CN206787723U - A kind of explosion-proof non-contact infrared temperature sensor - Google Patents
A kind of explosion-proof non-contact infrared temperature sensor Download PDFInfo
- Publication number
- CN206787723U CN206787723U CN201720359363.3U CN201720359363U CN206787723U CN 206787723 U CN206787723 U CN 206787723U CN 201720359363 U CN201720359363 U CN 201720359363U CN 206787723 U CN206787723 U CN 206787723U
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- infrared temperature
- temperature probe
- steel plate
- outer cover
- explosion
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Abstract
The utility model discloses a kind of explosion-proof non-contact infrared temperature sensor, it belongs to temperature sensor field, and it includes column outer cover of steel plate, infrared temperature probe and laser reflection pipe；The induction end of the infrared temperature probe is stretched out the column outer cover of steel plate and set, and the laser reflection pipe is arranged on the column outer cover of steel plate and laser direction and the infrared temperature probe are axially horizontal；Felt pad is provided between the infrared temperature probe and column outer cover of steel plate；The utility model has the advantages that rational in infrastructure, effective prevent electrostatic and measurement distance length.
Description
Technical field
A kind of explosion-proof non-contact infrared temperature sensor is the utility model is related to, it belongs to temperature sensor field.
Background technology
At present, the national safety in production for colliery has carried out the regulation compared with great dynamicses, but the situation of production in colliery
Still severeer, the present temperature sensor in colliery application in colliery is that the blast of gas, coal dust in five big disasters accounts for
Arrive certain ratio, moreover, the mine that accident occurs in addition to the geological conditions of itself, be mostly because human factor cause
, either it is monitoring instrument of the scene without national regulation, or it is that monitor monitoring is not in place.For having watt in underground coal mine
This, in the belt lane of explosion risk such as coal dust, the running status of rubber conveyer is to be monitored, and it includes the speed of adhesive tape
Degree, sideslip, carbonomonoxide concentration, smokescope, coal piling, head are bought securities with all one's capital and the temperature parameter of drive roll, especially roller
The monitoring of temperature parameter is to directly influence gas explosion risk parameters.Because drive roll is rotating mechanism, and belt
Conveyer adhesive tape during motion press against roller and moving always, so as to cause the limitation of in-site installation condition to cause not having at present
There is good monitoring device to monitor the temperature of moving component.
Utility model content
Technical problem to be solved in the utility model there is provided it is a kind of it is rational in infrastructure, effectively prevent electrostatic and measurement away from
From long explosion-proof non-contact infrared temperature sensor.
The technical solution of the utility model is as follows：
A kind of explosion-proof non-contact infrared temperature sensor, it includes column outer cover of steel plate, infrared temperature probe and laser
Reflection tube；The induction end of the infrared temperature probe is stretched out the column outer cover of steel plate and set, and the laser reflection pipe is arranged on
On the column outer cover of steel plate and laser direction and the infrared temperature probe are axially horizontal；The infrared temperature probe and column
Felt pad is provided between outer cover of steel plate.
Further, the utility model also includes intrinsic safety loop, and the infrared temperature probe belongs to the element of intrinsic safety loop one.
Further, the felt pad is step felt pad.
Further, the utility model also includes voltage-regulator diode D and current-limiting resistance R, the voltage-regulator diode D and described
Infrared temperature probe is arranged in parallel, the current-limiting resistance R and the infrared temperature probe are arranged in series.
Further, the utility model also includes the display window being arranged on the column outer cover of steel plate, the intrinsic safety electricity
Road also includes charactron, the charactron that the output signal of the infrared temperature probe is accessed in the intrinsically safe circuit, the display
The charactron top that window is directed at for showing real time temperature is set.
The beneficial effects of the utility model are as follows：
Shell of the present utility model uses column outer cover of steel plate, can prevent electrostatic from causing flammable gas explosion；This practicality is new
Temperature sensor in type uses infrared temperature probe, and measured point does not have to contact with temperature sensor, measurement distance length；This practicality
It is new that measured point is directed at using laser reflection pipe, accurate positioning is realized, it is flexible for installation.
Because infrared temperature probe belongs to the element of intrinsic safety loop one, infrared temperature probe and column steel plate in the utility model
Insulated between shell using step felt pad so that the earth-free requirement for meeting intrinsic safety loop in intrinsic safety loop.This practicality
Voltage-regulator diode has also been added to also add resistance as current-limiting resistance as overvoltage protection in new in the design so that this
Maximum current in utility model is not over 80mA so as to having reached the requirement of intrinsic safety so that the utility model can be used for colliery
There is the place of the explosion risks such as gas, coal dust underground.
The utility model also has display function, carries display window on column outer cover of steel plate, permeable display window sees it
The interior charactron for being used to show real time temperature.
The utility model has two kinds of output signals, first, rate-adaptive pacemaker, another is exported for low and high level, to meet difference
User uses.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is Fig. 1 sectional view.
Fig. 3 is the circuit theory diagrams of intrinsically safe circuit part in the utility model.
Wherein, 1 column outer cover of steel plate, 2 laser reflection pipes, 3 infrared temperature probes, 4 felt pads, 5 display windows, 6 charactrons.
Embodiment
The utility model is described further with reference to Fig. 1 ~ Fig. 3 and embodiment.
