to by intermediary, can be the connection of two element internals.Right
For those of ordinary skill in the art, can understand that above-mentioned term is new in this practicality as the case may be
Concrete meaning in type.
Referring to figs. 1 through shown in Fig. 2, it is highly reliable that this utility model embodiment provides a kind of large-scale water turbine
Property stator temperature sensor, including sensor probe 10 and termination 20.
Concrete, sensor probe 10 includes connecting seat 101, protection sleeve pipe, platinum resistance thermometer sensor, first leads
Line and the second wire.The rear end of described connection seat 101 is provided with the first electrode 1014 and the second electrode 1015.
The rear end of described protection sleeve pipe and the described fixing connection in front end being connected seat 101, such as after protection sleeve pipe
End is welded together to form integral structure with the front end being connected seat 101 by welding procedure.Described platinum heat
Resistance is arranged in described protection sleeve pipe.Described protection is stretched in one end of described first wire and the second wire
Sleeve pipe is connected with described platinum resistance thermometer sensor, and the other end of described first wire and the second wire is from described protection set
The rear end of pipe is stretched out and passes described connection seat 101 and described first electrode 1014 and the second electrode 1015
Correspondence is electrically connected with respectively.It is to say, arrange the first electrode 1014 and the in the rear end connecting seat 101
Two electrodes 1015, platinum resistance thermometer sensor, is to be drawn by the first wire and the second wire and be connected to the first electrode
1014 and second electrode 1015.
Termination 20 includes union joint 201, connecting tube 202 and rosette 203, described union joint 201
One end threaded with the described rear end being connected seat 101, have in described one end of described union joint 201
Have and described first electrode 1014 and the second electrode 1015 corresponding first resilient contact in electrical contact respectively
With the second resilient contact；The other end of described union joint 201 is by described connecting tube 202 and described wiring
Box 203 connects.
It is to say, be provided with corresponding with the first electrode 1014 and the second electrode 1015 on union joint 201
The first resilient contact and the second resilient contact, when the connection seat 101 of union joint 201 with sensor probe 10
After threaded, connect the first electrode 1014 on seat 101 just with the first bullet on union joint 201
Property contact offset, connect the second electrode 1015 on seat 101 just elastic with second on union joint 201
Contact offsets, and is electrically connected.
The large-scale water turbine high reliability stator temperature sensor provided according to the present embodiment, sensor probe
Threaded between 10 with termination 20, therefore, the platinum resistance thermometer sensor, in sensor probe 10
During damage, sensor probe 10 can be unloaded, thus the sensor probe 10 more renewed, so, can
To reduce cost, meanwhile, maintenance is changed convenient.Additionally, the first electrode 1014 and the second electrode 1015
In electrical contact with the first resilient contact and the second resilient contact, it is achieved by sensor probe 10 and rosette 203
Between electric connection, on the one hand, may insure that replacing sensor probe 10 convenient, on the other hand,
Guarantee to be electrically connected with relatively reliable, it is to avoid the electric connection that causes because of external environmental factors such as vibrations is bad etc.
Problem, improves stability and the reliability of the work of its hydraulic turbine.
In a preferred embodiment of the present utility model, connect seat 101 and include the first hollow stud portion
1011, the second hollow stud portion 1012 and polygon tighten portion 1013.Wherein, the first hollow stud portion
The outer surface of 1011 has the first external screw thread, and described first hollow stud portion 1011 and described protection sleeve pipe
Rear end fixing connect.Second hollow stud portion 1012 coaxially sets with described first hollow stud portion 1011
Put, and its outer surface has the second external screw thread；Described first electrode 1014 and the second electrode 1015 are arranged
In described second hollow stud portion 1012.Polygon is tightened portion 1013 and is fixedly connected on and described first
Between hollow stud portion 1011 and the second hollow stud portion 1012.
Above-mentioned first hollow stud portion 1011 for being connected installation with the hydraulic turbine, and polygon tightens portion
1013 apply rotating force for convenient, are when the hydraulic turbine connects installation, can be by rotation
Turn polygon to tighten portion 1013 and drive whole temperature sensor to rotate, and then make the first hollow stud portion
1011 are tightened on the screwed hole of the hydraulic turbine.Second hollow stud portion 1012 be then for union joint 201
Threaded, to realize being connected between sensor probe 10 with termination 20.
In the present embodiment, use said structure, so that the peace between this temperature sensor and hydraulic turbine
Dress is fixing convenient, meanwhile, is also convenient for threadeding between termination 20.Additionally, its knot
Structure is the compactest.
In an embodiment of the present utility model, the first electrode 1014 is cylindric, described second electrode
1015 is cylindric, and described first electrode 1014 is coaxially disposed in described second electrode 1015, and with
Clearance for insulation it is formed with, in described second electrode 1015 and described second between described second electrode 1015
Empty stud portion 1012 is coaxial.
