CN208026391U - A kind of outside measuring PT temperature sensors - Google Patents
A kind of outside measuring PT temperature sensors Download PDFInfo
- Publication number
- CN208026391U CN208026391U CN201721911153.7U CN201721911153U CN208026391U CN 208026391 U CN208026391 U CN 208026391U CN 201721911153 U CN201721911153 U CN 201721911153U CN 208026391 U CN208026391 U CN 208026391U
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- core shell
- magnetic receiver
- sensors
- temperature sensors
- outside measuring
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Abstract
The utility model discloses a kind of outside measuring PT temperature sensors, magnetic receiver including offering cavity, core shell are set in the cavity of magnetic receiver, and PT sensors are equipped in core shell, gap in core shell is perfused with the casting glue of doped aluminium powder, and PT sensors are connected by connecting line with cable；The end face of magnetic receiver is additionally provided with pouring type magnet ring.Using the mounting means for being higher by outermost edge when the utility model exterior measuring sensor core shell is assembled, substantially it is higher by outer edge 0.2-0.5mm, when installing at the scene, magnet is attracted, guarantee sensor is complete, is reliably bonded, and avoids the problem because of sensor measurement inaccuracy caused by installation is unreliable.
Description
Technical field
The utility model belongs to temperature sensor technology field, is related to a kind of outside measuring PT temperature sensors.
Background technology
Several thermometers and behaviour in service of industry spot application at present are as follows：Glass liquid thermometer has intuitive, structure
The advantages that simple, but cannot automatically record, be unable to teletransmission, is frangible, it is relatively low for engineering thermometric accuracy.Industrial thermocouple is excellent
Point is cheap, using convenient to install and maintain, thermal inertia is small, is easy to implement Long Distant Transmit, the disadvantage is that needing to carry out cold end
Temperature-compensating, and its accuracy in commercial measurement is relatively low.Platinum resistance thermometer in thermal resistance have preferable stability and
Repeatability, thermal response time are short and with characteristics such as wider operating temperature ranges, are widely used in medium temperature (- 200~650) DEG C model
During the temperature enclosed measures.
General exterior measuring thermometer is attached by the way of flange, clip, straight cutting or threaded base, meets routine
Installation requirements under it is required that, but in actual oil, chemical industry field application, there are the various workings such as collision, transport and vibrations.
Standard platinum resistance thermometer belongs to precision instrument, and the acceleration of shock and vibration or any other form all may cause tube chamber curved
Bent simultaneously to surround its deformation of timbering, the stress of generation can change its temperature, resistance characteristic, cause temperature sensor receive damage or
It measures inaccurate.
Invention content
The utility model intends to solve the technical problem by providing a kind of outside measuring PT temperature sensors, are ensureing platinum temperature biography
On the basis of sense is accurate, its fixed form is improved, Vibration Condition when transport, detection can be met, especially
Meet requirement of explosion proof.
The utility model is to be achieved through the following technical solutions：
A kind of outside measuring PT temperature sensors, including the magnetic receiver of cavity is offered, core shell is set in the cavity of magnetic receiver
It is interior, PT sensors are equipped in core shell, the gap in core shell is perfused with the casting glue of doped aluminium powder, and PT sensors pass through company
Wiring is connected with cable；The end face of magnetic receiver is additionally provided with pouring type magnet ring.
Sealing ring is additionally provided between the core shell and magnetic receiver to be sealed.
The end of the core shell is packaged with shell cover.
The end face of the magnetic receiver is additionally provided with the O-ring seal of ring core shell.
The PT sensors are fixed on the end of core shell, which is higher by the end face outer edge 0.2- of magnetic receiver
0.5mm。
The end of the magnetic receiver is additionally provided with the adapter of current supply cable conversion.
Compared with prior art, the utility model has technique effect beneficial below：
Outside measuring PT temperature sensors provided by the utility model are attached in such a way that magnet sits external be attracted,
The temperature sensor of exterior measuring mode is used, exterior measuring thermometer is from tank external pelivimetry tank wall temperature, the not liquid in contact tank completely
And gas, realize real isolation measurement；Core shell is filling using alumina powder, and aluminum particle smaller meets industrial transport and wants
It asks, and heat-conducting glue enhancing thermal conduction characteristic is added, both ends are sealed using EPDM modified rubber, and heat conduction, anti-seismic performance are excellent
Good, for hot corresponding speed than very fast, component sealing characteristics are excellent.
Outside measuring PT temperature sensors provided by the utility model use when exterior measuring sensor core shell is assembled and are higher by ragged edge
The mounting means of edge is higher by outer edge 0.2-0.5mm substantially；When installing at the scene, sensor-magnet is attracted to tank skin, is ensured
Sensor is complete, is reliably bonded, and avoids because of the non-uniform problem of sensor measurement caused by installation is unreliable.
Outside measuring PT temperature sensors provided by the utility model, are additionally provided with adapter, carry out the configuration of cable switching,
It carries out turning NPT1/2 outside G1/2, facilitates cable connection and in-site installation
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Wherein：1 is pouring type magnet ring；2 be O-ring seal；3 be shell cover；4 be PT sensors；5 be adapter；6 be line
Cable；7 be sealing ring；8 be core shell；9 be magnetic receiver；10 be casting glue.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings, it is described be explanation to the utility model without
It is to limit.
Referring to Fig. 1, a kind of outside measuring PT temperature sensors, including the magnetic receiver 9 of cavity is offered, core shell 8 is set in magnetic
In the cavity of iron seat 9, PT sensors 4 are equipped in core shell 8, the gap in core shell 8 is perfused with the casting glue of doped aluminium powder
10, PT sensors 4 are connected by connecting line with cable 6；The end face of magnetic receiver 9 is additionally provided with pouring type magnet ring 1.