As shown in Fig. 1 ~ Fig. 2, the present embodiment is related to a kind of explosion-proof non-contact infrared temperature sensor, and it includes column steel
Plate shell 1, infrared temperature probe 3 and laser reflection pipe 2；The induction end of the infrared temperature probe 3 stretches out the column steel plate
Shell 1 is set, and the laser reflection pipe 2 is arranged on the column outer cover of steel plate 1 and laser direction is visited with the infrared measurement of temperature
First 3 is axially horizontal；Felt pad 4 is provided between the infrared temperature probe 3 and column outer cover of steel plate 1.
Further, the utility model also includes intrinsic safety loop, and the infrared temperature probe 3 belongs to intrinsic safety loop unitary
Part.
Further, the felt pad 4 is step felt pad.
Further, the utility model also includes voltage-regulator diode D and current-limiting resistance R, the voltage-regulator diode D and described
Infrared temperature probe 3 is arranged in parallel, the current-limiting resistance R and the infrared temperature probe 3 are arranged in series.
Further, the utility model also includes the display window 5 being arranged on the column outer cover of steel plate 1, the intrinsic safety
Circuit also includes charactron 6, the charactron 6 that the output signal of the infrared temperature probe 3 is accessed in the intrinsically safe circuit, described
Display window 5 is aligned for showing that the top of charactron 6 of real time temperature is set.
Shell of the present utility model uses column outer cover of steel plate 1, can prevent electrostatic from causing flammable gas explosion；This practicality is new
Temperature sensor in type uses infrared temperature probe 3, and measured point does not have to contact with temperature sensor, measurement distance length；This reality
Measured point is directed at using laser reflection pipe 2 with new, realizes accurate positioning, it is flexible for installation.
Because infrared temperature probe 3 belongs to the element of intrinsic safety loop one, the infrared temperature probe 3 and post in the utility model
Insulated between shape outer cover of steel plate 1 using step felt pad 4 so that intrinsic safety loop is earth-free to meet wanting for intrinsic safety loop
Ask.
Voltage-regulator diode D has also been added to also add resistance conduct as overvoltage protection in the utility model in the design
Current-limiting resistance R so that the maximum current in the utility model is not over 80mA, so as to reach the requirement of intrinsic safety so that this
Utility model can be used for the place that underground coal mine has the explosion risks such as gas, coal dust.
The utility model also has display function, and display window 5 is carried on column outer cover of steel plate, can pass through display window 5 and sees
It is used for the charactron 6 for showing real time temperature in it.
The utility model has two kinds of output signals, first, rate-adaptive pacemaker, another is exported for low and high level, to meet difference
User uses.
The operation principle of intrinsically safe circuit part is as follows in the utility model：
As shown in figure 3, the output end of the infrared temperature probe 3 is by the in parallel therewith of current-limiting resistance R connected in series
Voltage-regulator diode D accesses model LM331 VF converters, then with VF converters voltage signal to be transformed into frequency signal defeated
Go out.Wherein exported all the way directly as the frequency signal of infrared temperature probe 3, another way access model 12C5204AD CPU
Module, real time temperature is on the one hand carried out by CPU module and shown；On the other hand an on-off model is exported by CPU module,
Realize more than design temperature to be high level, be low level output less than design temperature.
Above-mentioned detailed description is illustrating for the utility model possible embodiments, and the embodiment simultaneously is not used to limit
The scope of the claims of the present utility model, it is all without departing from equivalence enforcement of the present utility model or change, it is intended to be limited solely by the patent of this case
In protection domain.
Claims (5)
- A kind of 1. explosion-proof non-contact infrared temperature sensor, it is characterised in that：It includes column outer cover of steel plate（1）, infrared survey Temperature probe（3）With laser reflection pipe（2）；The infrared temperature probe（3）Induction end stretch out the column outer cover of steel plate（1）If Put, the laser reflection pipe（2）It is arranged on the column outer cover of steel plate（1）Upper and laser direction and the infrared temperature probe （3）It is axially horizontal；The infrared temperature probe（3）With column outer cover of steel plate（1）Between be provided with felt pad（4）.
- A kind of 2. explosion-proof non-contact infrared temperature sensor according to claim 1, it is characterised in that：It also includes this Pacify loop, the infrared temperature probe（3）Belong to the element of intrinsic safety loop one.
- A kind of 3. explosion-proof non-contact infrared temperature sensor according to claim 1, it is characterised in that：The felt pad （4）For step felt pad.
- A kind of 4. explosion-proof non-contact infrared temperature sensor according to claim 1, it is characterised in that：It also includes steady Press diode D and current-limiting resistance R, the voltage-regulator diode D and the infrared temperature probe（3）It is arranged in parallel, current limliting electricity Hinder R and the infrared temperature probe（3）It is arranged in series.
- A kind of 5. explosion-proof non-contact infrared temperature sensor according to claim 2, it is characterised in that：It also includes setting Put in the column outer cover of steel plate（1）On display window（5）, the intrinsically safe circuit also includes charactron（6）, the infrared measurement of temperature Probe（3）The charactron that accesses in the intrinsically safe circuit of output signal（6）, the display window（5）It is aligned for showing in real time The charactron of temperature（6）Top is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359363.3U CN206787723U (en) | 2017-04-07 | 2017-04-07 | A kind of explosion-proof non-contact infrared temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720359363.3U CN206787723U (en) | 2017-04-07 | 2017-04-07 | A kind of explosion-proof non-contact infrared temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206787723U true CN206787723U (en) | 2017-12-22 |
Family
ID=60706782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720359363.3U Active CN206787723U (en) | 2017-04-07 | 2017-04-07 | A kind of explosion-proof non-contact infrared temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206787723U (en) |
-
2017
- 2017-04-07 CN CN201720359363.3U patent/CN206787723U/en active Active
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