It is to say, the internal diameter of the first electrode 1014 is more than the external diameter of the second electrode 1015, and, the
Two electrodes 1015 are coaxially disposed in the first electrode 1014 internal, so, convenient in union joint 201
On the first resilient contact and the second resilient contact contact, and, it is simple and compact for structure, meanwhile, protect
Hold the good insulation between the first electrode 1014 and the second electrode 1015, it is to avoid the problems such as short circuit.
More specifically, in an example of the present utility model, described one end of union joint 201 is formed
There are the adaptive chamber 2011 coordinated with described second hollow stud portion 1012, the inwall in described adaptive chamber 2011
It is formed with the female thread coordinated with described second external screw thread.So, convenient in connecting seat 101 and connecting
Between joint 201 threaded.Furthermore, it is possible to guarantee to connect with being connected between seat 101 by union joint 201
Connect more solid and reliable.
Corresponding, the first resilient contact and the second resilient contact are arranged at the bottom in described adaptive chamber 2011.
So, when union joint 201 be connected seat 101 threaded after, the first resilient contact and second elastic touches
Together with point can be conflicted with the first electrode 1014 and the second electrode 1015 more accurately, conflict area is more
Greatly, relatively reliable electric connection is then formed.
In a preferred embodiment of the present utility model, the first resilient contact include the first spring 2012 and
Conductive contact 2013, one end of described first spring 2012 be fixed on described adaptive chamber 2011 bottom and
It is connected to described rosette 203, described first spring by the first holding wire in described connecting tube 202
The other end of 2012 is connected with described conductive contact 2013；
Second resilient contact includes the second spring 2014 and conducting ring 2015, described second spring 2014
Diameter is more than the diameter of described first spring 2012, and is coaxially disposed with described first spring 2012, institute
The bottom in described adaptive chamber 2011 is fixed on and by described connecting tube 202 in the one end stating the second spring 2014
Interior secondary signal line is connected to described rosette 203, the other end of the second spring 2014 and described conduction
Ring 2015 connects.
When the second hollow stud portion 1012 on union joint 201 and the adaptive chamber 2011 being connected on seat 101
After threaded, the first electrode 1014 can offset with conductive contact 2013, and the first spring 2012 compresses,
And the second electrode 1015 can offset with conducting ring 2015, the second spring 2014 compresses.So, permissible
Realize good electric connection.
It should be noted that owing to the first spring 2012 and the second spring 2014 have elasticity, so,
When the external actions such as vibration occur, between the first electrode 1014 and conductive contact 2013, the second electrode
It still is able to keep good electric connection between 1015 and conducting ring 2015, does not haves the faults such as open circuit and ask
Topic.
More favorably, in an embodiment of the present utility model, in adaptive chamber 2011, it is provided with a guide pin bushing
2016, the internal diameter of described guide pin bushing 2016 is more than described second spring 2014 and the diameter of the second electrode 1015,
And be coaxially disposed in the outside of described second spring 2014.So, first spring the 2012, second spring
2014 all can compress smoothly in the axial direction of guide pin bushing 2016 or reset, and then guarantee the first electrode 1014
And the reliability being electrically connected with between conductive contact 2013, between the second electrode 1015 and conducting ring 2015.
As preferably, connecting tube 202 is corrugated tube, and corrugated tube has bigger intensity, has meanwhile
Certain bending effect, therefore, it can protect its internal holding wire.
In sum, the large-scale water turbine high reliability stator temperature sensor provided according to this utility model,
It is to threaded between sensor probe 10 with termination 20, the sensor probe 10 that can more renew,
And then cost can be reduced, meanwhile, maintenance is changed convenient.Additionally, the first electrode 1014 and second
Electrode 1015 is in electrical contact with the first resilient contact and the second resilient contact, it is achieved by sensor probe 10
And the electric connection between rosette 203, on the one hand, may insure that replacing sensor probe 10 is more square
Just, on the other hand, it is ensured that be electrically connected with relatively reliable, it is to avoid because the external environmental factors such as vibration cause
It is electrically connected with the problems such as bad, improves stability and the reliability of the work of its hydraulic turbine.
In the description of this specification, reference term " embodiment ", " some embodiments ", " show
Example ", the description of " concrete example " or " some examples " etc. means to combine this embodiment or example is retouched
Specific features, structure, material or the feature stated be contained at least one embodiment of the present utility model or
In example.In this manual, the schematic representation to above-mentioned term is not necessarily referring to identical enforcement
Example or example.And, the specific features of description, structure, material or feature can be at any one
Or multiple embodiment or example combine in an appropriate manner.
Although above it has been shown and described that embodiment of the present utility model, it is to be understood that above-mentioned
Embodiment is exemplary, it is impossible to be interpreted as restriction of the present utility model, the ordinary skill people of this area
Member can be right in the range of this utility model in the case of without departing from principle of the present utility model and objective
Above-described embodiment is changed, revises, replaces and modification.