Further, sealing ring 7 is additionally provided between the core shell 8 and magnetic receiver 9 to be sealed.
The end of the core shell 8 is packaged with shell cover 3.
The end face of the magnetic receiver 9 is additionally provided with the O-ring seal 2 of ring core shell 8.
The PT sensors 4 are fixed on the end of core shell 8, which is higher by the end face outer edge 0.2- of magnetic receiver 9
0.5mm。
The end of the magnetic receiver 9 is additionally provided with the adapter 5 of current supply cable conversion.
Specific embodiment is given below.
A kind of outside measuring PT temperature sensors, by pouring type magnet ring, O-ring seal, shell cover, PT sensors (PT100 temperature
Sensor), adapter, cable, core shell and magnetic receiver composition.Pouring type magnet ring is set on the inside of magnetic receiver, and core shell is located at magnet
Socket, PT sensors are soldered to the fixed structure in core shell and are fixed in seat, and core shell intermediate gaps use aluminium oxide and heat conduction
Glue embedding is sealed between magnetic receiver and core shell with sealing ring, silicon rubber and EPDM modified rubber.
It is attached in such a way that magnet sits external be attracted, that is, uses the temperature sensor of exterior measuring mode.Outer testing temperature
Meter is from tank external pelivimetry tank wall temperature, and not liquids and gases in contact tank completely realize real isolation measurement.Have in measurement
When poisoning, thering is burn into have pressure, inflammable and explosive, the volatile, liquid that easily leaks, since measurement head and instrument are all outside container,
So not liquids and gases in contact tank when installation, maintenance, attended operation, very safe.
Using the mounting means for being higher by outermost edge when exterior measuring sensor core shell is assembled, it is higher by outer edge 0.2- substantially
0.5mm；When installing at the scene, sensor-magnet is attracted to tank skin, ensures that sensor is complete, is reliably bonded, avoids because of peace
Fill it is unreliable caused by the non-uniform problem of sensor measurement.
It can also be simutaneously arranged multiple temperature sensors according to live measuring temperature position, required precision and be surveyed
Amount.
To rapidly adapt to the practical application at scene, adapter is set, the configuration of cable switching is carried out, turn outside G1/2
NPTl/2 facilitates cable connection and in-site installation.
For the scene sealing of chemical instruments, requirement of explosion proof, filling using alumina powder, aluminum particle smaller meets work
Industry transport requires, and heat-conducting glue enhancing thermal conduction characteristic is added, and both ends are sealed using EPDM modified rubber, and heat conduction resists
Shock stability is excellent, and for hot corresponding speed than very fast, component sealing characteristics are excellent.
Sensor core shell is simultaneously higher by outer edge and configured by applied magnetic shelling machine, using magnetic-type whole outer
Shell is arranged, and under magnetic attraction, disclosure satisfy that the reliable measurements for temperature when transport, vibrations.
To measure the actual temperature of tank skin, the temperature sensor outer patch of exterior measuring thermometer is attracted to tank skin exterior measuring, exterior measuring
Using the mounting means for being higher by outermost edge when sensor core shell is assembled, it is higher by outer edge 0.2-0.5mm substantially, pacifies at the scene
When dress, magnet is attracted, and guarantee sensor is complete, is reliably bonded, and avoids because sensor measurement is inaccurate caused by installation is unreliable
True problem.When installation, adds couplant in sensor binding face, be conducive to sensor and be reliably bonded.
To adapt to demand of the different places for precision, multiple thermometer sensor different location combinations can be taken to lay
Mode carries out.
Example given above is to realize that the utility model preferably example, the utility model is not limited to above-mentioned implementation
Example.Those skilled in the art according to the technical characteristic of technical solutions of the utility model made it is any it is nonessential addition,
It replaces, belongs to the scope of protection of the utility model.
Claims (6)
1. a kind of outside measuring PT temperature sensors, which is characterized in that the magnetic receiver (9) including offering cavity, core shell (8) are arranged
In the cavity of magnetic receiver (9), PT sensors (4) are equipped in core shell (8), the gap in core shell (8) is perfused with doped aluminium
The casting glue (10) of powder, PT sensors (4) are connected by connecting line with cable (6)；The end face of magnetic receiver (9), which is additionally provided with, pours
Envelope type magnet ring (1).
2. outside measuring PT temperature sensors as described in claim 1, which is characterized in that the core shell (8) and magnetic receiver (9)
Between be additionally provided with sealing ring (7) and be sealed.
3. outside measuring PT temperature sensors as described in claim 1, which is characterized in that the end of the core shell (8) encapsulates
There is shell cover (3).
4. outside measuring PT temperature sensors as described in claim 1, which is characterized in that the end face of the magnetic receiver (9) is also
O-ring seal (2) equipped with ring core shell (8).
5. outside measuring PT temperature sensors as described in claim 1, which is characterized in that the PT sensors (4) are fixed on
The end of core shell (8), the end are higher by the end face outer edge 0.2-0.5mm of magnetic receiver (9).
6. outside measuring PT temperature sensors as described in claim 1, which is characterized in that the end of the magnetic receiver (9) is also
Adapter (5) equipped with current supply cable conversion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911153.7U CN208026391U (en) | 2017-12-30 | 2017-12-30 | A kind of outside measuring PT temperature sensors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721911153.7U CN208026391U (en) | 2017-12-30 | 2017-12-30 | A kind of outside measuring PT temperature sensors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208026391U true CN208026391U (en) | 2018-10-30 |
Family
ID=63901431
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721911153.7U Active CN208026391U (en) | 2017-12-30 | 2017-12-30 | A kind of outside measuring PT temperature sensors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208026391U (en) |
-
2017
- 2017-12-30 CN CN201721911153.7U patent/CN208026391U/en active Active
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