Claims (8)
1. a large-scale water turbine high reliability stator temperature sensor, it is characterised in that including:
Sensor probe, described sensor probe include connect seat, protection sleeve pipe, platinum resistance thermometer sensor, first
Wire and the second wire；The rear end of described connection seat is provided with the first electrode and the second electrode；Described protection set
The rear end of pipe and the described fixing connection in front end being connected seat；Described platinum resistance thermometer sensor, is arranged at described protection sleeve pipe
In；One end of described first wire and the second wire is stretched into described protection sleeve pipe and is connected with described platinum resistance thermometer sensor,
The other end of described first wire and the second wire stretches out from the rear end of described protection sleeve pipe and passes described company
Joint chair is the most corresponding with described first electrode and the second electrode to be electrically connected with；
Termination, described termination includes union joint, connecting tube and rosette, described union joint
One end is threaded with the described rear end being connected seat, has and described in described one end of described union joint
One electrode and the second electrode correspondence the first resilient contact in electrical contact and the second resilient contact respectively；Described
The other end of union joint is connected with described rosette by described connecting tube.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 1, its feature
Being, described connection seat includes:
First hollow stud portion, its outer surface has the first external screw thread, and described first hollow stud portion with
The rear end of described protection sleeve pipe is fixing to be connected；
Second hollow stud portion, is coaxially disposed with described first hollow stud portion, and its outer surface has
Two external screw threads；Described first electrode and the second electrode are arranged in described second hollow stud portion；
Polygon tightens portion, be fixedly connected on described first hollow stud portion and the second hollow stud portion it
Between.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 2, its feature
Being, described first electrode is cylindric, and described second electrode is cylindric, and described first electrode is coaxial
Be arranged in described second electrode, and and described second electrode between be formed with clearance for insulation, described second
Electrode is coaxial with described second hollow stud portion.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 2, its feature
Being, described one end of described union joint is formed with the adaptive chamber coordinated with described second hollow stud portion,
The inwall in described adaptive chamber is formed with the female thread coordinated with described second external screw thread.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 4, its feature
Being, described first resilient contact and the second resilient contact are arranged at the bottom in described adaptive chamber.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 5, its feature
Being, described first resilient contact includes the first spring and conductive contact, and one end of described first spring is solid
Due to the bottom in described adaptive chamber and it is connected to described wiring by the first holding wire in described connecting tube
Box, the other end of described first spring is connected with described conductive contact；
Described second resilient contact includes the second spring and conducting ring, and the diameter of described second spring is more than institute
Stating the diameter of the first spring, and be coaxially disposed with described first spring, one end of described second spring is fixed
In the bottom in described adaptive chamber and it is connected to described rosette by the secondary signal line in described connecting tube,
The other end of the second spring is connected with described conducting ring.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 6, its feature
Being, described adaptive intracavity is provided with a guide pin bushing, and the internal diameter of described guide pin bushing is more than described second spring and second
The diameter of electrode, and be coaxially disposed in the outside of described second spring.
Large-scale water turbine high reliability stator temperature sensor the most according to claim 1, its feature
Being, described connecting tube is corrugated tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147958.8U CN205483316U (en) | 2016-02-27 | 2016-02-27 | Large -scale hydraulic turbine high reliability stator temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620147958.8U CN205483316U (en) | 2016-02-27 | 2016-02-27 | Large -scale hydraulic turbine high reliability stator temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205483316U true CN205483316U (en) | 2016-08-17 |
Family
ID=56678525
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620147958.8U Active CN205483316U (en) | 2016-02-27 | 2016-02-27 | Large -scale hydraulic turbine high reliability stator temperature sensor |
Country Status (1)
| Country | Link |
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| CN (1) | CN205483316U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702249A (en) * | 2019-11-19 | 2020-01-17 | 安徽青润精密科技有限公司 | Armored thermocouple junction box and sealing method thereof |
| CN113465776A (en) * | 2021-05-10 | 2021-10-01 | 深圳阿珂法先进科技有限公司 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
| CN114088232A (en) * | 2020-06-30 | 2022-02-25 | 中国石油天然气股份有限公司 | Platinum resistance component |
-
2016
- 2016-02-27 CN CN201620147958.8U patent/CN205483316U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110702249A (en) * | 2019-11-19 | 2020-01-17 | 安徽青润精密科技有限公司 | Armored thermocouple junction box and sealing method thereof |
| CN110702249B (en) * | 2019-11-19 | 2020-12-29 | 安徽青润精密科技有限公司 | Armored thermocouple junction box and sealing method thereof |
| CN114088232A (en) * | 2020-06-30 | 2022-02-25 | 中国石油天然气股份有限公司 | Platinum resistance component |
| CN113465776A (en) * | 2021-05-10 | 2021-10-01 | 深圳阿珂法先进科技有限公司 | Power equipment temperature sensor convenient to replace and monitoring method thereof |
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